./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:27:29,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:27:29,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:27:29,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:27:29,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:27:29,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:27:29,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:27:29,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:27:29,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:27:29,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:27:29,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:27:29,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:27:29,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:27:29,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:27:29,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:27:29,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:27:29,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:27:29,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:27:29,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:27:29,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:27:29,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:27:29,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:27:29,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:27:29,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:27:29,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:27:29,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:27:29,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:27:29,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:27:29,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:27:29,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:27:29,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:27:29,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:27:29,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:27:29,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:27:29,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:27:29,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:27:29,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:27:29,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:27:29,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:27:29,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:27:29,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:27:29,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 15:27:29,629 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:27:29,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:27:29,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:27:29,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:27:29,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:27:29,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:27:29,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:27:29,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:27:29,638 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:27:29,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:27:29,639 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:27:29,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:27:29,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:27:29,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:27:29,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:27:29,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:27:29,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:27:29,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:27:29,640 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:27:29,640 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:27:29,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:27:29,640 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:27:29,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:27:29,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:27:29,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:27:29,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:27:29,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:27:29,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:27:29,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:27:29,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:27:29,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:27:29,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:27:29,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:27:29,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:27:29,642 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:27:29,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:27:29,642 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:27:29,642 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 [2022-12-13 15:27:29,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:27:29,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:27:29,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:27:29,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:27:29,856 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:27:29,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-13 15:27:32,410 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:27:32,791 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:27:32,792 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-13 15:27:32,818 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/data/015ad6956/89dc5705fb254b7daaf84b0022b5df3b/FLAG0410e7ee5 [2022-12-13 15:27:32,980 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/data/015ad6956/89dc5705fb254b7daaf84b0022b5df3b [2022-12-13 15:27:32,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:27:32,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:27:32,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:27:32,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:27:32,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:27:32,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:27:32" (1/1) ... [2022-12-13 15:27:32,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fbf68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:32, skipping insertion in model container [2022-12-13 15:27:32,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:27:32" (1/1) ... [2022-12-13 15:27:33,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:27:33,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:27:33,386 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_96c4eb94-aae3-4581-b7f4-df886ffff61f/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-12-13 15:27:33,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:33,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:33,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:34,310 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 15:27:34,314 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 15:27:34,318 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 15:27:34,325 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 15:27:34,424 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 15:27:34,429 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 15:27:34,545 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 15:27:34,774 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 15:27:34,781 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 15:27:34,847 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 15:27:34,851 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 15:27:35,130 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 15:27:35,133 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 15:27:35,136 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 15:27:35,228 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 15:27:35,228 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 15:27:35,231 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 15:27:35,231 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 15:27:35,407 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 15:27:35,448 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 15:27:35,652 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 15:27:35,655 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 15:27:35,820 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 15:27:35,986 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 15:27:35,986 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 15:27:35,986 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 15:27:36,816 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 15:27:36,816 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 15:27:36,820 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 15:27:36,823 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 15:27:36,826 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 15:27:37,353 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 15:27:37,357 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 15:27:37,361 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 15:27:37,368 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 15:27:37,368 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 15:27:37,371 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 15:27:37,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:27:37,400 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:27:37,409 