/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:43:12,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:43:12,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:43:12,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:43:12,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:43:12,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:43:12,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:43:12,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:43:12,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:43:12,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:43:12,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:43:12,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:43:12,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:43:12,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:43:12,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:43:12,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:43:12,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:43:12,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:43:12,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:43:12,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:43:12,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:43:12,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:43:12,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:43:12,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:43:12,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:43:12,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:43:12,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:43:12,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:43:12,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:43:12,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:43:12,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:43:12,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:43:12,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:43:12,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:43:12,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:43:12,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:43:12,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:43:12,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:43:12,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:43:12,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:43:12,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:43:12,318 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-NoLbe.epf [2022-12-05 18:43:12,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:43:12,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:43:12,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:43:12,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:43:12,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:43:12,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:43:12,349 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:43:12,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:43:12,349 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:43:12,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:43:12,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:43:12,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:43:12,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:43:12,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:43:12,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:43:12,350 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:43:12,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:43:12,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:43:12,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:43:12,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:43:12,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:43:12,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:43:12,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:43:12,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:43:12,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:43:12,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:43:12,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:43:12,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:43:12,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:43:12,352 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:43:12,352 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:43:12,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:43:12,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:43:12,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:43:12,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:43:12,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:43:12,667 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:43:12,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2022-12-05 18:43:13,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:43:14,062 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:43:14,062 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2022-12-05 18:43:14,099 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c866f20e2/4f615c253f394aafb5438b8482cc7d66/FLAG5633d8b5d [2022-12-05 18:43:14,119 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c866f20e2/4f615c253f394aafb5438b8482cc7d66 [2022-12-05 18:43:14,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:43:14,123 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:43:14,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:43:14,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:43:14,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:43:14,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:43:14" (1/1) ... [2022-12-05 18:43:14,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f24d1f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:14, skipping insertion in model container [2022-12-05 18:43:14,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:43:14" (1/1) ... [2022-12-05 18:43:14,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:43:14,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:43:14,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2022-12-05 18:43:14,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:15,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:15,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:15,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:15,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:15,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:15,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:15,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:15,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:15,643 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:43:15,649 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:15,655 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:15,666 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:15,811 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:43:15,817 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:43:16,027 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:43:16,355 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:43:16,367 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:43:16,467 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:43:16,473 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:43:16,956 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:43:16,961 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:43:16,967 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:43:17,129 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:43:17,129 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:43:17,134 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:43:17,135 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:43:17,363 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:43:17,422 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:43:17,723 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:43:17,729 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:43:17,989 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:43:18,350 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:43:18,350 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:43:18,351 