./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/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_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/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_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/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 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:17:32,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:17:32,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:17:32,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:17:32,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:17:32,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:17:32,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:17:32,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:17:32,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:17:32,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:17:32,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:17:32,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:17:32,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:17:32,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:17:32,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:17:32,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:17:32,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:17:32,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:17:32,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:17:32,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:17:32,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:17:32,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:17:32,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:17:32,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:17:32,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:17:32,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:17:32,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:17:32,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:17:32,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:17:32,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:17:32,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:17:32,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:17:32,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:17:32,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:17:32,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:17:32,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:17:32,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:17:32,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:17:32,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:17:32,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:17:32,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:17:32,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 20:17:32,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:17:32,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:17:32,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:17:32,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:17:32,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:17:32,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:17:32,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:17:32,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:17:32,253 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:17:32,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:17:32,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:17:32,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:17:32,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:17:32,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:17:32,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:17:32,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:17:32,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:17:32,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:17:32,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:17:32,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:17:32,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:17:32,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:17:32,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:17:32,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:17:32,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:17:32,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:17:32,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:17:32,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:17:32,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:17:32,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:17:32,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:17:32,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:17:32,257 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:17:32,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:17:32,258 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:17:32,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:17:32,258 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:17:32,258 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_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 [2022-12-13 20:17:32,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:17:32,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:17:32,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:17:32,457 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:17:32,458 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:17:32,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 20:17:35,063 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:17:35,437 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:17:35,438 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 20:17:35,466 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/data/bc010eb4d/00939463a6854830aa55b66e1d94338a/FLAG609bb8169 [2022-12-13 20:17:35,478 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/data/bc010eb4d/00939463a6854830aa55b66e1d94338a [2022-12-13 20:17:35,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:17:35,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:17:35,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:17:35,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:17:35,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:17:35,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:17:35" (1/1) ... [2022-12-13 20:17:35,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a0a444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:35, skipping insertion in model container [2022-12-13 20:17:35,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:17:35" (1/1) ... [2022-12-13 20:17:35,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:17:35,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:17:35,857 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_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 20:17:36,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,198 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,204 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,334 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:36,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:36,728 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 20:17:36,731 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:17:36,734 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:17:36,741 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:17:36,820 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 20:17:36,824 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 20:17:36,928 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 20:17:37,099 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 20:17:37,105 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 20:17:37,151 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 20:17:37,154 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 20:17:37,363 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 20:17:37,365 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 20:17:37,368 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 20:17:37,438 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 20:17:37,438 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 20:17:37,440 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 20:17:37,441 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 20:17:37,570 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 20:17:37,600 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 20:17:37,737 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 20:17:37,740 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 20:17:37,876 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 20:17:38,024 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 20:17:38,024 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 20:17:38,025 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 20:17:38,838 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 20:17:38,839 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:17:38,841 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:17:38,844 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:17:38,846 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:17:39,313 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 20:17:39,316 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 20:17:39,320 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 20:17:39,327 