./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:30:10,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:30:10,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:30:10,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:30:10,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:30:10,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:30:10,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:30:10,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:30:10,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:30:10,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:30:10,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:30:10,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:30:10,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:30:10,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:30:10,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:30:10,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:30:10,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:30:10,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:30:10,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:30:10,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:30:10,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:30:10,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:30:10,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:30:10,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:30:10,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:30:10,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:30:10,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:30:10,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:30:10,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:30:10,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:30:10,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:30:10,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:30:10,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:30:10,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:30:10,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:30:10,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:30:10,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:30:10,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:30:10,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:30:10,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:30:10,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:30:10,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:30:10,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:30:10,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:30:10,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:30:10,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:30:10,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:30:10,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:30:10,563 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:30:10,563 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:30:10,563 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:30:10,563 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:30:10,563 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:30:10,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:30:10,564 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:30:10,564 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:30:10,564 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:30:10,565 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:30:10,565 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:30:10,565 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:30:10,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:30:10,566 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:30:10,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:30:10,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:30:10,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:30:10,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:30:10,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:30:10,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:30:10,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:30:10,568 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:30:10,568 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:30:10,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:30:10,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:30:10,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:30:10,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:30:10,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:30:10,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:30:10,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:30:10,570 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:30:10,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:30:10,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:30:10,570 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:30:10,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:30:10,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:30:10,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:30:10,571 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_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 [2022-11-25 22:30:10,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:30:10,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:30:10,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:30:10,878 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:30:10,878 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:30:10,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-25 22:30:13,937 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:30:14,450 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:30:14,453 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-25 22:30:14,504 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/data/3c7e11c39/ab93cd0893674da78990ae248e5f9ee9/FLAG65630dd3d [2022-11-25 22:30:14,521 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/data/3c7e11c39/ab93cd0893674da78990ae248e5f9ee9 [2022-11-25 22:30:14,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:30:14,529 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:30:14,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:30:14,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:30:14,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:30:14,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:30:14" (1/1) ... [2022-11-25 22:30:14,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a1f33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:14, skipping insertion in model container [2022-11-25 22:30:14,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:30:14" (1/1) ... [2022-11-25 22:30:14,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:30:14,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:30:15,089 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_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-11-25 22:30:15,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:15,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:15,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:16,679 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-25 