./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 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_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/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_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/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_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh --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-2329fc7 [2022-12-14 10:55:53,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:55:53,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:55:54,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:55:54,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:55:54,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:55:54,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:55:54,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:55:54,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:55:54,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:55:54,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:55:54,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:55:54,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:55:54,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:55:54,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:55:54,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:55:54,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:55:54,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:55:54,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:55:54,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:55:54,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:55:54,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:55:54,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:55:54,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:55:54,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:55:54,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:55:54,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:55:54,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:55:54,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:55:54,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:55:54,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:55:54,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:55:54,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:55:54,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:55:54,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:55:54,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:55:54,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:55:54,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:55:54,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:55:54,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:55:54,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:55:54,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 10:55:54,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:55:54,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:55:54,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:55:54,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:55:54,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:55:54,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:55:54,053 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:55:54,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:55:54,053 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:55:54,053 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:55:54,053 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:55:54,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:55:54,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:55:54,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:55:54,054 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:55:54,054 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:55:54,054 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:55:54,054 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:55:54,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:55:54,055 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:55:54,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:55:54,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:55:54,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:55:54,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:55:54,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:55:54,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:55:54,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:55:54,056 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:55:54,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:55:54,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:55:54,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:55:54,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:55:54,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:55:54,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:55:54,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:55:54,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:55:54,057 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:55:54,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:55:54,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:55:54,057 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:55:54,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:55:54,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:55:54,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:55:54,057 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_081590b2-8203-42ca-8cc0-78c3bb509973/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 [2022-12-14 10:55:54,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:55:54,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:55:54,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:55:54,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:55:54,244 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:55:54,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-14 10:55:56,893 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:55:57,215 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:55:57,216 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-14 10:55:57,241 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/data/5317f0b5d/b45eda853fef40e9b2ccf762113da326/FLAGb2b18360a [2022-12-14 10:55:57,251 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/data/5317f0b5d/b45eda853fef40e9b2ccf762113da326 [2022-12-14 10:55:57,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:55:57,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:55:57,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:55:57,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:55:57,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:55:57,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:55:57" (1/1) ... [2022-12-14 10:55:57,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce72334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:57, skipping insertion in model container [2022-12-14 10:55:57,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:55:57" (1/1) ... [2022-12-14 10:55:57,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:55:57,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:55:57,539 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_081590b2-8203-42ca-8cc0-78c3bb509973/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-14 10:55:57,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:57,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:55:57,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:55:58,189 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-14 10:55:58,192 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 10:55:58,195 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 10:55:58,201 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 10:55:58,284 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 10:55:58,289 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 10:55:58,394 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-14 10:55:58,569 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 10:55:58,575 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 10:55:58,621 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-14 10:55:58,624 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-14 10:55:58,832 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-14 10:55:58,834 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-14 10:55:58,836 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-14 10:55:58,905 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 10:55:58,905 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 10:55:58,907 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-14 10:55:58,908 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 10:55:59,040 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-14 10:55:59,070 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 10:55:59,226 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-14 10:55:59,229 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 10:55:59,362 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 10:55:59,508 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-14 10:55:59,508 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-14 10:55:59,508 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-14 10:56:00,303 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-14 