/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 12:08:29,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:08:29,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:08:29,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:08:29,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:08:29,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:08:29,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:08:29,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:08:29,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:08:29,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:08:29,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:08:29,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:08:29,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:08:29,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:08:29,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:08:29,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:08:29,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:08:29,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:08:29,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:08:29,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:08:29,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:08:29,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:08:29,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:08:29,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:08:29,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:08:29,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:08:29,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:08:29,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:08:29,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:08:29,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:08:29,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:08:29,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:08:29,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:08:29,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:08:29,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:08:29,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:08:29,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:08:29,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:08:29,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:08:29,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:08:29,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:08:29,836 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-13 12:08:29,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:08:29,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:08:29,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:08:29,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:08:29,858 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:08:29,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:08:29,858 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:08:29,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:08:29,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:08:29,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:08:29,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:08:29,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:08:29,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:08:29,859 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:08:29,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:08:29,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:08:29,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:08:29,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:08:29,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:08:29,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 12:08:29,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 12:08:30,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:08:30,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:08:30,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:08:30,284 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:08:30,284 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:08:30,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-13 12:08:31,292 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:08:31,664 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:08:31,665 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-13 12:08:31,702 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57eae4760/bc3cec6898e94a1c8b560b6d87e90492/FLAG7dd14a12e [2022-12-13 12:08:31,718 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57eae4760/bc3cec6898e94a1c8b560b6d87e90492 [2022-12-13 12:08:31,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:08:31,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 12:08:31,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:08:31,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:08:31,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:08:31,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:08:31" (1/1) ... [2022-12-13 12:08:31,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f8557c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:31, skipping insertion in model container [2022-12-13 12:08:31,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:08:31" (1/1) ... [2022-12-13 12:08:31,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:08:31,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:08:32,143 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_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 12:08:32,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:32,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:32,919 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 12:08:32,927 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 12:08:32,933 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 12:08:32,949 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 12:08:33,112 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 12:08:33,119 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 12:08:33,293 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 12:08:33,569 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 12:08:33,581 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 12:08:33,710 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 12:08:33,713 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 12:08:33,916 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 12:08:33,919 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 12:08:33,921 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 12:08:33,978 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 12:08:33,978 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 12:08:33,980 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 12:08:33,980 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 12:08:34,067 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 12:08:34,086 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 12:08:34,176 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 12:08:34,179 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 12:08:34,267 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 12:08:34,374 