./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/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_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/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_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/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 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:47:08,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:47:08,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:47:08,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:47:08,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:47:08,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:47:08,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:47:08,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:47:08,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:47:08,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:47:08,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:47:08,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:47:08,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:47:08,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:47:08,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:47:08,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:47:08,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:47:08,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:47:08,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:47:08,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:47:08,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:47:08,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:47:08,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:47:08,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:47:08,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:47:08,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:47:08,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:47:08,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:47:08,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:47:08,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:47:08,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:47:08,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:47:08,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:47:08,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:47:08,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:47:08,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:47:08,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:47:08,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:47:08,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:47:08,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:47:08,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:47:08,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 20:47:08,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:47:08,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:47:08,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:47:08,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:47:08,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:47:08,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:47:08,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:47:08,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:47:08,417 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:47:08,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:47:08,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:47:08,419 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:47:08,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:47:08,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:47:08,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:47:08,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:47:08,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:47:08,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:47:08,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:47:08,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:47:08,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:47:08,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:47:08,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:47:08,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:47:08,420 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:47:08,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:47:08,420 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:47:08,420 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_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 [2022-12-13 20:47:08,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:47:08,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:47:08,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:47:08,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:47:08,610 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:47:08,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-13 20:47:11,152 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:47:11,500 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:47:11,500 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-13 20:47:11,520 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/data/dba71c750/23a0c7671b6f4919abaa4b0c5d083c25/FLAG580d9db44 [2022-12-13 20:47:11,729 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/data/dba71c750/23a0c7671b6f4919abaa4b0c5d083c25 [2022-12-13 20:47:11,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:47:11,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:47:11,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:47:11,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:47:11,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:47:11,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:47:11" (1/1) ... [2022-12-13 20:47:11,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f502fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:11, skipping insertion in model container [2022-12-13 20:47:11,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:47:11" (1/1) ... [2022-12-13 20:47:11,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:47:11,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:47:12,067 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_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-12-13 20:47:12,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:12,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:12,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:13,095 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 20:47:13,099 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:47:13,103 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:47:13,110 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:47:13,208 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 20:47:13,212 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 20:47:13,322 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 20:47:13,485 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 20:47:13,490 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 20:47:13,542 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 20:47:13,545 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 20:47:13,760 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 20:47:13,762 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 20:47:13,764 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 20:47:13,834 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 20:47:13,834 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 20:47:13,837 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 20:47:13,837 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 20:47:13,964 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 20:47:13,993 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 20:47:14,135 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 20:47:14,138 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 20:47:14,278 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 20:47:14,427 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 20:47:14,427 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 20:47:14,427 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 20:47:15,188 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 20:47:15,188 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:47:15,191 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:47:15,194 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:47:15,197 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:47:15,688 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 20:47:15,693 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 20:47:15,697 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 20:47:15,705 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 20:47:15,706 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 20:47:15,709 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 20:47:15,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:47:15,751 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:47:15,762 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_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-12-13 20:47:15,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:47:15,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:47:15,790 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 