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:43:19,444 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:43:19,445 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:19,451 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:19,456 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:19,468 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:19,943 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 18:43:19,948 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 18:43:19,955 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 18:43:19,963 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 18:43:19,964 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 18:43:19,967 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 18:43:19,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:43:20,002 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:43:20,016 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2022-12-05 18:43:20,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:20,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:20,042 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:43:20,042 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:20,043 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:20,044 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:20,047 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:43:20,050 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:43:20,053 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:43:20,064 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:43:20,066 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:43:20,067 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:43:20,068 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:43:20,075 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:43:20,075 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:43:20,075 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:43:20,079 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:43:20,079 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:43:20,079 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:43:20,079 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:43:20,087 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:43:20,089 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:43:20,092 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:43:20,093 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:43:20,096 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:43:20,100 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:43:20,100 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:43:20,100 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:43:20,155 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:43:20,156 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:20,159 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:20,163 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:20,166 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:20,198 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 18:43:20,199 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 18:43:20,200 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 18:43:20,201 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 18:43:20,202 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 18:43:20,202 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 18:43:20,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:43:20,565 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:43:20,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20 WrapperNode [2022-12-05 18:43:20,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:43:20,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:43:20,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:43:20,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:43:20,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,695 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 348 [2022-12-05 18:43:20,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:43:20,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:43:20,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:43:20,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:43:20,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,752 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:43:20,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:43:20,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:43:20,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:43:20,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (1/1) ... [2022-12-05 18:43:20,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:43:20,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:43:20,794 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 18:43:20,813 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 18:43:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:43:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-05 18:43:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-05 18:43:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-05 18:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:43:20,830 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 18:43:21,247 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:43:21,249 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:43:21,620 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:43:21,634 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:43:21,634 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-05 18:43:21,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:43:21 BoogieIcfgContainer [2022-12-05 18:43:21,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:43:21,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:43:21,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:43:21,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:43:21,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:43:14" (1/3) ... [2022-12-05 18:43:21,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e93dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:43:21, skipping insertion in model container [2022-12-05 18:43:21,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:20" (2/3) ... [2022-12-05 18:43:21,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e93dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:43:21, skipping insertion in model container [2022-12-05 18:43:21,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:43:21" (3/3) ... [2022-12-05 18:43:21,643 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2022-12-05 18:43:21,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:43:21,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 18:43:21,657 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:43:21,732 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 18:43:21,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 377 transitions, 770 flow [2022-12-05 18:43:21,890 INFO L130 PetriNetUnfolder]: 15/375 cut-off events. [2022-12-05 18:43:21,891 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:43:21,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 375 events. 