/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:29:08,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:29:08,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:29:08,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:29:08,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:29:08,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:29:08,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:29:08,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:29:08,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:29:08,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:29:08,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:29:08,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:29:08,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:29:08,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:29:08,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:29:08,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:29:08,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:29:08,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:29:08,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:29:08,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:29:08,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:29:08,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:29:08,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:29:08,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:29:08,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:29:08,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:29:08,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:29:08,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:29:08,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:29:08,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:29:08,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:29:08,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:29:08,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:29:08,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:29:08,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:29:08,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:29:08,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:29:08,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:29:08,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:29:08,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:29:08,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:29:08,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:29:08,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:29:08,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:29:08,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:29:08,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:29:08,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:29:08,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:29:08,588 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:29:08,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:29:08,588 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:29:08,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:29:08,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:29:08,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:29:08,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:29:08,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:29:08,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:29:08,590 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:29:08,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:29:08,590 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:29:08,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:29:08,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:29:08,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:29:08,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:29:08,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:29:08,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:29:08,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:29:08,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:29:08,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:29:08,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:29:08,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:29:08,591 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:29:08,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:29:08,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:29:08,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:29:08,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:29:08,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:29:08,957 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:29:08,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-05 20:29:10,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:29:10,584 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:29:10,585 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-05 20:29:10,633 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93a9d1fdc/29c24fa4c1274fe0a52f0c42434e1607/FLAG10c265c90 [2022-12-05 20:29:10,651 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93a9d1fdc/29c24fa4c1274fe0a52f0c42434e1607 [2022-12-05 20:29:10,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:29:10,655 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:29:10,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:29:10,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:29:10,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:29:10,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:29:10" (1/1) ... [2022-12-05 20:29:10,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1baff565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:10, skipping insertion in model container [2022-12-05 20:29:10,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:29:10" (1/1) ... [2022-12-05 20:29:10,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:29:10,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:29:11,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-12-05 20:29:11,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:11,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:11,760 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:29:11,763 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:11,766 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:11,773 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:11,838 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:11,843 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:11,904 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:29:12,016 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:12,023 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:12,061 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:29:12,065 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:29:12,288 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:29:12,290 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:29:12,291 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:29:12,343 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:29:12,344 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:12,345 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:29:12,346 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:12,431 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:29:12,448 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:29:12,534 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:29:12,537 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:29:12,623 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:29:12,749 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:29:12,750 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:29:12,750 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:29:13,543 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:29:13,544 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:13,591 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:13,594 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:13,603 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:13,934 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 20:29:13,937 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 20:29:13,940 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 20:29:13,948 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 20:29:13,949 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 20:29:13,952 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 20:29:13,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:29:13,986 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:29:14,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-12-05 