./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.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_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/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_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/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_09d3706b-ee64-4231-a63c-6fe6f1c9df00/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 b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 --- 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 06:39:58,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:39:58,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:39:58,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:39:58,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:39:58,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:39:58,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:39:58,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:39:58,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:39:58,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:39:58,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:39:58,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:39:58,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:39:58,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:39:58,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:39:58,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:39:58,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:39:58,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:39:58,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:39:58,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:39:58,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:39:58,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:39:58,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:39:58,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:39:58,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:39:58,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:39:58,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:39:58,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:39:58,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:39:58,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:39:58,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:39:58,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:39:58,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:39:58,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:39:58,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:39:58,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:39:58,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:39:58,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:39:58,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:39:58,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:39:58,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:39:58,531 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 06:39:58,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:39:58,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:39:58,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:39:58,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:39:58,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:39:58,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:39:58,550 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:39:58,550 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:39:58,551 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:39:58,551 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:39:58,551 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:39:58,551 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:39:58,551 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:39:58,551 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:39:58,551 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:39:58,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:39:58,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:39:58,552 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:39:58,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:39:58,553 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:39:58,553 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:39:58,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:39:58,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:39:58,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:39:58,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:39:58,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:39:58,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:39:58,554 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:39:58,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:39:58,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:39:58,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:39:58,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:39:58,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:39:58,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:39:58,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:39:58,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:39:58,556 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:39:58,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:39:58,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:39:58,556 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:39:58,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:39:58,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:39:58,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:39:58,557 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_09d3706b-ee64-4231-a63c-6fe6f1c9df00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 [2022-12-14 06:39:58,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:39:58,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:39:58,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:39:58,737 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:39:58,737 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:39:58,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-14 06:40:01,263 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:40:01,631 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:40:01,631 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-14 06:40:01,656 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/data/1efba1d44/f4ad5891cf144d5abb01cd3cd82a3444/FLAG35a1a9082 [2022-12-14 06:40:01,817 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/data/1efba1d44/f4ad5891cf144d5abb01cd3cd82a3444 [2022-12-14 06:40:01,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:40:01,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:40:01,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:40:01,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:40:01,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:40:01,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:40:01" (1/1) ... [2022-12-14 06:40:01,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366157b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:01, skipping insertion in model container [2022-12-14 06:40:01,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:40:01" (1/1) ... [2022-12-14 06:40:01,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:40:02,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:40:02,264 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_09d3706b-ee64-4231-a63c-6fe6f1c9df00/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-12-14 06:40:02,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,613 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:02,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:02,980 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-14 06:40:02,983 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 06:40:02,985 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 06:40:02,991 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 06:40:03,070 