20:47:15,791 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:47:15,791 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:47:15,791 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 20:47:15,795 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 20:47:15,796 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 20:47:15,798 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 20:47:15,808 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 20:47:15,809 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 20:47:15,811 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 20:47:15,812 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 20:47:15,820 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 20:47:15,820 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 20:47:15,820 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 20:47:15,825 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 20:47:15,825 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 20:47:15,825 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 20:47:15,826 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 20:47:15,838 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 20:47:15,842 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 20:47:15,849 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 20:47:15,850 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 20:47:15,855 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 20:47:15,860 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 20:47:15,860 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 20:47:15,861 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 20:47:15,940 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 20:47:15,940 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:47:15,942 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:47:15,944 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:47:15,946 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 20:47:15,977 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 20:47:15,978 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 20:47:15,979 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 20:47:15,980 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 20:47:15,980 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 20:47:15,981 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 20:47:15,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:47:16,403 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:47:16,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16 WrapperNode [2022-12-13 20:47:16,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:47:16,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:47:16,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:47:16,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:47:16,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,526 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 318 [2022-12-13 20:47:16,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:47:16,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:47:16,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:47:16,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:47:16,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,554 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:47:16,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:47:16,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:47:16,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:47:16,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (1/1) ... [2022-12-13 20:47:16,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:47:16,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:47:16,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:47:16,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:47:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:47:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 20:47:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:47:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:47:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:47:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 20:47:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:47:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:47:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-13 20:47:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-13 20:47:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:47:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 20:47:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:47:16,618 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-13 20:47:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-13 20:47:16,620 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 20:47:16,930 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:47:16,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:47:17,275 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:47:17,285 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:47:17,285 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:47:17,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:47:17 BoogieIcfgContainer [2022-12-13 20:47:17,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:47:17,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:47:17,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:47:17,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:47:17,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:47:11" (1/3) ... [2022-12-13 20:47:17,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7362bbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:47:17, skipping insertion in model container [2022-12-13 20:47:17,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:47:16" (2/3) ... [2022-12-13 20:47:17,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7362bbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:47:17, skipping insertion in model container [2022-12-13 20:47:17,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:47:17" (3/3) ... [2022-12-13 20:47:17,295 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-13 20:47:17,303 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:47:17,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:47:17,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 20:47:17,312 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:47:17,400 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 20:47:17,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 375 transitions, 766 flow [2022-12-13 20:47:17,519 INFO L130 PetriNetUnfolder]: 15/373 cut-off events. [2022-12-13 20:47:17,520 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:47:17,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 373 events. 15/373 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 403 event pairs, 0 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 299. Up to 5 conditions per place. [2022-12-13 20:47:17,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 367 places, 375 transitions, 766 flow [2022-12-13 20:47:17,531 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 356 places, 364 transitions, 737 flow [2022-12-13 20:47:17,534 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:47:17,542 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 356 places, 364 transitions, 737 flow [2022-12-13 20:47:17,544 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 356 places, 364 transitions, 737 flow [2022-12-13 20:47:17,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 356 places, 364 transitions, 737 flow [2022-12-13 20:47:17,609 INFO L130 PetriNetUnfolder]: 15/364 cut-off events. [2022-12-13 20:47:17,609 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:47:17,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 364 events. 15/364 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 378 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 299. Up to 5 conditions per place. [2022-12-13 20:47:17,615 INFO L119 LiptonReduction]: Number of co-enabled transitions 14106 [2022-12-13 20:47:55,960 WARN L233 SmtUtils]: Spent 10.43s on a formula simplification that was a NOOP. DAG size: 366 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:48:05,326 WARN L233 SmtUtils]: Spent 9.37s on a formula simplification that was a NOOP. DAG size: 366 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:50:03,787 WARN L233 SmtUtils]: Spent 1.76m on a formula simplification. DAG size of input: 540 DAG size of output: 536 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:50:51,722 WARN L233 SmtUtils]: Spent 47.93s on a formula simplification that was a NOOP. DAG size: 498 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:52:48,904 WARN L233 SmtUtils]: Spent 1.95m on a formula simplification. DAG size of input: 547 DAG size of output: 543 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:53:47,402 WARN L233 SmtUtils]: Spent 58.49s on a formula simplification that was a NOOP. DAG size: 505 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:55:22,759 WARN L233 SmtUtils]: Spent 1.59m on a formula simplification. DAG size of input: 521 DAG size of output: 517 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:55:51,307 WARN L233 SmtUtils]: Spent 28.54s on a formula simplification that was a NOOP. DAG size: 479 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:57:41,050 