20:29:14,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:14,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:14,054 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:29:14,055 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:14,055 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:14,056 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:14,060 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:14,061 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:14,063 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:29:14,073 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:14,074 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:14,076 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:29:14,076 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:29:14,084 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:29:14,084 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:29:14,084 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:29:14,088 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:29:14,088 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:14,088 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:29:14,089 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:14,098 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:29:14,100 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:29:14,105 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:29:14,106 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:29:14,110 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:29:14,113 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:29:14,113 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:29:14,113 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:29:14,177 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:29:14,178 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:14,181 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:14,189 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:14,193 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:14,293 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 20:29:14,295 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 20:29:14,295 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 20:29:14,297 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 20:29:14,297 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 20:29:14,298 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 20:29:14,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:29:14,825 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:29:14,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14 WrapperNode [2022-12-05 20:29:14,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:29:14,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:29:14,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:29:14,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:29:14,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:14,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,005 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 314 [2022-12-05 20:29:15,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:29:15,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:29:15,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:29:15,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:29:15,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,039 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:29:15,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:29:15,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:29:15,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:29:15,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (1/1) ... [2022-12-05 20:29:15,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:29:15,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:29:15,076 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) [2022-12-05 20:29:15,111 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 [2022-12-05 20:29:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:29:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 20:29:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:29:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:29:15,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:29:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 20:29:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:29:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:29:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-05 20:29:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-05 20:29:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:29:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 20:29:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:29:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-05 20:29:15,138 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-05 20:29:15,140 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:29:15,646 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:29:15,648 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:29:16,111 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:29:16,132 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:29:16,132 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-05 20:29:16,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:29:16 BoogieIcfgContainer [2022-12-05 20:29:16,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:29:16,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:29:16,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:29:16,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:29:16,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:29:10" (1/3) ... [2022-12-05 20:29:16,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17842c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:29:16, skipping insertion in model container [2022-12-05 20:29:16,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:14" (2/3) ... [2022-12-05 20:29:16,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17842c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:29:16, skipping insertion in model container [2022-12-05 20:29:16,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:29:16" (3/3) ... [2022-12-05 20:29:16,143 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_read_nvram.i [2022-12-05 20:29:16,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:29:16,159 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 20:29:16,160 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:29:16,269 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:29:16,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 331 places, 339 transitions, 694 flow [2022-12-05 20:29:16,416 INFO L130 PetriNetUnfolder]: 15/337 cut-off events. [2022-12-05 20:29:16,416 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:29:16,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 337 events. 15/337 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 341 event pairs, 0 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 275. Up to 5 conditions per place. [2022-12-05 20:29:16,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 331 places, 339 transitions, 694 flow [2022-12-05 20:29:16,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 329 transitions, 667 flow [2022-12-05 20:29:16,432 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:29:16,447 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 321 places, 329 transitions, 667 flow [2022-12-05 20:29:16,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 329 transitions, 667 flow [2022-12-05 20:29:16,543 INFO L130 PetriNetUnfolder]: 15/329 cut-off events. [2022-12-05 20:29:16,543 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:29:16,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 329 events. 