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 12:08:34,374 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 12:08:34,375 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 12:08:34,985 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 12:08:34,986 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 12:08:34,991 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 12:08:34,996 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 12:08:35,002 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 12:08:35,404 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 12:08:35,409 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 12:08:35,415 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 12:08:35,424 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 12:08:35,424 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 12:08:35,427 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 12:08:35,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:08:35,464 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:08:35,485 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_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 12:08:35,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:08:35,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:08:35,524 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 12:08:35,525 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 12:08:35,525 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 12:08:35,526 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 12:08:35,529 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 12:08:35,530 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 12:08:35,535 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 12:08:35,545 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 12:08:35,545 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 12:08:35,547 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 12:08:35,548 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 12:08:35,556 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 12:08:35,556 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 12:08:35,556 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 12:08:35,560 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 12:08:35,560 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 12:08:35,561 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 12:08:35,561 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 12:08:35,568 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 12:08:35,570 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 12:08:35,574 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 12:08:35,574 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 12:08:35,577 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 12:08:35,581 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 12:08:35,582 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 12:08:35,582 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 12:08:35,630 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 12:08:35,631 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 12:08:35,633 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 12:08:35,637 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 12:08:35,641 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 12:08:35,678 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 12:08:35,680 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 12:08:35,680 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 12:08:35,682 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 12:08:35,682 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 12:08:35,682 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 12:08:35,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:08:35,982 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:08:35,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35 WrapperNode [2022-12-13 12:08:35,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:08:35,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:08:35,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:08:35,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:08:35,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,106 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-13 12:08:36,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:08:36,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:08:36,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:08:36,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:08:36,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:08:36,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:08:36,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:08:36,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:08:36,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (1/1) ... [2022-12-13 12:08:36,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:08:36,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 12:08:36,197 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) [2022-12-13 12:08:36,204 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 [2022-12-13 12:08:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:08:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 12:08:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 12:08:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:08:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-13 12:08:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 12:08:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:08:36,230 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 12:08:36,539 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 12:08:36,540 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:08:36,881 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 12:08:36,916 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:08:36,916 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 12:08:36,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:08:36 BoogieIcfgContainer [2022-12-13 12:08:36,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:08:36,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:08:36,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:08:36,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:08:36,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:08:31" (1/3) ... [2022-12-13 12:08:36,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d14df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:08:36, skipping insertion in model container [2022-12-13 12:08:36,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:08:35" (2/3) ... [2022-12-13 12:08:36,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d14df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:08:36, skipping insertion in model container [2022-12-13 12:08:36,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:08:36" (3/3) ... [2022-12-13 12:08:36,922 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-13 12:08:36,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:08:36,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 12:08:36,934 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:08:37,010 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 12:08:37,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 332 transitions, 680 flow [2022-12-13 12:08:37,206 INFO L130 PetriNetUnfolder]: 11/330 cut-off events. [2022-12-13 12:08:37,206 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 12:08:37,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 330 events. 