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 06:40:03,074 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 06:40:03,165 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-14 06:40:03,332 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 06:40:03,338 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 06:40:03,394 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-14 06:40:03,397 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-14 06:40:03,616 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-14 06:40:03,619 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-14 06:40:03,622 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-14 06:40:03,704 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 06:40:03,704 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 06:40:03,707 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-14 06:40:03,707 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 06:40:03,830 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-14 06:40:03,855 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 06:40:03,981 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-14 06:40:03,984 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 06:40:04,117 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 06:40:04,280 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-14 06:40:04,281 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-14 06:40:04,281 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-14 06:40:05,073 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-14 06:40:05,073 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 06:40:05,077 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 06:40:05,080 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 06:40:05,082 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 06:40:05,566 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-14 06:40:05,570 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-14 06:40:05,574 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-14 06:40:05,581 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 06:40:05,581 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-14 06:40:05,584 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 06:40:05,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:40:05,614 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:40:05,624 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_09d3706b-ee64-4231-a63c-6fe6f1c9df00/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-12-14 06:40:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:40:05,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:40:05,650 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-14 06:40:05,651 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 06:40:05,651 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 06:40:05,651 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 06:40:05,655 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 06:40:05,655 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 06:40:05,658 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-14 06:40:05,666 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 06:40:05,667 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 06:40:05,669 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-14 06:40:05,669 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-14 06:40:05,675 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-14 06:40:05,676 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-14 06:40:05,676 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-14 06:40:05,678 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 06:40:05,679 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 06:40:05,679 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-14 06:40:05,679 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 06:40:05,687 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-14 06:40:05,688 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 06:40:05,692 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-14 06:40:05,693 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 06:40:05,696 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 06:40:05,699 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-14 06:40:05,699 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-14 06:40:05,699 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-14 06:40:05,802 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-14 06:40:05,803 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 06:40:05,805 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 06:40:05,807 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 06:40:05,809 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 06:40:05,852 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-14 06:40:05,853 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-14 06:40:05,854 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-14 06:40:05,855 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 06:40:05,855 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-14 06:40:05,856 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 06:40:05,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:40:06,361 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:40:06,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06 WrapperNode [2022-12-14 06:40:06,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:40:06,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:40:06,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:40:06,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:40:06,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,469 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 318 [2022-12-14 06:40:06,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:40:06,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:40:06,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:40:06,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:40:06,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:40:06,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:40:06,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:40:06,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:40:06,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (1/1) ... [2022-12-14 06:40:06,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:40:06,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:40:06,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:40:06,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:40:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:40:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:40:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:40:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:40:06,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:40:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 06:40:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:40:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:40:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:40:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:40:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-14 06:40:06,581 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-14 06:40:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:40:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-14 06:40:06,581 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-14 06:40:06,582 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 06:40:06,895 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:40:06,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:40:07,229 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:40:07,237 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:40:07,237 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:40:07,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:07 BoogieIcfgContainer [2022-12-14 