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 20:17:39,328 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 20:17:39,330 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 20:17:39,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:17:39,360 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:17:39,370 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_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 20:17:39,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:17:39,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:17:39,394 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 20:17:39,394 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:17:39,395 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:17:39,395 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:17:39,398 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 20:17:39,399 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 20:17:39,401 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 20:17:39,425 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 20:17:39,426 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 20:17:39,428 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 20:17:39,428 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 20:17:39,435 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 20:17:39,436 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 20:17:39,436 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 20:17:39,439 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 20:17:39,439 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 20:17:39,440 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 20:17:39,440 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 20:17:39,446 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 20:17:39,448 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 20:17:39,452 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 20:17:39,452 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 20:17:39,455 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 20:17:39,458 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 20:17:39,459 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 20:17:39,459 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 20:17:39,568 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 20:17:39,569 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:17:39,570 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:17:39,573 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:17:39,574 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:17:39,603 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 20:17:39,604 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 20:17:39,605 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 20:17:39,606 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 20:17:39,606 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 20:17:39,607 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 20:17:39,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:17:39,990 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:17:39,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39 WrapperNode [2022-12-13 20:17:39,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:17:39,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:17:39,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:17:39,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:17:39,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,085 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 16, statements flattened = 286 [2022-12-13 20:17:40,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:17:40,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:17:40,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:17:40,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:17:40,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,119 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:17:40,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:17:40,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:17:40,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:17:40,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (1/1) ... [2022-12-13 20:17:40,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:17:40,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:17:40,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:17:40,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:17:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:17:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 20:17:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 20:17:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 20:17:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:17:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:17:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:17:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-13 20:17:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-13 20:17:40,183 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 20:17:40,463 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:17:40,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:17:40,770 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:17:40,800 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:17:40,801 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:17:40,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:17:40 BoogieIcfgContainer [2022-12-13 20:17:40,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:17:40,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:17:40,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:17:40,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:17:40,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:17:35" (1/3) ... [2022-12-13 20:17:40,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a57585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:17:40, skipping insertion in model container [2022-12-13 20:17:40,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:17:39" (2/3) ... [2022-12-13 20:17:40,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a57585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:17:40, skipping insertion in model container [2022-12-13 20:17:40,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:17:40" (3/3) ... [2022-12-13 20:17:40,811 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 20:17:40,819 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:17:40,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:17:40,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 20:17:40,830 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:17:40,910 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 20:17:40,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 329 transitions, 674 flow [2022-12-13 20:17:41,066 INFO L130 PetriNetUnfolder]: 11/327 cut-off events. [2022-12-13 20:17:41,066 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:17:41,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 327 events. 11/327 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 291 event pairs, 0 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 253. Up to 5 conditions per place. [2022-12-13 20:17:41,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 329 transitions, 674 flow [2022-12-13 20:17:41,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 314 places, 318 transitions, 645 flow [2022-12-13 20:17:41,084 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:17:41,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 314 places, 318 transitions, 645 flow [2022-12-13 20:17:41,098 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 314 places, 318 transitions, 645 flow [2022-12-13 20:17:41,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 314 places, 318 transitions, 645 flow [2022-12-13 20:17:41,160 INFO L130 PetriNetUnfolder]: 11/318 cut-off events. [2022-12-13 20:17:41,160 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:17:41,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 318 events. 