./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 62cb578dfe3af17ed98c8454048d798a874692901bcf05dac12a80fa481c23e6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:35:58,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:35:58,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:35:58,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:35:58,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:35:58,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:35:58,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:35:58,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:35:58,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:35:58,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:35:58,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:35:58,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:35:58,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:35:58,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:35:58,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:35:58,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:35:58,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:35:58,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:35:58,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:35:58,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:35:58,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:35:58,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:35:58,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:35:58,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:35:58,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:35:58,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:35:58,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:35:58,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:35:58,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:35:58,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:35:58,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:35:58,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:35:58,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:35:58,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:35:58,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:35:58,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:35:58,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:35:58,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:35:58,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:35:58,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:35:58,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:35:58,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:35:58,441 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:35:58,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:35:58,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:35:58,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:35:58,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:35:58,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:35:58,443 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:35:58,443 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:35:58,443 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:35:58,443 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:35:58,443 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:35:58,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:35:58,444 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:35:58,444 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:35:58,444 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:35:58,445 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:35:58,445 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:35:58,445 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:35:58,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:35:58,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:35:58,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:35:58,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:35:58,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:35:58,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:35:58,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:35:58,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:35:58,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:35:58,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:35:58,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:35:58,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:35:58,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:35:58,448 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:35:58,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:35:58,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:35:58,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:35:58,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:35:58,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:35:58,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:35:58,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62cb578dfe3af17ed98c8454048d798a874692901bcf05dac12a80fa481c23e6 [2022-12-14 12:35:58,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:35:58,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:35:58,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:35:58,631 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:35:58,631 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:35:58,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2022-12-14 12:36:01,178 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:36:01,512 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:36:01,512 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2022-12-14 12:36:01,540 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/data/b9c7b2579/a0c04cfbd38e449687a671d452c4933c/FLAGab6f9053f [2022-12-14 12:36:01,728 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/data/b9c7b2579/a0c04cfbd38e449687a671d452c4933c [2022-12-14 12:36:01,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:36:01,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:36:01,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:36:01,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:36:01,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:36:01,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:36:01" (1/1) ... [2022-12-14 12:36:01,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b41c07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:01, skipping insertion in model container [2022-12-14 12:36:01,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:36:01" (1/1) ... [2022-12-14 12:36:01,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:36:01,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:36:02,160 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:02,161 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-12-14 12:36:02,199 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-12-14 12:36:02,204 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-12-14 12:36:02,219 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:02,220 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-12-14 12:36:02,230 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:02,231 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:02,233 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:02,234 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:02,234 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 12:36:02,271 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,271 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:36:02,292 WARN L623 FunctionHandler]: Unknown extern function nonseekable_open [2022-12-14 12:36:02,293 WARN L623 FunctionHandler]: Unknown extern function snd_lookup_oss_minor_data [2022-12-14 12:36:02,294 WARN L623 FunctionHandler]: Unknown extern function snd_card_file_add [2022-12-14 12:36:02,295 WARN L623 FunctionHandler]: Unknown extern function snd_card_file_remove [2022-12-14 12:36:02,295 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,296 WARN L623 FunctionHandler]: Unknown extern function snd_card_file_remove [2022-12-14 12:36:02,299 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:36:02,299 WARN L623 FunctionHandler]: Unknown extern function snd_card_file_remove [2022-12-14 12:36:02,300 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,303 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,304 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,308 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,309 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,344 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,345 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,355 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,356 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,357 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,358 