15/329 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 320 event pairs, 0 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 275. Up to 5 conditions per place. [2022-12-05 20:29:16,553 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 321 places, 329 transitions, 667 flow [2022-12-05 20:29:16,553 INFO L188 LiptonReduction]: Number of co-enabled transitions 10796 [2022-12-05 20:29:16,647 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:16,649 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:19,271 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:19,272 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:21,047 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:21,048 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:21,265 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:21,266 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:21,267 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:21,268 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:21,529 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:21,532 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:21,534 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:21,535 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:24,819 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:24,819 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:24,820 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:24,821 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:25,192 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:25,193 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:25,194 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:25,195 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:26,557 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:26,559 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:26,564 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:26,565 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:27,272 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:27,272 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:27,275 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:27,275 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:33,143 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:33,143 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:33,145 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:33,145 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:33,569 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:33,570 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:33,574 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:33,574 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:37,320 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:37,321 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:37,325 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:37,326 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:46,164 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:46,165 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:46,168 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:46,168 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2022-12-05 20:29:48,342 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,343 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,346 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,347 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,353 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,353 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,356 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,357 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:05,545 WARN L233 SmtUtils]: Spent 7.96s on a formula simplification that was a NOOP. DAG size: 299 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:30:14,081 WARN L233 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 299 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:30:22,368 WARN L233 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 299 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:30:30,467 WARN L233 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 299 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:30:38,878 WARN L233 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 350 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:30:46,795 WARN L233 SmtUtils]: Spent 7.92s on a formula simplification that was a NOOP. DAG size: 338 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:30:57,280 WARN L233 SmtUtils]: Spent 10.48s on a formula simplification that was a NOOP. DAG size: 350 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:04,861 WARN L233 SmtUtils]: Spent 7.58s on a formula simplification that was a NOOP. DAG size: 338 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:05,128 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:05,128 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:31:05,138 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:05,139 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:31:05,147 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:05,148 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2022-12-05 20:31:05,156 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:05,158 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2022-12-05 20:31:05,173 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:05,174 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2022-12-05 20:31:12,616 WARN L233 SmtUtils]: Spent 7.37s on a formula simplification that was a NOOP. DAG size: 407 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:21,034 WARN L233 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 398 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:36,905 WARN L233 SmtUtils]: Spent 15.87s on a formula simplification that was a NOOP. DAG size: 407 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:50,722 WARN L233 SmtUtils]: Spent 13.81s on a formula simplification that was a NOOP. DAG size: 398 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:51,298 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:51,299 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2022-12-05 20:31:51,303 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:51,308 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 991 [2022-12-05 20:31:51,312 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:51,314 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1293 [2022-12-05 20:31:51,320 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:51,322 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2022-12-05 20:31:51,328 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:51,329 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2022-12-05 20:31:51,337 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:51,339 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2022-12-05 20:31:51,344 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:51,345 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2022-12-05 20:32:04,868 WARN L233 SmtUtils]: Spent 13.44s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:32:18,221 WARN L233 SmtUtils]: Spent 13.35s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:32:36,335 WARN L233 SmtUtils]: Spent 18.11s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:32:53,828 WARN L233 SmtUtils]: Spent 17.49s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:32:55,398 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:32:55,399 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:32:55,401 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:32:55,402 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:32:55,406 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:32:55,406 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:32:55,409 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:32:55,409 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:34:29,682 WARN L233 SmtUtils]: Spent 1.57m on a formula simplification. DAG size of input: 522 DAG size of output: 515 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:35:15,721 WARN L233 SmtUtils]: Spent 46.03s 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) [2022-12-05 20:36:56,795 WARN L233 SmtUtils]: Spent 1.68m on a formula simplification. DAG size of input: 534 DAG size of output: 525 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:37:55,423 WARN L233 SmtUtils]: Spent 58.62s 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) [2022-12-05 20:37:55,442 INFO L203 LiptonReduction]: Total number of compositions: 307 [2022-12-05 20:37:55,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:37:55,457 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74fb1eec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:37:55,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-05 20:37:55,466 INFO L130 PetriNetUnfolder]: 3/25 cut-off events. [2022-12-05 20:37:55,467 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:37:55,467 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:37:55,467 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:37:55,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:37:55,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:37:55,471 INFO L85 PathProgramCache]: Analyzing trace with hash -929690964, now seen corresponding path program 1 times [2022-12-05 20:37:55,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:37:55,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693730631] [2022-12-05 