./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 --- 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 17:46:06,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:46:06,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:46:06,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:46:06,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:46:06,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:46:06,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:46:06,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:46:06,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:46:06,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:46:06,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:46:06,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:46:06,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:46:06,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:46:06,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:46:06,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:46:06,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:46:06,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:46:06,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:46:06,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:46:06,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:46:06,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:46:06,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:46:06,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:46:06,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:46:06,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:46:06,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:46:06,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:46:06,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:46:06,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:46:06,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:46:06,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:46:06,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:46:06,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:46:06,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:46:06,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:46:06,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:46:06,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:46:06,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:46:06,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:46:06,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:46:06,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:46:06,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:46:06,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:46:06,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:46:06,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:46:06,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:46:06,469 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:46:06,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:46:06,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:46:06,471 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:46:06,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:46:06,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:46:06,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:46:06,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:46:06,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:46:06,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:46:06,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:46:06,474 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:46:06,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:46:06,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:46:06,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:46:06,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:46:06,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:46:06,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:46:06,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:46:06,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:46:06,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:46:06,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:46:06,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:46:06,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:46:06,479 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:46:06,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:46:06,480 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 [2022-11-25 17:46:06,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:46:06,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:46:06,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:46:06,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:46:06,957 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:46:06,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2022-11-25 17:46:10,366 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:46:11,181 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:46:11,182 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2022-11-25 17:46:11,253 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/data/f681142bb/115a86c2e46a460f9de30bc543e4fceb/FLAG894564996 [2022-11-25 17:46:11,276 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/data/f681142bb/115a86c2e46a460f9de30bc543e4fceb [2022-11-25 17:46:11,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:46:11,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:46:11,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:46:11,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:46:11,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:46:11,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:46:11" (1/1) ... [2022-11-25 17:46:11,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1d53ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:11, skipping insertion in model container [2022-11-25 17:46:11,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:46:11" (1/1) ... [2022-11-25 17:46:11,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:46:11,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:46:12,287 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:46:12,872 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:46:12,874 WARN L623 FunctionHandler]: Unknown extern function print_hex_dump [2022-11-25 17:46:12,884 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:46:12,885 WARN L623 FunctionHandler]: Unknown extern function print_hex_dump [2022-11-25 17:46:12,904 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:12,906 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 17:46:12,909 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:46:12,911 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:46:12,912 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:46:12,914 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:12,946 WARN L623 FunctionHandler]: Unknown extern function schedule_work [2022-11-25 17:46:12,947 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:12,952 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:12,955 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:46:13,079 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 17:46:13,087 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 17:46:13,092 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 17:46:13,105 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,110 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,114 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,147 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,246 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:13,252 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,261 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,268 WARN L623 FunctionHandler]: Unknown extern function crc32_be [2022-11-25 17:46:13,273 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,290 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,297 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,315 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,317 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,319 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:13,328 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,330 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,334 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,336 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,337 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,337 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,338 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:13,339 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,341 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,342 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,343 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,344 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,345 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,346 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,346 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,347 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,348 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,349 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,349 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,350 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,351 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,353 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,354 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,355 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,355 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,356 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,358 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,359 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,359 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,360 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,360 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,361 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,362 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,362 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,363 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,364 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,365 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,365 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,511 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:13,525 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,533 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:13,544 WARN L623 FunctionHandler]: Unknown extern function dvb_register_device [2022-11-25 17:46:13,545 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,547 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_device [2022-11-25 17:46:13,554 WARN L623 FunctionHandler]: Unknown extern function dvb_generic_release [2022-11-25 17:46:13,555 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-25 17:46:13,556 WARN L623 FunctionHandler]: Unknown extern function dvb_generic_open [2022-11-25 17:46:13,557 WARN L623 FunctionHandler]: Unknown extern function dvb_generic_ioctl [2022-11-25 17:46:13,566 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,566 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,569 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,570 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:13,571 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,571 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,582 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,761 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,763 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,764 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,766 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,767 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,772 WARN L623 FunctionHandler]: Unknown extern function dvb_register_adapter [2022-11-25 17:46:13,773 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_init [2022-11-25 17:46:13,774 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_init [2022-11-25 17:46:13,780 WARN L623 FunctionHandler]: Unknown extern function dvb_net_init [2022-11-25 17:46:13,780 WARN L623 FunctionHandler]: Unknown extern function dvb_register_frontend [2022-11-25 17:46:13,781 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:13,782 WARN L623 FunctionHandler]: Unknown extern function dvb_net_release [2022-11-25 17:46:13,783 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-11-25 17:46:13,783 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-11-25 17:46:13,784 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-11-25 17:46:13,784 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,785 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_frontend [2022-11-25 17:46:13,785 WARN L623 FunctionHandler]: Unknown extern function dvb_net_release [2022-11-25 17:46:13,786 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-11-25 17:46:13,787 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-11-25 17:46:13,787 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-11-25 17:46:13,788 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,788 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,789 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,789 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:13,790 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,791 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,791 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,792 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 17:46:13,793 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,794 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 17:46:13,794 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,847 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,907 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:13,909 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,909 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,910 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,910 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:13,911 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,911 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:13,912 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:13,935 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 17:46:14,026 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:46:14,032 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:46:14,036 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:46:14,196 WARN L623 FunctionHandler]: Unknown extern function fw_run_transaction [2022-11-25 17:46:14,203 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_queue [2022-11-25 17:46:14,208 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,210 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_swfilter_packets [2022-11-25 17:46:14,211 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,211 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_queue_flush [2022-11-25 17:46:14,213 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_create [2022-11-25 17:46:14,214 WARN L623 FunctionHandler]: Unknown extern function fw_iso_buffer_init [2022-11-25 17:46:14,215 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_start [2022-11-25 17:46:14,216 WARN L623 FunctionHandler]: Unknown extern function fw_iso_buffer_destroy [2022-11-25 17:46:14,216 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_destroy [2022-11-25 17:46:14,217 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:14,218 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_stop [2022-11-25 17:46:14,218 WARN L623 FunctionHandler]: Unknown extern function fw_iso_buffer_destroy [2022-11-25 17:46:14,219 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_destroy [2022-11-25 17:46:14,219 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:14,226 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:46:14,235 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 17:46:14,235 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:46:14,236 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 17:46:14,236 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:46:14,237 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 17:46:14,237 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 17:46:14,238 WARN L623 FunctionHandler]: Unknown extern function fw_csr_string [2022-11-25 17:46:14,239 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 17:46:14,241 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:46:14,241 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:14,247 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:46:14,247 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:46:14,248 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:14,259 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:46:14,266 WARN L623 FunctionHandler]: Unknown extern function fw_core_add_address_handler [2022-11-25 17:46:14,267 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-11-25 17:46:14,268 WARN L623 FunctionHandler]: Unknown extern function fw_core_remove_address_handler [2022-11-25 17:46:14,273 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 17:46:14,273 WARN L623 FunctionHandler]: Unknown extern function fw_core_remove_address_handler [2022-11-25 17:46:14,292 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,293 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,293 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,294 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:14,295 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,295 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,295 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,370 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 17:46:14,376 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 17:46:14,379 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-11-25 17:46:14,380 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-11-25 17:46:14,381 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:14,381 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-11-25 17:46:14,382 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 17:46:14,382 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:14,383 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-11-25 17:46:14,385 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:46:14,386 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,386 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,387 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,387 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:14,388 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,388 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,389 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,394 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_fb252be1-93c4-4bab-8de7-88e4d6f57dff/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2022-11-25 17:46:14,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:46:14,595 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:46:14,817 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:46:14,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:46:14,836 WARN L623 FunctionHandler]: Unknown extern function print_hex_dump [2022-11-25 17:46:14,837 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:46:14,837 WARN L623 FunctionHandler]: Unknown extern function print_hex_dump [2022-11-25 17:46:14,840 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,840 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 17:46:14,841 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:46:14,842 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:46:14,842 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:46:14,843 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,846 WARN L623 FunctionHandler]: Unknown extern function schedule_work [2022-11-25 17:46:14,847 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:14,848 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,849 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:46:14,882 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 17:46:14,885 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 17:46:14,888 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 17:46:14,890 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,892 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,893 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,905 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,924 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:14,937 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,941 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,942 WARN L623 FunctionHandler]: Unknown extern function crc32_be [2022-11-25 17:46:14,944 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,952 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,953 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,955 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,956 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,957 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:14,959 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,960 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,960 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,962 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,962 