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,358 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,359 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,360 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,360 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,361 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,362 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,362 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,392 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,394 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,401 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,430 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_id [2022-12-14 12:36:02,433 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_numid [2022-12-14 12:36:02,439 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,439 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,443 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_numid [2022-12-14 12:36:02,446 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,446 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,455 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_numid [2022-12-14 12:36:02,459 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_notify [2022-12-14 12:36:02,460 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,460 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,463 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_numid [2022-12-14 12:36:02,467 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_notify [2022-12-14 12:36:02,467 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,467 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,494 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,494 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,500 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_notify [2022-12-14 12:36:02,500 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,500 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,504 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,504 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,507 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,508 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,508 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,513 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,514 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,514 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,515 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,515 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,516 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,516 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,517 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,517 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,524 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,534 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:36:02,535 WARN L623 FunctionHandler]: Unknown extern function snd_iprintf [2022-12-14 12:36:02,536 WARN L623 FunctionHandler]: Unknown extern function snd_iprintf [2022-12-14 12:36:02,536 WARN L623 FunctionHandler]: Unknown extern function snd_iprintf [2022-12-14 12:36:02,537 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:36:02,540 WARN L623 FunctionHandler]: Unknown extern function snd_info_get_str [2022-12-14 12:36:02,541 WARN L623 FunctionHandler]: Unknown extern function __snd_printk [2022-12-14 12:36:02,541 WARN L623 FunctionHandler]: Unknown extern function snd_info_get_str [2022-12-14 12:36:02,542 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:36:02,542 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:36:02,543 WARN L623 FunctionHandler]: Unknown extern function snd_info_get_str [2022-12-14 12:36:02,543 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 12:36:02,543 WARN L623 FunctionHandler]: Unknown extern function __snd_printk [2022-12-14 12:36:02,544 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:36:02,544 WARN L623 FunctionHandler]: Unknown extern function __snd_printk [2022-12-14 12:36:02,545 WARN L623 FunctionHandler]: Unknown extern function kstrdup [2022-12-14 12:36:02,545 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,546 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,546 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,546 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:36:02,546 WARN L623 FunctionHandler]: Unknown extern function snd_info_get_line [2022-12-14 12:36:02,548 WARN L623 FunctionHandler]: Unknown extern function snd_info_create_card_entry [2022-12-14 12:36:02,549 WARN L623 FunctionHandler]: Unknown extern function snd_info_register [2022-12-14 12:36:02,550 WARN L623 FunctionHandler]: Unknown extern function snd_info_free_entry [2022-12-14 12:36:02,552 WARN L623 FunctionHandler]: Unknown extern function snd_info_free_entry [2022-12-14 12:36:02,568 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,569 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,572 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 12:36:02,572 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,572 WARN L623 FunctionHandler]: Unknown extern function snd_register_oss_device [2022-12-14 12:36:02,573 WARN L623 FunctionHandler]: Unknown extern function __snd_printk [2022-12-14 12:36:02,573 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,573 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,574 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,574 WARN L623 FunctionHandler]: Unknown extern function snd_oss_info_register [2022-12-14 12:36:02,575 WARN L623 FunctionHandler]: Unknown extern function snd_oss_info_register [2022-12-14 12:36:02,575 WARN L623 FunctionHandler]: Unknown extern function snd_unregister_oss_device [2022-12-14 12:36:02,590 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,590 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,590 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 12:36:02,591 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,591 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,591 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,592 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,592 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,593 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,593 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,593 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,593 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,594 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,594 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,594 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,595 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,595 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,595 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,595 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,595 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,596 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,596 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,596 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,596 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,597 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,597 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,597 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,597 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,597 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,598 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,598 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,598 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,600 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_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i[176586,176599] [2022-12-14 12:36:02,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:36:02,638 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:36:02,679 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:02,680 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-12-14 12:36:02,684 WARN L623 FunctionHandler]: Unknown extern function __get_free_pages [2022-12-14 12:36:02,685 WARN L623 FunctionHandler]: Unknown extern function kmem_cache_alloc_notrace [2022-12-14 12:36:02,686 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:36:02,687 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_dereference [2022-12-14 12:36:02,689 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:02,690 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:02,690 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:02,691 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:36:02,691 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 12:36:02,693 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,693 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:36:02,693 WARN L623 FunctionHandler]: Unknown