11/330 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 307 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 275. Up to 4 conditions per place. [2022-12-13 12:08:37,215 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 332 transitions, 680 flow [2022-12-13 12:08:37,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 322 transitions, 653 flow [2022-12-13 12:08:37,224 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:08:37,240 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 318 places, 322 transitions, 653 flow [2022-12-13 12:08:37,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 322 transitions, 653 flow [2022-12-13 12:08:37,294 INFO L130 PetriNetUnfolder]: 11/322 cut-off events. [2022-12-13 12:08:37,294 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 12:08:37,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 322 events. 11/322 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 288 event pairs, 0 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 275. Up to 4 conditions per place. [2022-12-13 12:08:37,306 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 318 places, 322 transitions, 653 flow [2022-12-13 12:08:37,306 INFO L226 LiptonReduction]: Number of co-enabled transitions 9480 [2022-12-13 12:09:50,578 WARN L233 SmtUtils]: Spent 13.63s on a formula simplification that was a NOOP. DAG size: 490 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:10:00,894 WARN L233 SmtUtils]: Spent 10.29s on a formula simplification that was a NOOP. DAG size: 426 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:10:17,828 WARN L233 SmtUtils]: Spent 16.93s on a formula simplification that was a NOOP. DAG size: 490 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:10:32,798 WARN L233 SmtUtils]: Spent 14.96s on a formula simplification that was a NOOP. DAG size: 426 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:12:24,198 WARN L233 SmtUtils]: Spent 1.79m on a formula simplification. DAG size of input: 517 DAG size of output: 513 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:13:14,819 WARN L233 SmtUtils]: Spent 50.61s 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) [2022-12-13 12:15:24,855 WARN L233 SmtUtils]: Spent 2.17m on a formula simplification. DAG size of input: 529 DAG size of output: 523 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:16:38,210 WARN L233 SmtUtils]: Spent 1.22m 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) [2022-12-13 12:16:43,020 INFO L241 LiptonReduction]: Total number of compositions: 307 [2022-12-13 12:16:43,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:16:43,063 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=REPEATED_LIPTON_PN, 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;@9a76a52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 12:16:43,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 12:16:43,076 INFO L130 PetriNetUnfolder]: 4/60 cut-off events. [2022-12-13 12:16:43,076 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 12:16:43,076 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:16:43,077 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:16:43,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 12:16:43,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash 5947335, now seen corresponding path program 1 times [2022-12-13 12:16:43,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:43,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481593846] [2022-12-13 12:16:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:43,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:43,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:43,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:43,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481593846] [2022-12-13 12:16:43,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481593846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:43,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:43,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:16:43,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866811529] [2022-12-13 12:16:43,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:43,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:16:43,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:16:43,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:16:43,569 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 63 [2022-12-13 12:16:43,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 135 flow. Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-12-13 12:16:43,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:16:43,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 63 [2022-12-13 12:16:43,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:16:44,190 INFO L130 PetriNetUnfolder]: 1743/2708 cut-off events. [2022-12-13 12:16:44,191 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2022-12-13 12:16:44,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5467 conditions, 2708 events. 1743/2708 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 14596 event pairs, 1368 based on Foata normal form. 0/1056 useless extension candidates. Maximal degree in co-relation 5101. Up to 2700 conditions per place. [2022-12-13 12:16:44,203 INFO L137 encePairwiseOnDemand]: 62/63 looper letters, 54 selfloop transitions, 0 changer transitions 5/62 dead transitions. [2022-12-13 12:16:44,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 251 flow [2022-12-13 12:16:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:16:44,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:16:44,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 66 transitions. [2022-12-13 12:16:44,215 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2022-12-13 12:16:44,216 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 135 flow. Second operand 2 states and 66 transitions. [2022-12-13 12:16:44,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 251 flow [2022-12-13 12:16:44,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 62 transitions, 246 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 12:16:44,221 INFO L231 Difference]: Finished difference. Result has 64 places, 57 transitions, 117 flow [2022-12-13 12:16:44,223 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=117, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2022-12-13 12:16:44,227 INFO L295 CegarLoopForPetriNet]: 66 programPoint places, -2 predicate places. [2022-12-13 12:16:44,227 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:16:44,228 INFO L89 Accepts]: Start accepts. Operand has 64 places, 57 transitions, 117 flow [2022-12-13 12:16:44,229 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:16:44,230 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:16:44,230 