06:40:07,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:40:07,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:40:07,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:40:07,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:40:07,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:40:01" (1/3) ... [2022-12-14 06:40:07,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d738c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:40:07, skipping insertion in model container [2022-12-14 06:40:07,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:06" (2/3) ... [2022-12-14 06:40:07,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d738c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:40:07, skipping insertion in model container [2022-12-14 06:40:07,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:07" (3/3) ... [2022-12-14 06:40:07,245 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-14 06:40:07,251 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 06:40:07,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:40:07,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 06:40:07,259 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 06:40:07,319 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 06:40:07,346 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 06:40:07,356 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 373 transitions, 762 flow [2022-12-14 06:40:07,358 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 373 transitions, 762 flow [2022-12-14 06:40:07,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 365 places, 373 transitions, 762 flow [2022-12-14 06:40:07,446 INFO L130 PetriNetUnfolder]: 15/371 cut-off events. [2022-12-14 06:40:07,447 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 06:40:07,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 371 events. 15/371 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 381 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 297. Up to 5 conditions per place. [2022-12-14 06:40:07,469 INFO L119 LiptonReduction]: Number of co-enabled transitions 13830 [2022-12-14 06:41:15,019 WARN L233 SmtUtils]: Spent 16.73s 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 06:41:29,135 WARN L233 SmtUtils]: Spent 14.10s 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 06:42:14,348 WARN L233 SmtUtils]: Spent 45.21s on a formula simplification. DAG size of input: 490 DAG size of output: 488 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:42:32,272 WARN L233 SmtUtils]: Spent 17.91s 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 06:44:13,960 WARN L233 SmtUtils]: Spent 1.69m on a formula simplification. DAG size of input: 524 DAG size of output: 517 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:45:19,089 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 503 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:47:43,647 WARN L233 SmtUtils]: Spent 2.41m 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 06:48:48,238 WARN L233 SmtUtils]: Spent 1.08m 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 06:48:48,240 INFO L134 LiptonReduction]: Checked pairs total: 14964 [2022-12-14 06:48:48,240 INFO L136 LiptonReduction]: Total number of compositions: 428 [2022-12-14 06:48:48,245 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 70 flow [2022-12-14 06:48:48,258 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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 06:48:48,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:48:48,273 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;@4ff4aa2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:48:48,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 06:48:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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 06:48:48,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:48:48,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:48:48,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:48:48,279 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)] === [2022-12-14 06:48:48,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:48:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1350782185, now seen corresponding path program 1 times [2022-12-14 06:48:48,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:48:48,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858812704] [2022-12-14 06:48:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:48,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:48:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:48:48,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:48:48,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:48:48,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858812704] [2022-12-14 06:48:48,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858812704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:48:48,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:48:48,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:48:48,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259574492] [2022-12-14 06:48:48,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:48:48,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:48:48,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:48:48,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:48:48,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:48:48,884 INFO L87 Difference]: Start difference. First operand has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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) [2022-12-14 06:48:49,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:48:49,070 INFO L93 Difference]: Finished difference Result 60 states and 146 transitions. [2022-12-14 06:48:49,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:48:49,072 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 [2022-12-14 06:48:49,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:48:49,078 INFO L225 Difference]: With dead ends: 60 [2022-12-14 06:48:49,079 INFO L226 Difference]: Without dead ends: 60 [2022-12-14 06:48:49,079 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 [2022-12-14 06:48:49,081 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:48:49,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:48:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-12-14 06:48:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-12-14 06:48:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 2.56140350877193) internal successors, (146), 59 states have internal predecessors, (146), 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 06:48:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 146 transitions. [2022-12-14 06:48:49,107 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 146 transitions. Word has length 5 [2022-12-14 06:48:49,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:48:49,107 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 146 transitions. [2022-12-14 06:48:49,108 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) [2022-12-14 06:48:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 146 transitions. [2022-12-14 06:48:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:48:49,108 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:48:49,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:48:49,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:48:49,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-14 06:48:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:48:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1350782186, now seen corresponding path program 1 times [2022-12-14 06:48:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:48:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784084521] [2022-12-14 06:48:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:48:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:48:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:48:49,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:48:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:48:49,246 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:48:49,246 