extern function nonseekable_open [2022-12-14 12:36:02,694 WARN L623 FunctionHandler]: Unknown extern function snd_lookup_oss_minor_data [2022-12-14 12:36:02,694 WARN L623 FunctionHandler]: Unknown extern function snd_card_file_add [2022-12-14 12:36:02,695 WARN L623 FunctionHandler]: Unknown extern function snd_card_file_remove [2022-12-14 12:36:02,697 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,697 WARN L623 FunctionHandler]: Unknown extern function snd_card_file_remove [2022-12-14 12:36:02,698 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:36:02,698 WARN L623 FunctionHandler]: Unknown extern function snd_card_file_remove [2022-12-14 12:36:02,698 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,699 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,700 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,701 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,702 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,722 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,723 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,728 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,729 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,729 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,730 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,730 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,731 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,731 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,731 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,732 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,732 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,745 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,746 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,747 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:36:02,749 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,757 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_id [2022-12-14 12:36:02,758 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_numid [2022-12-14 12:36:02,761 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,761 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,762 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_numid [2022-12-14 12:36:02,765 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,765 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,768 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_numid [2022-12-14 12:36:02,771 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_notify [2022-12-14 12:36:02,772 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,772 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,773 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_find_numid [2022-12-14 12:36:02,776 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_notify [2022-12-14 12:36:02,776 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,777 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,788 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,788 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,792 WARN L623 FunctionHandler]: Unknown extern function snd_ctl_notify [2022-12-14 12:36:02,793 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,793 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,795 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,796 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,797 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,798 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,798 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,800 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,800 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,801 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,802 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,802 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,803 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,803 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,804 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,805 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,811 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,836 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:36:02,836 WARN L623 FunctionHandler]: Unknown extern function snd_iprintf [2022-12-14 12:36:02,837 WARN L623 FunctionHandler]: Unknown extern function snd_iprintf [2022-12-14 12:36:02,838 WARN L623 FunctionHandler]: Unknown extern function snd_iprintf [2022-12-14 12:36:02,838 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:36:02,840 WARN L623 FunctionHandler]: Unknown extern function snd_info_get_str [2022-12-14 12:36:02,840 WARN L623 FunctionHandler]: Unknown extern function __snd_printk [2022-12-14 12:36:02,841 WARN L623 FunctionHandler]: Unknown extern function snd_info_get_str [2022-12-14 12:36:02,842 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:36:02,842 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:36:02,842 WARN L623 FunctionHandler]: Unknown extern function snd_info_get_str [2022-12-14 12:36:02,843 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 12:36:02,843 WARN L623 FunctionHandler]: Unknown extern function __snd_printk [2022-12-14 12:36:02,844 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:36:02,845 WARN L623 FunctionHandler]: Unknown extern function __snd_printk [2022-12-14 12:36:02,846 WARN L623 FunctionHandler]: Unknown extern function kstrdup [2022-12-14 12:36:02,846 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,847 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,847 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,847 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:36:02,848 WARN L623 FunctionHandler]: Unknown extern function snd_info_get_line [2022-12-14 12:36:02,848 WARN L623 FunctionHandler]: Unknown extern function snd_info_create_card_entry [2022-12-14 12:36:02,856 WARN L623 FunctionHandler]: Unknown extern function snd_info_register [2022-12-14 12:36:02,857 WARN L623 FunctionHandler]: Unknown extern function snd_info_free_entry [2022-12-14 12:36:02,857 WARN L623 FunctionHandler]: Unknown extern function snd_info_free_entry [2022-12-14 12:36:02,875 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 12:36:02,876 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,877 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 12:36:02,878 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:36:02,878 WARN L623 FunctionHandler]: Unknown extern function snd_register_oss_device [2022-12-14 12:36:02,878 WARN L623 FunctionHandler]: Unknown extern function __snd_printk [2022-12-14 12:36:02,879 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:36:02,879 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,880 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:36:02,880 WARN L623 FunctionHandler]: Unknown extern function snd_oss_info_register [2022-12-14 12:36:02,884 WARN L623 FunctionHandler]: Unknown extern function snd_oss_info_register [2022-12-14 12:36:02,885 WARN L623 FunctionHandler]: Unknown extern function snd_unregister_oss_device [2022-12-14 12:36:02,887 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,887 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,888 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 12:36:02,888 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,888 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,889 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 12:36:02,889 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,889 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,890 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,890 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,890 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,890 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,891 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,891 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,891 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,892 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,892 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,892 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,892 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,893 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,893 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,893 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,893 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,894 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,894 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,894 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,894 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,895 WARN L623 FunctionHandler]: Unknown extern function down_read [2022-12-14 12:36:02,895 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,895 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,896 