/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:43:39,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:43:39,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:43:39,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:43:39,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:43:39,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:43:39,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:43:39,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:43:39,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:43:39,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:43:39,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:43:39,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:43:39,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:43:39,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:43:39,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:43:39,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:43:39,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:43:39,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:43:39,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:43:39,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:43:39,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:43:39,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:43:39,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:43:39,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:43:39,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:43:39,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:43:39,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:43:39,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:43:39,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:43:39,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:43:39,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:43:39,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:43:39,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:43:39,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:43:39,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:43:39,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:43:39,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:43:39,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:43:39,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:43:39,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:43:39,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:43:39,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 14:43:39,621 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:43:39,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:43:39,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:43:39,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:43:39,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:43:39,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:43:39,625 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:43:39,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:43:39,625 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:43:39,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:43:39,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:43:39,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:43:39,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:43:39,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:43:39,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:43:39,627 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:43:39,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:43:39,627 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:43:39,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:43:39,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:43:39,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:43:39,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:43:39,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:43:39,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:43:39,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:43:39,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:43:39,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:43:39,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:43:39,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:43:39,629 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:43:39,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:43:40,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:43:40,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:43:40,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:43:40,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:43:40,032 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:43:40,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-12 14:43:41,163 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:43:41,658 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:43:41,659 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-12 14:43:41,702 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba2309a49/d1535e847cfe426099a461ddb5c4da05/FLAG135bfac51 [2022-12-12 14:43:41,720 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba2309a49/d1535e847cfe426099a461ddb5c4da05 [2022-12-12 14:43:41,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:43:41,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:43:41,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:43:41,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:43:41,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:43:41,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:43:41" (1/1) ... [2022-12-12 14:43:41,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f8393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:41, skipping insertion in model container [2022-12-12 14:43:41,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:43:41" (1/1) ... [2022-12-12 14:43:41,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:43:41,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:43:42,132 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-12 14:43:42,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:42,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:42,934 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 14:43:42,937 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:43:42,940 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:43:42,948 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:43:43,026 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:43:43,031 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:43:43,112 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 14:43:43,252 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:43:43,258 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:43:43,296 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 14:43:43,300 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 14:43:43,468 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 14:43:43,470 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 14:43:43,472 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 14:43:43,529 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 14:43:43,530 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:43:43,532 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 14:43:43,532 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:43:43,674 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 14:43:43,710 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 14:43:43,871 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 14:43:43,874 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 14:43:43,985 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 14:43:44,104 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 14:43:44,105 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 14:43:44,105 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 14:43:45,010 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 14:43:45,010 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:43:45,013 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:43:45,017 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:43:45,020 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:43:45,544 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-12 14:43:45,550 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-12 14:43:45,555 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-12 14:43:45,565 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-12 14:43:45,566 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-12 14:43:45,569 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-12 14:43:45,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:43:45,611 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:43:45,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-12 