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,962 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,963 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:14,964 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,965 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,965 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,965 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,966 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,966 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,967 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,967 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,967 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,968 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,968 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,968 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,969 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,969 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,969 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,970 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,970 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,971 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,971 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,971 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,972 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,972 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,972 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,973 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,974 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,974 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,974 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,975 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,975 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,975 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:14,976 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:14,994 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:14,997 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:14,999 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:15,002 WARN L623 FunctionHandler]: Unknown extern function dvb_register_device [2022-11-25 17:46:15,003 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,004 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_device [2022-11-25 17:46:15,005 WARN L623 FunctionHandler]: Unknown extern function dvb_generic_release [2022-11-25 17:46:15,005 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-25 17:46:15,006 WARN L623 FunctionHandler]: Unknown extern function dvb_generic_open [2022-11-25 17:46:15,007 WARN L623 FunctionHandler]: Unknown extern function dvb_generic_ioctl [2022-11-25 17:46:15,008 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,008 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,009 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,010 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:15,011 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,013 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,017 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,020 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,022 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,022 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,024 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,026 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,031 WARN L623 FunctionHandler]: Unknown extern function dvb_register_adapter [2022-11-25 17:46:15,032 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_init [2022-11-25 17:46:15,033 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_init [2022-11-25 17:46:15,034 WARN L623 FunctionHandler]: Unknown extern function dvb_net_init [2022-11-25 17:46:15,035 WARN L623 FunctionHandler]: Unknown extern function dvb_register_frontend [2022-11-25 17:46:15,035 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:46:15,036 WARN L623 FunctionHandler]: Unknown extern function dvb_net_release [2022-11-25 17:46:15,037 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-11-25 17:46:15,038 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-11-25 17:46:15,038 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-11-25 17:46:15,039 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,040 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_frontend [2022-11-25 17:46:15,040 WARN L623 FunctionHandler]: Unknown extern function dvb_net_release [2022-11-25 17:46:15,042 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-11-25 17:46:15,042 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-11-25 17:46:15,042 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-11-25 17:46:15,043 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,043 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,044 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,044 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:15,044 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,046 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,046 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,046 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 17:46:15,047 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,047 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 17:46:15,048 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,049 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,137 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,138 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,139 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,139 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,140 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:15,140 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,140 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,141 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,141 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 17:46:15,143 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:46:15,143 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:46:15,143 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:46:15,148 WARN L623 FunctionHandler]: Unknown extern function fw_run_transaction [2022-11-25 17:46:15,150 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_queue [2022-11-25 17:46:15,153 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,154 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_swfilter_packets [2022-11-25 17:46:15,154 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:46:15,155 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_queue_flush [2022-11-25 17:46:15,156 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_create [2022-11-25 17:46:15,157 WARN L623 FunctionHandler]: Unknown extern function fw_iso_buffer_init [2022-11-25 17:46:15,158 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_start [2022-11-25 17:46:15,159 WARN L623 FunctionHandler]: Unknown extern function fw_iso_buffer_destroy [2022-11-25 17:46:15,160 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_destroy [2022-11-25 17:46:15,160 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:15,162 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_stop [2022-11-25 17:46:15,162 WARN L623 FunctionHandler]: Unknown extern function fw_iso_buffer_destroy [2022-11-25 17:46:15,162 WARN L623 FunctionHandler]: Unknown extern function fw_iso_context_destroy [2022-11-25 17:46:15,162 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:15,164 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:46:15,167 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 17:46:15,167 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:46:15,168 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 17:46:15,168 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:46:15,168 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 17:46:15,169 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 17:46:15,169 WARN L623 FunctionHandler]: Unknown extern function fw_csr_string [2022-11-25 17:46:15,170 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 17:46:15,171 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:46:15,171 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:15,172 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:46:15,172 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:46:15,173 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:15,173 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:46:15,175 WARN L623 FunctionHandler]: Unknown extern function fw_core_add_address_handler [2022-11-25 17:46:15,175 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-11-25 17:46:15,176 WARN L623 FunctionHandler]: Unknown extern function fw_core_remove_address_handler [2022-11-25 17:46:15,176 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 17:46:15,176 WARN L623 FunctionHandler]: Unknown extern function fw_core_remove_address_handler [2022-11-25 17:46:15,179 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,180 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,180 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,180 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:15,181 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,181 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,181 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,182 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 17:46:15,183 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 17:46:15,187 WARN L623 FunctionHandler]: Unknown extern function kmemdup [2022-11-25 17:46:15,188 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-11-25 17:46:15,188 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:15,188 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-11-25 17:46:15,189 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 17:46:15,189 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:46:15,189 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-11-25 17:46:15,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:46:15,195 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,195 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,195 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,196 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:46:15,196 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,196 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:46:15,197 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:46:15,197 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_fb252be1-93c4-4bab-8de7-88e4d6f57dff/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2022-11-25 17:46:15,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:46:15,311 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:46:15,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15 WrapperNode [2022-11-25 17:46:15,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:46:15,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:46:15,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:46:15,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:46:15,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:15,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:15,778 INFO L138 Inliner]: procedures = 341, calls = 1917, calls flagged for inlining = 158, calls inlined = 154, statements flattened = 4988 [2022-11-25 17:46:15,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:46:15,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:46:15,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:46:15,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:46:15,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:15,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:15,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:15,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:16,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:16,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:16,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:16,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:16,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:46:16,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:46:16,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:46:16,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:46:16,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (1/1) ... [2022-11-25 17:46:16,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:46:16,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:46:16,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:46:16,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:46:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure queue_iso [2022-11-25 17:46:16,338 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_iso [2022-11-25 17:46:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-25 17:46:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-25 17:46:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_channel [2022-11-25 17:46:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_channel [2022-11-25 17:46:16,339 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_register [2022-11-25 17:46:16,339 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_register [2022-11-25 17:46:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_establish_pp_connection [2022-11-25 17:46:16,340 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_establish_pp_connection [2022-11-25 17:46:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 17:46:16,340 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 17:46:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-25 17:46:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure node_req [2022-11-25 17:46:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure node_req [2022-11-25 17:46:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 17:46:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 17:46:16,341 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_lock [2022-11-25 17:46:16,341 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_lock [2022-11-25 17:46:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-25 17:46:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-25 17:46:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-25 17:46:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-25 17:46:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:46:16,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:46:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_read [2022-11-25 17:46:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_read [2022-11-25 17:46:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2022-11-25 17:46:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2022-11-25 17:46:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 17:46:16,343 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 17:46:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 17:46:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 17:46:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure pad_operands [2022-11-25 17:46:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pad_operands [2022-11-25 17:46:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_set_pids [2022-11-25 17:46:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_set_pids [2022-11-25 17:46:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_ca_io_poll [2022-11-25 17:46:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_ca_io_poll [2022-11-25 17:46:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-11-25 17:46:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-11-25 17:46:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_release [2022-11-25 17:46:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_release [2022-11-25 17:46:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure clear_operands [2022-11-25 17:46:16,346 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_operands [2022-11-25 17:46:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-25 17:46:16,346 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-25 17:46:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_open [2022-11-25 17:46:16,346 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_open [2022-11-25 17:46:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:46:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-25 17:46:16,347 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-25 17:46:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure avc_write [2022-11-25 17:46:16,347 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_write [2022-11-25 17:46:16,347 INFO L130 BoogieDeclarations]: Found specification of procedure get_opcr [2022-11-25 17:46:16,347 INFO L138 BoogieDeclarations]: Found implementation of procedure get_opcr [2022-11-25 17:46:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:46:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-25 17:46:16,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-25 17:46:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure collect_channels [2022-11-25 17:46:16,348 INFO L138 BoogieDeclarations]: Found implementation of procedure collect_channels [2022-11-25 17:46:16,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:46:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:46:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_context_destroy [2022-11-25 17:46:16,349 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_context_destroy [2022-11-25 17:46:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_unregister_rc [2022-11-25 17:46:16,349 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_unregister_rc [2022-11-25 17:46:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_status [2022-11-25 17:46:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_status [2022-11-25 17:46:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-25 17:46:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-25 17:46:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-25 17:46:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-25 17:46:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 17:46:16,351 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 17:46:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 17:46:16,351 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 17:46:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-11-25 17:46:16,351 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-11-25 17:46:16,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2022-11-25 17:46:16,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2022-11-25 17:46:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 17:46:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-25 17:46:16,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-25 17:46:16,352 INFO L130 BoogieDeclarations]: Found specification of procedure node_remove [2022-11-25 17:46:16,352 INFO L138 BoogieDeclarations]: Found implementation of procedure node_remove [2022-11-25 17:46:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:46:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_unregister [2022-11-25 17:46:16,353 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_unregister [2022-11-25 17:46:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure add_pid_filter [2022-11-25 17:46:16,353 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pid_filter [2022-11-25 17:46:16,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:46:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure is_register_rc [2022-11-25 17:46:16,354 INFO L138 BoogieDeclarations]: Found implementation of procedure is_register_rc [2022-11-25 17:46:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure dealloc_channel [2022-11-25 17:46:16,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dealloc_channel [2022-11-25 17:46:16,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 17:46:16,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 17:46:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 17:46:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 17:46:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-25 17:46:16,355 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-25 17:46:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:46:16,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2022-11-25 17:46:16,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2022-11-25 17:46:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure debug_fcp [2022-11-25 17:46:16,356 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_fcp [2022-11-25 17:46:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-11-25 17:46:16,356 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-11-25 17:46:16,356 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-25 17:46:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-25 17:46:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:46:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:46:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2022-11-25 17:46:16,357 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2022-11-25 17:46:16,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:46:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:46:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:46:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 17:46:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure set_opcr [2022-11-25 