15/375 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 493 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-05 18:43:21,900 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 377 transitions, 770 flow [2022-12-05 18:43:21,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 367 transitions, 743 flow [2022-12-05 18:43:21,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:43:21,916 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;@16108c4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:43:21,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-05 18:43:21,954 INFO L130 PetriNetUnfolder]: 8/302 cut-off events. [2022-12-05 18:43:21,954 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:43:21,954 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:21,955 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:21,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:43:21,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:21,959 INFO L85 PathProgramCache]: Analyzing trace with hash -673564751, now seen corresponding path program 1 times [2022-12-05 18:43:21,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:21,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464811324] [2022-12-05 18:43:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:21,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:23,035 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 18:43:23,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:23,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464811324] [2022-12-05 18:43:23,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464811324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:23,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:23,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:43:23,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547139978] [2022-12-05 18:43:23,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:23,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:43:23,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:23,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:43:23,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:43:23,082 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 377 [2022-12-05 18:43:23,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 367 transitions, 743 flow. Second operand has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 18:43:23,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:23,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 377 [2022-12-05 18:43:23,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:23,790 INFO L130 PetriNetUnfolder]: 549/2874 cut-off events. [2022-12-05 18:43:23,790 INFO L131 PetriNetUnfolder]: For 106/110 co-relation queries the response was YES. [2022-12-05 18:43:23,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3902 conditions, 2874 events. 549/2874 cut-off events. For 106/110 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 22778 event pairs, 260 based on Foata normal form. 145/2823 useless extension candidates. Maximal degree in co-relation 3449. Up to 504 conditions per place. [2022-12-05 18:43:23,811 INFO L137 encePairwiseOnDemand]: 363/377 looper letters, 114 selfloop transitions, 19 changer transitions 1/442 dead transitions. [2022-12-05 18:43:23,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 442 transitions, 1198 flow [2022-12-05 18:43:23,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:43:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:43:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3976 transitions. [2022-12-05 18:43:23,827 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.878868258178603 [2022-12-05 18:43:23,828 INFO L175 Difference]: Start difference. First operand has 359 places, 367 transitions, 743 flow. Second operand 12 states and 3976 transitions. [2022-12-05 18:43:23,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 442 transitions, 1198 flow [2022-12-05 18:43:23,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 442 transitions, 1177 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:43:23,841 INFO L231 Difference]: Finished difference. Result has 372 places, 377 transitions, 849 flow [2022-12-05 18:43:23,843 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=849, PETRI_PLACES=372, PETRI_TRANSITIONS=377} [2022-12-05 18:43:23,846 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 13 predicate places. [2022-12-05 18:43:23,846 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 377 transitions, 849 flow [2022-12-05 18:43:23,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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 18:43:23,847 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:23,847 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:23,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:43:23,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:43:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:23,848 INFO L85 PathProgramCache]: Analyzing trace with hash -450076526, now seen corresponding path program 1 times [2022-12-05 18:43:23,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:23,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131796808] [2022-12-05 18:43:23,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:23,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:24,220 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 18:43:24,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:24,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131796808] [2022-12-05 18:43:24,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131796808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:24,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:24,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:43:24,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133041683] [2022-12-05 18:43:24,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:24,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:43:24,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:24,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:43:24,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:43:24,226 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 377 [2022-12-05 18:43:24,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 377 transitions, 849 flow. Second operand has 6 states, 6 states have (on average 324.3333333333333) internal successors, (1946), 6 states have internal predecessors, (1946), 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 18:43:24,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:24,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 377 [2022-12-05 18:43:24,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:24,884 INFO L130 PetriNetUnfolder]: 632/3563 cut-off events. [2022-12-05 18:43:24,884 INFO L131 PetriNetUnfolder]: For 704/745 co-relation queries the response was YES. [2022-12-05 18:43:24,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5561 conditions, 3563 events. 632/3563 cut-off events. For 704/745 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 32228 event pairs, 341 based on Foata normal form. 0/3398 useless extension candidates. Maximal degree in co-relation 5169. Up to 744 conditions per place. [2022-12-05 18:43:24,903 INFO L137 encePairwiseOnDemand]: 369/377 looper letters, 72 selfloop transitions, 7 changer transitions 52/443 dead transitions. [2022-12-05 18:43:24,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 443 transitions, 1297 flow [2022-12-05 18:43:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:43:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:43:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3935 transitions. [2022-12-05 18:43:24,909 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8698054818744474 [2022-12-05 18:43:24,910 INFO L175 Difference]: Start difference. First operand has 372 places, 377 transitions, 849 flow. Second operand 12 states and 3935 transitions. [2022-12-05 18:43:24,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 443 transitions, 1297 flow [2022-12-05 18:43:24,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 443 transitions, 1297 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 18:43:24,921 INFO L231 Difference]: Finished difference. Result has 391 places, 370 transitions, 859 flow [2022-12-05 18:43:24,922 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=859, PETRI_PLACES=391, PETRI_TRANSITIONS=370} [2022-12-05 18:43:24,923 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 32 predicate places. [2022-12-05 18:43:24,923 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 370 transitions, 859 flow [2022-12-05 18:43:24,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.3333333333333) internal successors, (1946), 6 states have internal predecessors, (1946), 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 18:43:24,924 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:24,924 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:24,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:43:24,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:43:24,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:24,925 INFO L85 PathProgramCache]: Analyzing trace with hash 210290802, now seen corresponding path program 1 times [2022-12-05 18:43:24,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:24,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089964236] [2022-12-05 