22:30:16,687 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 22:30:16,693 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 22:30:16,706 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 22:30:16,898 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-25 22:30:16,906 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-25 22:30:17,115 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-25 22:30:17,474 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-25 22:30:17,485 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-25 22:30:17,592 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-25 22:30:17,598 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-25 22:30:18,026 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-25 22:30:18,031 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-25 22:30:18,035 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-25 22:30:18,180 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-25 22:30:18,180 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-25 22:30:18,184 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-25 22:30:18,185 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-25 22:30:18,417 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-25 22:30:18,466 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 22:30:18,715 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-25 22:30:18,719 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 22:30:18,939 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-25 22:30:19,191 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-25 22:30:19,191 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-25 22:30:19,192 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-25 22:30:20,283 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-25 22:30:20,283 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 22:30:20,288 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 22:30:20,297 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 22:30:20,302 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 22:30:20,969 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-25 22:30:20,975 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-25 22:30:20,981 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-25 22:30:20,990 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-25 22:30:20,991 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-25 22:30:20,995 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-25 22:30:21,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:30:21,042 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:30:21,081 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_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-11-25 22:30:21,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:30:21,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:30:21,172 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-25 22:30:21,173 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 22:30:21,173 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 22:30:21,174 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-25 22:30:21,179 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-25 22:30:21,186 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-25 22:30:21,191 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-25 22:30:21,206 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-25 22:30:21,208 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-25 22:30:21,217 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-25 22:30:21,218 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-25 22:30:21,229 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-25 22:30:21,229 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-25 22:30:21,230 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-25 22:30:21,238 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-25 22:30:21,239 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-25 22:30:21,239 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-25 22:30:21,239 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-25 22:30:21,250 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-25 22:30:21,254 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 22:30:21,259 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-25 22:30:21,260 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 22:30:21,268 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-25 22:30:21,272 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-25 22:30:21,273 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-25 22:30:21,274 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-25 22:30:21,546 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-25 22:30:21,547 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 22:30:21,550 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 22:30:21,561 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 22:30:21,566 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-25 22:30:21,617 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-25 22:30:21,619 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-25 22:30:21,620 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-25 22:30:21,623 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-25 22:30:21,623 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-25 22:30:21,624 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-25 22:30:21,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:30:22,078 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:30:22,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22 WrapperNode [2022-11-25 22:30:22,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:30:22,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:30:22,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:30:22,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:30:22,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,298 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 16, statements flattened = 286 [2022-11-25 22:30:22,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:30:22,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:30:22,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:30:22,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:30:22,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,355 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:30:22,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:30:22,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:30:22,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:30:22,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (1/1) ... [2022-11-25 22:30:22,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:30:22,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:22,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:30:22,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:30:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:30:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:30:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-25 22:30:22,474 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-25 