17:46:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure set_opcr [2022-11-25 17:46:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-25 17:46:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-25 17:46:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 17:46:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 17:46:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_buffer_destroy [2022-11-25 17:46:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_buffer_destroy [2022-11-25 17:46:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure node_probe [2022-11-25 17:46:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure node_probe [2022-11-25 17:46:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure get_ca_object_pos [2022-11-25 17:46:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ca_object_pos [2022-11-25 17:46:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure node_update [2022-11-25 17:46:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure node_update [2022-11-25 17:46:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure avc_register_remote_control [2022-11-25 17:46:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_register_remote_control [2022-11-25 17:46:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-11-25 17:46:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-11-25 17:46:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 17:46:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 17:46:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure device_of [2022-11-25 17:46:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure device_of [2022-11-25 17:46:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2022-11-25 17:46:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2022-11-25 17:46:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_remove_address_handler [2022-11-25 17:46:16,362 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_remove_address_handler [2022-11-25 17:46:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:46:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:46:16,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:46:17,309 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:46:17,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:46:35,247 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:46:35,266 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:46:35,266 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:46:35,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:46:35 BoogieIcfgContainer [2022-11-25 17:46:35,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:46:35,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:46:35,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:46:35,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:46:35,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:46:11" (1/3) ... [2022-11-25 17:46:35,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667a59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:46:35, skipping insertion in model container [2022-11-25 17:46:35,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:15" (2/3) ... [2022-11-25 17:46:35,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667a59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:46:35, skipping insertion in model container [2022-11-25 17:46:35,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:46:35" (3/3) ... [2022-11-25 17:46:35,280 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2022-11-25 17:46:35,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:46:35,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:46:35,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:46:35,399 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=PETRI_NET, 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;@68b5a0a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:46:35,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:46:35,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 1344 states, 1034 states have (on average 1.3926499032882012) internal successors, (1440), 1057 states have internal predecessors, (1440), 243 states have call successors, (243), 65 states have call predecessors, (243), 65 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) [2022-11-25 17:46:35,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:46:35,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:35,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:35,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:35,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:35,430 INFO L85 PathProgramCache]: Analyzing trace with hash -724562222, now seen corresponding path program 1 times [2022-11-25 17:46:35,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:35,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833026638] [2022-11-25 17:46:35,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:35,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:36,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:36,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833026638] [2022-11-25 17:46:36,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833026638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:36,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:36,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:36,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881688407] [2022-11-25 17:46:36,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:36,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:36,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:36,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:36,302 INFO L87 Difference]: Start difference. First operand has 1344 states, 1034 states have (on average 1.3926499032882012) internal successors, (1440), 1057 states have internal predecessors, (1440), 243 states have call successors, (243), 65 states have call predecessors, (243), 65 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:36,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:36,724 INFO L93 Difference]: Finished difference Result 3846 states and 5619 transitions. [2022-11-25 17:46:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:36,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 17:46:36,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:36,757 INFO L225 Difference]: With dead ends: 3846 [2022-11-25 17:46:36,757 INFO L226 Difference]: Without dead ends: 2495 [2022-11-25 17:46:36,771 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 17:46:36,774 INFO L413 NwaCegarLoop]: 2208 mSDtfsCounter, 1634 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 4110 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:36,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 4110 Invalid, 8 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:46:36,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2022-11-25 17:46:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2477. [2022-11-25 17:46:37,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 1918 states have (on average 1.3899895724713243) internal successors, (2666), 1953 states have internal predecessors, (2666), 430 states have call successors, (430), 129 states have call predecessors, (430), 128 states have return successors, (421), 420 states have call predecessors, (421), 421 states have call successors, (421) [2022-11-25 17:46:37,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3517 transitions. [2022-11-25 17:46:37,067 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3517 transitions. Word has length 17 [2022-11-25 17:46:37,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:37,067 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3517 transitions. [2022-11-25 17:46:37,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:37,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3517 transitions. [2022-11-25 17:46:37,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:46:37,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:37,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:37,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:46:37,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:37,080 INFO L85 PathProgramCache]: Analyzing trace with hash 99339879, now seen corresponding path program 1 times [2022-11-25 17:46:37,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:37,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743064768] [2022-11-25 17:46:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:37,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:37,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:37,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743064768] [2022-11-25 17:46:37,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743064768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:37,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:37,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:37,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725855265] [2022-11-25 17:46:37,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:37,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:37,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:37,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:37,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:37,417 INFO L87 Difference]: Start difference. First operand 2477 states and 3517 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:37,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:37,667 INFO L93 Difference]: Finished difference Result 2642 states and 3739 transitions. [2022-11-25 17:46:37,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:37,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 17:46:37,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:37,684 INFO L225 Difference]: With dead ends: 2642 [2022-11-25 17:46:37,684 INFO L226 Difference]: Without dead ends: 2638 [2022-11-25 17:46:37,692 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 17:46:37,694 INFO L413 NwaCegarLoop]: 1909 mSDtfsCounter, 1284 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:37,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 2620 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:46:37,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states. [2022-11-25 17:46:37,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 2636. [2022-11-25 17:46:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2062 states have (on average 1.3942774005819594) internal successors, (2875), 2097 states have internal predecessors, (2875), 432 states have call successors, (432), 142 states have call predecessors, (432), 141 states have return successors, (425), 424 states have call predecessors, (425), 425 states have call successors, (425) [2022-11-25 17:46:37,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3732 transitions. [2022-11-25 17:46:37,843 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3732 transitions. Word has length 19 [2022-11-25 17:46:37,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:37,844 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 3732 transitions. [2022-11-25 17:46:37,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3732 transitions. [2022-11-25 17:46:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 17:46:37,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:37,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:37,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:46:37,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:37,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:37,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1215914165, now seen corresponding path program 1 times [2022-11-25 17:46:37,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:37,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743761494] [2022-11-25 17:46:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:37,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:38,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743761494] [2022-11-25 17:46:38,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743761494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:38,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:38,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:38,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850059943] [2022-11-25 17:46:38,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:38,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:38,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:38,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:38,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:38,085 INFO L87 Difference]: Start difference. First operand 2636 states and 3732 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:38,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:38,246 INFO L93 Difference]: Finished difference Result 2638 states and 3733 transitions. [2022-11-25 17:46:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:38,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 17:46:38,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:38,264 INFO L225 Difference]: With dead ends: 2638 [2022-11-25 17:46:38,265 INFO L226 Difference]: Without dead ends: 2635 [2022-11-25 17:46:38,268 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 17:46:38,269 INFO L413 NwaCegarLoop]: 1898 mSDtfsCounter, 1882 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:38,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 1898 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:46:38,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2022-11-25 17:46:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2635. [2022-11-25 17:46:38,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 2062 states have (on average 1.393792434529583) internal successors, (2874), 2096 states have internal predecessors, (2874), 431 states have call successors, (431), 142 states have call predecessors, (431), 141 states have return successors, (425), 424 states have call predecessors, (425), 425 states have call successors, (425) [2022-11-25 17:46:38,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 3730 transitions. [2022-11-25 17:46:38,488 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 3730 transitions. Word has length 20 [2022-11-25 17:46:38,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:38,489 INFO L495 AbstractCegarLoop]: Abstraction has 2635 states and 3730 transitions. [2022-11-25 17:46:38,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:38,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 3730 transitions. [2022-11-25 17:46:38,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:46:38,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:38,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:46:38,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:46:38,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:38,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:38,492 INFO L85 PathProgramCache]: Analyzing trace with hash 960888298, now seen corresponding path program 1 times [2022-11-25 17:46:38,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:38,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796274729] [2022-11-25 17:46:38,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:38,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:38,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:38,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:38,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796274729] [2022-11-25 17:46:38,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796274729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:38,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:38,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:38,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026885261] [2022-11-25 17:46:38,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:38,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:38,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:38,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:38,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:38,705 INFO L87 Difference]: Start difference. First operand 2635 states and 3730 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:39,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:39,127 INFO L93 Difference]: Finished difference Result 7875 states and 11227 transitions. [2022-11-25 17:46:39,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:39,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-25 17:46:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:39,165 INFO L225 Difference]: With dead ends: 7875 [2022-11-25 17:46:39,165 INFO L226 Difference]: Without dead ends: 5243 [2022-11-25 17:46:39,180 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 17:46:39,181 INFO L413 NwaCegarLoop]: 2166 mSDtfsCounter, 1884 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1884 SdHoareTripleChecker+Valid, 4048 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:39,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1884 Valid, 4048 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:46:39,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2022-11-25 17:46:39,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 5231. [2022-11-25 17:46:39,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 4100 states have (on average 1.3941463414634145) internal successors, (5716), 4167 states have internal predecessors, (5716), 850 states have call successors, (850), 282 states have call predecessors, (850), 280 states have return successors, (882), 837 states have call predecessors, (882), 842 states have call successors, (882) [2022-11-25 17:46:39,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 7448 transitions. [2022-11-25 17:46:39,591 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 7448 transitions. Word has length 21 [2022-11-25 17:46:39,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:39,593 INFO L495 AbstractCegarLoop]: Abstraction has 5231 states and 7448 transitions. [2022-11-25 17:46:39,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:39,593 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 7448 transitions. [2022-11-25 17:46:39,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:46:39,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:39,595 INFO L195 NwaCegarLoop]: trace histogram [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 17:46:39,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:46:39,595 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:39,596 INFO L85 PathProgramCache]: Analyzing trace with hash -277707218, now seen corresponding path program 1 times [2022-11-25 17:46:39,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:39,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474514490] [2022-11-25 17:46:39,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:39,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:39,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:39,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:39,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474514490] [2022-11-25 17:46:39,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474514490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:39,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:39,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:39,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252905306] [2022-11-25 17:46:39,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:39,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:39,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:39,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:39,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:39,900 INFO L87 Difference]: Start difference. First operand 5231 states and 7448 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:40,202 INFO L93 Difference]: Finished difference Result 5233 states and 7449 transitions. [2022-11-25 17:46:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:40,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-25 17:46:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:40,231 INFO L225 Difference]: With dead ends: 5233 [2022-11-25 17:46:40,231 INFO L226 Difference]: Without dead ends: 5230 [2022-11-25 17:46:40,235 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 17:46:40,236 INFO L413 NwaCegarLoop]: 1896 mSDtfsCounter, 1878 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:40,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 1896 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:46:40,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5230 states. [2022-11-25 17:46:40,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5230 to 5230. [2022-11-25 17:46:40,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 4100 states have (on average 1.3939024390243901) internal successors, (5715), 4166 states have internal predecessors, (5715), 849 states have call successors, (849), 282 states have call predecessors, (849), 280 states have return successors, (882), 837 states have call predecessors, (882), 842 states have call successors, (882) [2022-11-25 17:46:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 7446 transitions. [2022-11-25 17:46:40,552 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 7446 transitions. Word has length 22 [2022-11-25 