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 57 transitions, 117 flow [2022-12-13 12:16:44,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 57 transitions, 117 flow [2022-12-13 12:16:44,251 INFO L130 PetriNetUnfolder]: 1/57 cut-off events. [2022-12-13 12:16:44,252 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:16:44,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 1/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 353 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2022-12-13 12:16:44,254 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 57 transitions, 117 flow [2022-12-13 12:16:44,254 INFO L226 LiptonReduction]: Number of co-enabled transitions 828 [2022-12-13 12:16:46,554 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 12:16:46,555 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2328 [2022-12-13 12:16:46,555 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 56 transitions, 115 flow [2022-12-13 12:16:46,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-12-13 12:16:46,555 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:16:46,555 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:16:46,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:16:46,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 12:16:46,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:46,556 INFO L85 PathProgramCache]: Analyzing trace with hash 5939096, now seen corresponding path program 1 times [2022-12-13 12:16:46,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:46,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802397175] [2022-12-13 12:16:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:46,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:46,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:46,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:46,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802397175] [2022-12-13 12:16:46,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802397175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:46,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:46,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:16:46,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682106724] [2022-12-13 12:16:46,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:46,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:16:46,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:46,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:16:46,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:16:46,993 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 56 [2022-12-13 12:16:46,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 56 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-12-13 12:16:46,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:16:46,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 56 [2022-12-13 12:16:46,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:16:47,828 INFO L130 PetriNetUnfolder]: 1084/1836 cut-off events. [2022-12-13 12:16:47,828 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:16:47,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3678 conditions, 1836 events. 1084/1836 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 11130 event pairs, 671 based on Foata normal form. 125/918 useless extension candidates. Maximal degree in co-relation 1760. Up to 1589 conditions per place. [2022-12-13 12:16:47,832 INFO L137 encePairwiseOnDemand]: 24/56 looper letters, 52 selfloop transitions, 31 changer transitions 16/102 dead transitions. [2022-12-13 12:16:47,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 102 transitions, 407 flow [2022-12-13 12:16:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:16:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:16:47,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2022-12-13 12:16:47,834 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6488095238095238 [2022-12-13 12:16:47,834 INFO L175 Difference]: Start difference. First operand has 59 places, 56 transitions, 115 flow. Second operand 3 states and 109 transitions. [2022-12-13 12:16:47,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 102 transitions, 407 flow [2022-12-13 12:16:47,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 102 transitions, 407 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:16:47,836 INFO L231 Difference]: Finished difference. Result has 62 places, 83 transitions, 324 flow [2022-12-13 12:16:47,836 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=62, PETRI_TRANSITIONS=83} [2022-12-13 12:16:47,837 INFO L295 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2022-12-13 12:16:47,837 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:16:47,837 INFO L89 Accepts]: Start accepts. Operand has 62 places, 83 transitions, 324 flow [2022-12-13 12:16:47,838 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:16:47,838 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:16:47,838 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 83 transitions, 324 flow [2022-12-13 12:16:47,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 83 transitions, 324 flow [2022-12-13 12:16:47,883 INFO L130 PetriNetUnfolder]: 59/215 cut-off events. [2022-12-13 12:16:47,884 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-12-13 12:16:47,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 215 events. 59/215 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 1697 event pairs, 29 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 222. Up to 149 conditions per place. [2022-12-13 12:16:47,886 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 83 transitions, 324 flow [2022-12-13 12:16:47,886 INFO L226 LiptonReduction]: Number of co-enabled transitions 752 [2022-12-13 12:16:47,894 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:16:47,895 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 58 [2022-12-13 12:16:47,895 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 83 transitions, 324 flow [2022-12-13 12:16:47,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-12-13 12:16:47,896 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:16:47,896 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:47,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:16:47,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 12:16:47,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:47,896 INFO L85 PathProgramCache]: Analyzing trace with hash 184111756, now seen corresponding path program 1 times [2022-12-13 12:16:47,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:47,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250845344] [2022-12-13 12:16:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:47,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:48,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:48,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:48,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250845344] [2022-12-13 12:16:48,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250845344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:48,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:48,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:16:48,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492852670] [2022-12-13 12:16:48,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:48,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:16:48,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:48,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:16:48,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:16:48,850 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 53 [2022-12-13 12:16:48,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 83 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-12-13 12:16:48,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:16:48,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 53 [2022-12-13 12:16:48,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:16:49,874 INFO L130 PetriNetUnfolder]: 953/1655 cut-off events. [2022-12-13 12:16:49,875 INFO L131 PetriNetUnfolder]: For 175/175 co-relation queries the response was YES. [2022-12-13 12:16:49,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4077 conditions, 1655 events. 