./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/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_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-26 00:35:57,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:35:57,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:35:57,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:35:57,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:35:57,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:35:57,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:35:57,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:35:57,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:35:57,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:35:57,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:35:57,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:35:57,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:35:57,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:35:57,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:35:57,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:35:57,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:35:57,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:35:57,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:35:57,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:35:57,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:35:57,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:35:57,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:35:57,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:35:57,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:35:57,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:35:57,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:35:57,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:35:57,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:35:57,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:35:57,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:35:57,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:35:57,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:35:57,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:35:57,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:35:57,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:35:57,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:35:57,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:35:57,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:35:57,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:35:57,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:35:57,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:35:57,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:35:57,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:35:57,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:35:57,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:35:57,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:35:57,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:35:57,421 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:35:57,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:35:57,421 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:35:57,422 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:35:57,423 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:35:57,423 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:35:57,423 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:35:57,423 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:35:57,424 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:35:57,424 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:35:57,424 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:35:57,424 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:35:57,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:35:57,426 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:35:57,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:35:57,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:35:57,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:35:57,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:35:57,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:35:57,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:35:57,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:35:57,428 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:35:57,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:35:57,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:35:57,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:35:57,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:35:57,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:35:57,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:35:57,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:57,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:35:57,432 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:35:57,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:35:57,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:35:57,432 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:35:57,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:35:57,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:35:57,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:35:57,433 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_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 [2022-11-26 00:35:57,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:35:57,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:35:57,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:35:57,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:35:57,813 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:35:57,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-26 00:36:00,853 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:36:01,474 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:36:01,474 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-26 00:36:01,530 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/data/51c64a8ab/e7fa9dfed76f4c28bf9d4249b08e21f3/FLAG9ae3d6c7c [2022-11-26 00:36:01,553 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/data/51c64a8ab/e7fa9dfed76f4c28bf9d4249b08e21f3 [2022-11-26 00:36:01,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:36:01,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:36:01,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:36:01,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:36:01,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:36:01,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:36:01" (1/1) ... [2022-11-26 00:36:01,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8472737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:01, skipping insertion in model container [2022-11-26 00:36:01,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:36:01" (1/1) ... [2022-11-26 00:36:01,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:36:01,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:36:02,125 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_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-11-26 00:36:02,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,685 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,685 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:02,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:02,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:03,218 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 00:36:03,223 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:36:03,228 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:36:03,236 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:36:03,355 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:36:03,361 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:36:03,513 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 00:36:03,781 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:36:03,791 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:36:03,881 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 00:36:03,886 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 00:36:04,280 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 00:36:04,284 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 00:36:04,288 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 00:36:04,408 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 00:36:04,408 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:36:04,412 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 00:36:04,412 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:36:04,643 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 00:36:04,691 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 00:36:04,914 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 00:36:04,919 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 00:36:05,200 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 00:36:05,469 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 00:36:05,470 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 00:36:05,470 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 00:36:06,917 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 00:36:06,918 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:36:06,922 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:36:06,926 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:36:06,930 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:36:07,676 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 00:36:07,683 