./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/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_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/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_040d0410-4a3a-436a-8550-7c4a583e5b9d/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 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 --- 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 15:47:10,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:47:10,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:47:10,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:47:10,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:47:10,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:47:10,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:47:10,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:47:10,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:47:10,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:47:10,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:47:10,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:47:10,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:47:10,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:47:10,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:47:10,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:47:10,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:47:10,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:47:10,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:47:10,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:47:10,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:47:10,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:47:10,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:47:10,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:47:10,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:47:10,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:47:10,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:47:10,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:47:10,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:47:10,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:47:10,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:47:10,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:47:10,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:47:10,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:47:10,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:47:10,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:47:10,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:47:10,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:47:10,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:47:10,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:47:10,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:47:10,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 15:47:10,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:47:10,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:47:10,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:47:10,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:47:10,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:47:10,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:47:10,324 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:47:10,324 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:47:10,324 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:47:10,324 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:47:10,325 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:47:10,325 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:47:10,325 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:47:10,325 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:47:10,326 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:47:10,326 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:47:10,326 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:47:10,326 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:47:10,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:47:10,327 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:47:10,327 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:47:10,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:47:10,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:47:10,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:47:10,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:47:10,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:47:10,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:47:10,329 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:47:10,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:47:10,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:47:10,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:47:10,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:47:10,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:47:10,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:47:10,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:47:10,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:47:10,330 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:47:10,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:47:10,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:47:10,331 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:47:10,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:47:10,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:47:10,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:47:10,332 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_040d0410-4a3a-436a-8550-7c4a583e5b9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 [2022-12-14 15:47:10,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:47:10,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:47:10,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:47:10,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:47:10,543 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:47:10,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-14 15:47:13,057 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:47:13,376 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:47:13,376 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-14 15:47:13,401 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/data/a2145057a/c92ebcecbd6b45119506d63c6a4232f7/FLAG585698e83 [2022-12-14 15:47:13,627 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/data/a2145057a/c92ebcecbd6b45119506d63c6a4232f7 [2022-12-14 