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_96c4eb94-aae3-4581-b7f4-df886ffff61f/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-12-13 15:27:37,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:27:37,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:27:37,433 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 15:27:37,433 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 15:27:37,433 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 15:27:37,434 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 15:27:37,437 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 15:27:37,438 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 15:27:37,440 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 15:27:37,448 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 15:27:37,448 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 15:27:37,450 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 15:27:37,450 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 15:27:37,456 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 15:27:37,457 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 15:27:37,457 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 15:27:37,459 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 15:27:37,460 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 15:27:37,460 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 15:27:37,460 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 15:27:37,466 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 15:27:37,467 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 15:27:37,471 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 15:27:37,472 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 15:27:37,474 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 15:27:37,477 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 15:27:37,478 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 15:27:37,478 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 15:27:37,543 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 15:27:37,543 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 15:27:37,545 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 15:27:37,546 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 15:27:37,548 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 15:27:37,576 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 15:27:37,577 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 15:27:37,578 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 15:27:37,579 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 15:27:37,580 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 15:27:37,580 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 15:27:37,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:27:37,943 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:27:37,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37 WrapperNode [2022-12-13 15:27:37,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:27:37,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:27:37,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:27:37,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:27:37,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,040 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 318 [2022-12-13 15:27:38,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:27:38,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:27:38,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:27:38,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:27:38,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,066 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:27:38,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:27:38,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:27:38,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:27:38,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (1/1) ... [2022-12-13 15:27:38,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:27:38,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:27:38,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:27:38,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:27:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:27:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:27:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-13 15:27:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:27:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-13 15:27:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-13 15:27:38,139 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:27:38,446 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:27:38,448 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:27:38,754 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:27:38,762 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:27:38,762 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:27:38,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:38 BoogieIcfgContainer [2022-12-13 15:27:38,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:27:38,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:27:38,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:27:38,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:27:38,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:27:32" (1/3) ... [2022-12-13 15:27:38,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f068dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:27:38, skipping insertion in model container [2022-12-13 15:27:38,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:37" (2/3) ... [2022-12-13 15:27:38,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f068dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:27:38, skipping insertion in model container [2022-12-13 15:27:38,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:38" (3/3) ... [2022-12-13 15:27:38,770 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-13 15:27:38,777 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:27:38,786 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:27:38,786 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 15:27:38,786 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:27:38,863 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 15:27:38,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 365 places, 373 transitions, 762 flow [2022-12-13 15:27:38,996 INFO L130 PetriNetUnfolder]: 15/371 cut-off events. [2022-12-13 15:27:38,996 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:27:39,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 371 events. 15/371 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 381 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 297. Up to 5 conditions per place. [2022-12-13 15:27:39,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 365 places, 373 transitions, 762 flow [2022-12-13 15:27:39,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 362 transitions, 733 flow [2022-12-13 15:27:39,010 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:27:39,018 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 362 transitions, 733 flow [2022-12-13 15:27:39,021 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 362 transitions, 733 flow [2022-12-13 15:27:39,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 354 places, 362 transitions, 733 flow [2022-12-13 15:27:39,072 INFO L130 PetriNetUnfolder]: 15/362 cut-off events. [2022-12-13 15:27:39,072 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:27:39,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 362 events. 15/362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 362 event pairs, 0 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 297. Up to 5 conditions per place. [2022-12-13 15:27:39,078 INFO L119 LiptonReduction]: Number of co-enabled transitions 13830 [2022-12-13 15:28:16,696 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 376 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:28:22,342 WARN L233 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:28:30,346 WARN L233 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 376 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:28:37,763 WARN L233 SmtUtils]: Spent 7.41s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:30:27,405 WARN L233 SmtUtils]: Spent 1.78m on a formula simplification. DAG size of input: 537 DAG size of output: 533 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:31:01,952 WARN L233 SmtUtils]: Spent 34.54s 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) [2022-12-13 15:33:09,012 WARN L233 SmtUtils]: Spent 2.12m on a formula simplification. DAG size of input: 544 DAG size of output: 540 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:33:57,532 WARN L233 SmtUtils]: Spent 48.51s 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) [2022-12-13 15:35:34,886 WARN L233 SmtUtils]: Spent 1.62m on a formula simplification. DAG size of input: 522 DAG size of output: 518 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:36:01,289 WARN L233 SmtUtils]: Spent 26.39s 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) [2022-12-13 15:37:30,455 WARN L233 SmtUtils]: Spent 1.49m on a formula simplification. DAG size of input: 525 DAG size of output: 521 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:37:58,872 WARN L233 SmtUtils]: Spent 28.41s 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) [2022-12-13 15:37:58,882 INFO L134 LiptonReduction]: Checked pairs total: 14601 [2022-12-13 