18:43:24,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:24,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:25,695 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 18:43:25,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:25,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089964236] [2022-12-05 18:43:25,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089964236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:25,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:25,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-05 18:43:25,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471155105] [2022-12-05 18:43:25,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:25,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:43:25,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:25,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:43:25,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-05 18:43:25,701 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 377 [2022-12-05 18:43:25,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 370 transitions, 859 flow. Second operand has 12 states, 12 states have (on average 295.1666666666667) internal successors, (3542), 12 states have internal predecessors, (3542), 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 18:43:25,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:25,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 377 [2022-12-05 18:43:25,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:26,542 INFO L130 PetriNetUnfolder]: 555/2929 cut-off events. [2022-12-05 18:43:26,543 INFO L131 PetriNetUnfolder]: For 1800/1812 co-relation queries the response was YES. [2022-12-05 18:43:26,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4917 conditions, 2929 events. 555/2929 cut-off events. For 1800/1812 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 22872 event pairs, 41 based on Foata normal form. 15/2843 useless extension candidates. Maximal degree in co-relation 4891. Up to 390 conditions per place. [2022-12-05 18:43:26,560 INFO L137 encePairwiseOnDemand]: 363/377 looper letters, 118 selfloop transitions, 18 changer transitions 27/447 dead transitions. [2022-12-05 18:43:26,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 447 transitions, 1514 flow [2022-12-05 18:43:26,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:43:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:43:26,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 5378 transitions. [2022-12-05 18:43:26,569 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7925139994105511 [2022-12-05 18:43:26,569 INFO L175 Difference]: Start difference. First operand has 391 places, 370 transitions, 859 flow. Second operand 18 states and 5378 transitions. [2022-12-05 18:43:26,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 447 transitions, 1514 flow [2022-12-05 18:43:26,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 447 transitions, 1494 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-05 18:43:26,580 INFO L231 Difference]: Finished difference. Result has 402 places, 374 transitions, 960 flow [2022-12-05 18:43:26,581 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=960, PETRI_PLACES=402, PETRI_TRANSITIONS=374} [2022-12-05 18:43:26,581 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 43 predicate places. [2022-12-05 18:43:26,581 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 374 transitions, 960 flow [2022-12-05 18:43:26,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 295.1666666666667) internal successors, (3542), 12 states have internal predecessors, (3542), 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 18:43:26,583 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:26,583 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:26,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:43:26,584 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:43:26,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2126609865, now seen corresponding path program 1 times [2022-12-05 18:43:26,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:26,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838272560] [2022-12-05 18:43:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:26,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:28,231 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 18:43:28,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:28,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838272560] [2022-12-05 18:43:28,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838272560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:28,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:28,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:43:28,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426464444] [2022-12-05 18:43:28,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:28,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:43:28,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:28,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:43:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:43:28,241 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 377 [2022-12-05 18:43:28,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 374 transitions, 960 flow. Second operand has 16 states, 16 states have (on average 297.5) internal successors, (4760), 16 states have internal predecessors, (4760), 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 18:43:28,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:28,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 377 [2022-12-05 18:43:28,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:33,509 INFO L130 PetriNetUnfolder]: 4417/15067 cut-off events. [2022-12-05 18:43:33,509 INFO L131 PetriNetUnfolder]: For 13127/13131 co-relation queries the response was YES. [2022-12-05 18:43:33,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28052 conditions, 15067 events. 4417/15067 cut-off events. For 13127/13131 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 162407 event pairs, 116 based on Foata normal form. 8/14299 useless extension candidates. Maximal degree in co-relation 27913. Up to 1962 conditions per place. [2022-12-05 18:43:33,612 INFO L137 encePairwiseOnDemand]: 350/377 looper letters, 497 selfloop transitions, 132 changer transitions 102/1016 dead transitions. [2022-12-05 18:43:33,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1016 transitions, 4509 flow [2022-12-05 18:43:33,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-05 18:43:33,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2022-12-05 18:43:33,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 18352 transitions. [2022-12-05 18:43:33,637 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.81131741821397 [2022-12-05 18:43:33,638 INFO L175 Difference]: Start difference. First operand has 402 places, 374 transitions, 960 flow. Second operand 60 states and 18352 transitions. [2022-12-05 18:43:33,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1016 transitions, 4509 flow [2022-12-05 18:43:33,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 1016 transitions, 4409 flow, removed 19 selfloop flow, removed 11 redundant places. [2022-12-05 18:43:33,748 INFO L231 Difference]: Finished difference. Result has 485 places, 505 transitions, 2186 flow [2022-12-05 18:43:33,749 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=2186, PETRI_PLACES=485, PETRI_TRANSITIONS=505} [2022-12-05 18:43:33,749 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 126 predicate places. [2022-12-05 18:43:33,749 INFO L495 AbstractCegarLoop]: Abstraction has has 485 places, 505 transitions, 2186 flow [2022-12-05 18:43:33,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 297.5) internal successors, (4760), 16 states have internal predecessors, (4760), 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 18:43:33,752 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:33,752 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:33,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:43:33,752 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:43:33,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:33,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2139320231, now