15:47:13,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:47:13,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:47:13,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:47:13,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:47:13,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:47:13,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:47:13" (1/1) ... [2022-12-14 15:47:13,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358a21dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:13, skipping insertion in model container [2022-12-14 15:47:13,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:47:13" (1/1) ... [2022-12-14 15:47:13,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:47:13,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:47:14,043 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_040d0410-4a3a-436a-8550-7c4a583e5b9d/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-12-14 15:47:14,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:14,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:14,923 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-14 15:47:14,927 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 15:47:14,930 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 15:47:14,937 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 15:47:15,024 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 15:47:15,029 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 15:47:15,144 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-14 15:47:15,335 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 15:47:15,342 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 15:47:15,398 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-14 15:47:15,401 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-14 15:47:15,645 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-14 15:47:15,648 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-14 15:47:15,650 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-14 15:47:15,722 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 15:47:15,723 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 15:47:15,725 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-14 15:47:15,725 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 15:47:15,844 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-14 15:47:15,872 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 15:47:16,011 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-14 15:47:16,014 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 15:47:16,157 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 15:47:16,306 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-14 15:47:16,306 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-14 15:47:16,306 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-14 15:47:17,089 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-14 15:47:17,089 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 15:47:17,092 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 15:47:17,095 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 15:47:17,098 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 15:47:17,561 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-14 15:47:17,564 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-14 15:47:17,568 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-14 15:47:17,575 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 15:47:17,575 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-14 15:47:17,578 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 15:47:17,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:47:17,606 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:47:17,616 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_040d0410-4a3a-436a-8550-7c4a583e5b9d/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-12-14 15:47:17,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:47:17,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:47:17,640 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-14 15:47:17,641 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 15:47:17,641 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 15:47:17,641 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 15:47:17,644 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 15:47:17,645 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 15:47:17,647 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-14 15:47:17,655 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 15:47:17,656 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 15:47:17,657 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-14 15:47:17,658 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-14 15:47:17,664 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-14 15:47:17,664 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-14 15:47:17,664 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-14 15:47:17,667 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 15:47:17,667 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 15:47:17,667 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-14 15:47:17,667 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 15:47:17,673 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-14 15:47:17,675 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 15:47:17,678 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-14 15:47:17,679 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 15:47:17,682 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 15:47:17,685 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-14 15:47:17,685 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-14 15:47:17,685 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-14 15:47:17,756 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-14 15:47:17,757 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 15:47:17,758 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 15:47:17,761 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 15:47:17,762 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 15:47:17,808 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-14 15:47:17,809 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-14 15:47:17,810 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-14 15:47:17,811 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 15:47:17,811 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-14 15:47:17,811 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 