10:56:00,303 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 10:56:00,306 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 10:56:00,309 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 10:56:00,311 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 10:56:00,779 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-14 10:56:00,782 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-14 10:56:00,786 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-14 10:56:00,793 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 10:56:00,794 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-14 10:56:00,796 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 10:56:00,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:56:00,823 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:56:00,834 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_081590b2-8203-42ca-8cc0-78c3bb509973/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-14 10:56:00,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:56:00,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:56:00,870 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-14 10:56:00,870 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 10:56:00,871 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 10:56:00,871 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 10:56:00,876 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 10:56:00,877 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 10:56:00,880 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-14 10:56:00,891 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 10:56:00,892 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 10:56:00,895 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-14 10:56:00,895 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-14 10:56:00,904 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-14 10:56:00,904 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-14 10:56:00,905 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-14 10:56:00,908 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 10:56:00,909 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 10:56:00,909 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-14 10:56:00,909 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 10:56:00,918 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-14 10:56:00,921 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 10:56:00,926 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-14 10:56:00,927 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 10:56:00,931 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 10:56:00,935 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-14 10:56:00,935 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-14 10:56:00,936 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-14 10:56:01,019 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-14 10:56:01,019 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 10:56:01,022 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 10:56:01,025 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 10:56:01,028 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 10:56:01,065 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-14 10:56:01,066 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-14 10:56:01,067 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-14 10:56:01,069 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 10:56:01,069 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-14 10:56:01,069 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 10:56:01,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:56:01,489 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:56:01,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01 WrapperNode [2022-12-14 10:56:01,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:56:01,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:56:01,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:56:01,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:56:01,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,584 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 16, statements flattened = 286 [2022-12-14 10:56:01,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:56:01,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:56:01,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:56:01,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:56:01,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:56:01,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:56:01,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:56:01,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:56:01,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (1/1) ... [2022-12-14 10:56:01,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:56:01,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:56:01,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:56:01,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-14 10:56:01,689 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:56:01,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:56:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 10:56:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:56:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 10:56:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:56:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:56:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-14 10:56:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-14 10:56:01,691 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 10:56:01,992 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:56:01,994 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:56:02,310 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:56:02,328 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:56:02,329 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:56:02,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:56:02 BoogieIcfgContainer [2022-12-14 10:56:02,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:56:02,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:56:02,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:56:02,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:56:02,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:55:57" (1/3) ... [2022-12-14 10:56:02,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b590548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:56:02, skipping insertion in model container [2022-12-14 10:56:02,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:56:01" (2/3) ... [2022-12-14 10:56:02,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b590548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:56:02, skipping insertion in model container [2022-12-14 10:56:02,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:56:02" (3/3) ... [2022-12-14 10:56:02,336 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-14 10:56:02,342 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 10:56:02,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:56:02,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 10:56:02,350 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 10:56:02,410 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 10:56:02,456 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:56:02,468 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 325 places, 329 transitions, 674 flow [2022-12-14 10:56:02,470 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 325 places, 329 transitions, 674 flow [2022-12-14 10:56:02,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 329 transitions, 674 flow [2022-12-14 10:56:02,575 INFO L130 PetriNetUnfolder]: 11/327 cut-off events. [2022-12-14 10:56:02,575 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 10:56:02,581 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 291 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. [2022-12-14 10:56:02,585 INFO L119 LiptonReduction]: Number of co-enabled transitions 7758 [2022-12-14 10:57:41,427 WARN L233 SmtUtils]: Spent 25.59s on a formula simplification that was a NOOP. DAG size: 484 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:58:03,494 WARN L233 SmtUtils]: Spent 22.06s on a formula simplification that was a NOOP. DAG size: 424 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:58:26,298 WARN L233 SmtUtils]: Spent 22.80s on a formula simplification that was a NOOP. DAG size: 487 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:58:46,106 WARN L233 SmtUtils]: Spent 19.80s on a formula simplification that was a NOOP. DAG size: 427 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:01:16,176 WARN L233 SmtUtils]: Spent 2.50m on a formula simplification. DAG size of input: 522 DAG size of output: 515 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:02:25,443 WARN L233 SmtUtils]: Spent 1.15m on a formula simplification that was a NOOP. DAG size: 501 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:04:38,607 WARN L233 SmtUtils]: Spent 2.22m on a formula simplification. DAG size of input: 535 DAG size of output: 528 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:06:02,395 WARN L233 SmtUtils]: Spent 1.40m on a formula simplification that was a NOOP. DAG size: 514 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:06:02,397 INFO L134 LiptonReduction]: Checked pairs total: 8458 [2022-12-14 11:06:02,397 INFO L136 LiptonReduction]: Total