seen corresponding path program 2 times [2022-12-05 18:43:33,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:33,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883553562] [2022-12-05 18:43:33,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:33,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:35,177 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 18:43:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:35,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883553562] [2022-12-05 18:43:35,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883553562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:35,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:35,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:43:35,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892804212] [2022-12-05 18:43:35,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:35,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:43:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:35,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:43:35,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:43:35,183 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 377 [2022-12-05 18:43:35,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 505 transitions, 2186 flow. Second operand has 16 states, 16 states have (on average 297.5) internal successors, (4760), 16 states have internal predecessors, (4760), 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 18:43:35,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:35,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 377 [2022-12-05 18:43:35,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:41,942 INFO L130 PetriNetUnfolder]: 5856/21519 cut-off events. [2022-12-05 18:43:41,942 INFO L131 PetriNetUnfolder]: For 46071/46225 co-relation queries the response was YES. [2022-12-05 18:43:42,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48612 conditions, 21519 events. 5856/21519 cut-off events. For 46071/46225 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 247743 event pairs, 155 based on Foata normal form. 110/20406 useless extension candidates. Maximal degree in co-relation 43733. Up to 2728 conditions per place. [2022-12-05 18:43:42,140 INFO L137 encePairwiseOnDemand]: 351/377 looper letters, 382 selfloop transitions, 181 changer transitions 262/1110 dead transitions. [2022-12-05 18:43:42,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1110 transitions, 7358 flow [2022-12-05 18:43:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-12-05 18:43:42,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2022-12-05 18:43:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 19471 transitions. [2022-12-05 18:43:42,159 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8069877320954907 [2022-12-05 18:43:42,159 INFO L175 Difference]: Start difference. First operand has 485 places, 505 transitions, 2186 flow. Second operand 64 states and 19471 transitions. [2022-12-05 18:43:42,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 1110 transitions, 7358 flow [2022-12-05 18:43:42,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 1110 transitions, 6752 flow, removed 132 selfloop flow, removed 13 redundant places. [2022-12-05 18:43:42,479 INFO L231 Difference]: Finished difference. Result has 556 places, 562 transitions, 3469 flow [2022-12-05 18:43:42,480 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=1924, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=64, PETRI_FLOW=3469, PETRI_PLACES=556, PETRI_TRANSITIONS=562} [2022-12-05 18:43:42,481 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 197 predicate places. [2022-12-05 18:43:42,481 INFO L495 AbstractCegarLoop]: Abstraction has has 556 places, 562 transitions, 3469 flow [2022-12-05 18:43:42,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 297.5) internal successors, (4760), 16 states have internal predecessors, (4760), 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 18:43:42,485 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:42,485 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:42,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:43:42,486 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:43:42,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:42,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1618018173, now seen corresponding path program 1 times [2022-12-05 18:43:42,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:42,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251851277] [2022-12-05 18:43:42,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:42,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:44,115 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 18:43:44,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:44,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251851277] [2022-12-05 18:43:44,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251851277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:44,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:44,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-05 18:43:44,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370776649] [2022-12-05 18:43:44,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:44,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-05 18:43:44,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:44,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-05 18:43:44,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:43:44,120 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 377 [2022-12-05 18:43:44,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 562 transitions, 3469 flow. Second operand has 18 states, 18 states have (on average 292.1666666666667) internal successors, (5259), 18 states have internal predecessors, (5259), 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 18:43:44,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:44,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 377 [2022-12-05 18:43:44,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:53,928 INFO L130 PetriNetUnfolder]: 9263/31022 cut-off events. [2022-12-05 18:43:53,928 INFO L131 PetriNetUnfolder]: For 84661/85213 co-relation queries the response was YES. [2022-12-05 18:43:54,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80250 conditions, 31022 events. 9263/31022 cut-off events. For 84661/85213 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 363110 event pairs, 3785 based on Foata normal form. 36/29271 useless extension candidates. Maximal degree in co-relation 79794. Up to 6742 conditions per place. [2022-12-05 18:43:54,493 INFO L137 encePairwiseOnDemand]: 349/377 looper letters, 661 selfloop transitions, 169 changer transitions 275/1401 dead transitions. [2022-12-05 18:43:54,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 1401 transitions, 12521 flow [2022-12-05 18:43:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-12-05 18:43:54,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2022-12-05 18:43:54,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 20935 transitions. [2022-12-05 18:43:54,508 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7932929139825692 [2022-12-05 18:43:54,508 INFO L175 Difference]: Start difference. First operand has 556 places, 562 transitions, 3469 flow. Second operand 70 states and 20935 transitions. [2022-12-05 18:43:54,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 1401 transitions, 12521 flow [2022-12-05 18:43:55,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 1401 transitions, 10199 flow, removed 987 selfloop flow, removed 15 redundant places. [2022-12-05 18:43:55,834 INFO L231 Difference]: Finished difference. Result has 649 places, 708 transitions, 4915 flow [2022-12-05 18:43:55,835 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=2605, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=70, PETRI_FLOW=4915, PETRI_PLACES=649, PETRI_TRANSITIONS=708} [2022-12-05 18:43:55,836 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 290 predicate places. [2022-12-05 18:43:55,836 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 708 transitions, 4915 flow [2022-12-05 