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 00:36:07,700 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 00:36:07,711 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:36:07,712 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 00:36:07,716 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:36:07,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:36:07,772 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:36:07,800 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_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-11-26 00:36:07,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:36:07,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:36:07,860 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 00:36:07,862 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:36:07,862 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:36:07,863 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:36:07,872 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:36:07,873 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:36:07,876 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 00:36:07,891 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:36:07,892 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:36:07,895 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 00:36:07,896 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 00:36:07,908 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 00:36:07,908 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 00:36:07,909 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 00:36:07,913 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 00:36:07,913 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:36:07,914 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 00:36:07,914 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:36:07,924 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 00:36:07,927 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 00:36:07,932 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 00:36:07,933 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 00:36:07,937 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 00:36:07,942 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 00:36:07,942 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 00:36:07,943 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 00:36:08,117 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 00:36:08,118 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:36:08,121 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:36:08,132 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:36:08,136 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:36:08,184 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 00:36:08,186 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 00:36:08,187 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 00:36:08,189 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:36:08,189 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 00:36:08,190 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:36:08,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:36:08,746 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:36:08,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08 WrapperNode [2022-11-26 00:36:08,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:36:08,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:36:08,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:36:08,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:36:08,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:08,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:08,953 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 318 [2022-11-26 00:36:08,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:36:08,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:36:08,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:36:08,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:36:08,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:08,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:08,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:08,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:09,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:09,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:09,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:09,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:09,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:36:09,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:36:09,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:36:09,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:36:09,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (1/1) ... [2022-11-26 00:36:09,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:36:09,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:09,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:36:09,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:36:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:36:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:36:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:36:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:36:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-11-26 00:36:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-11-26 00:36:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:36:09,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:36:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:36:09,147 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-26 00:36:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-26 00:36:09,148 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:36:09,627 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:36:09,629 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:36:10,233 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:36:10,250 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:36:10,251 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:36:10,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:36:10 BoogieIcfgContainer [2022-11-26 00:36:10,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:36:10,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:36:10,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:36:10,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:36:10,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:36:01" (1/3) ... [2022-11-26 00:36:10,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb9301d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:36:10, skipping insertion in model container [2022-11-26 00:36:10,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:36:08" (2/3) ... [2022-11-26 00:36:10,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb9301d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:36:10, skipping insertion in model container [2022-11-26 00:36:10,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:36:10" (3/3) ... [2022-11-26 00:36:10,268 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-26 00:36:10,277 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:36:10,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:36:10,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:36:10,288 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:36:10,442 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 00:36:10,494 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:36:10,514 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 367 places, 375 transitions, 766 flow [2022-11-26 00:36:10,518 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 367 places, 375 transitions, 766 flow [2022-11-26 00:36:10,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 375 transitions, 766 flow [2022-11-26 00:36:10,691 INFO L130 PetriNetUnfolder]: 15/373 cut-off events. [2022-11-26 00:36:10,692 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 00:36:10,700 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 404 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. [2022-11-26 00:36:10,709 INFO L119 LiptonReduction]: Number of co-enabled transitions 14106 [2022-11-26 00:37:53,996 WARN L233 SmtUtils]: Spent 40.60s on a formula simplification that was a NOOP. DAG size: 496 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:38:22,132 WARN L233 SmtUtils]: Spent 28.11s on a formula simplification that was a NOOP. DAG size: 426 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:38:51,935 WARN L233 SmtUtils]: Spent 29.80s on a formula simplification that was a NOOP. DAG size: 499 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:39:16,917 WARN L233 SmtUtils]: Spent 24.97s on a formula simplification that was a NOOP. DAG size: 429 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:42:00,534 WARN L233 SmtUtils]: Spent 2.73m on a formula simplification. DAG size of input: 519 DAG size of output: 515 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:43:22,607 WARN L233 SmtUtils]: Spent 1.37m 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) [2022-11-26 00:46:37,861 WARN L233 SmtUtils]: Spent 3.25m on a formula simplification. DAG size of input: 532 DAG size of output: 528 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:47:30,727 WARN L233 SmtUtils]: Spent 52.86s on a formula simplification that was a NOOP. DAG size: 516 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:47:30,731 INFO L134 LiptonReduction]: Checked pairs total: 16032 [2022-11-26 00:47:30,731 INFO