14:43:45,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:43:45,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:43:45,722 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 14:43:45,722 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:43:45,722 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:43:45,723 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:43:45,727 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:43:45,728 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:43:45,734 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 14:43:45,745 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:43:45,747 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:43:45,749 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 14:43:45,750 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 14:43:45,756 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 14:43:45,757 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 14:43:45,757 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 14:43:45,761 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 14:43:45,761 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:43:45,761 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 14:43:45,761 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:43:45,771 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 14:43:45,773 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 14:43:45,777 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 14:43:45,778 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 14:43:45,781 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 14:43:45,785 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 14:43:45,785 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 14:43:45,785 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 14:43:45,846 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 14:43:45,847 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:43:45,849 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:43:45,854 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:43:45,858 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:43:45,905 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-12 14:43:45,907 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-12 14:43:45,907 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-12 14:43:45,909 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-12 14:43:45,909 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-12 14:43:45,910 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-12 14:43:45,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:43:46,313 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:43:46,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46 WrapperNode [2022-12-12 14:43:46,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:43:46,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:43:46,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:43:46,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:43:46,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,480 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 16, statements flattened = 282 [2022-12-12 14:43:46,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:43:46,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:43:46,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:43:46,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:43:46,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:43:46,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:43:46,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:43:46,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:43:46,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (1/1) ... [2022-12-12 14:43:46,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:43:46,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:43:46,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 14:43:46,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 14:43:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 14:43:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 14:43:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-12 14:43:46,613 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-12 14:43:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:43:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:43:46,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:43:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-12 14:43:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:43:46,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:43:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 14:43:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:43:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 14:43:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-12 14:43:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:43:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-12 14:43:46,622 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-12 14:43:46,623 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:43:47,047 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:43:47,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:43:47,465 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:43:47,504 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:43:47,504 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 14:43:47,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:43:47 BoogieIcfgContainer [2022-12-12 14:43:47,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:43:47,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:43:47,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:43:47,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:43:47,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:43:41" (1/3) ... [2022-12-12 14:43:47,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55700f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:43:47, skipping insertion in model container [2022-12-12 14:43:47,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:43:46" (2/3) ... [2022-12-12 14:43:47,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55700f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:43:47, skipping insertion in model container [2022-12-12 14:43:47,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:43:47" (3/3) ... [2022-12-12 14:43:47,518 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-12 14:43:47,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:43:47,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 14:43:47,535 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:43:47,598 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 14:43:47,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 293 transitions, 602 flow [2022-12-12 14:43:47,759 INFO L130 PetriNetUnfolder]: 11/291 cut-off events. [2022-12-12 14:43:47,759 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 14:43:47,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 291 events. 11/291 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 228 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 229. Up to 5 conditions per place. [2022-12-12 14:43:47,768 INFO L82 GeneralOperation]: Start removeDead. Operand has 289 places, 293 transitions, 602 flow [2022-12-12 14:43:47,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 283 transitions, 575 flow [2022-12-12 14:43:47,781 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:43:47,806 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 279 places, 283 transitions, 575 flow [2022-12-12 14:43:47,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 283 transitions, 575 flow [2022-12-12 14:43:47,867 INFO L130 PetriNetUnfolder]: 11/283 cut-off events. [2022-12-12 14:43:47,867 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 14:43:47,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 283 events. 