17:46:40,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:40,553 INFO L495 AbstractCegarLoop]: Abstraction has 5230 states and 7446 transitions. [2022-11-25 17:46:40,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 7446 transitions. [2022-11-25 17:46:40,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 17:46:40,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:40,554 INFO L195 NwaCegarLoop]: trace histogram [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 17:46:40,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:46:40,555 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:40,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:40,555 INFO L85 PathProgramCache]: Analyzing trace with hash -19457683, now seen corresponding path program 1 times [2022-11-25 17:46:40,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:40,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875515865] [2022-11-25 17:46:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:40,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:40,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:46:40,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:40,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875515865] [2022-11-25 17:46:40,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875515865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:40,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:40,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:46:40,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967566935] [2022-11-25 17:46:40,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:40,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:46:40,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:40,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:46:40,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:46:40,772 INFO L87 Difference]: Start difference. First operand 5230 states and 7446 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:41,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:46:41,051 INFO L93 Difference]: Finished difference Result 5232 states and 7447 transitions. [2022-11-25 17:46:41,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:41,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-25 17:46:41,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:46:41,084 INFO L225 Difference]: With dead ends: 5232 [2022-11-25 17:46:41,084 INFO L226 Difference]: Without dead ends: 5218 [2022-11-25 17:46:41,089 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 17:46:41,090 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 1875 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:46:41,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 1895 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:46:41,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5218 states. [2022-11-25 17:46:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5218 to 5218. [2022-11-25 17:46:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 4091 states have (on average 1.3935468100708872) internal successors, (5701), 4155 states have internal predecessors, (5701), 846 states have call successors, (846), 282 states have call predecessors, (846), 280 states have return successors, (880), 836 states have call predecessors, (880), 840 states have call successors, (880) [2022-11-25 17:46:41,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 7427 transitions. [2022-11-25 17:46:41,468 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 7427 transitions. Word has length 23 [2022-11-25 17:46:41,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:46:41,468 INFO L495 AbstractCegarLoop]: Abstraction has 5218 states and 7427 transitions. [2022-11-25 17:46:41,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:41,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 7427 transitions. [2022-11-25 17:46:41,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 17:46:41,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:46:41,473 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 17:46:41,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:46:41,473 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:46:41,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:41,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1710313985, now seen corresponding path program 1 times [2022-11-25 17:46:41,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:41,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553455595] [2022-11-25 17:46:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:41,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 17:46:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 17:46:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 17:46:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:46:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:46:42,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:46:42,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553455595] [2022-11-25 17:46:42,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553455595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:46:42,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:46:42,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:46:42,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220946607] [2022-11-25 17:46:42,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:46:42,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:46:42,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:46:42,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:46:42,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:46:42,136 INFO L87 Difference]: Start difference. First operand 5218 states and 7427 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:46:47,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:46:50,493 WARN L539 Checker$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 17:46:53,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:46:57,257 WARN L539 Checker$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 17:47:03,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:03,575 INFO L93 Difference]: Finished difference Result 10944 states and 15688 transitions. [2022-11-25 17:47:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:47:03,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-11-25 17:47:03,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:03,633 INFO L225 Difference]: With dead ends: 10944 [2022-11-25 17:47:03,641 INFO L226 Difference]: Without dead ends: 5729 [2022-11-25 17:47:03,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:47:03,667 INFO L413 NwaCegarLoop]: 1368 mSDtfsCounter, 2660 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 918 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 4136 SdHoareTripleChecker+Invalid, 2975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:03,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 4136 Invalid, 2975 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [918 Valid, 2053 Invalid, 4 Unknown, 0 Unchecked, 20.6s Time] [2022-11-25 17:47:03,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5729 states. [2022-11-25 17:47:04,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5729 to 5228. [2022-11-25 17:47:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5228 states, 4099 states have (on average 1.3922908026347889) internal successors, (5707), 4167 states have internal predecessors, (5707), 840 states have call successors, (840), 282 states have call predecessors, (840), 288 states have return successors, (886), 830 states have call predecessors, (886), 834 states have call successors, (886) [2022-11-25 17:47:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5228 states to 5228 states and 7433 transitions. [2022-11-25 17:47:04,158 INFO L78 Accepts]: Start accepts. Automaton has 5228 states and 7433 transitions. Word has length 48 [2022-11-25 17:47:04,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:04,160 INFO L495 AbstractCegarLoop]: Abstraction has 5228 states and 7433 transitions. [2022-11-25 17:47:04,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:47:04,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5228 states and 7433 transitions. [2022-11-25 17:47:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 17:47:04,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:04,169 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 17:47:04,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:47:04,170 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:47:04,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:04,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1936874909, now seen corresponding path program 1 times [2022-11-25 17:47:04,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:04,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415498229] [2022-11-25 17:47:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:04,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:47:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:04,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:47:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:04,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:47:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:47:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:47:05,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:05,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415498229] [2022-11-25 17:47:05,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415498229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:05,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:05,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:47:05,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830721857] [2022-11-25 17:47:05,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:05,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:47:05,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:47:05,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:47:05,052 INFO L87 Difference]: Start difference. First operand 5228 states and 7433 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:47:10,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:47:13,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:47:15,798 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 17:47:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:24,219 INFO L93 Difference]: Finished difference Result 11472 states and 16644 transitions. [2022-11-25 17:47:24,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:47:24,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 65 [2022-11-25 17:47:24,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:24,253 INFO L225 Difference]: With dead ends: 11472 [2022-11-25 17:47:24,254 INFO L226 Difference]: Without dead ends: 6247 [2022-11-25 17:47:24,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:47:24,277 INFO L413 NwaCegarLoop]: 1322 mSDtfsCounter, 3224 mSDsluCounter, 3950 mSDsCounter, 0 mSdLazyCounter, 2830 mSolverCounterSat, 1325 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3331 SdHoareTripleChecker+Valid, 5272 SdHoareTripleChecker+Invalid, 4157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1325 IncrementalHoareTripleChecker+Valid, 2830 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:24,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3331 Valid, 5272 Invalid, 4157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1325 Valid, 2830 Invalid, 2 Unknown, 0 Unchecked, 18.3s Time] [2022-11-25 17:47:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2022-11-25 17:47:24,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 4914. [2022-11-25 17:47:24,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4914 states, 3869 states have (on average 1.3939002326182477) internal successors, (5393), 3937 states have internal predecessors, (5393), 758 states have call successors, (758), 280 states have call predecessors, (758), 286 states have return successors, (804), 748 states have call predecessors, (804), 752 states have call successors, (804) [2022-11-25 17:47:24,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4914 states to 4914 states and 6955 transitions. [2022-11-25 17:47:24,707 INFO L78 Accepts]: Start accepts. Automaton has 4914 states and 6955 transitions. Word has length 65 [2022-11-25 17:47:24,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:24,708 INFO L495 AbstractCegarLoop]: Abstraction has 4914 states and 6955 transitions. [2022-11-25 17:47:24,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:47:24,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4914 states and 6955 transitions. [2022-11-25 17:47:24,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 17:47:24,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:24,715 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 17:47:24,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:47:24,715 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:47:24,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash -3295973, now seen corresponding path program 1 times [2022-11-25 17:47:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:24,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413329746] [2022-11-25 17:47:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:25,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:47:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:25,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:47:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:47:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:25,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:47:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:47:25,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:25,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413329746] [2022-11-25 17:47:25,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413329746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:25,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:25,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:47:25,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896823532] [2022-11-25 17:47:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:25,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:47:25,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:25,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:47:25,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:47:25,230 INFO L87 Difference]: Start difference. First operand 4914 states and 6955 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:47:29,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:47:32,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:47:35,261 WARN L539 Checker$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 17:47:42,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:47:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:42,827 INFO L93 Difference]: Finished difference Result 10716 states and 15584 transitions. [2022-11-25 17:47:42,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:47:42,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 65 [2022-11-25 17:47:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:42,861 INFO L225 Difference]: With dead ends: 10716 [2022-11-25 17:47:42,861 INFO L226 Difference]: Without dead ends: 5805 [2022-11-25 17:47:42,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:47:42,889 INFO L413 NwaCegarLoop]: 1124 mSDtfsCounter, 1600 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 891 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 3485 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:42,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 3485 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 2001 Invalid, 3 Unknown, 0 Unchecked, 16.9s Time] [2022-11-25 17:47:42,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5805 states. [2022-11-25 17:47:43,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5805 to 4918. [2022-11-25 17:47:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4918 states, 3873 states have (on average 1.3934934159566228) internal successors, (5397), 3941 states have internal predecessors, (5397), 758 states have call successors, (758), 280 states have call predecessors, (758), 286 states have return successors, (804), 748 states have call predecessors, (804), 752 states have call successors, (804) [2022-11-25 17:47:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4918 states to 4918 states and 6959 transitions. [2022-11-25 17:47:43,321 INFO L78 Accepts]: Start accepts. Automaton has 4918 states and 6959 transitions. Word has length 65 [2022-11-25 17:47:43,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:43,323 INFO L495 AbstractCegarLoop]: Abstraction has 4918 states and 6959 transitions. [2022-11-25 17:47:43,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 17:47:43,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4918 states and 6959 transitions. [2022-11-25 17:47:43,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 17:47:43,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:43,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:47:43,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:47:43,330 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:47:43,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1992643942, now seen corresponding path program 1 times [2022-11-25 17:47:43,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:43,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490348932] [2022-11-25 17:47:43,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:43,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:47:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:47:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:47:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 17:47:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:47:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:47:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:43,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:43,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490348932] [2022-11-25 17:47:43,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490348932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:43,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:43,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:47:43,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303501726] [2022-11-25 17:47:43,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:43,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:47:43,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:43,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:47:43,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:47:43,668 INFO L87 Difference]: Start difference. First operand 4918 states and 6959 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:47:48,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:47:52,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:47:55,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:55,035 INFO L93 Difference]: Finished difference Result 11496 states and 16361 transitions. [2022-11-25 17:47:55,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:47:55,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2022-11-25 17:47:55,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:47:55,066 INFO L225 Difference]: With dead ends: 11496 [2022-11-25 17:47:55,067 INFO L226 Difference]: Without dead ends: 6581 [2022-11-25 17:47:55,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:47:55,085 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 2418 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 651 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:47:55,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2554 Valid, 2802 Invalid, 2788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2136 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-11-25 17:47:55,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6581 states. [2022-11-25 17:47:55,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6581 to 6234. [2022-11-25 17:47:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 4961 states have (on average 1.4067728280588592) internal successors, (6979), 5045 states have internal predecessors, (6979), 902 states have call successors, (902), 356 states have call predecessors, (902), 370 states have return successors, (972), 904 states have call predecessors, (972), 896 states have call successors, (972) [2022-11-25 17:47:55,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 8853 transitions. [2022-11-25 17:47:55,688 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 8853 transitions. Word has length 76 [2022-11-25 17:47:55,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:47:55,689 INFO L495 AbstractCegarLoop]: Abstraction has 6234 states and 8853 transitions. [2022-11-25 17:47:55,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:47:55,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 8853 transitions. [2022-11-25 17:47:55,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 17:47:55,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:55,697 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 17:47:55,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:47:55,697 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:47:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1704704703, now