953/1655 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 10514 event pairs, 98 based on Foata normal form. 34/902 useless extension candidates. Maximal degree in co-relation 3712. Up to 1162 conditions per place. [2022-12-13 12:16:49,910 INFO L137 encePairwiseOnDemand]: 20/53 looper letters, 25 selfloop transitions, 54 changer transitions 79/161 dead transitions. [2022-12-13 12:16:49,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 161 transitions, 904 flow [2022-12-13 12:16:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:16:49,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:16:49,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2022-12-13 12:16:49,931 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5735849056603773 [2022-12-13 12:16:49,931 INFO L175 Difference]: Start difference. First operand has 59 places, 83 transitions, 324 flow. Second operand 5 states and 152 transitions. [2022-12-13 12:16:49,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 161 transitions, 904 flow [2022-12-13 12:16:49,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 161 transitions, 873 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:16:49,943 INFO L231 Difference]: Finished difference. Result has 63 places, 74 transitions, 441 flow [2022-12-13 12:16:49,943 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=441, PETRI_PLACES=63, PETRI_TRANSITIONS=74} [2022-12-13 12:16:49,944 INFO L295 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2022-12-13 12:16:49,944 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:16:49,944 INFO L89 Accepts]: Start accepts. Operand has 63 places, 74 transitions, 441 flow [2022-12-13 12:16:49,945 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:16:49,945 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:16:49,945 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 74 transitions, 441 flow [2022-12-13 12:16:49,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 74 transitions, 441 flow [2022-12-13 12:16:49,990 INFO L130 PetriNetUnfolder]: 37/130 cut-off events. [2022-12-13 12:16:49,990 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-13 12:16:49,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 130 events. 37/130 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 739 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 283. Up to 105 conditions per place. [2022-12-13 12:16:49,991 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 74 transitions, 441 flow [2022-12-13 12:16:49,992 INFO L226 LiptonReduction]: Number of co-enabled transitions 468 [2022-12-13 12:16:50,019 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:16:50,020 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 76 [2022-12-13 12:16:50,020 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 74 transitions, 441 flow [2022-12-13 12:16:50,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-12-13 12:16:50,020 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:16:50,021 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:50,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:16:50,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 12:16:50,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:50,021 INFO L85 PathProgramCache]: Analyzing trace with hash 386316091, now seen corresponding path program 1 times [2022-12-13 12:16:50,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:50,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889912347] [2022-12-13 12:16:50,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:50,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:56,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:56,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:56,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889912347] [2022-12-13 12:16:56,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889912347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:56,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:56,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:16:56,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202443173] [2022-12-13 12:16:56,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:56,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:16:56,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:56,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:16:56,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:16:56,729 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 43 [2022-12-13 12:16:56,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 74 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-12-13 12:16:56,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:16:56,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 43 [2022-12-13 12:16:56,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:16:57,172 INFO L130 PetriNetUnfolder]: 368/755 cut-off events. [2022-12-13 12:16:57,177 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-12-13 12:16:57,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2390 conditions, 755 events. 368/755 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 4883 event pairs, 153 based on Foata normal form. 87/466 useless extension candidates. Maximal degree in co-relation 1282. Up to 490 conditions per place. [2022-12-13 12:16:57,180 INFO L137 encePairwiseOnDemand]: 38/43 looper letters, 36 selfloop transitions, 4 changer transitions 54/96 dead transitions. [2022-12-13 12:16:57,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 96 transitions, 709 flow [2022-12-13 12:16:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:16:57,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:16:57,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 101 transitions. [2022-12-13 12:16:57,184 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4697674418604651 [2022-12-13 12:16:57,184 INFO L175 Difference]: Start difference. First operand has 53 places, 74 transitions, 441 flow. Second operand 5 states and 101 transitions. [2022-12-13 12:16:57,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 96 transitions, 709 flow [2022-12-13 12:16:57,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 