11/283 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 227 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 229. Up to 5 conditions per place. [2022-12-12 14:43:47,877 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 279 places, 283 transitions, 575 flow [2022-12-12 14:43:47,877 INFO L226 LiptonReduction]: Number of co-enabled transitions 5460 [2022-12-12 14:45:14,818 WARN L233 SmtUtils]: Spent 10.72s on a formula simplification that was a NOOP. DAG size: 419 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:45:25,354 WARN L233 SmtUtils]: Spent 10.53s on a formula simplification that was a NOOP. DAG size: 407 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:45:41,121 WARN L233 SmtUtils]: Spent 15.76s on a formula simplification that was a NOOP. DAG size: 419 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:45:54,463 WARN L233 SmtUtils]: Spent 13.34s on a formula simplification that was a NOOP. DAG size: 407 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:48:05,824 WARN L233 SmtUtils]: Spent 2.13m on a formula simplification. DAG size of input: 515 DAG size of output: 511 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:48:52,718 WARN L233 SmtUtils]: Spent 46.89s on a formula simplification that was a NOOP. DAG size: 501 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:50:27,337 WARN L233 SmtUtils]: Spent 1.58m on a formula simplification. DAG size of input: 527 DAG size of output: 521 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:51:32,914 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 510 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:51:45,181 INFO L241 LiptonReduction]: Total number of compositions: 268 [2022-12-12 14:51:45,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:51:45,198 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=false, 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;@3922db7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:51:45,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 14:51:45,213 INFO L130 PetriNetUnfolder]: 1/52 cut-off events. [2022-12-12 14:51:45,213 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 14:51:45,214 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:45,214 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:45,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 14:51:45,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash 205073654, now seen corresponding path program 1 times [2022-12-12 14:51:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:45,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448336040] [2022-12-12 14:51:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:45,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:46,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:46,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:46,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448336040] [2022-12-12 14:51:46,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448336040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:46,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:46,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:51:46,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176460854] [2022-12-12 14:51:46,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:46,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:51:46,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:46,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:51:46,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:51:46,352 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 56 [2022-12-12 14:51:46,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:51:46,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:46,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 56 [2022-12-12 14:51:46,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:47,141 INFO L130 PetriNetUnfolder]: 1394/2513 cut-off events. [2022-12-12 14:51:47,141 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-12-12 14:51:47,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5082 conditions, 2513 events. 1394/2513 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 16442 event pairs, 730 based on Foata normal form. 0/1181 useless extension candidates. Maximal degree in co-relation 4990. Up to 1773 conditions per place. [2022-12-12 14:51:47,153 INFO L137 encePairwiseOnDemand]: 25/56 looper letters, 20 selfloop transitions, 30 changer transitions 48/101 dead transitions. [2022-12-12 14:51:47,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 101 transitions, 410 flow [2022-12-12 14:51:47,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:51:47,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:51:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2022-12-12 14:51:47,165 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2022-12-12 14:51:47,167 INFO L175 Difference]: Start difference. First operand has 62 places, 56 transitions, 121 flow. Second operand 3 states and 108 transitions. [2022-12-12 14:51:47,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 101 transitions, 410 flow [2022-12-12 14:51:47,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 101 transitions, 403 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:51:47,175 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 214 flow [2022-12-12 14:51:47,177 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2022-12-12 14:51:47,180 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 0 predicate places. [2022-12-12 14:51:47,180 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 214 flow [2022-12-12 14:51:47,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:51:47,181 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:47,181 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:47,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:51:47,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 14:51:47,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:47,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2062317723, now seen corresponding path program 1 times [2022-12-12 14:51:47,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:47,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616690418] [2022-12-12 14:51:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:47,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:47,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:47,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616690418] [2022-12-12 14:51:47,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616690418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:47,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:47,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:51:47,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739363156] [2022-12-12 14:51:47,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:47,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 14:51:47,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:47,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 14:51:47,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 14:51:47,821 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 56 [2022-12-12 14:51:47,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:51:47,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:47,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 56 [2022-12-12 14:51:47,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:48,222 INFO L130 PetriNetUnfolder]: 244/516 cut-off events. [2022-12-12 14:51:48,223 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-12-12 14:51:48,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 516 events. 244/516 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 2936 event pairs, 34 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 724. Up to 357 conditions per place. [2022-12-12 14:51:48,225 INFO L137 encePairwiseOnDemand]: 51/56 looper letters, 48 selfloop transitions, 2 changer transitions 18/71 dead transitions. [2022-12-12 14:51:48,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 71 transitions, 413 flow [2022-12-12 14:51:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 14:51:48,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 14:51:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2022-12-12 14:51:48,228 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-12 14:51:48,228 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 214 flow. Second operand 4 states and 80 transitions. [2022-12-12 14:51:48,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 71 transitions, 413 flow [2022-12-12 14:51:48,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 71 transitions, 386 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:51:48,232 INFO L231 Difference]: Finished difference. Result has 49 places, 48 transitions, 176 flow [2022-12-12 14:51:48,232 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2022-12-12 14:51:48,233 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, -13 predicate places. [2022-12-12 14:51:48,233 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 176 flow [2022-12-12 14:51:48,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:51:48,234 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:48,234 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:48,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:51:48,234 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 14:51:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash 2062318033, now seen corresponding path program 1 times [2022-12-12 14:51:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:48,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027657687] [2022-12-12 14:51:48,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:48,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:49,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:49,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027657687] [2022-12-12 14:51:49,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027657687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:49,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:49,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:51:49,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298493585] [2022-12-12 14:51:49,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:49,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 14:51:49,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 14:51:49,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 14:51:49,642 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 56 [2022-12-12 14:51:49,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:51:49,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:49,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 56 [2022-12-12 14:51:49,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:50,224 INFO L130 PetriNetUnfolder]: 169/360 cut-off events. [2022-12-12 14:51:50,224 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-12-12 14:51:50,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 360 events. 169/360 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 1918 event pairs, 32 based on Foata normal form. 80/249 useless extension candidates. Maximal degree in co-relation 514. Up to 202 conditions per place. [2022-12-12 14:51:50,226 INFO L137 encePairwiseOnDemand]: 52/56 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2022-12-12 14:51:50,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 70 transitions, 384 flow [2022-12-12 14:51:50,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:51:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:51:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2022-12-12 14:51:50,227 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.2714285714285714 [2022-12-12 14:51:50,227 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 176 flow. Second operand 5 states and 76 transitions. [2022-12-12 14:51:50,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 70 transitions, 384 flow [2022-12-12 14:51:50,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 70 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:51:50,229 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2022-12-12 14:51:50,229 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2022-12-12 14:51:50,229 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, -12 predicate places. [2022-12-12 14:51:50,230 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2022-12-12 14:51:50,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 14:51:50,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-12-12 14:51:50,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 14:51:50,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-12-12 14:51:50,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-12 14:51:50,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:51:50,233 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-12 14:51:50,237 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 14:51:50,237 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 14:51:50,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 02:51:50 BasicIcfg [2022-12-12 14:51:50,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 14:51:50,241 INFO L158 Benchmark]: Toolchain (without parser) took 488516.95ms. Allocated memory was 173.0MB in the beginning and 300.9MB in the end (delta: 127.9MB). Free memory was 137.8MB in the beginning and 164.4MB in the end (delta: -26.6MB). Peak memory consumption was 208.2MB. Max. memory is 8.0GB. [2022-12-12 14:51:50,241 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 14:51:50,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4587.30ms. Allocated memory was 173.0MB in the beginning and 208.7MB in the end (delta: 35.7MB). Free memory was 137.3MB in the beginning and 92.2MB in the end (delta: 45.1MB). Peak memory consumption was 96.4MB. Max. memory is 8.0GB. [2022-12-12 14:51:50,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 166.78ms. Allocated memory is still 208.7MB. Free memory was 92.2MB in the beginning and 83.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-12-12 14:51:50,242 INFO L158 Benchmark]: Boogie Preprocessor took 54.12ms. Allocated memory is still 208.7MB. Free memory was 83.3MB in the beginning and 79.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-12 14:51:50,242 INFO L158 Benchmark]: RCFGBuilder took 970.17ms. Allocated memory is still 208.7MB. Free memory was 79.1MB in the beginning and 131.7MB in the end (delta: -52.6MB). Peak memory consumption was 25.5MB. Max. memory is 8.0GB. [2022-12-12 14:51:50,242 INFO L158 Benchmark]: TraceAbstraction took 482731.91ms. Allocated memory was 208.7MB in the beginning and 300.9MB in the end (delta: 92.3MB). Free memory was 130.1MB in the beginning and 164.4MB in the end (delta: -34.2MB). Peak memory consumption was 164.5MB. Max. memory is 8.0GB. [2022-12-12 14:51:50,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4587.30ms. Allocated memory was 173.0MB in the beginning and 208.7MB in the end (delta: 35.7MB). Free memory was 137.3MB in the beginning and 92.2MB in the end (delta: 45.1MB). Peak memory consumption was 96.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 166.78ms. Allocated memory is still 208.7MB. Free memory was 92.2MB in the beginning and 83.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.12ms. Allocated memory is still 208.7MB. Free memory was 83.3MB in the beginning and 79.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 970.17ms. Allocated memory is still 208.7MB. Free memory was 79.1MB in the beginning and 131.7MB in the end (delta: -52.6MB). Peak memory consumption was 25.5MB. Max. memory is 8.0GB. * TraceAbstraction took 482731.91ms. Allocated memory was 208.7MB in the beginning and 300.9MB in the end (delta: 92.3MB). Free memory was 130.1MB in the beginning and 164.4MB in the end (delta: -34.2MB). Peak memory consumption was 164.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 477.3s, 279 PlacesBefore, 62 PlacesAfterwards, 283 TransitionsBefore, 56 TransitionsAfterwards, 5460 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 175 TrivialYvCompositions, 83 ConcurrentYvCompositions, 6 ChoiceCompositions, 268 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7964, independent: 7869, independent conditional: 7869, independent unconditional: 0, dependent: 79, dependent conditional: 79, dependent unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7964, independent: 7869, independent conditional: 0, independent unconditional: 7869, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7964, independent: 7869, independent conditional: 0, independent unconditional: 7869, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7964, independent: 7869, independent conditional: 0, independent unconditional: 7869, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4565, independent: 4536, independent conditional: 0, independent unconditional: 4536, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4565, independent: 4511, independent conditional: 0, independent unconditional: 4511, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8805, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 194, dependent conditional: 0, dependent unconditional: 194, unknown: 8579, unknown conditional: 0, unknown unconditional: 8579] ], Cache Queries: [ total: 7964, independent: 3333, independent conditional: 0, independent unconditional: 3333, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 4577, unknown conditional: 0, unknown unconditional: 4577] , Statistics on independence cache: Total cache size (in pairs): 14012, Positive cache size: 13987, Positive conditional cache size: 0, Positive unconditional cache size: 13987, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 4, Unknown conditional cache size: 0, Unknown unconditional cache size: 4, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 370 locations, 4 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: 482.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 477.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 0 mSDtfsCounter, 372 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 2.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 14:51:50,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...