20:37:55,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:37:55,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:37:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:37:56,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:37:56,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:37:56,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693730631] [2022-12-05 20:37:56,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693730631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:37:56,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:37:56,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:37:56,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872458689] [2022-12-05 20:37:56,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:37:56,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:37:56,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:37:56,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:37:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:37:56,521 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:37:56,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-12-05 20:37:56,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:37:56,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:37:56,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:37:56,847 INFO L130 PetriNetUnfolder]: 397/672 cut-off events. [2022-12-05 20:37:56,847 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-12-05 20:37:56,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 672 events. 397/672 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2802 event pairs, 210 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 1224. Up to 492 conditions per place. [2022-12-05 20:37:56,853 INFO L137 encePairwiseOnDemand]: 25/32 looper letters, 34 selfloop transitions, 4 changer transitions 5/45 dead transitions. [2022-12-05 20:37:56,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 45 transitions, 191 flow [2022-12-05 20:37:56,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:37:56,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:37:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2022-12-05 20:37:56,864 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5520833333333334 [2022-12-05 20:37:56,865 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 73 flow. Second operand 3 states and 53 transitions. [2022-12-05 20:37:56,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 45 transitions, 191 flow [2022-12-05 20:37:56,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 45 transitions, 183 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:37:56,871 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 94 flow [2022-12-05 20:37:56,873 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2022-12-05 20:37:56,876 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2022-12-05 20:37:56,877 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 94 flow [2022-12-05 20:37:56,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-12-05 20:37:56,877 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:37:56,877 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:37:56,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:37:56,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:37:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:37:56,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1215057360, now seen corresponding path program 1 times [2022-12-05 20:37:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:37:56,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415799127] [2022-12-05 20:37:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:37:56,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:37:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:37:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:37:57,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:37:57,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415799127] [2022-12-05 20:37:57,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415799127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:37:57,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:37:57,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:37:57,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908420290] [2022-12-05 20:37:57,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:37:57,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:37:57,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:37:57,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:37:57,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:37:57,283 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:37:57,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-05 20:37:57,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:37:57,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:37:57,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:37:57,556 INFO L130 PetriNetUnfolder]: 413/748 cut-off events. [2022-12-05 20:37:57,556 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2022-12-05 20:37:57,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1663 conditions, 748 events. 413/748 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3475 event pairs, 185 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 925. Up to 404 conditions per place. [2022-12-05 20:37:57,558 INFO L137 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 3 changer transitions 21/53 dead transitions. [2022-12-05 20:37:57,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 53 transitions, 249 flow [2022-12-05 20:37:57,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:37:57,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:37:57,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-05 20:37:57,559 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5625 [2022-12-05 20:37:57,560 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 94 flow. Second operand 3 states and 54 transitions. [2022-12-05 20:37:57,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 53 transitions, 249 flow [2022-12-05 20:37:57,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 53 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:37:57,562 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 92 flow [2022-12-05 20:37:57,562 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2022-12-05 20:37:57,562 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2022-12-05 20:37:57,563 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 92 flow [2022-12-05 20:37:57,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-05 20:37:57,563 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:37:57,563 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:37:57,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:37:57,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:37:57,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:37:57,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1244350570, now seen corresponding path program 1 times [2022-12-05 20:37:57,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:37:57,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585859553] [2022-12-05 20:37:57,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:37:57,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:37:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:37:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:37:58,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:37:58,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585859553] [2022-12-05 20:37:58,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585859553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:37:58,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:37:58,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:37:58,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831889457] [2022-12-05 20:37:58,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:37:58,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:37:58,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:37:58,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:37:58,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:37:58,126 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:37:58,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-12-05 20:37:58,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:37:58,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:37:58,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:37:58,557 INFO L130 PetriNetUnfolder]: 217/426 cut-off events. [2022-12-05 20:37:58,557 INFO L131 PetriNetUnfolder]: For 174/174 co-relation queries the response was YES. [2022-12-05 20:37:58,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 426 events. 