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,896 WARN L623 FunctionHandler]: Unknown extern function up_read [2022-12-14 12:36:02,896 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_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i[176586,176599] [2022-12-14 12:36:02,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:36:02,937 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:36:02,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02 WrapperNode [2022-12-14 12:36:02,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:36:02,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:36:02,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:36:02,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:36:02,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:02,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,083 INFO L138 Inliner]: procedures = 186, calls = 1553, calls flagged for inlining = 91, calls inlined = 88, statements flattened = 4274 [2022-12-14 12:36:03,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:36:03,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:36:03,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:36:03,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:36:03,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,185 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:36:03,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:36:03,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:36:03,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:36:03,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (1/1) ... [2022-12-14 12:36:03,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:36:03,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:36:03,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:36:03,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:36:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_volume1_sw [2022-12-14 12:36:03,271 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_volume1_sw [2022-12-14 12:36:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_file_remove [2022-12-14 12:36:03,271 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_file_remove [2022-12-14 12:36:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 12:36:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-12-14 12:36:03,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-12-14 12:36:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_recsrc2 [2022-12-14 12:36:03,271 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_recsrc2 [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_find_numid [2022-12-14 12:36:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_find_numid [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv [2022-12-14 12:36:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 12:36:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_build_input [2022-12-14 12:36:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_build_input [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 12:36:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 12:36:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_test_id [2022-12-14 12:36:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_test_id [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 12:36:03,272 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 12:36:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_volume1_vol [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_volume1_vol [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_free_entry [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_free_entry [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_release [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_release [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv2 [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv2 [2022-12-14 12:36:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv1 [2022-12-14 12:36:03,273 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv1 [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-12-14 12:36:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-12-14 12:36:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-12-14 12:36:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure mixer_slot_clear [2022-12-14 12:36:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mixer_slot_clear [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_notify [2022-12-14 12:36:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_notify [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 12:36:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 12:36:03,274 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_ioctl1 [2022-12-14 12:36:03,274 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_ioctl1 [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-12-14 12:36:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_controls_rwsem_of_snd_card [2022-12-14 12:36:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_controls_rwsem_of_snd_card [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-12-14 12:36:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 12:36:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_volume1_sw [2022-12-14 12:36:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_volume1_sw [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_controls_rwsem_of_snd_card [2022-12-14 12:36:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_controls_rwsem_of_snd_card [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_build_test [2022-12-14 12:36:03,275 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_build_test [2022-12-14 12:36:03,275 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure snd_oss_info_register [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_oss_info_register [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_volume1_vol [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_volume1_vol [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_notify_handler [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_notify_handler [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2022-12-14 12:36:03,276 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_open [2022-12-14 12:36:03,276 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_open [2022-12-14 12:36:03,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:36:03,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-12-14 12:36:03,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-12-14 12:36:03,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:36:03,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:36:03,633 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:36:03,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:36:13,250 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:36:14,138 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:36:14,138 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:36:14,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:36:14 BoogieIcfgContainer [2022-12-14 12:36:14,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:36:14,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:36:14,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:36:14,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:36:14,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:36:01" (1/3) ... [2022-12-14 12:36:14,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ae7519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:36:14, skipping insertion in model container [2022-12-14 12:36:14,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:36:02" (2/3) ... [2022-12-14 12:36:14,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ae7519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:36:14, skipping insertion in model container [2022-12-14 12:36:14,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:36:14" (3/3) ... [2022-12-14 12:36:14,147 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2022-12-14 12:36:14,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:36:14,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:36:14,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:36:14,215 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7dc3424d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:36:14,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:36:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 843 states, 540 states have (on average 1.3925925925925926) internal successors, (752), 557 states have internal predecessors, (752), 255 states have call successors, (255), 46 states have call predecessors, (255), 46 states have return successors, (255), 255 states have call predecessors, (255), 255 states have call successors, (255) [2022-12-14 12:36:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 12:36:14,226 