96 transitions, 653 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 12:16:57,188 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 211 flow [2022-12-13 12:16:57,189 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=211, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2022-12-13 12:16:57,189 INFO L295 CegarLoopForPetriNet]: 66 programPoint places, -11 predicate places. [2022-12-13 12:16:57,189 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:16:57,189 INFO L89 Accepts]: Start accepts. Operand has 55 places, 42 transitions, 211 flow [2022-12-13 12:16:57,190 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:16:57,190 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:16:57,190 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 42 transitions, 211 flow [2022-12-13 12:16:57,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 42 transitions, 211 flow [2022-12-13 12:16:57,207 INFO L130 PetriNetUnfolder]: 8/77 cut-off events. [2022-12-13 12:16:57,207 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-13 12:16:57,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 77 events. 8/77 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 459 event pairs, 7 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 216. Up to 67 conditions per place. [2022-12-13 12:16:57,208 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 42 transitions, 211 flow [2022-12-13 12:16:57,208 INFO L226 LiptonReduction]: Number of co-enabled transitions 188 [2022-12-13 12:16:57,238 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:16:57,239 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-13 12:16:57,243 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 12:16:57,244 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-13 12:16:57,248 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [1250] L6861-3-->L6862-3: Formula: (and (= (store |v_#memory_int_487| |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35| (store (select |v_#memory_int_487| |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35|) |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset_35| |v_ULTIMATE.start_main_#t~pre1183#1_29|)) |v_#memory_int_486|) (= |v_ULTIMATE.start_main_#t~pre1183#1_29| |v_#pthreadsForks_48|) (= (store |v_#memory_$Pointer$.base_360| |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35| (store (select |v_#memory_$Pointer$.base_360| |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35|) |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset_35| (select (select |v_#memory_$Pointer$.base_359| |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35|) |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset_35|))) |v_#memory_$Pointer$.base_359|) (= (store |v_#memory_$Pointer$.offset_360| |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35| (store (select |v_#memory_$Pointer$.offset_360| |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35|) |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset_35| (select (select |v_#memory_$Pointer$.offset_359| |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35|) |v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset_35|))) |v_#memory_$Pointer$.offset_359|) (= (+ |v_#pthreadsForks_48| 1) |v_#pthreadsForks_47|)) InVars {ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset=|v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset_35|, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_360|, #pthreadsForks=|v_#pthreadsForks_48|, ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base=|v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35|, #memory_int=|v_#memory_int_487|, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_360|} OutVars{ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset=|v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.offset_35|, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_359|, #pthreadsForks=|v_#pthreadsForks_47|, ULTIMATE.start_main_#t~pre1181#1=|v_ULTIMATE.start_main_#t~pre1181#1_27|, ULTIMATE.start_main_#t~pre1183#1=|v_ULTIMATE.start_main_#t~pre1183#1_29|, ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base=|v_ULTIMATE.start_main_~#pthread_t_nvram_unlocked_ioctl~0#1.base_35|, #memory_int=|v_#memory_int_486|, ULTIMATE.start_main_#t~nondet1182#1=|v_ULTIMATE.start_main_#t~nondet1182#1_11|, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_359|} AuxVars[] AssignedVars[#memory_$Pointer$.base, #pthreadsForks, ULTIMATE.start_main_#t~pre1181#1, ULTIMATE.start_main_#t~pre1183#1, #memory_int, ULTIMATE.start_main_#t~nondet1182#1, #memory_$Pointer$.offset] and [954] L6717-14-->L6720: Formula: (let ((.cse0 (mod |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~i~1#1_33| 4294967296))) (and (= (store |v_#memory_$Pointer$.offset_46| |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23| (store (select |v_#memory_$Pointer$.offset_46| |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23|) |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset_23| (select (select |v_#memory_$Pointer$.offset_45| |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23|) |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset_23|))) |v_#memory_$Pointer$.offset_45|) (= |v_#memory_int_75| (store |v_#memory_int_76| |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23| (store (select |v_#memory_int_76| |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23|) |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset_23| .cse0))) (= |v_#memory_$Pointer$.base_45| (store |v_#memory_$Pointer$.base_46| |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23| (store (select |v_#memory_$Pointer$.base_46| |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23|) |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset_23| (select (select |v_#memory_$Pointer$.base_45| |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23|) |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset_23|)))) (or (not (< 0 (mod |v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~count#1_25| 4294967296))) (not (< .cse0 (mod v_~nvram_len~0_14 4294967296)))))) InVars {whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base=|v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23|, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_46|, #memory_int=|v_#memory_int_76|, whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~count#1=|v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~count#1_25|, ~nvram_len~0=v_~nvram_len~0_14, whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset=|v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset_23|, whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~i~1#1=|v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~i~1#1_33|, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_46|} OutVars{whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base=|v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.base_23|, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_45|, #memory_int=|v_#memory_int_75|, whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~count#1=|v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~count#1_25|, ~nvram_len~0=v_~nvram_len~0_14, whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset=|v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~ppos#1.offset_23|, whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~i~1#1=|v_whoop_wrapper_read_nvramThread1of1ForFork0_read_nvram_~i~1#1_33|, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_45|} AuxVars[] AssignedVars[#memory_$Pointer$.base, #memory_int, #memory_$Pointer$.offset] [2022-12-13 