217/426 cut-off events. For 174/174 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1920 event pairs, 43 based on Foata normal form. 9/367 useless extension candidates. Maximal degree in co-relation 779. Up to 195 conditions per place. [2022-12-05 20:37:58,559 INFO L137 encePairwiseOnDemand]: 27/32 looper letters, 26 selfloop transitions, 6 changer transitions 14/48 dead transitions. [2022-12-05 20:37:58,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 48 transitions, 247 flow [2022-12-05 20:37:58,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:37:58,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:37:58,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2022-12-05 20:37:58,561 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.34375 [2022-12-05 20:37:58,561 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 92 flow. Second operand 5 states and 55 transitions. [2022-12-05 20:37:58,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 48 transitions, 247 flow [2022-12-05 20:37:58,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 48 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:37:58,563 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 108 flow [2022-12-05 20:37:58,563 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2022-12-05 20:37:58,563 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2022-12-05 20:37:58,563 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 108 flow [2022-12-05 20:37:58,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-12-05 20:37:58,564 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:37:58,564 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:37:58,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:37:58,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:37:58,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:37:58,565 INFO L85 PathProgramCache]: Analyzing trace with hash -75978161, now seen corresponding path program 1 times [2022-12-05 20:37:58,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:37:58,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286753815] [2022-12-05 20:37:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:37:58,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:37:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:38:05,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:38:05,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:38:05,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286753815] [2022-12-05 20:38:05,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286753815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:38:05,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:38:05,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:38:05,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107983388] [2022-12-05 20:38:05,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:38:05,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:38:05,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:38:05,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:38:05,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:38:05,636 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:38:05,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 108 flow. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:05,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:38:05,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:38:05,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:38:06,217 INFO L130 PetriNetUnfolder]: 259/552 cut-off events. [2022-12-05 20:38:06,217 INFO L131 PetriNetUnfolder]: For 373/373 co-relation queries the response was YES. [2022-12-05 20:38:06,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1407 conditions, 552 events. 259/552 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2840 event pairs, 40 based on Foata normal form. 8/516 useless extension candidates. Maximal degree in co-relation 627. Up to 166 conditions per place. [2022-12-05 20:38:06,220 INFO L137 encePairwiseOnDemand]: 25/32 looper letters, 34 selfloop transitions, 10 changer transitions 20/66 dead transitions. [2022-12-05 20:38:06,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 66 transitions, 368 flow [2022-12-05 20:38:06,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:38:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:38:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 78 transitions. [2022-12-05 20:38:06,221 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3046875 [2022-12-05 20:38:06,221 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 108 flow. Second operand 8 states and 78 transitions. [2022-12-05 20:38:06,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 66 transitions, 368 flow [2022-12-05 20:38:06,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 66 transitions, 354 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:38:06,224 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 150 flow [2022-12-05 20:38:06,224 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2022-12-05 20:38:06,224 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2022-12-05 20:38:06,224 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 150 flow [2022-12-05 20:38:06,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:06,225 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:38:06,225 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:38:06,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:38:06,225 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:38:06,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:38:06,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1333857369, now seen corresponding path program 1 times [2022-12-05 20:38:06,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:38:06,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756759431] [2022-12-05 20:38:06,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:38:06,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:38:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:38:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:38:11,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:38:11,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756759431] [2022-12-05 20:38:11,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756759431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:38:11,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:38:11,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:38:11,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024267820] [2022-12-05 20:38:11,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:38:11,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:38:11,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:38:11,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:38:11,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:38:11,230 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:38:11,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 150 flow. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:11,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:38:11,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:38:11,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:38:11,646 INFO L130 PetriNetUnfolder]: 219/458 cut-off events. [2022-12-05 20:38:11,646 INFO L131 PetriNetUnfolder]: For 414/414 co-relation queries the response was YES. [2022-12-05 20:38:11,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 458 events. 