15:47:17,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:47:18,267 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:47:18,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18 WrapperNode [2022-12-14 15:47:18,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:47:18,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:47:18,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:47:18,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:47:18,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,378 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 318 [2022-12-14 15:47:18,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:47:18,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:47:18,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:47:18,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:47:18,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,416 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:47:18,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:47:18,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:47:18,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:47:18,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (1/1) ... [2022-12-14 15:47:18,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:47:18,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:47:18,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:47:18,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:47:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:47:18,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-14 15:47:18,490 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:47:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:47:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:47:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-14 15:47:18,491 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-14 15:47:18,492 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 15:47:18,791 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:47:18,792 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:47:19,129 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:47:19,138 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:47:19,138 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:47:19,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:47:19 BoogieIcfgContainer [2022-12-14 15:47:19,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:47:19,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:47:19,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:47:19,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:47:19,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:47:13" (1/3) ... [2022-12-14 15:47:19,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106db58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:47:19, skipping insertion in model container [2022-12-14 15:47:19,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:47:18" (2/3) ... [2022-12-14 15:47:19,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106db58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:47:19, skipping insertion in model container [2022-12-14 15:47:19,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:47:19" (3/3) ... [2022-12-14 15:47:19,146 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-14 15:47:19,152 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 15:47:19,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:47:19,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 15:47:19,160 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 15:47:19,235 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 15:47:19,265 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 15:47:19,278 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 367 places, 375 transitions, 766 flow [2022-12-14 15:47:19,280 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 367 places, 375 transitions, 766 flow [2022-12-14 15:47:19,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 375 transitions, 766 flow [2022-12-14 15:47:19,389 INFO L130 PetriNetUnfolder]: 15/373 cut-off events. [2022-12-14 15:47:19,389 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 15:47:19,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 373 events. 15/373 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 403 event pairs, 0 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 299. Up to 5 conditions per place. [2022-12-14 15:47:19,402 INFO L119 LiptonReduction]: Number of co-enabled transitions 14106 [2022-12-14 15:48:20,135 WARN L233 SmtUtils]: Spent 23.09s on a formula simplification that was a NOOP. DAG size: 474 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:48:32,422 WARN L233 SmtUtils]: Spent 12.27s on a formula simplification that was a NOOP. DAG size: 400 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:48:57,328 WARN L233 SmtUtils]: Spent 24.90s on a formula simplification that was a NOOP. DAG size: 474 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:49:16,337 WARN L233 SmtUtils]: Spent 19.00s on a formula simplification that was a NOOP. DAG size: 400 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:51:19,509 WARN L233 SmtUtils]: Spent 2.04m on a formula simplification. DAG size of input: 513 DAG size of output: 507 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:52:23,911 WARN L233 SmtUtils]: Spent 1.07m on a formula simplification that was a NOOP. DAG size: 495 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:54:15,396 WARN L233 SmtUtils]: Spent 1.86m on a formula simplification. DAG size of input: 520 DAG size of output: 514 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:55:13,402 WARN L233 SmtUtils]: Spent 58.00s on a formula simplification that was a NOOP. DAG size: 502 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:56:42,355 WARN L233 SmtUtils]: Spent 1.46m on a formula simplification. DAG size of input: 498 DAG size of output: 492 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:57:25,511 WARN L233 SmtUtils]: Spent 43.15s on a formula simplification that was a NOOP. DAG size: 480 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:58:56,727 WARN L233 SmtUtils]: Spent 1.52m on a formula simplification. DAG size of input: 501 DAG size of output: 495 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:59:24,717 WARN L233 SmtUtils]: Spent 27.98s on a formula simplification that was a NOOP. DAG size: 483 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:59:24,732 INFO L134 LiptonReduction]: Checked pairs total: 16173 [2022-12-14 