12:16:57,713 INFO L241 LiptonReduction]: Total number of compositions: 2 [2022-12-13 12:16:57,714 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 525 [2022-12-13 12:16:57,714 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 219 flow [2022-12-13 12:16:57,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-12-13 12:16:57,714 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:16:57,714 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:16:57,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:16:57,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 12:16:57,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:16:57,715 INFO L85 PathProgramCache]: Analyzing trace with hash 2102510699, now seen corresponding path program 1 times [2022-12-13 12:16:57,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:16:57,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868083712] [2022-12-13 12:16:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:16:57,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:16:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:16:58,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:16:58,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:16:58,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868083712] [2022-12-13 12:16:58,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868083712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:16:58,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:16:58,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:16:58,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421236189] [2022-12-13 12:16:58,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:16:58,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:16:58,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:16:58,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:16:58,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:16:58,686 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 42 [2022-12-13 12:16:58,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-12-13 12:16:58,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:16:58,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 42 [2022-12-13 12:16:58,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:16:59,033 INFO L130 PetriNetUnfolder]: 59/156 cut-off events. [2022-12-13 12:16:59,034 INFO L131 PetriNetUnfolder]: For 361/361 co-relation queries the response was YES. [2022-12-13 12:16:59,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 156 events. 59/156 cut-off events. For 361/361 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 829 event pairs, 58 based on Foata normal form. 87/132 useless extension candidates. Maximal degree in co-relation 458. Up to 150 conditions per place. [2022-12-13 12:16:59,034 INFO L137 encePairwiseOnDemand]: 38/42 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2022-12-13 12:16:59,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 40 transitions, 277 flow [2022-12-13 12:16:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:16:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:16:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2022-12-13 12:16:59,035 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.23333333333333334 [2022-12-13 12:16:59,035 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 219 flow. Second operand 5 states and 49 transitions. [2022-12-13 12:16:59,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 40 transitions, 277 flow [2022-12-13 12:16:59,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 40 transitions, 162 flow, removed 29 selfloop flow, removed 8 redundant places. [2022-12-13 12:16:59,037 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2022-12-13 12:16:59,037 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2022-12-13 12:16:59,039 INFO L295 CegarLoopForPetriNet]: 66 programPoint places, -17 predicate places. [2022-12-13 12:16:59,039 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:16:59,039 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 0 transitions, 0 flow [2022-12-13 12:16:59,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 12:16:59,040 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:16:59,040 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:16:59,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 12:16:59,040 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 12:16:59,040 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 12:16:59,040 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:16:59,041 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 12:16:59,041 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 12:16:59,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-12-13 12:16:59,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 12:16:59,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 12:16:59,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 12:16:59,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 12:16:59,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:16:59,044 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 12:16:59,048 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:16:59,048 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:16:59,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:16:59 BasicIcfg [2022-12-13 12:16:59,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:16:59,053 INFO L158 Benchmark]: Toolchain (without parser) took 507330.23ms. Allocated memory was 185.6MB in the beginning and 757.1MB in the end (delta: 571.5MB). Free memory was 151.5MB in the beginning and 354.3MB in the end (delta: -202.8MB). Peak memory consumption was 367.6MB. Max. memory is 8.0GB. [2022-12-13 12:16:59,053 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory was 162.9MB in the beginning and 162.8MB in the end (delta: 71.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 12:16:59,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4257.79ms. Allocated memory was 185.6MB in the beginning and 226.5MB in the end (delta: 40.9MB). Free memory was 151.0MB in the beginning and 148.2MB in the end (delta: 2.8MB). Peak memory consumption was 107.6MB. Max. memory is 8.0GB. [2022-12-13 12:16:59,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.87ms. Allocated memory is still 226.5MB. Free memory was 148.2MB in the beginning and 139.3MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-12-13 12:16:59,054 INFO L158 Benchmark]: Boogie Preprocessor took 43.98ms. Allocated memory is still 226.5MB. Free memory was 139.3MB in the beginning and 135.