219/458 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2171 event pairs, 32 based on Foata normal form. 8/430 useless extension candidates. Maximal degree in co-relation 1031. Up to 186 conditions per place. [2022-12-05 20:38:11,648 INFO L137 encePairwiseOnDemand]: 26/32 looper letters, 30 selfloop transitions, 11 changer transitions 20/63 dead transitions. [2022-12-05 20:38:11,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 63 transitions, 370 flow [2022-12-05 20:38:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:38:11,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:38:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 73 transitions. [2022-12-05 20:38:11,650 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.28515625 [2022-12-05 20:38:11,650 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 150 flow. Second operand 8 states and 73 transitions. [2022-12-05 20:38:11,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 63 transitions, 370 flow [2022-12-05 20:38:11,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 63 transitions, 364 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-05 20:38:11,652 INFO L231 Difference]: Finished difference. Result has 47 places, 32 transitions, 185 flow [2022-12-05 20:38:11,653 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=185, PETRI_PLACES=47, PETRI_TRANSITIONS=32} [2022-12-05 20:38:11,653 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 13 predicate places. [2022-12-05 20:38:11,653 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 32 transitions, 185 flow [2022-12-05 20:38:11,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:11,654 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:38:11,654 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:38:11,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:38:11,654 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:38:11,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:38:11,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1294881731, now seen corresponding path program 2 times [2022-12-05 20:38:11,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:38:11,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029937711] [2022-12-05 20:38:11,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:38:11,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:38:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:38:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:38:12,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:38:12,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029937711] [2022-12-05 20:38:12,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029937711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:38:12,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:38:12,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:38:12,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984040809] [2022-12-05 20:38:12,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:38:12,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:38:12,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:38:12,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:38:12,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:38:12,287 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:38:12,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 32 transitions, 185 flow. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:12,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:38:12,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:38:12,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:38:12,823 INFO L130 PetriNetUnfolder]: 196/422 cut-off events. [2022-12-05 20:38:12,823 INFO L131 PetriNetUnfolder]: For 720/720 co-relation queries the response was YES. [2022-12-05 20:38:12,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 422 events. 196/422 cut-off events. For 720/720 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2005 event pairs, 32 based on Foata normal form. 8/398 useless extension candidates. Maximal degree in co-relation 1011. Up to 199 conditions per place. [2022-12-05 20:38:12,825 INFO L137 encePairwiseOnDemand]: 25/32 looper letters, 24 selfloop transitions, 9 changer transitions 19/54 dead transitions. [2022-12-05 20:38:12,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 54 transitions, 359 flow [2022-12-05 20:38:12,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:38:12,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:38:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2022-12-05 20:38:12,827 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3125 [2022-12-05 20:38:12,827 INFO L175 Difference]: Start difference. First operand has 47 places, 32 transitions, 185 flow. Second operand 6 states and 60 transitions. [2022-12-05 20:38:12,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 54 transitions, 359 flow [2022-12-05 20:38:12,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 54 transitions, 348 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-05 20:38:12,831 INFO L231 Difference]: Finished difference. Result has 50 places, 31 transitions, 188 flow [2022-12-05 20:38:12,831 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=50, PETRI_TRANSITIONS=31} [2022-12-05 20:38:12,833 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 16 predicate places. [2022-12-05 20:38:12,833 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 31 transitions, 188 flow [2022-12-05 20:38:12,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:12,834 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:38:12,834 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:38:12,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:38:12,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:38:12,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:38:12,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1295025881, now seen corresponding path program 3 times [2022-12-05 20:38:12,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:38:12,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125302868] [2022-12-05 20:38:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:38:12,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:38:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:38:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:38:13,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:38:13,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125302868] [2022-12-05 20:38:13,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125302868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:38:13,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:38:13,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:38:13,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110698791] [2022-12-05 20:38:13,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:38:13,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:38:13,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:38:13,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:38:13,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:38:13,514 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:38:13,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 31 transitions, 188 flow. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:13,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:38:13,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:38:13,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:38:13,994 INFO L130 PetriNetUnfolder]: 179/397 cut-off events. [2022-12-05 20:38:13,995 INFO L131 PetriNetUnfolder]: For 633/633 co-relation queries the response was YES. [2022-12-05 20:38:13,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 397 events. 179/397 cut-off events. For 633/633 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1880 event pairs, 41 based on Foata normal form. 8/373 useless extension candidates. Maximal degree in co-relation 1084. Up to 103 conditions per place. [2022-12-05 20:38:13,996 INFO L137 encePairwiseOnDemand]: 26/32 looper letters, 23 selfloop transitions, 8 changer transitions 29/61 dead transitions. [2022-12-05 20:38:13,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 61 transitions, 383 flow [2022-12-05 20:38:13,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:38:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:38:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 71 transitions. [2022-12-05 20:38:13,998 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3169642857142857 [2022-12-05 20:38:13,998 INFO L175 Difference]: Start difference. First operand has 50 places, 31 transitions, 188 flow. Second operand 7 states and 71 transitions. [2022-12-05 20:38:13,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 61 transitions, 383 flow [2022-12-05 20:38:14,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 61 transitions, 363 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-05 20:38:14,000 INFO L231 Difference]: Finished difference. Result has 51 places, 28 transitions, 160 flow [2022-12-05 20:38:14,001 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=51, PETRI_TRANSITIONS=28} [2022-12-05 20:38:14,001 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 17 predicate places. [2022-12-05 20:38:14,001 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 28 transitions, 160 flow [2022-12-05 20:38:14,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:14,001 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:38:14,001 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:38:14,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:38:14,002 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:38:14,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:38:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash -76157659, now seen corresponding path