seen corresponding path program 1 times [2022-11-25 17:47:55,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:55,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783068185] [2022-11-25 17:47:55,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:55,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:47:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:55,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:47:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:55,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:47:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:55,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:47:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:56,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:47:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:56,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 17:47:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:56,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:56,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783068185] [2022-11-25 17:47:56,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783068185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:56,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:56,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:47:56,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582691566] [2022-11-25 17:47:56,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:56,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:47:56,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:56,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:47:56,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:47:56,049 INFO L87 Difference]: Start difference. First operand 6234 states and 8853 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:48:01,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:10,275 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 17:48:12,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:12,347 INFO L93 Difference]: Finished difference Result 18074 states and 25795 transitions. [2022-11-25 17:48:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:48:12,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2022-11-25 17:48:12,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:12,402 INFO L225 Difference]: With dead ends: 18074 [2022-11-25 17:48:12,402 INFO L226 Difference]: Without dead ends: 11843 [2022-11-25 17:48:12,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:48:12,427 INFO L413 NwaCegarLoop]: 1725 mSDtfsCounter, 3695 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 2783 mSolverCounterSat, 1364 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3877 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 4149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 2783 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:12,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3877 Valid, 3958 Invalid, 4149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1364 Valid, 2783 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2022-11-25 17:48:12,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11843 states. [2022-11-25 17:48:13,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11843 to 11204. [2022-11-25 17:48:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11204 states, 8855 states have (on average 1.397967250141163) internal successors, (12379), 9003 states have internal predecessors, (12379), 1684 states have call successors, (1684), 634 states have call predecessors, (1684), 664 states have return successors, (1844), 1692 states have call predecessors, (1844), 1678 states have call successors, (1844) [2022-11-25 17:48:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11204 states to 11204 states and 15907 transitions. [2022-11-25 17:48:13,430 INFO L78 Accepts]: Start accepts. Automaton has 11204 states and 15907 transitions. Word has length 89 [2022-11-25 17:48:13,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:13,431 INFO L495 AbstractCegarLoop]: Abstraction has 11204 states and 15907 transitions. [2022-11-25 17:48:13,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:48:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 11204 states and 15907 transitions. [2022-11-25 17:48:13,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 17:48:13,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:13,436 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 17:48:13,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:48:13,437 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:13,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2071053789, now seen corresponding path program 1 times [2022-11-25 17:48:13,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:13,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671281144] [2022-11-25 17:48:13,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:13,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:13,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:48:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:48:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:13,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:48:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:13,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:48:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:48:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:14,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:48:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:48:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:14,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 17:48:14,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:14,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671281144] [2022-11-25 17:48:14,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671281144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:14,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:14,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:48:14,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881277556] [2022-11-25 17:48:14,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:14,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:48:14,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:14,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:48:14,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:48:14,061 INFO L87 Difference]: Start difference. First operand 11204 states and 15907 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:48:19,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:21,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:24,969 WARN L539 Checker$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 17:48:37,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:37,555 INFO L93 Difference]: Finished difference Result 12961 states and 18775 transitions. [2022-11-25 17:48:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:48:37,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 87 [2022-11-25 17:48:37,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:37,628 INFO L225 Difference]: With dead ends: 12961 [2022-11-25 17:48:37,628 INFO L226 Difference]: Without dead ends: 12958 [2022-11-25 17:48:37,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:48:37,636 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 1749 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 662 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:37,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 3556 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [662 Valid, 2578 Invalid, 3 Unknown, 0 Unchecked, 22.3s Time] [2022-11-25 17:48:37,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12958 states. [2022-11-25 17:48:38,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12958 to 11203. [2022-11-25 17:48:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11203 states, 8855 states have (on average 1.3968379446640315) internal successors, (12369), 9002 states have internal predecessors, (12369), 1683 states have call successors, (1683), 634 states have call predecessors, (1683), 664 states have return successors, (1844), 1692 states have call predecessors, (1844), 1678 states have call successors, (1844) [2022-11-25 17:48:38,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11203 states to 11203 states and 15896 transitions. [2022-11-25 17:48:38,614 INFO L78 Accepts]: Start accepts. Automaton has 11203 states and 15896 transitions. Word has length 87 [2022-11-25 17:48:38,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:38,614 INFO L495 AbstractCegarLoop]: Abstraction has 11203 states and 15896 transitions. [2022-11-25 17:48:38,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:48:38,615 INFO L276 IsEmpty]: Start isEmpty. Operand 11203 states and 15896 transitions. [2022-11-25 17:48:38,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 17:48:38,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:38,627 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:38,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:48:38,628 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:38,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:38,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2101024515, now seen corresponding path program 1 times [2022-11-25 17:48:38,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:38,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132052572] [2022-11-25 17:48:38,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:38,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:48:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:48:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:48:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:48:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:48:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:48:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 17:48:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:48:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 17:48:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 17:48:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 17:48:39,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:39,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132052572] [2022-11-25 17:48:39,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132052572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:39,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:48:39,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:48:39,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72057372] [2022-11-25 17:48:39,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:39,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:48:39,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:39,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:48:39,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:48:39,472 INFO L87 Difference]: Start difference. First operand 11203 states and 15896 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 17:48:44,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:47,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:48,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:51,568 WARN L539 Checker$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 17:49:00,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:49:00,758 INFO L93 Difference]: Finished difference Result 23517 states and 33669 transitions. [2022-11-25 17:49:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:49:00,759 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 120 [2022-11-25 17:49:00,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:49:00,819 INFO L225 Difference]: With dead ends: 23517 [2022-11-25 17:49:00,820 INFO L226 Difference]: Without dead ends: 12317 [2022-11-25 17:49:00,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:49:00,855 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 2243 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 827 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 3965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:49:00,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 3717 Invalid, 3965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [827 Valid, 3136 Invalid, 2 Unknown, 0 Unchecked, 20.0s Time] [2022-11-25 17:49:00,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12317 states. [2022-11-25 17:49:01,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12317 to 11299. [2022-11-25 17:49:01,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11299 states, 8935 states have (on average 1.395970900951315) internal successors, (12473), 9082 states have internal predecessors, (12473), 1699 states have call successors, (1699), 634 states have call predecessors, (1699), 664 states have return successors, (1868), 1708 states have call predecessors, (1868), 1694 states have call successors, (1868) [2022-11-25 17:49:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11299 states to 11299 states and 16040 transitions. [2022-11-25 17:49:01,728 INFO L78 Accepts]: Start accepts. Automaton has 11299 states and 16040 transitions. Word has length 120 [2022-11-25 17:49:01,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:49:01,729 INFO L495 AbstractCegarLoop]: Abstraction has 11299 states and 16040 transitions. [2022-11-25 17:49:01,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 17:49:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 11299 states and 16040 transitions. [2022-11-25 17:49:01,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 17:49:01,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:49:01,740 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:49:01,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:49:01,741 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:49:01,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:49:01,741 INFO L85 PathProgramCache]: Analyzing trace with hash -142958783, now seen corresponding path program 1 times [2022-11-25 17:49:01,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:49:01,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903087955] [2022-11-25 17:49:01,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:01,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:49:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:49:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:49:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 17:49:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:49:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 17:49:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 17:49:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 17:49:02,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:49:02,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903087955] [2022-11-25 17:49:02,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903087955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:49:02,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:49:02,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:49:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513625199] [2022-11-25 17:49:02,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:49:02,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:49:02,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:02,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:49:02,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:49:02,190 INFO L87 Difference]: Start difference. First operand 11299 states and 16040 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-25 17:49:06,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:09,198 WARN L539 Checker$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 17:49:11,865 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 17:49:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:49:17,899 INFO L93 Difference]: Finished difference Result 23475 states and 33567 transitions. [2022-11-25 17:49:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:49:17,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 120 [2022-11-25 17:49:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:49:17,952 INFO L225 Difference]: With dead ends: 23475 [2022-11-25 17:49:17,953 INFO L226 Difference]: Without dead ends: 12179 [2022-11-25 17:49:17,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:49:17,987 INFO L413 NwaCegarLoop]: 984 mSDtfsCounter, 1835 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 2495 mSolverCounterSat, 557 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 557 IncrementalHoareTripleChecker+Valid, 2495 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:49:17,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 3079 Invalid, 3055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [557 Valid, 2495 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2022-11-25 17:49:17,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12179 states. [2022-11-25 17:49:18,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 11307. [2022-11-25 17:49:18,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11307 states, 8943 states have (on average 1.3956166834395616) internal successors, (12481), 9090 states have internal predecessors, (12481), 1699 states have call successors, (1699), 634 states have call predecessors, (1699), 664 states have return successors, (1868), 1708 states have call predecessors, (1868), 1694 states have call successors, (1868) [2022-11-25 17:49:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11307 states to 11307 states and 16048 transitions. [2022-11-25 17:49:18,984 INFO L78 Accepts]: Start accepts. Automaton has 11307 states and 16048 transitions. Word has length 120 [2022-11-25 17:49:18,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:49:18,984 INFO L495 AbstractCegarLoop]: Abstraction has 11307 states and 16048 transitions. [2022-11-25 17:49:18,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-25 17:49:18,985 INFO L276 IsEmpty]: Start isEmpty. Operand 11307 states and 16048 transitions. [2022-11-25 17:49:18,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 17:49:18,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:49:18,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:49:18,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:49:18,997 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:49:18,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:49:18,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1874232396, now seen corresponding path program 1 times [2022-11-25 17:49:18,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:49:18,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618834596] [2022-11-25 17:49:18,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:18,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:49:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:49:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:49:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 17:49:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:49:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 17:49:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:19,549 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 17:49:19,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:49:19,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618834596] [2022-11-25 17:49:19,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618834596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:49:19,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:49:19,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:49:19,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891058830] [2022-11-25 17:49:19,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:49:19,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:49:19,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:19,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:49:19,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:49:19,552 INFO L87 Difference]: Start difference. First operand 11307 states and 16048 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-25 17:49:23,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:25,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:27,517 WARN L539 Checker$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 17:49:29,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:31,111 WARN L539 Checker$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 17:49:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:49:36,541 INFO L93 Difference]: Finished difference Result 23747 states and 34019 transitions. [2022-11-25 17:49:36,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:49:36,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 122 [2022-11-25 17:49:36,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:49:36,592 INFO L225 Difference]: With dead ends: 23747 [2022-11-25 17:49:36,593 INFO L226 Difference]: Without dead ends: 12443 [2022-11-25 17:49:36,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:49:36,626 INFO L413 NwaCegarLoop]: 1028 mSDtfsCounter, 2197 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 865 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:49:36,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 2959 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 2208 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2022-11-25 