L136 LiptonReduction]: Total number of compositions: 438 [2022-11-26 00:47:30,739 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 70 flow [2022-11-26 00:47:30,760 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) [2022-11-26 00:47:30,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:47:30,784 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;@641a6d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:47:30,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-26 00:47:30,786 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) [2022-11-26 00:47:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:47:30,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:30,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:47:30,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-26 00:47:30,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:30,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1365683733, now seen corresponding path program 1 times [2022-11-26 00:47:30,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:30,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802624948] [2022-11-26 00:47:30,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:47:31,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:47:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:47:31,442 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:47:31,444 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:47:31,446 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-26 00:47:31,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-11-26 00:47:31,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-11-26 00:47:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-26 00:47:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-26 00:47:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-26 00:47:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-26 00:47:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-26 00:47:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-26 00:47:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-26 00:47:31,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:47:31,456 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:47:31,465 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:47:31,465 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:47:31,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:47:31 BasicIcfg [2022-11-26 00:47:31,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:47:31,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:47:31,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:47:31,539 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:47:31,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:36:10" (3/4) ... [2022-11-26 00:47:31,542 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:47:31,604 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:47:31,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:47:31,605 INFO L158 Benchmark]: Toolchain (without parser) took 690046.27ms. Allocated memory was 205.5MB in the beginning and 264.2MB in the end (delta: 58.7MB). Free memory was 159.9MB in the beginning and 92.9MB in the end (delta: 67.0MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. [2022-11-26 00:47:31,606 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 146.8MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:47:31,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7184.93ms. Allocated memory was 205.5MB in the beginning and 264.2MB in the end (delta: 58.7MB). Free memory was 159.9MB in the beginning and 181.7MB in the end (delta: -21.8MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. [2022-11-26 00:47:31,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 206.99ms. Allocated memory is still 264.2MB. Free memory was 181.7MB in the beginning and 172.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:47:31,608 INFO L158 Benchmark]: Boogie Preprocessor took 103.30ms. Allocated memory is still 264.2MB. Free memory was 172.3MB in the beginning and 168.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:47:31,608 INFO L158 Benchmark]: RCFGBuilder took 1196.66ms. Allocated memory is still 264.2MB. Free memory was 168.1MB in the beginning and 126.1MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-26 00:47:31,609 INFO L158 Benchmark]: TraceAbstraction took 681279.04ms. Allocated memory is still 264.2MB. Free memory was 125.1MB in the beginning and 101.3MB in the end (delta: 23.8MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2022-11-26 00:47:31,609 INFO L158 Benchmark]: Witness Printer took 65.99ms. Allocated memory is still 264.2MB. Free memory was 101.3MB in the beginning and 92.9MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-26 00:47:31,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 146.8MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 7184.93ms. Allocated memory was 205.5MB in the beginning and 264.2MB in the end (delta: 58.7MB). Free memory was 159.9MB in the beginning and 181.7MB in the end (delta: -21.8MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 206.99ms. Allocated memory is still 264.2MB. Free memory was 181.7MB in the beginning and 172.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.30ms. Allocated memory is still 264.2MB. Free memory was 172.3MB in the beginning and 168.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1196.66ms. Allocated memory is still 264.2MB. Free memory was 168.1MB in the beginning and 126.1MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 681279.04ms. Allocated memory is still 264.2MB. Free memory was 125.1MB in the beginning and 101.3MB in the end (delta: 23.8MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Witness Printer took 65.99ms. Allocated memory is still 264.2MB. Free memory was 101.3MB in the beginning and 92.9MB 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: 680.2s, 367 PlacesBefore, 30 PlacesAfterwards, 375 TransitionsBefore, 27 TransitionsAfterwards, 14106 CoEnabledTransitionPairs, 10 FixpointIterations, 202 TrivialSequentialCompositions, 175 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 33 ConcurrentYvCompositions, 11 ChoiceCompositions, 438 TotalNumberOfCompositions, 16032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13799, independent: 13653, independent conditional: 0, independent unconditional: 13653, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10214, independent: 10162, independent conditional: 0, independent unconditional: 10162, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10214, independent: 10144, independent conditional: 0, independent unconditional: 10144, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2474, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 280, dependent conditional: 0, dependent unconditional: 280, unknown: 2146, unknown conditional: 0, unknown unconditional: 2146] ], Cache Queries: [ total: 13799, independent: 3491, independent conditional: 0, independent unconditional: 3491, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 10217, unknown conditional: 0, unknown unconditional: 10217] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, 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 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_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=13, 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_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((void *)0))=-1, pthread_t_nvram_llseek={11:0}, pthread_t_read_nvram={10:0}, whoop_buf={-8:0}, whoop_cx_dev={-9:0}, whoop_file_0={-12:0}, whoop_file_1={-15:0}, whoop_file_2={-16:0}, whoop_file_3={-18:0}, whoop_file_4={-7:0}, whoop_inode_0={-10:0}, whoop_inode_1={-4:0}, whoop_inode_2={-14:0}, whoop_inode_3={-3:0}, whoop_inode_4={-11:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-17:0}, whoop_poll_table={-2:0}, whoop_vm_area_struct={-13:0}] [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=13, 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))=0, pthread_t_nvram_llseek={11:0}, pthread_t_read_nvram={10:0}, whoop_buf={-8:0}, whoop_cx_dev={-9:0}, whoop_file_0={-12:0}, whoop_file_1={-15:0}, whoop_file_2={-16:0}, whoop_file_3={-18:0}, whoop_file_4={-7:0}, whoop_inode_0={-10:0}, whoop_inode_1={-4:0}, whoop_inode_2={-14:0}, whoop_inode_3={-3:0}, whoop_inode_4={-11:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-17:0}, whoop_poll_table={-2:0}, whoop_vm_area_struct={-13:0}] [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={-18:0}, file={-18:0}, file->f_pos=9223372036854775808, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-8:0}, whoop_cx_dev={-9:0}, whoop_file_0={-12:0}, whoop_file_1={-15:0}, whoop_file_2={-16:0}, whoop_file_3={-18:0}, whoop_file_4={-7:0}, whoop_inode_0={-10:0}, whoop_inode_1={-4:0}, whoop_inode_2={-14:0}, whoop_inode_3={-3:0}, whoop_inode_4={-11:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-17:0}, whoop_poll_table={-2:0}, whoop_vm_area_struct={-13:0}] - 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: 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: 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: 681.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 680.3s, 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, 0.3s 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! [2022-11-26 00:47:31,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab37384-8da4-48e7-a3d2-5f49f25bf0ed/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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)