15:59:24,732 INFO L136 LiptonReduction]: Total number of compositions: 448 [2022-12-14 15:59:24,739 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 70 flow [2022-12-14 15:59:24,757 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 15:59:24,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:59:24,773 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;@6f0e15cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:59:24,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 15:59:24,775 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 15:59:24,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 15:59:24,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:24,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 15:59:24,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-14 15:59:24,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1374911223, now seen corresponding path program 1 times [2022-12-14 15:59:24,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:24,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541547306] [2022-12-14 15:59:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:24,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:59:25,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:59:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:59:26,114 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:59:26,116 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:59:26,117 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-14 15:59:26,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-12-14 15:59:26,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-12-14 15:59:26,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-14 15:59:26,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-12-14 15:59:26,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-12-14 15:59:26,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-14 15:59:26,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-14 15:59:26,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-14 15:59:26,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-14 15:59:26,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:59:26,123 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 15:59:26,130 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 15:59:26,130 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:59:26,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:59:26 BasicIcfg [2022-12-14 15:59:26,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:59:26,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:59:26,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:59:26,172 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:59:26,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:47:19" (3/4) ... [2022-12-14 15:59:26,174 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 15:59:26,236 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:59:26,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:59:26,237 INFO L158 Benchmark]: Toolchain (without parser) took 732606.32ms. Allocated memory was 117.4MB in the beginning and 186.6MB in the end (delta: 69.2MB). Free memory was 70.0MB in the beginning and 100.5MB in the end (delta: -30.4MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. [2022-12-14 15:59:26,238 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:59:26,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4635.64ms. Allocated memory was 117.4MB in the beginning and 186.6MB in the end (delta: 69.2MB). Free memory was 70.0MB in the beginning and 112.2MB in the end (delta: -42.1MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2022-12-14 15:59:26,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.28ms. Allocated memory is still 186.6MB. Free memory was 112.2MB in the beginning and 102.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 15:59:26,239 INFO L158 Benchmark]: Boogie Preprocessor took 45.76ms. Allocated memory is still 186.6MB. Free memory was 102.7MB in the beginning and 98.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 15:59:26,239 INFO L158 Benchmark]: RCFGBuilder took 714.37ms. Allocated memory is still 186.6MB. Free memory was 98.5MB in the beginning and 117.8MB in the end (delta: -19.2MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2022-12-14 15:59:26,239 INFO L158 Benchmark]: TraceAbstraction took 727029.87ms. Allocated memory is still 186.6MB. Free memory was 116.7MB in the beginning and 33.1MB in the end (delta: 83.7MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2022-12-14 15:59:26,239 INFO L158 Benchmark]: Witness Printer took 64.61ms. Allocated memory is still 186.6MB. Free memory was 33.1MB in the beginning and 100.5MB in the end (delta: -67.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-14 15:59:26,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4635.64ms. Allocated memory was 117.4MB in the beginning and 186.6MB in the end (delta: 69.2MB). Free memory was 70.0MB in the beginning and 112.2MB in the end (delta: -42.1MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.28ms. Allocated memory is still 186.6MB. Free memory was 112.2MB in the beginning and 102.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.76ms. Allocated memory is still 186.6MB. Free memory was 102.7MB in the beginning and 98.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 714.37ms. Allocated memory is still 186.6MB. Free memory was 98.5MB in the beginning and 117.8MB in the end (delta: -19.2MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * TraceAbstraction took 727029.87ms. Allocated memory is still 186.6MB. Free memory was 116.7MB in the beginning and 33.1MB in the end (delta: 83.7MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. * Witness Printer took 64.61ms. Allocated memory is still 186.6MB. Free memory was 33.1MB in the beginning and 100.5MB in the end (delta: -67.4MB). Peak memory consumption was 5.0MB. 