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:14,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:36:14,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:36:14,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash -253119607, now seen corresponding path program 1 times [2022-12-14 12:36:14,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:14,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443441703] [2022-12-14 12:36:14,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:14,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:36:14,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:14,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443441703] [2022-12-14 12:36:14,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443441703] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:36:14,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:36:14,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:36:14,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554188210] [2022-12-14 12:36:14,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:36:14,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:36:14,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:36:14,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:36:14,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:36:14,604 INFO L87 Difference]: Start difference. First operand has 843 states, 540 states have (on average 1.3925925925925926) internal successors, (752), 557 states have internal predecessors, (752), 255 states have call successors, (255), 46 states have call predecessors, (255), 46 states have return successors, (255), 255 states have call predecessors, (255), 255 states have call successors, (255) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:36:16,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:36:16,112 INFO L93 Difference]: Finished difference Result 1659 states and 2601 transitions. [2022-12-14 12:36:16,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:36:16,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 12:36:16,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:36:16,135 INFO L225 Difference]: With dead ends: 1659 [2022-12-14 12:36:16,135 INFO L226 Difference]: Without dead ends: 817 [2022-12-14 12:36:16,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:36:16,148 INFO L413 NwaCegarLoop]: 1091 mSDtfsCounter, 4 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:36:16,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2180 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 12:36:16,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2022-12-14 12:36:16,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 813. [2022-12-14 12:36:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 521 states have (on average 1.381957773512476) internal successors, (720), 534 states have internal predecessors, (720), 247 states have call successors, (247), 45 states have call predecessors, (247), 44 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2022-12-14 12:36:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1211 transitions. [2022-12-14 12:36:16,217 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1211 transitions. Word has length 11 [2022-12-14 12:36:16,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:36:16,217 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 1211 transitions. [2022-12-14 12:36:16,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:36:16,217 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1211 transitions. [2022-12-14 12:36:16,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 12:36:16,218 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:36:16,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:36:16,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:36:16,219 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:36:16,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:36:16,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1546734737, now seen corresponding path program 1 times [2022-12-14 12:36:16,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:36:16,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171956249] [2022-12-14 12:36:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:16,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:36:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:36:16,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:36:16,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171956249] [2022-12-14 12:36:16,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171956249] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:36:16,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470496911] [2022-12-14 12:36:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:36:16,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:36:16,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:36:16,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:36:16,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:36:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:36:16,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:36:16,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:36:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:36:16,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:36:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:36:16,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470496911] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:36:16,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [62845452] [2022-12-14 12:36:16,953 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 12:36:16,954 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:36:16,958 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:36:16,964 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:36:16,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:37:02,473 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_handler_precall with input of size 1626 for LOIs [2022-12-14 12:37:03,621 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:37:19,765 WARN L233 SmtUtils]: Spent 16.01s on a formula simplification that was a NOOP. DAG size: 1628 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:37:35,286 WARN L233 SmtUtils]: Spent 15.36s on a formula simplification that was a NOOP. DAG size: 1626 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:38:09,331 WARN L233 SmtUtils]: Spent 33.76s on a formula simplification. DAG size of input: 1666 DAG size of output: 1640 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:38:09,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [62845452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:09,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:38:09,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 4] total 12 [2022-12-14 12:38:09,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471355863] [2022-12-14 12:38:09,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:09,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 12:38:09,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:09,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 12:38:09,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 12:38:09,739 INFO L87 Difference]: Start difference. First operand 813 states and 1211 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:39:10,277 WARN L233 SmtUtils]: Spent 1.00m on a formula simplification. DAG size of input: 1641 DAG size of output: 1640 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:39:40,026 WARN L233 SmtUtils]: Spent 29.45s on a formula simplification. DAG size of input: 1635 DAG size of output: 1634 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:39:46,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:39:48,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:39:54,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:40:09,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:40:18,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:40:20,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:40:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:40:22,075 INFO L93 Difference]: Finished difference Result 1960 states and 2955 transitions. [2022-12-14 12:40:22,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 12:40:22,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-14 12:40:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:40:22,082 INFO L225 Difference]: With dead ends: 1960 [2022-12-14 12:40:22,082 INFO L226 Difference]: Without dead ends: 1151 [2022-12-14 12:40:22,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 156.