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:48:49,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-14 06:48:49,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-12-14 06:48:49,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-12-14 06:48:49,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-14 06:48:49,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-12-14 06:48:49,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-12-14 06:48:49,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-14 06:48:49,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-14 06:48:49,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-14 06:48:49,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-14 06:48:49,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:48:49,252 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 06:48:49,256 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 06:48:49,256 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:48:49,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:48:49 BasicIcfg [2022-12-14 06:48:49,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:48:49,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:48:49,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:48:49,289 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:48:49,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:07" (3/4) ... [2022-12-14 06:48:49,291 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 06:48:49,338 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:48:49,338 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:48:49,339 INFO L158 Benchmark]: Toolchain (without parser) took 527517.89ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 57.9MB in the beginning and 76.7MB in the end (delta: -18.9MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2022-12-14 06:48:49,339 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:48:49,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4539.65ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 57.5MB in the beginning and 93.6MB in the end (delta: -36.1MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2022-12-14 06:48:49,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.91ms. Allocated memory is still 176.2MB. Free memory was 93.6MB in the beginning and 84.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 06:48:49,340 INFO L158 Benchmark]: Boogie Preprocessor took 44.25ms. Allocated memory is still 176.2MB. Free memory was 84.2MB in the beginning and 80.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:48:49,340 INFO L158 Benchmark]: RCFGBuilder took 723.96ms. Allocated memory is still 176.2MB. Free memory was 80.0MB in the beginning and 97.7MB in the end (delta: -17.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-12-14 06:48:49,340 INFO L158 Benchmark]: TraceAbstraction took 522047.42ms. Allocated memory is still 176.2MB. Free memory was 96.7MB in the beginning and 85.1MB in the end (delta: 11.6MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2022-12-14 06:48:49,340 INFO L158 Benchmark]: Witness Printer took 49.94ms. Allocated memory is still 176.2MB. Free memory was 85.1MB in the beginning and 76.7MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 06:48:49,341 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 117.4MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4539.65ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 57.5MB in the beginning and 93.6MB in the end (delta: -36.1MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.91ms. Allocated memory is still 176.2MB. Free memory was 93.6MB in the beginning and 84.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.25ms. Allocated memory is still 176.2MB. Free memory was 84.2MB in the beginning and 80.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 723.96ms. Allocated memory is still 176.2MB. Free memory was 80.0MB in the beginning and 97.7MB in the end (delta: -17.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 522047.42ms. Allocated memory is still 176.2MB. Free memory was 96.7MB in the beginning and 85.1MB in the end (delta: 11.6MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Witness Printer took 49.94ms. Allocated memory is still 176.2MB. Free memory was 85.1MB in the beginning and 76.7MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. 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: 520.9s, 365 PlacesBefore, 30 PlacesAfterwards, 373 TransitionsBefore, 27 TransitionsAfterwards, 13830 CoEnabledTransitionPairs, 10 FixpointIterations, 207 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 32 ConcurrentYvCompositions, 11 ChoiceCompositions, 428 TotalNumberOfCompositions, 14964 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13071, independent: 12929, independent conditional: 0, independent unconditional: 12929, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10250, independent: 10207, independent conditional: 0, independent unconditional: 10207, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10250, independent: 10187, independent conditional: 0, independent unconditional: 10187, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4416, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 4237, unknown conditional: 0, unknown unconditional: 4237] ], Cache Queries: [ total: 13071, independent: 2722, independent conditional: 0, independent unconditional: 2722, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 10257, unknown conditional: 0, unknown unconditional: 10257] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - 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 TRUE 0 ret != 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_write_nvram; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=-10, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0))=0, pthread_t_nvram_llseek={11:0}, pthread_t_write_nvram={10:0}, whoop_buf={-4:0}, whoop_cx_dev={-11:0}, whoop_file_0={-5:0}, whoop_file_1={-19:0}, whoop_file_2={-6:0}, whoop_file_3={-3:0}, whoop_file_4={-9:0}, whoop_inode_0={-2:0}, whoop_inode_1={-7:0}, whoop_inode_2={-16:0}, whoop_inode_3={-18:0}, whoop_inode_4={-14:0}, whoop_int=1, whoop_loff_t={-15:0}, whoop_pci_dev={-8:0}, whoop_platform_device={-20:0}, whoop_poll_table={-12:0}, whoop_vm_area_struct={-17:0}] [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=-10, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0))=1, pthread_t_nvram_llseek={11:0}, pthread_t_write_nvram={10:0}, whoop_buf={-4:0}, whoop_cx_dev={-11:0}, whoop_file_0={-5:0}, whoop_file_1={-19:0}, whoop_file_2={-6:0}, whoop_file_3={-3:0}, whoop_file_4={-9:0}, whoop_inode_0={-2:0}, whoop_inode_1={-7:0}, whoop_inode_2={-16:0}, whoop_inode_3={-18:0}, whoop_inode_4={-14:0}, whoop_int=1, whoop_loff_t={-15:0}, whoop_pci_dev={-8:0}, whoop_platform_device={-20:0}, whoop_poll_table={-12:0}, whoop_vm_area_struct={-17:0}] [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 [={-1:4}, ={-1:5}, \old(offset)=0, \old(origin)=1, default_alloc_size=4, file={-3:0}, file={-3:0}, file->f_pos=-9223372036854775809, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-4:0}, whoop_cx_dev={-11:0}, whoop_file_0={-5:0}, whoop_file_1={-19:0}, whoop_file_2={-6:0}, whoop_file_3={-3:0}, whoop_file_4={-9:0}, whoop_inode_0={-2:0}, whoop_inode_1={-7:0}, whoop_inode_2={-16:0}, whoop_inode_3={-18:0}, whoop_inode_4={-14:0}, whoop_int=1, whoop_loff_t={-15:0}, whoop_pci_dev={-8:0}, whoop_platform_device={-20:0}, whoop_poll_table={-12:0}, whoop_vm_area_struct={-17:0}] - 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, 506 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 521.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 520.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 17 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=72occurred 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s 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! [2022-12-14 06:48:49,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09d3706b-ee64-4231-a63c-6fe6f1c9df00/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)