22:30:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:30:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:30:22,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:30:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:30:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:30:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:30:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 22:30:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:30:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 22:30:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:30:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:30:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-25 22:30:22,476 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-25 22:30:22,478 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:30:23,011 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:30:23,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:30:23,518 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:30:23,571 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:30:23,572 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:30:23,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:23 BoogieIcfgContainer [2022-11-25 22:30:23,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:30:23,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:30:23,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:30:23,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:30:23,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:30:14" (1/3) ... [2022-11-25 22:30:23,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68988aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:23, skipping insertion in model container [2022-11-25 22:30:23,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:22" (2/3) ... [2022-11-25 22:30:23,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68988aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:23, skipping insertion in model container [2022-11-25 22:30:23,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:23" (3/3) ... [2022-11-25 22:30:23,587 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-25 22:30:23,596 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:30:23,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:30:23,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 22:30:23,623 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:30:23,753 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 22:30:23,801 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:30:23,828 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 325 places, 329 transitions, 674 flow [2022-11-25 22:30:23,833 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 325 places, 329 transitions, 674 flow [2022-11-25 22:30:23,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 329 transitions, 674 flow [2022-11-25 22:30:23,995 INFO L130 PetriNetUnfolder]: 11/327 cut-off events. [2022-11-25 22:30:23,996 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 22:30:24,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 327 events. 11/327 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 294 event pairs, 0 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 253. Up to 5 conditions per place. [2022-11-25 22:30:24,008 INFO L119 LiptonReduction]: Number of co-enabled transitions 7758 [2022-11-25 22:32:18,847 WARN L233 SmtUtils]: Spent 28.91s on a formula simplification that was a NOOP. DAG size: 494 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:32:42,005 WARN L233 SmtUtils]: Spent 23.13s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:33:01,999 WARN L233 SmtUtils]: Spent 19.99s on a formula simplification that was a NOOP. DAG size: 497 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:33:25,378 WARN L233 SmtUtils]: Spent 23.36s on a formula simplification that was a NOOP. DAG size: 425 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:36:01,530 WARN L233 SmtUtils]: Spent 2.60m on a formula simplification. DAG size of input: 521 DAG size of output: 517 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:37:13,014 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification that was a NOOP. DAG size: 505 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:40:40,727 WARN L233 SmtUtils]: Spent 3.46m on a formula simplification. DAG size of input: 532 DAG size of output: 528 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:42:41,894 WARN L233 SmtUtils]: Spent 2.02m on a formula simplification that was a NOOP. DAG size: 516 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 22:42:41,897 INFO L134 LiptonReduction]: Checked pairs total: 8478 [2022-11-25 22:42:41,898 INFO L136 LiptonReduction]: Total number of compositions: 372 [2022-11-25 22:42:41,907 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 60 flow [2022-11-25 22:42:41,924 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48 states, 44 states have (on average 2.022727272727273) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:42:41,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:42:41,949 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;@78a93abb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:42:41,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-25 22:42:41,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 44 states have (on average 2.022727272727273) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:42:41,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:42:41,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:41,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:42:41,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-25 22:42:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:41,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1180622606, now seen corresponding path program 1 times [2022-11-25 22:42:41,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:42:41,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150622387] [2022-11-25 22:42:41,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:41,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:42:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:43,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:42:43,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:42:43,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150622387] [2022-11-25 22:42:43,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150622387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:43,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:43,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:42:43,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130917113] [2022-11-25 22:42:43,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:43,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:42:43,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:42:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:42:43,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:42:43,171 INFO L87 Difference]: Start difference. First operand has 48 states, 44 states have (on average 2.022727272727273) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:42:43,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:43,437 INFO L93 Difference]: Finished difference Result 40 states and 72 transitions. [2022-11-25 