program 2 times [2022-12-05 20:38:14,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:38:14,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607263934] [2022-12-05 20:38:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:38:14,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:38:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:38:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:38:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:38:14,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607263934] [2022-12-05 20:38:14,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607263934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:38:14,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:38:14,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:38:14,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103322554] [2022-12-05 20:38:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:38:14,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:38:14,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:38:14,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:38:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:38:14,603 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:38:14,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 28 transitions, 160 flow. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:14,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:38:14,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:38:14,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:38:15,189 INFO L130 PetriNetUnfolder]: 196/426 cut-off events. [2022-12-05 20:38:15,190 INFO L131 PetriNetUnfolder]: For 605/605 co-relation queries the response was YES. [2022-12-05 20:38:15,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 426 events. 196/426 cut-off events. For 605/605 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2011 event pairs, 43 based on Foata normal form. 8/398 useless extension candidates. Maximal degree in co-relation 1140. Up to 100 conditions per place. [2022-12-05 20:38:15,191 INFO L137 encePairwiseOnDemand]: 26/32 looper letters, 24 selfloop transitions, 7 changer transitions 32/64 dead transitions. [2022-12-05 20:38:15,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 64 transitions, 382 flow [2022-12-05 20:38:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:38:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:38:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 77 transitions. [2022-12-05 20:38:15,193 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.30078125 [2022-12-05 20:38:15,193 INFO L175 Difference]: Start difference. First operand has 51 places, 28 transitions, 160 flow. Second operand 8 states and 77 transitions. [2022-12-05 20:38:15,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 64 transitions, 382 flow [2022-12-05 20:38:15,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 365 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-05 20:38:15,196 INFO L231 Difference]: Finished difference. Result has 52 places, 26 transitions, 143 flow [2022-12-05 20:38:15,196 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=143, PETRI_PLACES=52, PETRI_TRANSITIONS=26} [2022-12-05 20:38:15,198 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 18 predicate places. [2022-12-05 20:38:15,198 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 26 transitions, 143 flow [2022-12-05 20:38:15,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:15,198 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:38:15,198 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:38:15,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:38:15,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:38:15,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:38:15,200 INFO L85 PathProgramCache]: Analyzing trace with hash -210274819, now seen corresponding path program 3 times [2022-12-05 20:38:15,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:38:15,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673095334] [2022-12-05 20:38:15,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:38:15,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:38:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:38:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:38:19,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:38:19,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673095334] [2022-12-05 20:38:19,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673095334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:38:19,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:38:19,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:38:19,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415176594] [2022-12-05 20:38:19,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:38:19,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:38:19,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:38:19,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:38:19,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:38:19,596 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:38:19,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 26 transitions, 143 flow. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:19,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:38:19,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:38:19,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:38:19,896 INFO L130 PetriNetUnfolder]: 131/291 cut-off events. [2022-12-05 20:38:19,897 INFO L131 PetriNetUnfolder]: For 503/503 co-relation queries the response was YES. [2022-12-05 20:38:19,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 291 events. 131/291 cut-off events. For 503/503 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1202 event pairs, 21 based on Foata normal form. 8/275 useless extension candidates. Maximal degree in co-relation 856. Up to 104 conditions per place. [2022-12-05 20:38:19,898 INFO L137 encePairwiseOnDemand]: 27/32 looper letters, 14 selfloop transitions, 3 changer transitions 28/45 dead transitions. [2022-12-05 20:38:19,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 45 transitions, 272 flow [2022-12-05 20:38:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:38:19,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:38:19,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 54 transitions. [2022-12-05 20:38:19,899 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.28125 [2022-12-05 20:38:19,899 INFO L175 Difference]: Start difference. First operand has 52 places, 26 transitions, 143 flow. Second operand 6 states and 54 transitions. [2022-12-05 20:38:19,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 45 transitions, 272 flow [2022-12-05 20:38:19,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 253 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-05 20:38:19,901 INFO L231 Difference]: Finished difference. Result has 48 places, 15 transitions, 77 flow [2022-12-05 20:38:19,901 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=48, PETRI_TRANSITIONS=15} [2022-12-05 20:38:19,901 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 14 predicate places. [2022-12-05 20:38:19,902 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 15 transitions, 77 flow [2022-12-05 20:38:19,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:19,902 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:38:19,902 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:38:19,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 20:38:19,902 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 20:38:19,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:38:19,902 INFO L85 PathProgramCache]: Analyzing trace with hash 575635571, now seen corresponding path program 4 times [2022-12-05 20:38:19,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:38:19,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643724198] [2022-12-05 20:38:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:38:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:38:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:38:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:38:20,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:38:20,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643724198] [2022-12-05 20:38:20,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643724198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:38:20,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:38:20,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:38:20,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430728152] [2022-12-05 20:38:20,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:38:20,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:38:20,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:38:20,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:38:20,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:38:20,641 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 32 [2022-12-05 20:38:20,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 15 transitions, 77 flow. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:20,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:38:20,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 32 [2022-12-05 20:38:20,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:38:20,997 INFO L130 PetriNetUnfolder]: 6/24 cut-off events. [2022-12-05 20:38:20,997 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-12-05 20:38:20,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 24 events. 6/24 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 8/30 useless extension candidates. Maximal degree in co-relation 81. Up to 15 conditions per place. [2022-12-05 20:38:20,997 INFO L137 encePairwiseOnDemand]: 27/32 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2022-12-05 20:38:20,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 15 transitions, 103 flow [2022-12-05 20:38:20,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:38:20,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:38:20,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2022-12-05 20:38:20,998 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.14583333333333334 [2022-12-05 20:38:20,998 INFO L175 Difference]: Start difference. First operand has 48 places, 15 transitions, 77 flow. Second operand 6 states and 28 transitions. [2022-12-05 20:38:20,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 15 transitions, 103 flow [2022-12-05 20:38:20,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 15 transitions, 66 flow, removed 2 selfloop flow, removed 16 redundant places. [2022-12-05 20:38:20,999 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2022-12-05 20:38:20,999 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2022-12-05 20:38:21,000 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, -8 predicate places. [2022-12-05 20:38:21,000 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2022-12-05 20:38:21,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:38:21,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-05 20:38:21,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2022-12-05 20:38:21,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-05 20:38:21,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-12-05 20:38:21,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-05 20:38:21,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-05 20:38:21,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 20:38:21,002 INFO L458 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1] [2022-12-05 20:38:21,006 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:38:21,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:38:21,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:38:21 BasicIcfg [2022-12-05 20:38:21,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:38:21,009 INFO L158 Benchmark]: Toolchain (without parser) took 550354.14ms. Allocated memory was 165.7MB in the beginning and 800.1MB in the end (delta: 634.4MB). Free memory was 131.9MB in the beginning and 409.5MB in the end (delta: -277.6MB). Peak memory consumption was 357.3MB. Max. memory is 8.0GB. [2022-12-05 20:38:21,009 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 104.9MB in the beginning and 104.8MB in the end (delta: 91.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:38:21,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4168.70ms. Allocated memory was 165.7MB in the beginning and 200.3MB in the end (delta: 34.6MB). Free memory was 131.5MB in the beginning and 99.7MB in the end (delta: 31.8MB). Peak memory consumption was 94.3MB. Max. memory is 8.0GB. [2022-12-05 20:38:21,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 179.34ms. Allocated memory is still 200.3MB. Free memory was 99.7MB in the beginning and 90.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-12-05 20:38:21,010 INFO L158 Benchmark]: Boogie Preprocessor took 41.63ms. Allocated memory is still 200.3MB. Free memory was 90.3MB in the beginning and 86.6MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:38:21,010 INFO L158 Benchmark]: RCFGBuilder took 1086.65ms. Allocated memory is still 200.3MB. Free memory was 86.6MB in the beginning and 121.1MB in the end (delta: -34.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 20:38:21,011 INFO L158 Benchmark]: TraceAbstraction took 544871.77ms. Allocated memory was 200.3MB in the beginning and 800.1MB in the end (delta: 599.8MB). Free memory was 120.0MB in the beginning and 409.5MB in the end (delta: -289.4MB). Peak memory consumption was 309.8MB. Max. memory is 8.0GB. [2022-12-05 20:38:21,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 104.9MB in the beginning and 104.8MB in the end (delta: 91.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4168.70ms. Allocated memory was 165.7MB in the beginning and 200.3MB in the end (delta: 34.6MB). Free memory was 131.5MB in the beginning and 99.7MB in the end (delta: 31.8MB). Peak memory consumption was 94.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 179.34ms. Allocated memory is still 200.3MB. Free memory was 99.7MB in the beginning and 90.3MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.63ms. Allocated memory is still 200.3MB. Free memory was 90.3MB in the beginning and 86.6MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1086.65ms. Allocated memory is still 200.3MB. Free memory was 86.6MB in the beginning and 121.1MB in the end (delta: -34.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 544871.77ms. Allocated memory was 200.3MB in the beginning and 800.1MB in the end (delta: 599.8MB). Free memory was 120.0MB in the beginning and 409.5MB in the end (delta: -289.4MB). Peak memory consumption was 309.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 518.9s, 321 PlacesBefore, 34 PlacesAfterwards, 329 TransitionsBefore, 32 TransitionsAfterwards, 10796 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 175 TrivialYvCompositions, 121 ConcurrentYvCompositions, 7 ChoiceCompositions, 307 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7734, independent: 7651, independent conditional: 7651, independent unconditional: 0, dependent: 83, dependent conditional: 83, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7734, independent: 7651, independent conditional: 0, independent unconditional: 7651, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7734, independent: 7651, independent conditional: 0, independent unconditional: 7651, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7734, independent: 7651, independent conditional: 0, independent unconditional: 7651, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6272, independent: 6236, independent conditional: 0, independent unconditional: 6236, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6272, independent: 6219, independent conditional: 0, independent unconditional: 6219, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 145, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7734, independent: 1415, independent conditional: 0, independent unconditional: 1415, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 6272, unknown conditional: 0, unknown unconditional: 6272] , Statistics on independence cache: Total cache size (in pairs): 13455, Positive cache size: 13419, Positive conditional cache size: 0, Positive unconditional cache size: 13419, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, 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 - 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, 454 locations, 6 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: 544.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 519.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 535 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 535 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1099 IncrementalHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 0 mSDtfsCounter, 1099 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=6, InterpolantAutomatonStates: 60, 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: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 19.8s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 861 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:38:21,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...