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-14 12:40:22,085 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 544 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 49 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:40:22,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 3088 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1236 Invalid, 3 Unknown, 0 Unchecked, 41.0s Time] [2022-12-14 12:40:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-12-14 12:40:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1102. [2022-12-14 12:40:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 716 states have (on average 1.405027932960894) internal successors, (1006), 748 states have internal predecessors, (1006), 322 states have call successors, (322), 67 states have call predecessors, (322), 63 states have return successors, (347), 297 states have call predecessors, (347), 319 states have call successors, (347) [2022-12-14 12:40:22,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1675 transitions. [2022-12-14 12:40:22,964 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1675 transitions. Word has length 14 [2022-12-14 12:40:22,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:40:22,964 INFO L495 AbstractCegarLoop]: Abstraction has 1102 states and 1675 transitions. [2022-12-14 12:40:22,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:40:22,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1675 transitions. [2022-12-14 12:40:22,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 12:40:22,965 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:40:22,965 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] [2022-12-14 12:40:22,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:40:23,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:40:23,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:40:23,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:40:23,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1878954889, now seen corresponding path program 1 times [2022-12-14 12:40:23,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:40:23,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056313561] [2022-12-14 12:40:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:40:23,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:40:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:40:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:40:23,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:40:23,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056313561] [2022-12-14 12:40:23,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056313561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:40:23,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:40:23,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:40:23,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850034715] [2022-12-14 12:40:23,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:40:23,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:40:23,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:40:23,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:40:23,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:40:23,341 INFO L87 Difference]: Start difference. First operand 1102 states and 1675 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 12:40:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:40:27,590 INFO L93 Difference]: Finished difference Result 1925 states and 2903 transitions. [2022-12-14 12:40:27,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:40:27,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-12-14 12:40:27,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:40:27,596 INFO L225 Difference]: With dead ends: 1925 [2022-12-14 12:40:27,597 INFO L226 Difference]: Without dead ends: 1108 [2022-12-14 12:40:27,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:40:27,601 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 76 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 3161 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:40:27,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 3161 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 12:40:27,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-12-14 12:40:28,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2022-12-14 12:40:28,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 721 states have (on average 1.4022191400832178) internal successors, (1011), 752 states have internal predecessors, (1011), 322 states have call successors, (322), 69 states have call predecessors, (322), 64 states have return successors, (349), 297 states have call predecessors, (349), 319 states have call successors, (349) [2022-12-14 12:40:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1682 transitions. [2022-12-14 12:40:28,478 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1682 transitions. Word has length 21 [2022-12-14 12:40:28,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:40:28,478 INFO L495 AbstractCegarLoop]: Abstraction has 1108 states and 1682 transitions. [2022-12-14 12:40:28,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 12:40:28,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1682 transitions. [2022-12-14 12:40:28,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 12:40:28,479 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:40:28,480 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] [2022-12-14 12:40:28,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:40:28,480 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:40:28,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:40:28,480 INFO L85 PathProgramCache]: Analyzing trace with hash -571882228, now seen corresponding path program 1 times [2022-12-14 12:40:28,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:40:28,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460115990] [2022-12-14 12:40:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:40:28,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:40:28,509 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:40:28,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409965842] [2022-12-14 12:40:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:40:28,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:40:28,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:40:28,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:40:28,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:40:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:40:28,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:40:28,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:40:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:40:29,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:40:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:40:29,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:40:29,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460115990] [2022-12-14 12:40:29,116 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:40:29,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409965842] [2022-12-14 12:40:29,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409965842] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:40:29,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1704123670] [2022-12-14 12:40:29,119 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-12-14 12:40:29,119 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:40:29,119 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:40:29,120 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:40:29,120 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:40:42,441 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 12:40:42,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-12-14 12:40:42,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 12:40:42,495 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 12:40:50,029 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_handler_precall with input of size 1626 for LOIs [2022-12-14 12:40:51,197 INFO L197 IcfgInterpreter]: Interpreting procedure snd_mixer_oss_notify_handler with input of size 1661 for LOIs [2022-12-14 12:40:55,917 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:41:13,372 WARN L233 SmtUtils]: Spent 17.32s on a formula simplification that was a NOOP. DAG size: 1628 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:41:31,315 WARN L233 SmtUtils]: Spent 17.77s on a formula simplification that was a NOOP. DAG size: 1626 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:41:48,620 WARN L233 SmtUtils]: Spent 17.18s on a formula simplification that was a NOOP. DAG size: 1636 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:42:05,991 WARN L233 SmtUtils]: Spent 17.20s on a formula simplification that was a NOOP. DAG size: 1648 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:42:23,769 WARN L233 SmtUtils]: Spent 17.56s on a formula simplification that was a NOOP. DAG size: 1653 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:42:42,172 WARN L233 SmtUtils]: Spent 18.07s on a