22:42:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:42:43,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 22:42:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:43,450 INFO L225 Difference]: With dead ends: 40 [2022-11-25 22:42:43,450 INFO L226 Difference]: Without dead ends: 40 [2022-11-25 22:42:43,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:42:43,462 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:43,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:42:43,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-25 22:42:43,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-25 22:42:43,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.945945945945946) internal successors, (72), 39 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:42:43,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 72 transitions. [2022-11-25 22:42:43,509 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 72 transitions. Word has length 5 [2022-11-25 22:42:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:43,510 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 72 transitions. [2022-11-25 22:42:43,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:42:43,510 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 72 transitions. [2022-11-25 22:42:43,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:42:43,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:43,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:42:43,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:42:43,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-25 22:42:43,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:43,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1180622607, now seen corresponding path program 1 times [2022-11-25 22:42:43,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:42:43,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592329191] [2022-11-25 22:42:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:43,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:42:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:42:43,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:42:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:42:43,877 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:42:43,878 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:42:43,882 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-25 22:42:43,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-11-25 22:42:43,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-11-25 22:42:43,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-25 22:42:43,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-25 22:42:43,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-25 22:42:43,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-25 22:42:43,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-25 22:42:43,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-25 22:42:43,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-25 22:42:43,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:42:43,899 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:42:43,906 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:42:43,907 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:42:44,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:42:44 BasicIcfg [2022-11-25 22:42:44,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:42:44,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:42:44,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:42:44,014 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:42:44,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:23" (3/4) ... [2022-11-25 22:42:44,018 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:42:44,123 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:42:44,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:42:44,124 INFO L158 Benchmark]: Toolchain (without parser) took 749595.71ms. Allocated memory was 169.9MB in the beginning and 257.9MB in the end (delta: 88.1MB). Free memory was 117.9MB in the beginning and 133.3MB in the end (delta: -15.4MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2022-11-25 22:42:44,125 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:42:44,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7549.20ms. Allocated memory was 169.9MB in the beginning and 213.9MB in the end (delta: 44.0MB). Free memory was 117.5MB in the beginning and 121.5MB in the end (delta: -3.9MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. [2022-11-25 22:42:44,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 220.91ms. Allocated memory is still 213.9MB. Free memory was 121.5MB in the beginning and 112.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 22:42:44,126 INFO L158 Benchmark]: Boogie Preprocessor took 77.52ms. Allocated memory is still 213.9MB. Free memory was 112.0MB in the beginning and 107.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:42:44,126 INFO L158 Benchmark]: RCFGBuilder took 1197.68ms. Allocated memory is still 213.9MB. Free memory was 107.8MB in the beginning and 65.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-25 22:42:44,127 INFO L158 Benchmark]: TraceAbstraction took 740433.32ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 65.9MB in the beginning and 141.7MB in the end (delta: -75.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:42:44,128 INFO L158 Benchmark]: Witness Printer took 110.17ms. Allocated memory is still 257.9MB. Free memory was 141.7MB in the beginning and 133.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 22:42:44,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 7549.20ms. Allocated memory was 169.9MB in the beginning and 213.9MB in the end (delta: 44.0MB). Free memory was 117.5MB in the beginning and 121.5MB in the end (delta: -3.9MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 220.91ms. Allocated memory is still 213.9MB. Free memory was 121.5MB in the beginning and 112.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.52ms. Allocated memory is still 213.9MB. Free memory was 112.0MB in the beginning and 107.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1197.68ms. Allocated memory is still 213.9MB. Free memory was 107.8MB in the beginning and 65.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 740433.32ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 65.9MB in the beginning and 141.7MB in the end (delta: -75.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 110.17ms. Allocated memory is still 257.9MB. Free memory was 141.7MB in the beginning and 133.