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: 725.5s, 367 PlacesBefore, 30 PlacesAfterwards, 375 TransitionsBefore, 27 TransitionsAfterwards, 14106 CoEnabledTransitionPairs, 10 FixpointIterations, 206 TrivialSequentialCompositions, 184 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 33 ConcurrentYvCompositions, 11 ChoiceCompositions, 448 TotalNumberOfCompositions, 16173 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13963, independent: 13826, independent conditional: 0, independent unconditional: 13826, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10245, independent: 10202, independent conditional: 0, independent unconditional: 10202, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10245, independent: 10189, independent conditional: 0, independent unconditional: 10189, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2315, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 2137, unknown conditional: 0, unknown unconditional: 2137] ], Cache Queries: [ total: 13963, independent: 3624, independent conditional: 0, independent unconditional: 3624, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 10246, unknown conditional: 0, unknown unconditional: 10246] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 101, Positive conditional cache size: 0, Positive unconditional cache size: 101, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 6694]: integer overflow possible integer overflow possible We found a FailurePath: [L246] 0 unsigned long jiffies; [L6519] 0 const unsigned int default_alloc_size = 4; [L6686] 0 static struct mutex nvram_mutex = { 1, 0 }; [L6687] 0 static ssize_t nvram_len; [L6762-L6768] 0 struct file_operations nvram_fops = { .owner = ((struct module *)0), .llseek = nvram_llseek, .read = read_nvram, .write = write_nvram, .unlocked_ioctl = nvram_unlocked_ioctl, }; [L6769-L6773] 0 static struct miscdevice nvram_dev = { 144, "nvram", &nvram_fops }; [L6792] 0 int (* _whoop_init)(void) = nvram_init; [L6793] 0 void (* _whoop_exit)(void) = nvram_cleanup; [L6794] 0 struct inode *whoop_inode_0; [L6795] 0 struct file *whoop_file_0; [L6796] 0 struct inode *whoop_inode_1; [L6797] 0 struct file *whoop_file_1; [L6798] 0 struct inode *whoop_inode_2; [L6799] 0 struct file *whoop_file_2; [L6800] 0 struct inode *whoop_inode_3; [L6801] 0 struct file *whoop_file_3; [L6802] 0 struct inode *whoop_inode_4; [L6803] 0 struct file *whoop_file_4; [L6804] 0 struct pci_dev *whoop_pci_dev; [L6805] 0 char *whoop_buf; [L6806] 0 struct platform_device *whoop_platform_device; [L6807] 0 struct vm_area_struct *whoop_vm_area_struct; [L6808] 0 struct cx_dev *whoop_cx_dev; [L6809] 0 poll_table *whoop_poll_table; [L6810] 0 loff_t *whoop_loff_t; [L6811] 0 int whoop_int; [L6839] 0 whoop_inode_0 = (struct inode *) malloc(sizeof(struct inode)) [L6840] 0 whoop_file_0 = (struct file *) malloc(sizeof(struct file)) [L6841] 0 whoop_inode_1 = (struct inode *) malloc(sizeof(struct inode)) [L6842] 0 whoop_file_1 = (struct file *) malloc(sizeof(struct file)) [L6843] 0 whoop_inode_2 = (struct inode *) malloc(sizeof(struct inode)) [L6844] 0 whoop_file_2 = (struct file *) malloc(sizeof(struct file)) [L6845] 0 whoop_inode_3 = (struct inode *) malloc(sizeof(struct inode)) [L6846] 0 whoop_file_3 = (struct file *) malloc(sizeof(struct file)) [L6847] 0 whoop_inode_4 = (struct inode *) malloc(sizeof(struct inode)) [L6848] 0 whoop_file_4 = (struct file *) malloc(sizeof(struct file)) [L6849] 0 whoop_pci_dev = (struct pci_dev *) malloc(sizeof(struct pci_dev)) [L6850] 0 whoop_buf = (char *) malloc(sizeof(char)) [L6851] 0 whoop_platform_device = (struct platform_device *) malloc(sizeof(struct platform_device)) [L6852] 0 whoop_vm_area_struct = (struct vm_area_struct *) malloc(sizeof(struct vm_area_struct)) [L6853] 0 whoop_cx_dev = (struct cx_dev *) malloc(sizeof(struct cx_dev)) [L6854] 0 whoop_poll_table = (poll_table *) malloc(sizeof(poll_table)) [L6855] 0 whoop_loff_t = (loff_t *) malloc(sizeof(loff_t)) [L6856] 0 whoop_int = __VERIFIER_nondet_int() [L6857] CALL 0 assume_abort_if_not(whoop_int >= 0) [L170] COND FALSE 0 !(!cond) [L6857] RET 0 assume_abort_if_not(whoop_int >= 0) [L6858] CALL, EXPR 0 _whoop_init() [L6776] 0 int ret = 0; [L6777-L6778] CALL 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6647] 0 return __VERIFIER_nondet_int(); [L6777-L6778] RET 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6779] CALL, EXPR 0 misc_register(&nvram_dev) [L6621] 0 return __VERIFIER_nondet_int(); [L6779] RET, EXPR 0 misc_register(&nvram_dev) [L6779] 0 ret = misc_register(&nvram_dev) [L6780] COND FALSE 0 !(ret != 0) [L6782] CALL, EXPR 0 nvram_get_size() [L6629] 0 return __VERIFIER_nondet_long(); [L6782] RET, EXPR 0 nvram_get_size() [L6782] 0 nvram_len = nvram_get_size() [L6783] COND TRUE 0 nvram_len < 0 [L6784] 0 nvram_len = 8192 [L6786] 0 return ret; [L6858] RET, EXPR 0 _whoop_init() [L6858] 0 int _whoop_init_result = _whoop_init(); [L6859] 0 pthread_t pthread_t_read_nvram; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((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_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((void *)0))=-1, pthread_t_nvram_llseek={14:0}, pthread_t_read_nvram={13:0}, whoop_buf={-8:0}, whoop_cx_dev={-3:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-7:0}, whoop_file_3={-10:0}, whoop_file_4={-13:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-11:0}, whoop_inode_3={11:0}, whoop_inode_4={-16:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={10:0}, whoop_platform_device={-2:0}, whoop_poll_table={-12:0}, whoop_vm_area_struct={-5:0}] [L6862] FCALL, FORK 0 pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0))=0, pthread_t_nvram_llseek={14:0}, pthread_t_read_nvram={13:0}, whoop_buf={-8:0}, whoop_cx_dev={-3:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-7:0}, whoop_file_3={-10:0}, whoop_file_4={-13:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-11:0}, whoop_inode_3={11:0}, whoop_inode_4={-16:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={10:0}, whoop_platform_device={-2:0}, whoop_poll_table={-12:0}, whoop_vm_area_struct={-5:0}] [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={-10:0}, file={-10:0}, file->f_pos=-9223372036854775809, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-8:0}, whoop_cx_dev={-3:0}, whoop_file_0={-14:0}, whoop_file_1={-15:0}, whoop_file_2={-7:0}, whoop_file_3={-10:0}, whoop_file_4={-13:0}, whoop_inode_0={-4:0}, whoop_inode_1={-9:0}, whoop_inode_2={-11:0}, whoop_inode_3={11:0}, whoop_inode_4={-16:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={10:0}, whoop_platform_device={-2:0}, whoop_poll_table={-12:0}, whoop_vm_area_struct={-5:0}] - 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, 510 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 726.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 725.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred 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, 1.1s 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 15:59:26,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_040d0410-4a3a-436a-8550-7c4a583e5b9d/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)