WARN L233 SmtUtils]: Spent 1.83m on a formula simplification. DAG size of input: 524 DAG size of output: 520 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:58:09,200 WARN L233 SmtUtils]: Spent 28.14s on a formula simplification that was a NOOP. DAG size: 482 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:58:09,219 INFO L134 LiptonReduction]: Checked pairs total: 15987 [2022-12-13 20:58:09,219 INFO L136 LiptonReduction]: Total number of compositions: 442 [2022-12-13 20:58:09,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:58:09,236 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;@4e22e082, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:58:09,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 20:58:09,246 INFO L130 PetriNetUnfolder]: 2/10 cut-off events. [2022-12-13 20:58:09,247 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:58:09,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:58:09,247 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:58:09,248 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 20:58:09,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:58:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1369357599, now seen corresponding path program 1 times [2022-12-13 20:58:09,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:58:09,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212596618] [2022-12-13 20:58:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:58:09,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:58:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:58:10,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:58:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:58:10,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:58:10,638 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:58:10,639 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-13 20:58:10,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-12-13 20:58:10,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-12-13 20:58:10,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-13 20:58:10,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-12-13 20:58:10,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-12-13 20:58:10,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-13 20:58:10,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-13 20:58:10,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-13 20:58:10,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-13 20:58:10,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:58:10,642 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:58:10,647 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:58:10,647 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:58:10,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:58:10 BasicIcfg [2022-12-13 20:58:10,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:58:10,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:58:10,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:58:10,677 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:58:10,677 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:47:17" (3/4) ... [2022-12-13 20:58:10,678 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 20:58:10,719 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:58:10,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:58:10,720 INFO L158 Benchmark]: Toolchain (without parser) took 658987.55ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 99.2MB in the beginning and 57.4MB in the end (delta: 41.8MB). Peak memory consumption was 108.1MB. Max. memory is 16.1GB. [2022-12-13 20:58:10,720 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:58:10,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4670.28ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 98.8MB in the beginning and 119.7MB in the end (delta: -20.9MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2022-12-13 20:58:10,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.92ms. Allocated memory is still 209.7MB. Free memory was 119.7MB in the beginning and 111.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 20:58:10,721 INFO L158 Benchmark]: Boogie Preprocessor took 33.46ms. Allocated memory is still 209.7MB. Free memory was 111.4MB in the beginning and 107.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:58:10,721 INFO L158 Benchmark]: RCFGBuilder took 726.59ms. Allocated memory is still 209.7MB. Free memory was 107.2MB in the beginning and 137.3MB in the end (delta: -30.1MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2022-12-13 20:58:10,722 INFO L158 Benchmark]: TraceAbstraction took 653386.38ms. Allocated memory is still 209.7MB. Free memory was 136.2MB in the beginning and 65.8MB in the end (delta: 70.4MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2022-12-13 20:58:10,722 INFO L158 Benchmark]: Witness Printer took 43.00ms. Allocated memory is still 209.7MB. Free memory was 65.8MB in the beginning and 57.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 20:58:10,723 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4670.28ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 98.8MB in the beginning and 119.7MB in the end (delta: -20.9MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.92ms. Allocated memory is still 209.7MB. Free memory was 119.7MB in the beginning and 111.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.46ms. Allocated memory is still 209.7MB. Free memory was 111.4MB in the beginning and 107.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 726.59ms. Allocated memory is still 209.7MB. Free memory was 107.2MB in the beginning and 137.3MB in the end (delta: -30.1MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * TraceAbstraction took 653386.38ms. Allocated memory is still 209.7MB. Free memory was 136.2MB in the beginning and 65.8MB in the end (delta: 70.4MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Witness Printer took 43.00ms. Allocated memory is still 209.7MB. Free memory was 65.8MB in the beginning and 57.4MB 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: 651.7s, 356 PlacesBefore, 26 PlacesAfterwards, 364 TransitionsBefore, 23 TransitionsAfterwards, 14106 CoEnabledTransitionPairs, 10 FixpointIterations, 199 TrivialSequentialCompositions, 184 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 33 ConcurrentYvCompositions, 11 ChoiceCompositions, 442 TotalNumberOfCompositions, 15987 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13688, independent: 13556, independent conditional: 0, independent unconditional: 13556, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8258, independent: 8221, independent conditional: 0, independent unconditional: 8221, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13688, independent: 5335, independent conditional: 0, independent unconditional: 5335, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 8258, unknown conditional: 0, unknown unconditional: 8258] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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_read_nvram; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((void *)0)) VAL [={-1:4}, ={-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_read_nvram, ((void *)0), whoop_wrapper_read_nvram, ((void *)0))=-5, pthread_t_nvram_llseek={71:0}, pthread_t_read_nvram={69:0}, whoop_buf={64:0}, whoop_cx_dev={57:0}, whoop_file_0={58:0}, whoop_file_1={52:0}, whoop_file_2={62:0}, whoop_file_3={56:0}, whoop_file_4={50:0}, whoop_inode_0={65:0}, whoop_inode_1={55:0}, whoop_inode_2={63:0}, whoop_inode_3={51:0}, whoop_inode_4={61:0}, whoop_int=1, whoop_loff_t={60:0}, whoop_pci_dev={66:0}, whoop_platform_device={53:0}, whoop_poll_table={54:0}, whoop_vm_area_struct={67:0}] [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))=-4, pthread_t_nvram_llseek={71:0}, pthread_t_read_nvram={69:0}, whoop_buf={64:0}, whoop_cx_dev={57:0}, whoop_file_0={58:0}, whoop_file_1={52:0}, whoop_file_2={62:0}, whoop_file_3={56:0}, whoop_file_4={50:0}, whoop_inode_0={65:0}, whoop_inode_1={55:0}, whoop_inode_2={63:0}, whoop_inode_3={51:0}, whoop_inode_4={61:0}, whoop_int=1, whoop_loff_t={60:0}, whoop_pci_dev={66:0}, whoop_platform_device={53:0}, whoop_poll_table={54:0}, whoop_vm_area_struct={67:0}] [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={56:0}, file={56:0}, 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={64:0}, whoop_cx_dev={57:0}, whoop_file_0={58:0}, whoop_file_1={52:0}, whoop_file_2={62:0}, whoop_file_3={56:0}, whoop_file_4={50:0}, whoop_inode_0={65:0}, whoop_inode_1={55:0}, whoop_inode_2={63:0}, whoop_inode_3={51:0}, whoop_inode_4={61:0}, whoop_int=1, whoop_loff_t={60:0}, whoop_pci_dev={66:0}, whoop_platform_device={53:0}, whoop_poll_table={54:0}, whoop_vm_area_struct={67:0}] - UnprovableResult [Line: 6861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6862]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6694]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 510 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 653.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 651.8s, 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, 1.2s 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 20:58:10,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6c537d-1d7c-4c38-a121-204e72d2b7c8/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)