18:43:55,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 292.1666666666667) internal successors, (5259), 18 states have internal predecessors, (5259), 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 18:43:55,838 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:55,838 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:55,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:43:55,839 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:43:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:55,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1924763237, now seen corresponding path program 3 times [2022-12-05 18:43:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:55,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173516605] [2022-12-05 18:43:55,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:55,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:57,027 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 18:43:57,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:57,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173516605] [2022-12-05 18:43:57,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173516605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:57,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:57,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:43:57,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858456338] [2022-12-05 18:43:57,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:57,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:43:57,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:57,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:43:57,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:43:57,032 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 377 [2022-12-05 18:43:57,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 708 transitions, 4915 flow. Second operand has 16 states, 16 states have (on average 297.5) internal successors, (4760), 16 states have internal predecessors, (4760), 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 18:43:57,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:57,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 377 [2022-12-05 18:43:57,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:08,402 INFO L130 PetriNetUnfolder]: 9469/33004 cut-off events. [2022-12-05 18:44:08,403 INFO L131 PetriNetUnfolder]: For 200578/201448 co-relation queries the response was YES. [2022-12-05 18:44:09,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97879 conditions, 33004 events. 9469/33004 cut-off events. For 200578/201448 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 399249 event pairs, 1531 based on Foata normal form. 450/32232 useless extension candidates. Maximal degree in co-relation 97603. Up to 4968 conditions per place. [2022-12-05 18:44:09,500 INFO L137 encePairwiseOnDemand]: 351/377 looper letters, 608 selfloop transitions, 229 changer transitions 211/1341 dead transitions. [2022-12-05 18:44:09,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 684 places, 1341 transitions, 12751 flow [2022-12-05 18:44:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-05 18:44:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-12-05 18:44:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 15649 transitions. [2022-12-05 18:44:09,513 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8139075258750715 [2022-12-05 18:44:09,514 INFO L175 Difference]: Start difference. First operand has 649 places, 708 transitions, 4915 flow. Second operand 51 states and 15649 transitions. [2022-12-05 18:44:09,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 684 places, 1341 transitions, 12751 flow [2022-12-05 18:44:10,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 1341 transitions, 11785 flow, removed 439 selfloop flow, removed 18 redundant places. [2022-12-05 18:44:10,781 INFO L231 Difference]: Finished difference. Result has 689 places, 750 transitions, 6051 flow [2022-12-05 18:44:10,782 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=4580, PETRI_DIFFERENCE_MINUEND_PLACES=616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=6051, PETRI_PLACES=689, PETRI_TRANSITIONS=750} [2022-12-05 18:44:10,782 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 330 predicate places. [2022-12-05 18:44:10,783 INFO L495 AbstractCegarLoop]: Abstraction has has 689 places, 750 transitions, 6051 flow [2022-12-05 18:44:10,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 297.5) internal successors, (4760), 16 states have internal predecessors, (4760), 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 18:44:10,784 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:10,784 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:10,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:44:10,784 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:44:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1331804963, now seen corresponding path program 2 times [2022-12-05 18:44:10,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:10,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654448888] [2022-12-05 18:44:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:10,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:12,272 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 18:44:12,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:12,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654448888] [2022-12-05 18:44:12,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654448888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:12,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:12,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-05 18:44:12,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286490297] [2022-12-05 18:44:12,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:12,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-05 18:44:12,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:12,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-05 18:44:12,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:44:12,277 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 377 [2022-12-05 18:44:12,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 750 transitions, 6051 flow. Second operand has 18 states, 18 states have (on average 292.1666666666667) internal successors, (5259), 18 states have internal predecessors, (5259), 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 18:44:12,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:12,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 377 [2022-12-05 18:44:12,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:23,540 INFO L130 PetriNetUnfolder]: 10009/33830 cut-off events. [2022-12-05 18:44:23,541 INFO L131 PetriNetUnfolder]: For 204390/205120 co-relation queries the response was YES. [2022-12-05 18:44:24,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105566 conditions, 33830 events. 10009/33830 cut-off events. For 204390/205120 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 404641 event pairs, 4159 based on Foata normal form. 180/32613 useless extension candidates. Maximal degree in co-relation 105273. Up to 7461 conditions per place. [2022-12-05 18:44:24,799 INFO L137 encePairwiseOnDemand]: 351/377 looper letters, 750 selfloop transitions, 190 changer transitions 176/1410 dead transitions. [2022-12-05 18:44:24,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 732 places, 1410 transitions, 15072 flow [2022-12-05 18:44:24,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-05 18:44:24,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-05 18:44:24,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 14757 transitions. [2022-12-05 18:44:24,812 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7988415525361339 [2022-12-05 18:44:24,813 INFO L175 Difference]: Start difference. First operand has 689 places, 750 transitions, 6051 flow. Second operand 49 states and 14757 transitions. [2022-12-05 18:44:24,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 732 places, 1410 transitions, 15072 flow [2022-12-05 18:44:26,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 1410 transitions, 13580 flow, removed 547 selfloop flow, removed 49 redundant places. [2022-12-05 18:44:26,420 INFO L231 Difference]: Finished