number of compositions: 378 [2022-12-14 11:06:02,402 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 60 flow [2022-12-14 11:06:02,412 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) [2022-12-14 11:06:02,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:06:02,427 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;@2761bb50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:06:02,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 11:06:02,429 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) [2022-12-14 11:06:02,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 11:06:02,432 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:06:02,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 11:06:02,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-14 11:06:02,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:06:02,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1186158927, now seen corresponding path program 1 times [2022-12-14 11:06:02,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:06:02,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495984448] [2022-12-14 11:06:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:06:02,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:06:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:06:02,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:06:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:06:02,753 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:06:02,754 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:06:02,755 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-14 11:06:02,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-12-14 11:06:02,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-12-14 11:06:02,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-14 11:06:02,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-12-14 11:06:02,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-12-14 11:06:02,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-14 11:06:02,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-14 11:06:02,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-14 11:06:02,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-14 11:06:02,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:06:02,760 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 11:06:02,765 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 11:06:02,765 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:06:02,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:06:02 BasicIcfg [2022-12-14 11:06:02,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:06:02,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:06:02,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:06:02,796 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:06:02,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:56:02" (3/4) ... [2022-12-14 11:06:02,798 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 11:06:02,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:06:02,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:06:02,842 INFO L158 Benchmark]: Toolchain (without parser) took 605587.76ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 101.7MB in the beginning and 93.9MB in the end (delta: 7.8MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2022-12-14 11:06:02,843 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 100.5MB in the end (delta: 202.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:06:02,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4234.20ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 101.7MB in the beginning and 55.6MB in the end (delta: 46.2MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2022-12-14 11:06:02,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.47ms. Allocated memory is still 176.2MB. Free memory was 55.6MB in the beginning and 108.5MB in the end (delta: -53.0MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2022-12-14 11:06:02,843 INFO L158 Benchmark]: Boogie Preprocessor took 41.63ms. Allocated memory is still 176.2MB. Free memory was 108.5MB in the beginning and 104.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 11:06:02,844 INFO L158 Benchmark]: RCFGBuilder took 703.77ms. Allocated memory is still 176.2MB. Free memory was 104.3MB in the beginning and 63.4MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-14 11:06:02,844 INFO L158 Benchmark]: TraceAbstraction took 600463.19ms. Allocated memory is still 176.2MB. Free memory was 62.4MB in the beginning and 101.3MB in the end (delta: -38.9MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2022-12-14 11:06:02,844 INFO L158 Benchmark]: Witness Printer took 45.77ms. Allocated memory is still 176.2MB. Free memory was 101.3MB in the beginning and 93.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 11:06:02,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 100.5MB in the end (delta: 202.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4234.20ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 101.7MB in the beginning and 55.6MB in the end (delta: 46.2MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.47ms. Allocated memory is still 176.2MB. Free memory was 55.6MB in the beginning and 108.5MB in the end (delta: -53.0MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.63ms. Allocated memory is still 176.2MB. Free memory was 108.5MB in the beginning and 104.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 703.77ms. Allocated memory is still 176.2MB. Free memory was 104.3MB in the beginning and 63.4MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 600463.19ms. Allocated memory is still 176.2MB. Free memory was 62.4MB in the beginning and 101.3MB in the end (delta: -38.9MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Witness Printer took 45.77ms. Allocated memory is still 176.2MB. Free memory was 101.3MB in the beginning and 93.9MB in the end (delta: 7.3MB). 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: 599.9s, 325 PlacesBefore, 28 PlacesAfterwards, 329 TransitionsBefore, 22 TransitionsAfterwards, 7758 CoEnabledTransitionPairs, 10 FixpointIterations, 205 TrivialSequentialCompositions, 123 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 26 ConcurrentYvCompositions, 10 ChoiceCompositions, 378 TotalNumberOfCompositions, 8458 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7172, independent: 7052, independent conditional: 0, independent unconditional: 7052, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 38, unknown conditional: 0, unknown unconditional: 38] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5471, independent: 5419, independent conditional: 0, independent unconditional: 5419, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5471, independent: 5403, independent conditional: 0, independent unconditional: 5403, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28648, independent: 333, independent conditional: 0, independent unconditional: 333, dependent: 468, dependent conditional: 0, dependent unconditional: 468, unknown: 27847, unknown conditional: 0, unknown unconditional: 27847] ], Cache Queries: [ total: 7172, independent: 1633, independent conditional: 0, independent unconditional: 1633, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 5495, unknown conditional: 0, unknown unconditional: 5495] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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 FALSE 0 !(nvram_len < 0) [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))=-1, pthread_t_nvram_llseek={11:0}, pthread_t_nvram_unlocked_ioctl={10:0}, whoop_buf={-18:0}, whoop_cx_dev={-5:0}, whoop_file_0={-4:0}, whoop_file_1={-7:0}, whoop_file_2={-2:0}, whoop_file_3={-12:0}, whoop_file_4={-10:0}, whoop_inode_0={-13:0}, whoop_inode_1={-9:0}, whoop_inode_2={-6:0}, whoop_inode_3={-16:0}, whoop_inode_4={-14:0}, whoop_int=1, whoop_loff_t={-11:0}, whoop_pci_dev={-17:0}, whoop_platform_device={-15:0}, whoop_poll_table={-8:0}, whoop_vm_area_struct={-3:0}] [L6862] FCALL, FORK 0 pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0)) VAL [={-1:4}, ={-1:5}, _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))=0, pthread_t_nvram_llseek={11:0}, pthread_t_nvram_unlocked_ioctl={10:0}, whoop_buf={-18:0}, whoop_cx_dev={-5:0}, whoop_file_0={-4:0}, whoop_file_1={-7:0}, whoop_file_2={-2:0}, whoop_file_3={-12:0}, whoop_file_4={-10:0}, whoop_inode_0={-13:0}, whoop_inode_1={-9:0}, whoop_inode_2={-6:0}, whoop_inode_3={-16:0}, whoop_inode_4={-14:0}, whoop_int=1, whoop_loff_t={-11:0}, whoop_pci_dev={-17:0}, whoop_platform_device={-15:0}, whoop_poll_table={-8:0}, whoop_vm_area_struct={-3:0}] [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={-12:0}, file={-12:0}, 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={-5:0}, whoop_file_0={-4:0}, whoop_file_1={-7:0}, whoop_file_2={-2:0}, whoop_file_3={-12:0}, whoop_file_4={-10:0}, whoop_inode_0={-13:0}, whoop_inode_1={-9:0}, whoop_inode_2={-6:0}, whoop_inode_3={-16:0}, whoop_inode_4={-14:0}, whoop_int=1, whoop_loff_t={-11:0}, whoop_pci_dev={-17:0}, whoop_platform_device={-15:0}, whoop_poll_table={-8:0}, whoop_vm_area_struct={-3:0}] - 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: 600.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 600.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-12-14 11:06:02,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081590b2-8203-42ca-8cc0-78c3bb509973/bin/utaipan-gh47qXpMRh/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)