11/318 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 291 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 253. Up to 5 conditions per place. [2022-12-13 20:17:41,166 INFO L119 LiptonReduction]: Number of co-enabled transitions 7758 [2022-12-13 20:18:23,193 WARN L233 SmtUtils]: Spent 7.08s on a formula simplification that was a NOOP. DAG size: 353 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:18:30,865 WARN L233 SmtUtils]: Spent 7.67s on a formula simplification that was a NOOP. DAG size: 353 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:20:32,900 WARN L233 SmtUtils]: Spent 1.90m on a formula simplification. DAG size of input: 545 DAG size of output: 541 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:21:23,264 WARN L233 SmtUtils]: Spent 50.35s 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 20:23:13,385 WARN L233 SmtUtils]: Spent 1.84m on a formula simplification. DAG size of input: 552 DAG size of output: 548 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:24:18,096 WARN L233 SmtUtils]: Spent 1.08m 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 20:25:47,505 WARN L233 SmtUtils]: Spent 1.49m on a formula simplification. DAG size of input: 530 DAG size of output: 526 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:26:29,243 WARN L233 SmtUtils]: Spent 41.73s 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 20:27:34,667 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification. DAG size of input: 533 DAG size of output: 529 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:28:02,023 WARN L233 SmtUtils]: Spent 27.34s 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 20:28:02,033 INFO L134 LiptonReduction]: Checked pairs total: 8287 [2022-12-13 20:28:02,033 INFO L136 LiptonReduction]: Total number of compositions: 369 [2022-12-13 20:28:02,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:28:02,046 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;@34783589, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:28:02,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 20:28:02,051 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-12-13 20:28:02,051 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:28:02,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:02,052 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:28:02,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 20:28:02,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:02,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1177849146, now seen corresponding path program 1 times [2022-12-13 20:28:02,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:02,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511158824] [2022-12-13 20:28:02,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:02,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:28:02,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:28:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:28:02,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:28:02,854 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:28:02,855 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 20:28:02,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-12-13 20:28:02,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-12-13 20:28:02,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 20:28:02,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-12-13 20:28:02,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-12-13 20:28:02,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 20:28:02,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 20:28:02,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 20:28:02,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 20:28:02,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:28:02,858 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:28:02,864 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:28:02,864 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:28:02,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:28:02 BasicIcfg [2022-12-13 20:28:02,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:28:02,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:28:02,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:28:02,893 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:28:02,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:17:40" (3/4) ... [2022-12-13 20:28:02,895 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 20:28:02,935 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:28:02,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:28:02,936 INFO L158 Benchmark]: Toolchain (without parser) took 627455.04ms. Allocated memory was 134.2MB in the beginning and 205.5MB in the end (delta: 71.3MB). Free memory was 91.0MB in the beginning and 48.6MB in the end (delta: 42.4MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. [2022-12-13 20:28:02,936 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:28:02,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4508.25ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 91.0MB in the beginning and 81.0MB in the end (delta: 10.0MB). Peak memory consumption was 87.8MB. Max. memory is 16.1GB. [2022-12-13 20:28:02,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.35ms. Allocated memory is still 169.9MB. Free memory was 81.0MB in the beginning and 71.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 20:28:02,937 INFO L158 Benchmark]: Boogie Preprocessor took 38.49ms. Allocated memory is still 169.9MB. Free memory was 71.6MB in the beginning and 67.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:28:02,937 INFO L158 Benchmark]: RCFGBuilder took 677.80ms. Allocated memory is still 169.9MB. Free memory was 67.4MB in the beginning and 82.5MB in the end (delta: -15.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2022-12-13 20:28:02,938 INFO L158 Benchmark]: TraceAbstraction took 622087.00ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 81.5MB in the beginning and 56.0MB in the end (delta: 25.5MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2022-12-13 20:28:02,938 INFO L158 Benchmark]: Witness Printer took 42.77ms. Allocated memory is still 205.5MB. Free memory was 56.0MB in the beginning and 48.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 20:28:02,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4508.25ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 91.0MB in the beginning and 81.0MB in the end (delta: 10.0MB). Peak memory consumption was 87.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.35ms. Allocated memory is still 169.9MB. Free memory was 81.0MB in the beginning and 71.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.49ms. Allocated memory is still 169.9MB. Free memory was 71.6MB in the beginning and 67.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 677.80ms. Allocated memory is still 169.9MB. Free memory was 67.4MB in the beginning and 82.5MB in the end (delta: -15.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * TraceAbstraction took 622087.00ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 81.5MB in the beginning and 56.0MB in the end (delta: 25.5MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. * Witness Printer took 42.77ms. Allocated memory is still 205.5MB. Free memory was 56.0MB in the beginning and 48.6MB in the end (delta: 7.4MB). 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: 620.9s, 314 PlacesBefore, 24 PlacesAfterwards, 318 TransitionsBefore, 19 TransitionsAfterwards, 7758 CoEnabledTransitionPairs, 10 FixpointIterations, 200 TrivialSequentialCompositions, 124 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 23 ConcurrentYvCompositions, 9 ChoiceCompositions, 369 TotalNumberOfCompositions, 8287 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6863, independent: 6744, independent conditional: 0, independent unconditional: 6744, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4354, independent: 4314, independent conditional: 0, independent unconditional: 4314, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6863, independent: 2430, independent conditional: 0, independent unconditional: 2430, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 4354, unknown conditional: 0, unknown unconditional: 4354] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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_nvram_unlocked_ioctl; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_nvram_unlocked_ioctl, ((void *)0), whoop_wrapper_nvram_unlocked_ioctl, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_unlocked_ioctl, ((void *)0), whoop_wrapper_nvram_unlocked_ioctl, ((void *)0))=10, pthread_t_nvram_llseek={41:0}, pthread_t_nvram_unlocked_ioctl={39:0}, whoop_buf={27:0}, whoop_cx_dev={25:0}, whoop_file_0={26:0}, whoop_file_1={33:0}, whoop_file_2={21:0}, whoop_file_3={24:0}, whoop_file_4={31:0}, whoop_inode_0={30:0}, whoop_inode_1={23:0}, whoop_inode_2={29:0}, whoop_inode_3={32:0}, whoop_inode_4={19:0}, whoop_int=1, whoop_loff_t={18:0}, whoop_pci_dev={22:0}, whoop_platform_device={34:0}, whoop_poll_table={35:0}, whoop_vm_area_struct={37:0}] [L6862] FCALL, FORK 0 pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0)) VAL [={-1:4}, ={-1:5}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0))=11, pthread_t_nvram_llseek={41:0}, pthread_t_nvram_unlocked_ioctl={39:0}, whoop_buf={27:0}, whoop_cx_dev={25:0}, whoop_file_0={26:0}, whoop_file_1={33:0}, whoop_file_2={21:0}, whoop_file_3={24:0}, whoop_file_4={31:0}, whoop_inode_0={30:0}, whoop_inode_1={23:0}, whoop_inode_2={29:0}, whoop_inode_3={32:0}, whoop_inode_4={19:0}, whoop_int=1, whoop_loff_t={18:0}, whoop_pci_dev={22:0}, whoop_platform_device={34:0}, whoop_poll_table={35:0}, whoop_vm_area_struct={37:0}] [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={24:0}, file={24:0}, file->f_pos=-9223372036854775809, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={27:0}, whoop_cx_dev={25:0}, whoop_file_0={26:0}, whoop_file_1={33:0}, whoop_file_2={21:0}, whoop_file_3={24:0}, whoop_file_4={31:0}, whoop_inode_0={30:0}, whoop_inode_1={23:0}, whoop_inode_2={29:0}, whoop_inode_3={32:0}, whoop_inode_4={19:0}, whoop_int=1, whoop_loff_t={18:0}, whoop_pci_dev={22:0}, whoop_platform_device={34:0}, whoop_poll_table={35:0}, whoop_vm_area_struct={37:0}] - UnprovableResult [Line: 6861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6862]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6694]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 426 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 621.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 621.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 0.6s 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 20:28:02,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc1c7fb-3149-4a49-b109-2cc4952bc7a3/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)