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-13 12:16:59,054 INFO L158 Benchmark]: RCFGBuilder took 765.59ms. Allocated memory is still 226.5MB. Free memory was 135.1MB in the beginning and 93.1MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2022-12-13 12:16:59,054 INFO L158 Benchmark]: TraceAbstraction took 502133.58ms. Allocated memory was 226.5MB in the beginning and 757.1MB in the end (delta: 530.6MB). Free memory was 92.1MB in the beginning and 354.3MB in the end (delta: -262.1MB). Peak memory consumption was 267.9MB. Max. memory is 8.0GB. [2022-12-13 12:16:59,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory was 162.9MB in the beginning and 162.8MB in the end (delta: 71.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4257.79ms. Allocated memory was 185.6MB in the beginning and 226.5MB in the end (delta: 40.9MB). Free memory was 151.0MB in the beginning and 148.2MB in the end (delta: 2.8MB). Peak memory consumption was 107.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 122.87ms. Allocated memory is still 226.5MB. Free memory was 148.2MB in the beginning and 139.3MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.98ms. Allocated memory is still 226.5MB. Free memory was 139.3MB in the beginning and 135.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 765.59ms. Allocated memory is still 226.5MB. Free memory was 135.1MB in the beginning and 93.1MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * TraceAbstraction took 502133.58ms. Allocated memory was 226.5MB in the beginning and 757.1MB in the end (delta: 530.6MB). Free memory was 92.1MB in the beginning and 354.3MB in the end (delta: -262.1MB). Peak memory consumption was 267.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 485.7s, 318 PlacesBefore, 66 PlacesAfterwards, 322 TransitionsBefore, 63 TransitionsAfterwards, 9480 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 175 TrivialYvCompositions, 121 ConcurrentYvCompositions, 9 ChoiceCompositions, 307 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10836, independent: 10754, independent conditional: 10754, independent unconditional: 0, dependent: 78, dependent conditional: 78, dependent unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10836, independent: 10754, independent conditional: 0, independent unconditional: 10754, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10836, independent: 10754, independent conditional: 0, independent unconditional: 10754, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10836, independent: 10754, independent conditional: 0, independent unconditional: 10754, dependent: 78, dependent conditional: 0, dependent unconditional: 78, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8031, independent: 8004, independent conditional: 0, independent unconditional: 8004, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8031, independent: 7984, independent conditional: 0, independent unconditional: 7984, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4538, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 4306, unknown conditional: 0, unknown unconditional: 4306] ], Cache Queries: [ total: 10836, independent: 2750, independent conditional: 0, independent unconditional: 2750, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 8033, unknown conditional: 0, unknown unconditional: 8033] , Statistics on independence cache: Total cache size (in pairs): 22247, Positive cache size: 22222, Positive conditional cache size: 0, Positive unconditional cache size: 22222, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 60 PlacesBefore, 59 PlacesAfterwards, 57 TransitionsBefore, 56 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 118, independent: 81, independent conditional: 81, independent unconditional: 0, dependent: 35, dependent conditional: 35, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 118, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 118, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 118, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 74, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 74, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2246, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 2155, unknown conditional: 0, unknown unconditional: 2155] ], Cache Queries: [ total: 118, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 75, unknown conditional: 0, unknown unconditional: 75] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 59 PlacesBefore, 59 PlacesAfterwards, 83 TransitionsBefore, 83 TransitionsAfterwards, 752 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 132, independent: 100, independent conditional: 100, independent unconditional: 0, dependent: 32, dependent conditional: 32, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 132, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 132, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 132, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 132, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 53 PlacesBefore, 53 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 118, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 112, dependent conditional: 112, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 118, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 112, dependent conditional: 111, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 118, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 112, dependent conditional: 111, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 118, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 112, dependent conditional: 111, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 17, dependent conditional: 17, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 118, independent: 5, independent conditional: 3, independent unconditional: 2, dependent: 109, dependent conditional: 108, dependent unconditional: 1, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 91, Positive cache size: 74, Positive conditional cache size: 1, Positive unconditional cache size: 73, Negative cache size: 17, Negative conditional cache size: 3, Negative unconditional cache size: 14, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5s, 54 PlacesBefore, 54 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 75, Positive conditional cache size: 2, Positive unconditional cache size: 73, Negative cache size: 17, Negative conditional cache size: 3, Negative unconditional cache size: 14, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 75, Positive conditional cache size: 2, Positive unconditional cache size: 73, Negative cache size: 17, Negative conditional cache size: 3, Negative unconditional cache size: 14, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, 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, 448 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: 502.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 486.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 281 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 883 IncrementalHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 0 mSDtfsCounter, 883 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=441occurred in iteration=3, InterpolantAutomatonStates: 20, 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, 0.8s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-12-13 12:16:59,144 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...