17:49:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12443 states. [2022-11-25 17:49:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12443 to 11360. [2022-11-25 17:49:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11360 states, 8996 states have (on average 1.3923966207203202) internal successors, (12526), 9143 states have internal predecessors, (12526), 1699 states have call successors, (1699), 634 states have call predecessors, (1699), 664 states have return successors, (1868), 1708 states have call predecessors, (1868), 1694 states have call successors, (1868) [2022-11-25 17:49:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11360 states to 11360 states and 16093 transitions. [2022-11-25 17:49:37,667 INFO L78 Accepts]: Start accepts. Automaton has 11360 states and 16093 transitions. Word has length 122 [2022-11-25 17:49:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:49:37,668 INFO L495 AbstractCegarLoop]: Abstraction has 11360 states and 16093 transitions. [2022-11-25 17:49:37,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-25 17:49:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand 11360 states and 16093 transitions. [2022-11-25 17:49:37,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 17:49:37,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:49:37,679 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:49:37,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:49:37,680 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:49:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:49:37,680 INFO L85 PathProgramCache]: Analyzing trace with hash 253687724, now seen corresponding path program 1 times [2022-11-25 17:49:37,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:49:37,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612599944] [2022-11-25 17:49:37,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:37,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:49:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:49:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:49:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 17:49:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:49:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 17:49:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:38,196 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 17:49:38,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:49:38,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612599944] [2022-11-25 17:49:38,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612599944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:49:38,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:49:38,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:49:38,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022534153] [2022-11-25 17:49:38,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:49:38,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:49:38,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:38,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:49:38,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:49:38,201 INFO L87 Difference]: Start difference. First operand 11360 states and 16093 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 17:49:43,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:46,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:48,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:49,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:53,958 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 17:49:58,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:49:58,417 INFO L93 Difference]: Finished difference Result 23568 states and 33537 transitions. [2022-11-25 17:49:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:49:58,417 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 122 [2022-11-25 17:49:58,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:49:58,471 INFO L225 Difference]: With dead ends: 23568 [2022-11-25 17:49:58,471 INFO L226 Difference]: Without dead ends: 12199 [2022-11-25 17:49:58,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:49:58,513 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 1803 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 2918 mSolverCounterSat, 585 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 3775 SdHoareTripleChecker+Invalid, 3506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 2918 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:49:58,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 3775 Invalid, 3506 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [585 Valid, 2918 Invalid, 3 Unknown, 0 Unchecked, 18.9s Time] [2022-11-25 17:49:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12199 states. [2022-11-25 17:49:59,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12199 to 11362. [2022-11-25 17:49:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11362 states, 8998 states have (on average 1.3916425872416092) internal successors, (12522), 9145 states have internal predecessors, (12522), 1699 states have call successors, (1699), 634 states have call predecessors, (1699), 664 states have return successors, (1868), 1708 states have call predecessors, (1868), 1694 states have call successors, (1868) [2022-11-25 17:49:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11362 states to 11362 states and 16089 transitions. [2022-11-25 17:49:59,384 INFO L78 Accepts]: Start accepts. Automaton has 11362 states and 16089 transitions. Word has length 122 [2022-11-25 17:49:59,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:49:59,384 INFO L495 AbstractCegarLoop]: Abstraction has 11362 states and 16089 transitions. [2022-11-25 17:49:59,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 17:49:59,384 INFO L276 IsEmpty]: Start isEmpty. Operand 11362 states and 16089 transitions. [2022-11-25 17:49:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 17:49:59,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:49:59,394 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:49:59,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:49:59,395 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:49:59,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:49:59,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2063997828, now seen corresponding path program 1 times [2022-11-25 17:49:59,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:49:59,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230186042] [2022-11-25 17:49:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:59,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:49:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:49:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 17:49:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:49:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 17:49:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:49:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:49:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 17:49:59,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:49:59,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230186042] [2022-11-25 17:49:59,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230186042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:49:59,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:49:59,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:49:59,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390786985] [2022-11-25 17:49:59,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:49:59,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:49:59,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:59,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:49:59,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:49:59,970 INFO L87 Difference]: Start difference. First operand 11362 states and 16089 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 17:50:05,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:14,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:29,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:33,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:50:33,384 INFO L93 Difference]: Finished difference Result 29044 states and 41359 transitions. [2022-11-25 17:50:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:50:33,385 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 125 [2022-11-25 17:50:33,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:50:33,452 INFO L225 Difference]: With dead ends: 29044 [2022-11-25 17:50:33,452 INFO L226 Difference]: Without dead ends: 17685 [2022-11-25 17:50:33,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:50:33,480 INFO L413 NwaCegarLoop]: 1902 mSDtfsCounter, 2984 mSDsluCounter, 7084 mSDsCounter, 0 mSdLazyCounter, 7475 mSolverCounterSat, 950 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3189 SdHoareTripleChecker+Valid, 8986 SdHoareTripleChecker+Invalid, 8427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 950 IncrementalHoareTripleChecker+Valid, 7475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:50:33,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3189 Valid, 8986 Invalid, 8427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [950 Valid, 7475 Invalid, 2 Unknown, 0 Unchecked, 31.4s Time] [2022-11-25 17:50:33,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17685 states. [2022-11-25 17:50:34,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17685 to 11378. [2022-11-25 17:50:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11378 states, 9010 states have (on average 1.3911209766925638) internal successors, (12534), 9157 states have internal predecessors, (12534), 1699 states have call successors, (1699), 634 states have call predecessors, (1699), 668 states have return successors, (1876), 1712 states have call predecessors, (1876), 1694 states have call successors, (1876) [2022-11-25 17:50:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11378 states to 11378 states and 16109 transitions. [2022-11-25 17:50:34,771 INFO L78 Accepts]: Start accepts. Automaton has 11378 states and 16109 transitions. Word has length 125 [2022-11-25 17:50:34,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:50:34,772 INFO L495 AbstractCegarLoop]: Abstraction has 11378 states and 16109 transitions. [2022-11-25 17:50:34,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 17:50:34,773 INFO L276 IsEmpty]: Start isEmpty. Operand 11378 states and 16109 transitions. [2022-11-25 17:50:34,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-25 17:50:34,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:50:34,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-25 17:50:34,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 17:50:34,785 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:50:34,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:50:34,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1215307511, now seen corresponding path program 1 times [2022-11-25 17:50:34,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:50:34,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133850255] [2022-11-25 17:50:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:50:34,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:50:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:50:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:50:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:50:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:50:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 17:50:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 17:50:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:50:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 17:50:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-25 17:50:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 17:50:35,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:50:35,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133850255] [2022-11-25 17:50:35,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133850255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:50:35,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:50:35,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:50:35,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071934911] [2022-11-25 17:50:35,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:50:35,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:50:35,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:50:35,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:50:35,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:50:35,752 INFO L87 Difference]: Start difference. First operand 11378 states and 16109 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 17:50:40,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:44,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:47,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:48,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:50,863 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 17:50:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:50:57,166 INFO L93 Difference]: Finished difference Result 24205 states and 34775 transitions. [2022-11-25 17:50:57,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:50:57,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 171 [2022-11-25 17:50:57,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:50:57,212 INFO L225 Difference]: With dead ends: 24205 [2022-11-25 17:50:57,213 INFO L226 Difference]: Without dead ends: 12830 [2022-11-25 17:50:57,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:50:57,240 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 2228 mSDsluCounter, 3370 mSDsCounter, 0 mSdLazyCounter, 3401 mSolverCounterSat, 877 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 4281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 3401 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:50:57,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 4380 Invalid, 4281 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [877 Valid, 3401 Invalid, 3 Unknown, 0 Unchecked, 20.1s Time] [2022-11-25 17:50:57,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12830 states. [2022-11-25 17:50:58,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12830 to 11394. [2022-11-25 17:50:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11394 states, 9026 states have (on average 1.3904276534456015) internal successors, (12550), 9173 states have internal predecessors, (12550), 1699 states have call successors, (1699), 634 states have call predecessors, (1699), 668 states have return successors, (1876), 1712 states have call predecessors, (1876), 1694 states have call successors, (1876) [2022-11-25 17:50:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11394 states to 11394 states and 16125 transitions. [2022-11-25 17:50:58,180 INFO L78 Accepts]: Start accepts. Automaton has 11394 states and 16125 transitions. Word has length 171 [2022-11-25 17:50:58,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:50:58,181 INFO L495 AbstractCegarLoop]: Abstraction has 11394 states and 16125 transitions. [2022-11-25 17:50:58,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 17:50:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 11394 states and 16125 transitions. [2022-11-25 17:50:58,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-25 17:50:58,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:50:58,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-25 17:50:58,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 17:50:58,195 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:50:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:50:58,195 INFO L85 PathProgramCache]: Analyzing trace with hash 468345687, now seen corresponding path program 1 times [2022-11-25 17:50:58,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:50:58,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830986616] [2022-11-25 17:50:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:50:58,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:50:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:58,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:50:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:50:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:50:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:50:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:50:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:50:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:50:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 17:50:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 17:50:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 17:50:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:59,261 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 17:50:59,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:50:59,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830986616] [2022-11-25 17:50:59,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830986616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:50:59,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:50:59,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 17:50:59,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893362851] [2022-11-25 17:50:59,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:50:59,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:50:59,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:50:59,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:50:59,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:50:59,269 INFO L87 Difference]: Start difference. First operand 11394 states and 16125 transitions. Second operand has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 17:51:05,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:17,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:20,066 WARN L539 Checker$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 17:51:21,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:36,882 WARN L539 Checker$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 17:51:39,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:41,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:42,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:44,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:46,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:48,578 WARN L539 Checker$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 17:51:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:51:52,398 INFO L93 Difference]: Finished difference Result 29224 states and 41849 transitions. [2022-11-25 17:51:52,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 17:51:52,398 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 174 [2022-11-25 17:51:52,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:51:52,457 INFO L225 Difference]: With dead ends: 29224 [2022-11-25 17:51:52,457 INFO L226 Difference]: Without dead ends: 17833 [2022-11-25 17:51:52,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2022-11-25 17:51:52,482 INFO L413 NwaCegarLoop]: 1943 mSDtfsCounter, 3323 mSDsluCounter, 10848 mSDsCounter, 0 mSdLazyCounter, 10719 mSolverCounterSat, 1008 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 12791 SdHoareTripleChecker+Invalid, 11733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1008 IncrementalHoareTripleChecker+Valid, 10719 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:51:52,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3527 Valid, 12791 Invalid, 11733 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1008 Valid, 10719 Invalid, 6 Unknown, 0 Unchecked, 51.0s Time] [2022-11-25 17:51:52,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17833 states. [2022-11-25 17:51:53,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17833 to 16510. [2022-11-25 17:51:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16510 states, 13038 states have (on average 1.385948765148029) internal successors, (18070), 13257 states have internal predecessors, (18070), 2505 states have call successors, (2505), 912 states have call predecessors, (2505), 966 states have return successors, (2784), 2520 states have call predecessors, (2784), 2500 states have call successors, (2784) [2022-11-25 17:51:53,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16510 states to 16510 states and 23359 transitions. [2022-11-25 17:51:53,635 INFO L78 Accepts]: Start accepts. Automaton has 16510 states and 23359 transitions. Word has length 174 [2022-11-25 17:51:53,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:51:53,635 INFO L495 AbstractCegarLoop]: Abstraction has 16510 states and 23359 transitions. [2022-11-25 17:51:53,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 17:51:53,636 INFO L276 IsEmpty]: Start isEmpty. Operand 16510 states and 23359 transitions. [2022-11-25 17:51:53,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-25 17:51:53,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:51:53,647 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-25 17:51:53,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 17:51:53,647 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:51:53,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:51:53,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1519774689, now seen corresponding path program 1 times [2022-11-25 17:51:53,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:51:53,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917896081] [2022-11-25 17:51:53,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:51:53,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:51:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:51:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:51:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:51:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:51:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:51:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:51:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:51:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:51:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:51:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:51:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 17:51:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 17:51:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:51:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 17:51:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-25 17:51:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-25 17:51:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-25 17:51:54,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:51:54,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917896081] [2022-11-25 17:51:54,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917896081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:51:54,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:51:54,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 17:51:54,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857395885] [2022-11-25 17:51:54,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:51:54,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:51:54,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:51:54,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:51:54,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:51:54,876 INFO L87 Difference]: Start difference. First operand 16510 states and 23359 transitions. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 7 states have internal predecessors, (127), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 17:52:01,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:13,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:15,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:16,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:19,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:25,061 WARN L539 Checker$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 17:52:39,072 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 17:52:43,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:52:43,318 INFO L93 Difference]: Finished difference Result 39946 states and 57175 transitions. [2022-11-25 17:52:43,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 17:52:43,319 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 7 states have internal predecessors, (127), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 184 [2022-11-25 17:52:43,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:52:43,398 INFO L225 Difference]: With dead ends: 39946 [2022-11-25 17:52:43,398 INFO L226 Difference]: Without dead ends: 23439 [2022-11-25 17:52:43,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 17:52:43,440 INFO L413 NwaCegarLoop]: 1943 mSDtfsCounter, 3605 mSDsluCounter, 12907 mSDsCounter, 0 mSdLazyCounter, 12143 mSolverCounterSat, 1484 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3809 SdHoareTripleChecker+Valid, 14850 SdHoareTripleChecker+Invalid, 13631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1484 IncrementalHoareTripleChecker+Valid, 12143 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:52:43,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3809 Valid, 14850 Invalid, 13631 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1484 Valid, 12143 Invalid, 4 Unknown, 0 Unchecked, 45.3s Time] [2022-11-25 17:52:43,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23439 states. [2022-11-25 17:52:44,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23439 to 16590. [2022-11-25 17:52:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16590 states, 13102 states have (on average 1.3840635017554572) internal successors, (18134), 13325 states have internal predecessors, (18134), 2513 states have call successors, (2513), 912 states have call predecessors, (2513), 974 states have return successors, (2808), 2532 states have call predecessors, (2808), 2508 states have call successors, (2808) [2022-11-25 17:52:44,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16590 states to 16590 states and 23455 transitions. [2022-11-25 17:52:44,825 INFO L78 Accepts]: Start accepts. Automaton has 16590 states and 23455 transitions. Word has length 184 [2022-11-25 17:52:44,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:52:44,826 INFO L495 AbstractCegarLoop]: Abstraction has 16590 states and 23455 transitions. [2022-11-25 17:52:44,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 7 states have internal predecessors, (127), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 17:52:44,826 INFO L276 IsEmpty]: Start isEmpty. Operand 16590 states and 23455 transitions. [2022-11-25 17:52:44,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 17:52:44,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:52:44,835 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-25 17:52:44,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 17:52:44,835 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:52:44,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:44,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1343501434, now seen corresponding path program 1 times [2022-11-25 17:52:44,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:52:44,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184509359] [2022-11-25 17:52:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:44,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:52:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:52:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:52:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:52:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:52:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:52:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:52:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:52:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:52:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:52:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:52:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 17:52:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 17:52:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:52:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 17:52:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:52:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-25 17:52:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-25 17:52:45,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:52:45,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184509359] [2022-11-25 17:52:45,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184509359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:52:45,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:52:45,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:52:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071311505] [2022-11-25 17:52:45,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:52:45,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:52:45,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:52:45,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:52:45,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:52:45,549 INFO L87 Difference]: Start difference. First operand 16590 states and 23455 transitions. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 17:52:50,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:55,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:58,072 WARN L539 Checker$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 17:53:03,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:53:03,759 INFO L93 Difference]: Finished difference Result 35107 states and 50267 transitions. [2022-11-25 17:53:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:53:03,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 186 [2022-11-25 17:53:03,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:53:03,826 INFO L225 Difference]: With dead ends: 35107 [2022-11-25 17:53:03,826 INFO L226 Difference]: Without dead ends: 18520 [2022-11-25 17:53:03,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:53:03,859 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 2249 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 2970 mSolverCounterSat, 715 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2380 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 3687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 715 IncrementalHoareTripleChecker+Valid, 2970 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:53:03,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2380 Valid, 3886 Invalid, 3687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [715 Valid, 2970 Invalid, 2 Unknown, 0 Unchecked, 16.1s Time] [2022-11-25 17:53:03,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18520 states. [2022-11-25 17:53:05,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18520 to 16614. [2022-11-25 17:53:05,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16614 states, 13126 states have (on average 1.383361267712936) internal successors, (18158), 13349 states have internal predecessors, (18158), 2513 states have call successors, (2513), 912 states have call predecessors, (2513), 974 states have return successors, (2808), 2532 states have call predecessors, (2808), 2508 states have call successors, (2808) [2022-11-25 17:53:05,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16614 states to 16614 states and 23479 transitions. [2022-11-25 17:53:05,215 INFO L78 Accepts]: Start accepts. Automaton has 16614 states and 23479 transitions. Word has length 186 [2022-11-25 17:53:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:53:05,216 INFO L495 AbstractCegarLoop]: Abstraction has 16614 states and 23479 transitions. [2022-11-25 17:53:05,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 17:53:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 16614 states and 23479 transitions. [2022-11-25 17:53:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-25 17:53:05,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:05,224 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-25 17:53:05,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 17:53:05,225 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:05,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:05,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1365899688, now seen corresponding path program 1 times [2022-11-25 17:53:05,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:53:05,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502023736] [2022-11-25 17:53:05,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:05,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:53:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:05,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:53:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:53:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:05,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:53:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:05,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:53:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:53:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:53:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:53:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 17:53:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:53:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 17:53:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 17:53:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 17:53:06,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:53:06,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502023736] [2022-11-25 17:53:06,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502023736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:53:06,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:53:06,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 17:53:06,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677691223] [2022-11-25 17:53:06,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:53:06,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:53:06,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:53:06,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:53:06,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:53:06,218 INFO L87 Difference]: Start difference. First operand 16614 states and 23479 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-25 17:53:12,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:16,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:18,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:20,641 WARN L539 Checker$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 17:53:22,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:24,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:26,968 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 17:53:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:53:34,888 INFO L93 Difference]: Finished difference Result 18945 states and 26917 transitions. [2022-11-25 17:53:34,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:53:34,891 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 194 [2022-11-25 17:53:34,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:53:34,942 INFO L225 Difference]: With dead ends: 18945 [2022-11-25 17:53:34,942 INFO L226 Difference]: Without dead ends: 17519 [2022-11-25 17:53:34,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:53:34,953 INFO L413 NwaCegarLoop]: 984 mSDtfsCounter, 2087 mSDsluCounter, 5180 mSDsCounter, 0 mSdLazyCounter, 4767 mSolverCounterSat, 761 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 6164 SdHoareTripleChecker+Invalid, 5533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 4767 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:53:34,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2207 Valid, 6164 Invalid, 5533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [761 Valid, 4767 Invalid, 5 Unknown, 0 Unchecked, 26.9s Time] [2022-11-25 17:53:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17519 states. [2022-11-25 17:53:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17519 to 16237. [2022-11-25 17:53:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16237 states, 12834 states have (on average 1.3841358890447248) internal successors, (17764), 13046 states have internal predecessors, (17764), 2434 states have call successors, (2434), 906 states have call predecessors, (2434), 968 states have return successors, (2730), 2458 states have call predecessors, (2730), 2430 states have call successors, (2730) [2022-11-25 17:53:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16237 states to 16237 states and 22928 transitions. [2022-11-25 17:53:36,168 INFO L78 Accepts]: Start accepts. Automaton has 16237 states and 22928 transitions. Word has length 194 [2022-11-25 17:53:36,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:53:36,168 INFO L495 AbstractCegarLoop]: Abstraction has 16237 states and 22928 transitions. [2022-11-25 17:53:36,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-25 17:53:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 16237 states and 22928 transitions. [2022-11-25 17:53:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-25 17:53:36,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:36,178 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-25 17:53:36,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 17:53:36,179 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:36,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash 121135207, now seen corresponding path program 1 times [2022-11-25 17:53:36,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:53:36,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684556765] [2022-11-25 17:53:36,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:36,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:53:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:53:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:53:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:53:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:53:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:53:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:53:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:53:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 17:53:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:53:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 17:53:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 17:53:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 17:53:36,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:53:36,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684556765] [2022-11-25 17:53:36,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684556765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:53:36,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:53:36,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:53:36,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42482209] [2022-11-25 17:53:36,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:53:36,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:53:36,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:53:36,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:53:36,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:53:36,889 INFO L87 Difference]: Start difference. First operand 16237 states and 22928 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-25 17:53:41,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:44,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:47,470 WARN L539 Checker$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 17:53:55,781 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 17:53:59,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:53:59,377 INFO L93 Difference]: Finished difference Result 33749 states and 47821 transitions. [2022-11-25 17:53:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:53:59,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 194 [2022-11-25 17:53:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:53:59,431 INFO L225 Difference]: With dead ends: 33749 [2022-11-25 17:53:59,431 INFO L226 Difference]: Without dead ends: 17515 [2022-11-25 17:53:59,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:53:59,461 INFO L413 NwaCegarLoop]: 1855 mSDtfsCounter, 4135 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 3397 mSolverCounterSat, 1768 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4321 SdHoareTripleChecker+Valid, 4418 SdHoareTripleChecker+Invalid, 5169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1768 IncrementalHoareTripleChecker+Valid, 3397 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:53:59,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4321 Valid, 4418 Invalid, 5169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1768 Valid, 3397 Invalid, 4 Unknown, 0 Unchecked, 20.2s Time] [2022-11-25 17:53:59,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17515 states. [2022-11-25 17:54:00,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17515 to 16037. [2022-11-25 17:54:00,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16037 states, 12709 states have (on average 1.3853961759383113) internal successors, (17607), 12908 states have internal predecessors, (17607), 2372 states have call successors, (2372), 902 states have call predecessors, (2372), 955 states have return successors, (2527), 2406 states have call predecessors, (2527), 2366 states have call successors, (2527) [2022-11-25 17:54:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16037 states to 16037 states and 22506 transitions. [2022-11-25 17:54:00,610 INFO L78 Accepts]: Start accepts. Automaton has 16037 states and 22506 transitions. Word has length 194 [2022-11-25 17:54:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:00,611 INFO L495 AbstractCegarLoop]: Abstraction has 16037 states and 22506 transitions. [2022-11-25 17:54:00,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-25 17:54:00,611 INFO L276 IsEmpty]: Start isEmpty. Operand 16037 states and 22506 transitions. [2022-11-25 17:54:00,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-25 17:54:00,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:00,619 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-25 17:54:00,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 17:54:00,619 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:54:00,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:00,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1920876383, now seen corresponding path program 1 times [2022-11-25 17:54:00,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:00,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693617510] [2022-11-25 17:54:00,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:00,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:54:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:54:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:54:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:54:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:54:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:54:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:54:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 17:54:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:54:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 17:54:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-25 17:54:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-25 17:54:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 17:54:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-25 17:54:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 17:54:01,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:01,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693617510] [2022-11-25 17:54:01,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693617510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:01,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:01,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:54:01,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854436029] [2022-11-25 17:54:01,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:01,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:54:01,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:01,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:54:01,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:54:01,500 INFO L87 Difference]: Start difference. First operand 16037 states and 22506 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:54:06,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:54:10,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:54:13,438 WARN L539 Checker$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 17:54:21,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:21,141 INFO L93 Difference]: Finished difference Result 34587 states and 49016 transitions. [2022-11-25 17:54:21,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:54:21,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 199 [2022-11-25 17:54:21,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:21,207 INFO L225 Difference]: With dead ends: 34587 [2022-11-25 17:54:21,207 INFO L226 Difference]: Without dead ends: 18553 [2022-11-25 17:54:21,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:54:21,234 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 2276 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 3113 mSolverCounterSat, 979 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 4094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 979 IncrementalHoareTripleChecker+Valid, 3113 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:21,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 3652 Invalid, 4094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [979 Valid, 3113 Invalid, 2 Unknown, 0 Unchecked, 17.6s Time] [2022-11-25 17:54:21,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18553 states. [2022-11-25 17:54:22,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18553 to 16049. [2022-11-25 17:54:22,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16049 states, 12721 states have (on average 1.385032623221445) internal successors, (17619), 12920 states have internal predecessors, (17619), 2372 states have call successors, (2372), 902 states have call predecessors, (2372), 955 states have return successors, (2527), 2406 states have call predecessors, (2527), 2366 states have call successors, (2527) [2022-11-25 17:54:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16049 states to 16049 states and 22518 transitions. [2022-11-25 17:54:22,427 INFO L78 Accepts]: Start accepts. Automaton has 16049 states and 22518 transitions. Word has length 199 [2022-11-25 17:54:22,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:22,428 INFO L495 AbstractCegarLoop]: Abstraction has 16049 states and 22518 transitions. [2022-11-25 17:54:22,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (23), 8 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:54:22,428 INFO L276 IsEmpty]: Start isEmpty. Operand 16049 states and 22518 transitions. [2022-11-25 17:54:22,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-25 17:54:22,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:22,437 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2022-11-25 17:54:22,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 17:54:22,437 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:54:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2000059480, now seen corresponding path program 1 times [2022-11-25 17:54:22,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:22,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644684010] [2022-11-25 17:54:22,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:22,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:54:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:54:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:54:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:54:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:54:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:54:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:54:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-25 17:54:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:54:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 17:54:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-25 17:54:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-25 17:54:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 17:54:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:54:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-25 17:54:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 17:54:23,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:23,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644684010] [2022-11-25 17:54:23,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644684010] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:54:23,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231115939] [2022-11-25 17:54:23,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:23,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:23,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:23,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:54:23,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:54:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:24,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 2854 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:54:24,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:54:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-25 17:54:24,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:54:24,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231115939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:24,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:54:24,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-25 17:54:24,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794328381] [2022-11-25 17:54:24,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:24,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:54:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:24,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:54:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:54:24,871 INFO L87 Difference]: Start difference. First operand 16049 states and 22518 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 17:54:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:26,278 INFO L93 Difference]: Finished difference Result 16921 states and 23647 transitions. [2022-11-25 17:54:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:54:26,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 207 [2022-11-25 17:54:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:26,323 INFO L225 Difference]: With dead ends: 16921 [2022-11-25 17:54:26,323 INFO L226 Difference]: Without dead ends: 15822 [2022-11-25 17:54:26,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:54:26,331 INFO L413 NwaCegarLoop]: 1641 mSDtfsCounter, 9 mSDsluCounter, 6551 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8192 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:26,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 8192 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:54:26,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15822 states. [2022-11-25 17:54:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15822 to 15798. [2022-11-25 17:54:27,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15798 states, 12562 states have (on average 1.386562649259672) internal successors, (17418), 12749 states have internal predecessors, (17418), 2304 states have call successors, (2304), 877 states have call predecessors, (2304), 931 states have return successors, (2461), 2345 states have call predecessors, (2461), 2300 states have call successors, (2461) [2022-11-25 17:54:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15798 states to 15798 states and 22183 transitions. [2022-11-25 17:54:27,435 INFO L78 Accepts]: Start accepts. Automaton has 15798 states and 22183 transitions. Word has length 207 [2022-11-25 17:54:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:27,436 INFO L495 AbstractCegarLoop]: Abstraction has 15798 states and 22183 transitions. [2022-11-25 17:54:27,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 17:54:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 15798 states and 22183 transitions. [2022-11-25 17:54:27,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-11-25 17:54:27,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:27,451 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:54:27,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:54:27,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb252be1-93c4-4bab-8de7-88e4d6f57dff/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:27,652 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:54:27,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash 734011958, now seen corresponding path program 1 times [2022-11-25 17:54:27,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:27,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76186185] [2022-11-25 17:54:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:27,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:54:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:54:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:54:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:54:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:54:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:54:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:54:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:54:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:54:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:54:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:54:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:54:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:54:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 17:54:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 17:54:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:54:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 17:54:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:54:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:54:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:28,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:54:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 17:54:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 17:54:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:54:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:54:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-25 17:54:29,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:29,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76186185] [2022-11-25 17:54:29,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76186185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:29,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:29,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 17:54:29,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585931080] [2022-11-25 17:54:29,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:29,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:54:29,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:29,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:54:29,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:54:29,048 INFO L87 Difference]: Start difference. First operand 15798 states and 22183 transitions. Second operand has 11 states, 11 states have (on average 14.909090909090908) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 17:54:35,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:54:40,888 WARN L539 Checker$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 17:54:42,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:54:46,972 WARN L539 Checker$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 17:54:50,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:54:52,172 WARN L539 Checker$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 17:55:00,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:00,760 INFO L93 Difference]: Finished difference Result 24679 states and 34905 transitions. [2022-11-25 17:55:00,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:55:00,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.909090909090908) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 256 [2022-11-25 17:55:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:00,819 INFO L225 Difference]: With dead ends: 24679 [2022-11-25 17:55:00,819 INFO L226 Difference]: Without dead ends: 17078 [2022-11-25 17:55:00,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:55:00,840 INFO L413 NwaCegarLoop]: 986 mSDtfsCounter, 2084 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 5176 mSolverCounterSat, 752 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2202 SdHoareTripleChecker+Valid, 6529 SdHoareTripleChecker+Invalid, 5933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 5176 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:00,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2202 Valid, 6529 Invalid, 5933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [752 Valid, 5176 Invalid, 5 Unknown, 0 Unchecked, 29.9s Time] [2022-11-25 17:55:00,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17078 states. [2022-11-25 17:55:02,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17078 to 15792. [2022-11-25 17:55:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15792 states, 12556 states have (on average 1.3862695125836253) internal successors, (17406), 12743 states have internal predecessors, (17406), 2304 states have call successors, (2304), 877 states have call predecessors, (2304), 931 states have return successors, (2461), 2345 states have call predecessors, (2461), 2300 states have call successors, (2461) [2022-11-25 17:55:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15792 states to 15792 states and 22171 transitions. [2022-11-25 17:55:02,094 INFO L78 Accepts]: Start accepts. Automaton has 15792 states and 22171 transitions. Word has length 256 [2022-11-25 17:55:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:02,094 INFO L495 AbstractCegarLoop]: Abstraction has 15792 states and 22171 transitions. [2022-11-25 17:55:02,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.909090909090908) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 17:55:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 15792 states and 22171 transitions. [2022-11-25 17:55:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-25 17:55:02,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:02,110 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:02,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 17:55:02,110 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:02,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:02,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1171881529, now seen corresponding path program 1 times [2022-11-25 17:55:02,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:02,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106655141] [2022-11-25 17:55:02,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:02,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:55:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:55:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:55:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:55:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:55:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:55:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:55:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:55:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:55:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:55:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:55:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:55:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:55:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:55:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-25 17:55:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:55:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 17:55:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 17:55:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:55:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:55:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:55:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:55:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:55:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-25 17:55:03,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:03,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106655141] [2022-11-25 17:55:03,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106655141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:03,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:03,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 17:55:03,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493108218] [2022-11-25 17:55:03,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:03,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:55:03,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:55:03,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:55:03,359 INFO L87 Difference]: Start difference. First operand 15792 states and 22171 transitions. Second operand has 11 states, 11 states have (on average 15.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 17:55:09,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:15,896 WARN L539 Checker$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 17:55:22,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:22,068 INFO L93 Difference]: Finished difference Result 17514 states and 24606 transitions. [2022-11-25 17:55:22,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:55:22,069 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 257 [2022-11-25 17:55:22,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:22,071 INFO L225 Difference]: With dead ends: 17514 [2022-11-25 17:55:22,071 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:55:22,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:55:22,097 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 2134 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 4692 mSolverCounterSat, 801 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 5962 SdHoareTripleChecker+Invalid, 5495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 4692 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:22,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 5962 Invalid, 5495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [801 Valid, 4692 Invalid, 2 Unknown, 0 Unchecked, 17.4s Time] [2022-11-25 17:55:22,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:55:22,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:55:22,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:55:22,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 257 [2022-11-25 17:55:22,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:22,100 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:55:22,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.0) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (29), 7 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 17:55:22,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:55:22,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:55:22,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:55:22,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 17:55:22,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:56:23,648 WARN L233 SmtUtils]: Spent 60.00s on a formula simplification that was a NOOP. DAG size: 93 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-25 17:58:34,095 WARN L233 SmtUtils]: Spent 2.17m on a formula simplification that was a NOOP. DAG size: 99 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)