15:37:58,882 INFO L136 LiptonReduction]: Total number of compositions: 422 [2022-12-13 15:37:58,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:37:58,896 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=PETRI_NET, 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;@341b6513, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:37:58,896 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 15:37:58,901 INFO L130 PetriNetUnfolder]: 2/10 cut-off events. [2022-12-13 15:37:58,901 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:37:58,901 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:37:58,902 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 15:37:58,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 15:37:58,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:58,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1345213188, now seen corresponding path program 1 times [2022-12-13 15:37:58,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:58,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082652199] [2022-12-13 15:37:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:58,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:37:59,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:37:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:37:59,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:37:59,387 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:37:59,388 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 15:37:59,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-12-13 15:37:59,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-12-13 15:37:59,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 15:37:59,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-12-13 15:37:59,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-12-13 15:37:59,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 15:37:59,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 15:37:59,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 15:37:59,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 15:37:59,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:37:59,391 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 15:37:59,396 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:37:59,396 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:37:59,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:37:59 BasicIcfg [2022-12-13 15:37:59,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:37:59,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:37:59,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:37:59,428 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:37:59,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:38" (3/4) ... [2022-12-13 15:37:59,430 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 15:37:59,471 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:37:59,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:37:59,472 INFO L158 Benchmark]: Toolchain (without parser) took 626487.40ms. Allocated memory was 144.7MB in the beginning and 211.8MB in the end (delta: 67.1MB). Free memory was 98.0MB in the beginning and 52.9MB in the end (delta: 45.1MB). Peak memory consumption was 115.2MB. Max. memory is 16.1GB. [2022-12-13 15:37:59,472 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory was 111.0MB in the beginning and 110.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:37:59,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4957.85ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 98.0MB in the beginning and 65.1MB in the end (delta: 32.9MB). Peak memory consumption was 99.1MB. Max. memory is 16.1GB. [2022-12-13 15:37:59,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.10ms. Allocated memory is still 176.2MB. Free memory was 65.1MB in the beginning and 55.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 15:37:59,473 INFO L158 Benchmark]: Boogie Preprocessor took 31.94ms. Allocated memory is still 176.2MB. Free memory was 55.7MB in the beginning and 51.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:37:59,473 INFO L158 Benchmark]: RCFGBuilder took 691.11ms. Allocated memory is still 176.2MB. Free memory was 51.5MB in the beginning and 73.3MB in the end (delta: -21.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-12-13 15:37:59,473 INFO L158 Benchmark]: TraceAbstraction took 620661.72ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 72.3MB in the beginning and 61.2MB in the end (delta: 11.0MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-12-13 15:37:59,474 INFO L158 Benchmark]: Witness Printer took 43.67ms. Allocated memory is still 211.8MB. Free memory was 61.2MB in the beginning and 52.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 15:37:59,475 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 144.7MB. Free memory was 111.0MB in the beginning and 110.9MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4957.85ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 98.0MB in the beginning and 65.1MB in the end (delta: 32.9MB). Peak memory consumption was 99.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.10ms. Allocated memory is still 176.2MB. Free memory was 65.1MB in the beginning and 55.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.94ms. Allocated memory is still 176.2MB. Free memory was 55.7MB in the beginning and 51.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 691.11ms. Allocated memory is still 176.2MB. Free memory was 51.5MB in the beginning and 73.3MB in the end (delta: -21.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 620661.72ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 72.3MB in the beginning and 61.2MB in the end (delta: 11.0MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 43.67ms. Allocated memory is still 211.8MB. Free memory was 61.2MB in the beginning and 52.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 619.9s, 354 PlacesBefore, 26 PlacesAfterwards, 362 TransitionsBefore, 23 TransitionsAfterwards, 13830 CoEnabledTransitionPairs, 10 FixpointIterations, 199 TrivialSequentialCompositions, 166 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 32 ConcurrentYvCompositions, 11 ChoiceCompositions, 422 TotalNumberOfCompositions, 14601 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12579, independent: 12445, independent conditional: 0, independent unconditional: 12445, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8095, independent: 8048, independent conditional: 0, independent unconditional: 8048, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12579, independent: 4397, independent conditional: 0, independent unconditional: 4397, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 8095, unknown conditional: 0, unknown unconditional: 8095] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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_write_nvram; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=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_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0))=13, pthread_t_nvram_llseek={11:0}, pthread_t_write_nvram={10:0}, whoop_buf={-11:0}, whoop_cx_dev={-6:0}, whoop_file_0={-17:0}, whoop_file_1={-18:0}, whoop_file_2={-9:0}, whoop_file_3={-13:0}, whoop_file_4={-16:0}, whoop_inode_0={-7:0}, whoop_inode_1={-12:0}, whoop_inode_2={-14:0}, whoop_inode_3={-20:0}, whoop_inode_4={-19:0}, whoop_int=1, whoop_loff_t={-8:0}, whoop_pci_dev={-4:0}, whoop_platform_device={-5:0}, whoop_poll_table={-15:0}, whoop_vm_area_struct={-3:0}] [L6862] FCALL, FORK 0 pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0))=14, pthread_t_nvram_llseek={11:0}, pthread_t_write_nvram={10:0}, whoop_buf={-11:0}, whoop_cx_dev={-6:0}, whoop_file_0={-17:0}, whoop_file_1={-18:0}, whoop_file_2={-9:0}, whoop_file_3={-13:0}, whoop_file_4={-16:0}, whoop_inode_0={-7:0}, whoop_inode_1={-12:0}, whoop_inode_2={-14:0}, whoop_inode_3={-20:0}, whoop_inode_4={-19:0}, whoop_int=1, whoop_loff_t={-8:0}, whoop_pci_dev={-4:0}, whoop_platform_device={-5:0}, whoop_poll_table={-15:0}, whoop_vm_area_struct={-3:0}] [L6829] CALL 2 nvram_llseek(whoop_file_3, __VERIFIER_nondet_long(), whoop_int) [L6691] 2 case 0: [L6693] 2 case 1: [L6694] EXPR 2 file->f_pos [L6694] 2 offset += file->f_pos VAL [={-1:4}, ={-1:5}, \old(offset)=0, \old(origin)=1, default_alloc_size=4, file={-13:0}, file={-13:0}, file->f_pos=9223372036854775808, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-11:0}, whoop_cx_dev={-6:0}, whoop_file_0={-17:0}, whoop_file_1={-18:0}, whoop_file_2={-9:0}, whoop_file_3={-13:0}, whoop_file_4={-16:0}, whoop_inode_0={-7:0}, whoop_inode_1={-12:0}, whoop_inode_2={-14:0}, whoop_inode_3={-20:0}, whoop_inode_4={-19:0}, whoop_int=1, whoop_loff_t={-8:0}, whoop_pci_dev={-4:0}, whoop_platform_device={-5:0}, whoop_poll_table={-15:0}, whoop_vm_area_struct={-3:0}] - UnprovableResult [Line: 6861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6862]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6694]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 506 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 620.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 620.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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! [2022-12-13 15:37:59,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96c4eb94-aae3-4581-b7f4-df886ffff61f/bin/uautomizer-uyxdKDjOR8/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)