formula simplification that was a NOOP. DAG size: 1661 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:43:35,779 WARN L233 SmtUtils]: Spent 52.33s on a formula simplification. DAG size of input: 1687 DAG size of output: 1683 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:44:30,704 WARN L233 SmtUtils]: Spent 53.82s on a formula simplification. DAG size of input: 1701 DAG size of output: 1696 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:44:30,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1704123670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:30,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 12:44:30,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4] total 14 [2022-12-14 12:44:30,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231204516] [2022-12-14 12:44:30,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:30,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 12:44:30,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:30,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 12:44:30,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-12-14 12:44:30,716 INFO L87 Difference]: Start difference. First operand 1108 states and 1682 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:44:48,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:50,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:52,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:54,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:09,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:46,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:04,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:06,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:08,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:10,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:15,341 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 [] [2022-12-14 12:46:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:22,201 INFO L93 Difference]: Finished difference Result 1977 states and 2972 transitions. [2022-12-14 12:46:22,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 12:46:22,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-12-14 12:46:22,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:22,208 INFO L225 Difference]: With dead ends: 1977 [2022-12-14 12:46:22,208 INFO L226 Difference]: Without dead ends: 1155 [2022-12-14 12:46:22,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 214.8s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-12-14 12:46:22,212 INFO L413 NwaCegarLoop]: 1093 mSDtfsCounter, 407 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 21 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 4320 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:22,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 4320 Invalid, 2695 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 2665 Invalid, 9 Unknown, 0 Unchecked, 110.1s Time] [2022-12-14 12:46:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-12-14 12:46:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1113. [2022-12-14 12:46:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 725 states have (on average 1.4013793103448275) internal successors, (1016), 756 states have internal predecessors, (1016), 323 states have call successors, (323), 70 states have call predecessors, (323), 64 states have return successors, (350), 297 states have call predecessors, (350), 320 states have call successors, (350) [2022-12-14 12:46:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1689 transitions. [2022-12-14 12:46:23,171 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1689 transitions. Word has length 23 [2022-12-14 12:46:23,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:46:23,171 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1689 transitions. [2022-12-14 12:46:23,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:46:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1689 transitions. [2022-12-14 12:46:23,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 12:46:23,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:23,172 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] [2022-12-14 12:46:23,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:46:23,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:23,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:23,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash 671095794, now seen corresponding path program 1 times [2022-12-14 12:46:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:23,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37468521] [2022-12-14 12:46:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:23,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:23,433 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:46:23,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551368704] [2022-12-14 12:46:23,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:23,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:23,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:46:23,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:46:23,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a19425c-aff4-4e1b-aa2b-ed03bbcdf82d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:46:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:23,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:46:23,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:46:23,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:46:23,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:46:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:46:24,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:24,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37468521] [2022-12-14 12:46:24,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:46:24,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551368704] [2022-12-14 12:46:24,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551368704] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:46:24,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1536831855] [2022-12-14 12:46:24,067 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-12-14 12:46:24,067 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:46:24,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:46:24,068 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:46:24,068 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:47:05,484 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 12:47:05,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-12-14 12:47:05,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 12:47:05,523 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 12:47:07,535 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_handler_precall with input of size 1626 for LOIs [2022-12-14 12:47:08,683 INFO L197 IcfgInterpreter]: Interpreting procedure snd_mixer_oss_notify_handler with input of size 87 for LOIs [2022-12-14 12:47:08,791 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:47:28,775 WARN L233 SmtUtils]: Spent 19.84s on a formula simplification that was a NOOP. DAG size: 1628 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:47:46,613 WARN L233 SmtUtils]: Spent 17.64s on a formula simplification that was a NOOP. DAG size: 1626 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:47:50,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1536831855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:47:50,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 12:47:50,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 5] total 16 [2022-12-14 12:47:50,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088723444] [2022-12-14 12:47:50,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:47:50,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 12:47:50,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:47:50,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 12:47:50,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-12-14 12:47:50,446 INFO L87 Difference]: Start difference. First operand 1113 states and 1689 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:48:30,277 WARN L233 SmtUtils]: Spent 38.23s on a formula simplification. DAG size of input: 1631 DAG size of output: 1630 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:49:08,824 WARN L233 SmtUtils]: Spent 37.72s on a formula simplification. DAG size of input: 1643 DAG size of output: 1642 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:49:47,546 WARN L233 SmtUtils]: Spent 38.14s on a formula simplification. DAG size of input: 1658 DAG size of output: 1656 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:50:24,994 WARN L233 SmtUtils]: Spent 36.97s on a formula simplification. DAG size of input: 1635 DAG size of output: 1634 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)