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 738.1s, 325 PlacesBefore, 28 PlacesAfterwards, 329 TransitionsBefore, 22 TransitionsAfterwards, 7758 CoEnabledTransitionPairs, 10 FixpointIterations, 198 TrivialSequentialCompositions, 122 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 24 ConcurrentYvCompositions, 10 ChoiceCompositions, 372 TotalNumberOfCompositions, 8478 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7094, independent: 6968, independent conditional: 0, independent unconditional: 6968, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 52, unknown conditional: 0, unknown unconditional: 52] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5443, independent: 5395, independent conditional: 0, independent unconditional: 5395, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 15, unknown conditional: 0, unknown unconditional: 15] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5443, independent: 5379, independent conditional: 0, independent unconditional: 5379, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 64, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 15, unknown conditional: 0, unknown unconditional: 15] , SemanticIndependenceRelation.Query Time [ms]: [ total: 25966, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 529, dependent conditional: 0, dependent unconditional: 529, unknown: 25274, unknown conditional: 0, unknown unconditional: 25274] ], Cache Queries: [ total: 7094, independent: 1573, independent conditional: 0, independent unconditional: 1573, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 5480, unknown conditional: 0, unknown unconditional: 5480] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 4, Unknown conditional cache size: 0, Unknown unconditional cache size: 4 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 6694]: integer overflow possible integer overflow possible We found a FailurePath: [L246] 0 unsigned long jiffies; [L6519] 0 const unsigned int default_alloc_size = 4; [L6686] 0 static struct mutex nvram_mutex = { 1, 0 }; [L6687] 0 static ssize_t nvram_len; [L6762-L6768] 0 struct file_operations nvram_fops = { .owner = ((struct module *)0), .llseek = nvram_llseek, .read = read_nvram, .write = write_nvram, .unlocked_ioctl = nvram_unlocked_ioctl, }; [L6769-L6773] 0 static struct miscdevice nvram_dev = { 144, "nvram", &nvram_fops }; [L6792] 0 int (* _whoop_init)(void) = nvram_init; [L6793] 0 void (* _whoop_exit)(void) = nvram_cleanup; [L6794] 0 struct inode *whoop_inode_0; [L6795] 0 struct file *whoop_file_0; [L6796] 0 struct inode *whoop_inode_1; [L6797] 0 struct file *whoop_file_1; [L6798] 0 struct inode *whoop_inode_2; [L6799] 0 struct file *whoop_file_2; [L6800] 0 struct inode *whoop_inode_3; [L6801] 0 struct file *whoop_file_3; [L6802] 0 struct inode *whoop_inode_4; [L6803] 0 struct file *whoop_file_4; [L6804] 0 struct pci_dev *whoop_pci_dev; [L6805] 0 char *whoop_buf; [L6806] 0 struct platform_device *whoop_platform_device; [L6807] 0 struct vm_area_struct *whoop_vm_area_struct; [L6808] 0 struct cx_dev *whoop_cx_dev; [L6809] 0 poll_table *whoop_poll_table; [L6810] 0 loff_t *whoop_loff_t; [L6811] 0 int whoop_int; [L6839] 0 whoop_inode_0 = (struct inode *) malloc(sizeof(struct inode)) [L6840] 0 whoop_file_0 = (struct file *) malloc(sizeof(struct file)) [L6841] 0 whoop_inode_1 = (struct inode *) malloc(sizeof(struct inode)) [L6842] 0 whoop_file_1 = (struct file *) malloc(sizeof(struct file)) [L6843] 0 whoop_inode_2 = (struct inode *) malloc(sizeof(struct inode)) [L6844] 0 whoop_file_2 = (struct file *) malloc(sizeof(struct file)) [L6845] 0 whoop_inode_3 = (struct inode *) malloc(sizeof(struct inode)) [L6846] 0 whoop_file_3 = (struct file *) malloc(sizeof(struct file)) [L6847] 0 whoop_inode_4 = (struct inode *) malloc(sizeof(struct inode)) [L6848] 0 whoop_file_4 = (struct file *) malloc(sizeof(struct file)) [L6849] 0 whoop_pci_dev = (struct pci_dev *) malloc(sizeof(struct pci_dev)) [L6850] 0 whoop_buf = (char *) malloc(sizeof(char)) [L6851] 0 whoop_platform_device = (struct platform_device *) malloc(sizeof(struct platform_device)) [L6852] 0 whoop_vm_area_struct = (struct vm_area_struct *) malloc(sizeof(struct vm_area_struct)) [L6853] 0 whoop_cx_dev = (struct cx_dev *) malloc(sizeof(struct cx_dev)) [L6854] 0 whoop_poll_table = (poll_table *) malloc(sizeof(poll_table)) [L6855] 0 whoop_loff_t = (loff_t *) malloc(sizeof(loff_t)) [L6856] 0 whoop_int = __VERIFIER_nondet_int() [L6857] CALL 0 assume_abort_if_not(whoop_int >= 0) [L170] COND FALSE 0 !(!cond) [L6857] RET 0 assume_abort_if_not(whoop_int >= 0) [L6858] CALL, EXPR 0 _whoop_init() [L6776] 0 int ret = 0; [L6777-L6778] CALL 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6647] 0 return __VERIFIER_nondet_int(); [L6777-L6778] RET 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6779] CALL, EXPR 0 misc_register(&nvram_dev) [L6621] 0 return __VERIFIER_nondet_int(); [L6779] RET, EXPR 0 misc_register(&nvram_dev) [L6779] 0 ret = misc_register(&nvram_dev) [L6780] COND FALSE 0 !(ret != 0) [L6782] CALL, EXPR 0 nvram_get_size() [L6629] 0 return __VERIFIER_nondet_long(); [L6782] RET, EXPR 0 nvram_get_size() [L6782] 0 nvram_len = nvram_get_size() [L6783] COND TRUE 0 nvram_len < 0 [L6784] 0 nvram_len = 8192 [L6786] 0 return ret; [L6858] RET, EXPR 0 _whoop_init() [L6858] 0 int _whoop_init_result = _whoop_init(); [L6859] 0 pthread_t pthread_t_nvram_unlocked_ioctl; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_nvram_unlocked_ioctl, ((void *)0), whoop_wrapper_nvram_unlocked_ioctl, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_unlocked_ioctl, ((void *)0), whoop_wrapper_nvram_unlocked_ioctl, ((void *)0))=13, pthread_t_nvram_llseek={10:0}, pthread_t_nvram_unlocked_ioctl={11:0}, whoop_buf={-18:0}, whoop_cx_dev={-11:0}, whoop_file_0={-16:0}, whoop_file_1={-4:0}, whoop_file_2={-8:0}, whoop_file_3={-15:0}, whoop_file_4={-19:0}, whoop_inode_0={-5:0}, whoop_inode_1={-14:0}, whoop_inode_2={-13:0}, whoop_inode_3={-3:0}, whoop_inode_4={-17:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-10:0}, whoop_platform_device={-12:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-9:0}] [L6862] FCALL, FORK 0 pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0))=14, pthread_t_nvram_llseek={10:0}, pthread_t_nvram_unlocked_ioctl={11:0}, whoop_buf={-18:0}, whoop_cx_dev={-11:0}, whoop_file_0={-16:0}, whoop_file_1={-4:0}, whoop_file_2={-8:0}, whoop_file_3={-15:0}, whoop_file_4={-19:0}, whoop_inode_0={-5:0}, whoop_inode_1={-14:0}, whoop_inode_2={-13:0}, whoop_inode_3={-3:0}, whoop_inode_4={-17:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-10:0}, whoop_platform_device={-12:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-9:0}] [L6829] CALL 2 nvram_llseek(whoop_file_3, __VERIFIER_nondet_long(), whoop_int) [L6691] 2 case 0: [L6693] 2 case 1: [L6694] EXPR 2 file->f_pos [L6694] 2 offset += file->f_pos VAL [={-1:5}, ={-1:4}, \old(offset)=0, \old(origin)=1, default_alloc_size=4, file={-15:0}, file={-15:0}, file->f_pos=9223372036854775808, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-18:0}, whoop_cx_dev={-11:0}, whoop_file_0={-16:0}, whoop_file_1={-4:0}, whoop_file_2={-8:0}, whoop_file_3={-15:0}, whoop_file_4={-19:0}, whoop_inode_0={-5:0}, whoop_inode_1={-14:0}, whoop_inode_2={-13:0}, whoop_inode_3={-3:0}, whoop_inode_4={-17:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-10:0}, whoop_platform_device={-12:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-9:0}] - UnprovableResult [Line: 6861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6862]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6694]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 426 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 740.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 738.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 22:42:44,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ddc8c4f-6abb-44a5-99ae-c54e9a2624b2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)