difference. Result has 702 places, 795 transitions, 6750 flow [2022-12-05 18:44:26,421 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=5517, PETRI_DIFFERENCE_MINUEND_PLACES=635, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=750, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=6750, PETRI_PLACES=702, PETRI_TRANSITIONS=795} [2022-12-05 18:44:26,421 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 343 predicate places. [2022-12-05 18:44:26,422 INFO L495 AbstractCegarLoop]: Abstraction has has 702 places, 795 transitions, 6750 flow [2022-12-05 18:44:26,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 292.1666666666667) internal successors, (5259), 18 states have internal predecessors, (5259), 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 18:44:26,424 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:26,424 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:26,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:44:26,424 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:44:26,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:26,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1311655987, now seen corresponding path program 4 times [2022-12-05 18:44:26,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:26,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025927799] [2022-12-05 18:44:26,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:26,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:27,597 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 18:44:27,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:27,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025927799] [2022-12-05 18:44:27,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025927799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:27,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:27,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 18:44:27,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593284756] [2022-12-05 18:44:27,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:27,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:44:27,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:27,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:44:27,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-12-05 18:44:27,601 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 377 [2022-12-05 18:44:27,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 702 places, 795 transitions, 6750 flow. Second operand has 17 states, 17 states have (on average 297.29411764705884) internal successors, (5054), 17 states have internal predecessors, (5054), 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 18:44:27,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:27,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 377 [2022-12-05 18:44:27,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:39,997 INFO L130 PetriNetUnfolder]: 10790/38527 cut-off events. [2022-12-05 18:44:39,997 INFO L131 PetriNetUnfolder]: For 222669/223213 co-relation queries the response was YES. [2022-12-05 18:44:41,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117581 conditions, 38527 events. 10790/38527 cut-off events. For 222669/223213 co-relation queries the response was YES. Maximal size of possible extension queue 843. Compared 485754 event pairs, 1021 based on Foata normal form. 264/37452 useless extension candidates. Maximal degree in co-relation 117291. Up to 8196 conditions per place. [2022-12-05 18:44:41,462 INFO L137 encePairwiseOnDemand]: 351/377 looper letters, 636 selfloop transitions, 279 changer transitions 120/1330 dead transitions. [2022-12-05 18:44:41,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 750 places, 1330 transitions, 14389 flow [2022-12-05 18:44:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-05 18:44:41,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-05 18:44:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 14962 transitions. [2022-12-05 18:44:41,487 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8099388296432631 [2022-12-05 18:44:41,487 INFO L175 Difference]: Start difference. First operand has 702 places, 795 transitions, 6750 flow. Second operand 49 states and 14962 transitions. [2022-12-05 18:44:41,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 750 places, 1330 transitions, 14389 flow [2022-12-05 18:44:43,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 728 places, 1330 transitions, 13836 flow, removed 110 selfloop flow, removed 22 redundant places. [2022-12-05 18:44:43,015 INFO L231 Difference]: Finished difference. Result has 750 places, 875 transitions, 8578 flow [2022-12-05 18:44:43,016 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=6389, PETRI_DIFFERENCE_MINUEND_PLACES=680, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=795, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=8578, PETRI_PLACES=750, PETRI_TRANSITIONS=875} [2022-12-05 18:44:43,017 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 391 predicate places. [2022-12-05 18:44:43,017 INFO L495 AbstractCegarLoop]: Abstraction has has 750 places, 875 transitions, 8578 flow [2022-12-05 18:44:43,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 297.29411764705884) internal successors, (5054), 17 states have internal predecessors, (5054), 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 18:44:43,019 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:43,019 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:43,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:44:43,019 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:44:43,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:43,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1993614843, now seen corresponding path program 3 times [2022-12-05 18:44:43,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:43,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589860468] [2022-12-05 18:44:43,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:44,465 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 18:44:44,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:44,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589860468] [2022-12-05 18:44:44,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589860468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:44,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:44,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-05 18:44:44,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360614849] [2022-12-05 18:44:44,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:44,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-05 18:44:44,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:44,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-05 18:44:44,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:44:44,469 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 377 [2022-12-05 18:44:44,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 750 places, 875 transitions, 8578 flow. Second operand has 18 states, 18 states have (on average 292.1666666666667) internal successors, (5259), 18 states have internal predecessors, (5259), 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 18:44:44,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:44,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 377 [2022-12-05 18:44:44,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:59,492 INFO L130 PetriNetUnfolder]: 12639/42471 cut-off events. [2022-12-05 18:44:59,493 INFO L131 PetriNetUnfolder]: For 342397/343147 co-relation queries the response was YES. [2022-12-05 18:45:00,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143957 conditions, 42471 events. 12639/42471 cut-off events. For 342397/343147 co-relation queries the response was YES. Maximal size of possible extension queue 1004. Compared 530765 event pairs, 4991 based on Foata normal form. 134/40859 useless extension candidates. Maximal degree in co-relation 143622. Up to 8918 conditions per place. [2022-12-05 18:45:00,983 INFO L137 encePairwiseOnDemand]: 351/377 looper letters, 985 selfloop transitions, 236 changer transitions 231/1748 dead transitions. [2022-12-05 18:45:00,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 809 places, 1748 transitions, 21441 flow [2022-12-05 18:45:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-05 18:45:00,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2022-12-05 18:45:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 18071 transitions. [2022-12-05 18:45:00,992 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.798894783377542 [2022-12-05 18:45:00,992 INFO L175 Difference]: Start difference. First operand has 750 places, 875 transitions, 8578 flow. Second operand 60 states and 18071 transitions. [2022-12-05 18:45:00,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 809 places, 1748 transitions, 21441 flow [2022-12-05 18:45:03,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 786 places, 1748 transitions, 19604 flow, removed 781 selfloop flow, removed 23 redundant places. [2022-12-05 18:45:03,942 INFO L231 Difference]: Finished difference. Result has 807 places, 948 transitions, 9788 flow [2022-12-05 18:45:03,944 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=7827, PETRI_DIFFERENCE_MINUEND_PLACES=727, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=9788, PETRI_PLACES=807, PETRI_TRANSITIONS=948} [2022-12-05 18:45:03,945 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 448 predicate places. [2022-12-05 18:45:03,945 INFO L495 AbstractCegarLoop]: Abstraction has has 807 places, 948 transitions, 9788 flow [2022-12-05 18:45:03,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 292.1666666666667) internal successors, (5259), 18 states have internal predecessors, (5259), 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 18:45:03,948 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:03,948 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:03,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 18:45:03,948 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:45:03,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:03,949 INFO L85 PathProgramCache]: Analyzing trace with hash -311715355, now seen corresponding path program 5 times [2022-12-05 18:45:03,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:03,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418605684] [2022-12-05 18:45:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:03,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:05,142 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 18:45:05,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:05,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418605684] [2022-12-05 18:45:05,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418605684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:05,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:05,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-05 18:45:05,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596975926] [2022-12-05 18:45:05,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:05,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-05 18:45:05,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:05,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-05 18:45:05,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:45:05,147 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 377 [2022-12-05 18:45:05,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 807 places, 948 transitions, 9788 flow. Second operand has 18 states, 18 states have (on average 292.1666666666667) internal successors, (5259), 18 states have internal predecessors, (5259), 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 18:45:05,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:05,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 377 [2022-12-05 18:45:05,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:21,318 INFO L130 PetriNetUnfolder]: 12835/44182 cut-off events. [2022-12-05 18:45:21,318 INFO L131 PetriNetUnfolder]: For 342648/343590 co-relation queries the response was YES. [2022-12-05 18:45:22,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150127 conditions, 44182 events. 12835/44182 cut-off events. For 342648/343590 co-relation queries the response was YES. Maximal size of possible extension queue 1052. Compared 559553 event pairs, 5119 based on Foata normal form. 302/42625 useless extension candidates. Maximal degree in co-relation 149752. Up to 8730 conditions per place. [2022-12-05 18:45:22,826 INFO L137 encePairwiseOnDemand]: 350/377 looper letters, 840 selfloop transitions, 351 changer transitions 177/1664 dead transitions. [2022-12-05 18:45:22,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 879 places, 1664 transitions, 19264 flow [2022-12-05 18:45:22,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-05 18:45:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2022-12-05 18:45:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 21824 transitions. [2022-12-05 18:45:22,837 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7929944406089895 [2022-12-05 18:45:22,837 INFO L175 Difference]: Start difference. First operand has 807 places, 948 transitions, 9788 flow. Second operand 73 states and 21824 transitions. [2022-12-05 18:45:22,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 879 places, 1664 transitions, 19264 flow [2022-12-05 18:45:25,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 858 places, 1664 transitions, 18520 flow, removed 260 selfloop flow, removed 21 redundant places. [2022-12-05 18:45:25,971 INFO L231 Difference]: Finished difference. Result has 887 places, 1074 transitions, 12584 flow [2022-12-05 18:45:25,973 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=377, PETRI_DIFFERENCE_MINUEND_FLOW=9279, PETRI_DIFFERENCE_MINUEND_PLACES=786, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=688, PETRI_DIFFERENCE_SUBTRAHEND_STATES=73, PETRI_FLOW=12584, PETRI_PLACES=887, PETRI_TRANSITIONS=1074} [2022-12-05 18:45:25,973 INFO L294 CegarLoopForPetriNet]: 359 programPoint places, 528 predicate places. [2022-12-05 18:45:25,973 INFO L495 AbstractCegarLoop]: Abstraction has has 887 places, 1074 transitions, 12584 flow [2022-12-05 18:45:25,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 292.1666666666667) internal successors, (5259), 18 states have internal predecessors, (5259), 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 18:45:25,974 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:25,974 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:25,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 18:45:25,974 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 18:45:25,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:25,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1145627001, now seen corresponding path program 4 times [2022-12-05 18:45:25,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:25,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910337384] [2022-12-05 18:45:25,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:25,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:26,933 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 18:45:26,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:26,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910337384] [2022-12-05 18:45:26,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910337384] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:26,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:26,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:45:26,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433354415] [2022-12-05 18:45:26,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:26,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:26,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:26,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:26,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:45:26,936 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 377 [2022-12-05 18:45:26,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 887 places, 1074 transitions, 12584 flow. Second operand has 16 states, 16 states have (on average 297.5) internal successors, (4760), 16 states have internal predecessors, (4760), 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 18:45:26,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:26,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 377 [2022-12-05 18:45:26,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand