/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_nvram_unlocked_ioctl_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:10:49,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:10:49,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:10:49,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:10:49,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:10:49,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:10:49,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:10:49,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:10:49,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:10:49,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:10:49,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:10:49,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:10:49,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:10:49,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:10:49,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:10:49,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:10:49,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:10:49,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:10:49,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:10:49,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:10:49,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:10:49,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:10:49,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:10:49,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:10:49,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:10:49,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:10:49,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:10:49,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:10:49,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:10:49,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:10:49,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:10:49,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:10:49,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:10:49,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:10:49,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:10:49,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:10:49,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:10:49,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:10:49,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:10:49,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:10:49,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:10:49,898 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 [2022-12-11 19:10:49,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:10:49,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:10:49,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:10:49,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:10:49,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:10:49,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:10:49,926 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:10:49,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:10:49,926 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:10:49,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:10:49,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:10:49,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:10:49,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:10:49,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:10:49,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:10:49,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:10:49,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:10:49,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:10:49,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:10:49,929 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:10:49,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:10:49,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:10:49,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:10:49,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:10:50,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:10:50,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:10:50,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:10:50,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:10:50,216 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:10:50,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-11 19:10:51,291 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:10:51,681 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:10:51,681 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-11 19:10:51,716 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34854c5fc/42fc1718a5fd4a6a86bd4672147d8389/FLAG34dfdeb85 [2022-12-11 19:10:51,730 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34854c5fc/42fc1718a5fd4a6a86bd4672147d8389 [2022-12-11 19:10:51,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:10:51,733 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:10:51,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:10:51,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:10:51,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:10:51,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:10:51" (1/1) ... [2022-12-11 19:10:51,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1172cce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:51, skipping insertion in model container [2022-12-11 19:10:51,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:10:51" (1/1) ... [2022-12-11 19:10:51,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:10:51,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:10:52,146 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-11 19:10:52,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:52,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:52,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:53,308 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-11 19:10:53,313 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:10:53,319 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:10:53,329 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:10:53,452 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:10:53,458 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:10:53,581 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-11 19:10:53,930 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:10:53,942 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:10:54,033 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-11 19:10:54,039 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-11 19:10:54,254 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-11 19:10:54,257 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-11 19:10:54,260 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-11 19:10:54,405 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-11 19:10:54,405 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:10:54,408 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-11 19:10:54,409 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:10:54,640 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-11 19:10:54,697 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-11 19:10:54,835 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-11 19:10:54,838 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-11 19:10:54,956 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-11 19:10:55,224 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-11 19:10:55,224 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-11 19:10:55,224 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-11 19:10:56,285 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-11 19:10:56,286 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:10:56,293 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:10:56,298 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:10:56,304 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:10:56,854 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-11 19:10:56,871 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-11 19:10:56,875 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-11 19:10:56,898 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-11 19:10:56,899 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-11 19:10:56,902 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-11 19:10:56,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:10:56,958 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:10:56,967 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-11 19:10:56,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,978 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:10:56,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:10:56,987 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-11 19:10:56,987 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:10:56,987 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:10:56,987 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:10:56,990 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:10:56,990 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:10:56,992 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-11 19:10:56,999 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:10:56,999 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:10:57,001 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-11 19:10:57,001 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-11 19:10:57,006 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-11 19:10:57,006 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-11 19:10:57,006 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-11 19:10:57,008 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-11 19:10:57,008 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:10:57,008 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-11 19:10:57,008 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:10:57,013 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-11 19:10:57,014 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-11 19:10:57,017 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-11 19:10:57,018 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-11 19:10:57,020 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-11 19:10:57,022 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-11 19:10:57,022 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-11 19:10:57,023 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-11 19:10:57,057 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-11 19:10:57,058 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:10:57,059 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:10:57,061 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:10:57,063 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:10:57,088 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-11 19:10:57,089 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-11 19:10:57,090 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-11 19:10:57,091 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-11 19:10:57,091 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-11 19:10:57,091 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-11 19:10:57,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:10:57,449 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:10:57,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57 WrapperNode [2022-12-11 19:10:57,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:10:57,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:10:57,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:10:57,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:10:57,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,562 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-11 19:10:57,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:10:57,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:10:57,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:10:57,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:10:57,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,607 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:10:57,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:10:57,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:10:57,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:10:57,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (1/1) ... [2022-12-11 19:10:57,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:10:57,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:10:57,648 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) [2022-12-11 19:10:57,654 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 [2022-12-11 19:10:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 19:10:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-11 19:10:57,680 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-11 19:10:57,680 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-11 19:10:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:10:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:10:57,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:10:57,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-11 19:10:57,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:10:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:10:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 19:10:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:10:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 19:10:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-11 19:10:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-11 19:10:57,687 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-11 19:10:57,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:10:57,688 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:10:58,123 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:10:58,125 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:10:58,418 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:10:58,437 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:10:58,437 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-11 19:10:58,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:10:58 BoogieIcfgContainer [2022-12-11 19:10:58,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:10:58,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:10:58,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:10:58,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:10:58,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:10:51" (1/3) ... [2022-12-11 19:10:58,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd24e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:10:58, skipping insertion in model container [2022-12-11 19:10:58,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:10:57" (2/3) ... [2022-12-11 19:10:58,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd24e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:10:58, skipping insertion in model container [2022-12-11 19:10:58,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:10:58" (3/3) ... [2022-12-11 19:10:58,444 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-11 19:10:58,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:10:58,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:10:58,456 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:10:58,513 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 19:10:58,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 331 transitions, 678 flow [2022-12-11 19:10:58,605 INFO L130 PetriNetUnfolder]: 11/329 cut-off events. [2022-12-11 19:10:58,605 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 19:10:58,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 329 events. 11/329 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 310 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-11 19:10:58,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 331 transitions, 678 flow [2022-12-11 19:10:58,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 321 transitions, 651 flow [2022-12-11 19:10:58,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:10:58,626 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;@6afae3a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:10:58,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 19:10:58,665 INFO L130 PetriNetUnfolder]: 7/288 cut-off events. [2022-12-11 19:10:58,666 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 19:10:58,666 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:10:58,666 INFO L214 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] [2022-12-11 19:10:58,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:10:58,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:10:58,670 INFO L85 PathProgramCache]: Analyzing trace with hash 290203800, now seen corresponding path program 1 times [2022-12-11 19:10:58,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:10:58,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573038059] [2022-12-11 19:10:58,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:10:58,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:10:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:10:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:10:59,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:10:59,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573038059] [2022-12-11 19:10:59,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573038059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:10:59,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:10:59,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:10:59,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817383953] [2022-12-11 19:10:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:10:59,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:10:59,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:10:59,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:10:59,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:10:59,506 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 331 [2022-12-11 19:10:59,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 321 transitions, 651 flow. Second operand has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 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) [2022-12-11 19:10:59,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:10:59,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 331 [2022-12-11 19:10:59,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:10:59,995 INFO L130 PetriNetUnfolder]: 340/1892 cut-off events. [2022-12-11 19:10:59,995 INFO L131 PetriNetUnfolder]: For 72/74 co-relation queries the response was YES. [2022-12-11 19:11:00,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 1892 events. 340/1892 cut-off events. For 72/74 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 13367 event pairs, 128 based on Foata normal form. 8/1772 useless extension candidates. Maximal degree in co-relation 2180. Up to 320 conditions per place. [2022-12-11 19:11:00,008 INFO L137 encePairwiseOnDemand]: 318/331 looper letters, 62 selfloop transitions, 9 changer transitions 41/379 dead transitions. [2022-12-11 19:11:00,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 379 transitions, 1028 flow [2022-12-11 19:11:00,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 19:11:00,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 19:11:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3440 transitions. [2022-12-11 19:11:00,024 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8660624370594159 [2022-12-11 19:11:00,025 INFO L175 Difference]: Start difference. First operand has 317 places, 321 transitions, 651 flow. Second operand 12 states and 3440 transitions. [2022-12-11 19:11:00,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 379 transitions, 1028 flow [2022-12-11 19:11:00,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 379 transitions, 1007 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:11:00,035 INFO L231 Difference]: Finished difference. Result has 333 places, 324 transitions, 737 flow [2022-12-11 19:11:00,037 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=737, PETRI_PLACES=333, PETRI_TRANSITIONS=324} [2022-12-11 19:11:00,040 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 16 predicate places. [2022-12-11 19:11:00,040 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 324 transitions, 737 flow [2022-12-11 19:11:00,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 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) [2022-12-11 19:11:00,041 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:00,041 INFO L214 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] [2022-12-11 19:11:00,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:11:00,041 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:00,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:00,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1231316228, now seen corresponding path program 1 times [2022-12-11 19:11:00,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:00,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446818532] [2022-12-11 19:11:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:00,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:00,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:00,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446818532] [2022-12-11 19:11:00,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446818532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:00,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:00,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-11 19:11:00,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664722377] [2022-12-11 19:11:00,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:00,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-11 19:11:00,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:00,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-11 19:11:00,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-11 19:11:00,856 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 331 [2022-12-11 19:11:00,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 324 transitions, 737 flow. Second operand has 12 states, 12 states have (on average 255.16666666666666) internal successors, (3062), 12 states have internal predecessors, (3062), 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) [2022-12-11 19:11:00,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:00,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 331 [2022-12-11 19:11:00,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:01,573 INFO L130 PetriNetUnfolder]: 290/1836 cut-off events. [2022-12-11 19:11:01,573 INFO L131 PetriNetUnfolder]: For 1840/2042 co-relation queries the response was YES. [2022-12-11 19:11:01,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3219 conditions, 1836 events. 290/1836 cut-off events. For 1840/2042 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 12775 event pairs, 13 based on Foata normal form. 7/1734 useless extension candidates. Maximal degree in co-relation 2847. Up to 230 conditions per place. [2022-12-11 19:11:01,585 INFO L137 encePairwiseOnDemand]: 316/331 looper letters, 90 selfloop transitions, 15 changer transitions 29/376 dead transitions. [2022-12-11 19:11:01,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 376 transitions, 1318 flow [2022-12-11 19:11:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-11 19:11:01,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-11 19:11:01,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4630 transitions. [2022-12-11 19:11:01,592 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7771064115474992 [2022-12-11 19:11:01,592 INFO L175 Difference]: Start difference. First operand has 333 places, 324 transitions, 737 flow. Second operand 18 states and 4630 transitions. [2022-12-11 19:11:01,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 376 transitions, 1318 flow [2022-12-11 19:11:01,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 376 transitions, 1298 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-12-11 19:11:01,605 INFO L231 Difference]: Finished difference. Result has 350 places, 325 transitions, 811 flow [2022-12-11 19:11:01,606 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=811, PETRI_PLACES=350, PETRI_TRANSITIONS=325} [2022-12-11 19:11:01,609 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 33 predicate places. [2022-12-11 19:11:01,610 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 325 transitions, 811 flow [2022-12-11 19:11:01,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 255.16666666666666) internal successors, (3062), 12 states have internal predecessors, (3062), 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) [2022-12-11 19:11:01,612 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:01,612 INFO L214 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] [2022-12-11 19:11:01,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:11:01,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:01,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:01,613 INFO L85 PathProgramCache]: Analyzing trace with hash 415412162, now seen corresponding path program 1 times [2022-12-11 19:11:01,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:01,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916418470] [2022-12-11 19:11:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:01,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:02,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:02,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916418470] [2022-12-11 19:11:02,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916418470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:02,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:02,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:11:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005171981] [2022-12-11 19:11:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:02,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:11:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:02,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:11:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:11:02,655 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:11:02,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 325 transitions, 811 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:02,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:02,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:11:02,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:03,722 INFO L130 PetriNetUnfolder]: 618/2735 cut-off events. [2022-12-11 19:11:03,722 INFO L131 PetriNetUnfolder]: For 3381/3385 co-relation queries the response was YES. [2022-12-11 19:11:03,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5211 conditions, 2735 events. 618/2735 cut-off events. For 3381/3385 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 20642 event pairs, 48 based on Foata normal form. 6/2622 useless extension candidates. Maximal degree in co-relation 4877. Up to 488 conditions per place. [2022-12-11 19:11:03,736 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 100 selfloop transitions, 22 changer transitions 66/444 dead transitions. [2022-12-11 19:11:03,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 444 transitions, 1709 flow [2022-12-11 19:11:03,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-11 19:11:03,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-11 19:11:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 7366 transitions. [2022-12-11 19:11:03,747 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8242139420387155 [2022-12-11 19:11:03,747 INFO L175 Difference]: Start difference. First operand has 350 places, 325 transitions, 811 flow. Second operand 27 states and 7366 transitions. [2022-12-11 19:11:03,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 444 transitions, 1709 flow [2022-12-11 19:11:03,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 444 transitions, 1579 flow, removed 36 selfloop flow, removed 17 redundant places. [2022-12-11 19:11:03,761 INFO L231 Difference]: Finished difference. Result has 374 places, 334 transitions, 926 flow [2022-12-11 19:11:03,762 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=926, PETRI_PLACES=374, PETRI_TRANSITIONS=334} [2022-12-11 19:11:03,763 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 57 predicate places. [2022-12-11 19:11:03,763 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 334 transitions, 926 flow [2022-12-11 19:11:03,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:03,765 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:03,765 INFO L214 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] [2022-12-11 19:11:03,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:11:03,765 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:03,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:03,766 INFO L85 PathProgramCache]: Analyzing trace with hash -821581140, now seen corresponding path program 2 times [2022-12-11 19:11:03,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:03,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109084566] [2022-12-11 19:11:03,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:03,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:04,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:04,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109084566] [2022-12-11 19:11:04,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109084566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:04,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:04,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:11:04,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909651316] [2022-12-11 19:11:04,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:04,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:11:04,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:04,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:11:04,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:11:04,544 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:11:04,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 334 transitions, 926 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:04,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:04,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:11:04,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:06,129 INFO L130 PetriNetUnfolder]: 1152/5125 cut-off events. [2022-12-11 19:11:06,129 INFO L131 PetriNetUnfolder]: For 11522/11558 co-relation queries the response was YES. [2022-12-11 19:11:06,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11075 conditions, 5125 events. 1152/5125 cut-off events. For 11522/11558 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 48672 event pairs, 115 based on Foata normal form. 12/4874 useless extension candidates. Maximal degree in co-relation 10424. Up to 523 conditions per place. [2022-12-11 19:11:06,161 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 164 selfloop transitions, 42 changer transitions 71/533 dead transitions. [2022-12-11 19:11:06,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 533 transitions, 2596 flow [2022-12-11 19:11:06,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-11 19:11:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-11 19:11:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 9840 transitions. [2022-12-11 19:11:06,177 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8257804632426989 [2022-12-11 19:11:06,177 INFO L175 Difference]: Start difference. First operand has 374 places, 334 transitions, 926 flow. Second operand 36 states and 9840 transitions. [2022-12-11 19:11:06,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 533 transitions, 2596 flow [2022-12-11 19:11:06,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 533 transitions, 2405 flow, removed 77 selfloop flow, removed 15 redundant places. [2022-12-11 19:11:06,214 INFO L231 Difference]: Finished difference. Result has 402 places, 360 transitions, 1301 flow [2022-12-11 19:11:06,215 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1301, PETRI_PLACES=402, PETRI_TRANSITIONS=360} [2022-12-11 19:11:06,216 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 85 predicate places. [2022-12-11 19:11:06,216 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 360 transitions, 1301 flow [2022-12-11 19:11:06,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:06,218 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:06,218 INFO L214 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] [2022-12-11 19:11:06,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 19:11:06,219 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:06,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:06,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1421797584, now seen corresponding path program 3 times [2022-12-11 19:11:06,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:06,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189459774] [2022-12-11 19:11:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:06,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:07,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:07,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:07,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189459774] [2022-12-11 19:11:07,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189459774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:07,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:07,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:11:07,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571197466] [2022-12-11 19:11:07,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:07,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:11:07,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:07,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:11:07,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:11:07,125 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:11:07,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 360 transitions, 1301 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:07,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:07,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:11:07,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:08,929 INFO L130 PetriNetUnfolder]: 1456/6596 cut-off events. [2022-12-11 19:11:08,930 INFO L131 PetriNetUnfolder]: For 26688/26778 co-relation queries the response was YES. [2022-12-11 19:11:08,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15278 conditions, 6596 events. 1456/6596 cut-off events. For 26688/26778 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 67384 event pairs, 220 based on Foata normal form. 21/6249 useless extension candidates. Maximal degree in co-relation 14280. Up to 1079 conditions per place. [2022-12-11 19:11:08,977 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 144 selfloop transitions, 56 changer transitions 42/498 dead transitions. [2022-12-11 19:11:08,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 498 transitions, 2785 flow [2022-12-11 19:11:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-11 19:11:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-11 19:11:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 7119 transitions. [2022-12-11 19:11:08,987 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8272135719265629 [2022-12-11 19:11:08,987 INFO L175 Difference]: Start difference. First operand has 402 places, 360 transitions, 1301 flow. Second operand 26 states and 7119 transitions. [2022-12-11 19:11:08,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 498 transitions, 2785 flow [2022-12-11 19:11:09,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 498 transitions, 2612 flow, removed 72 selfloop flow, removed 12 redundant places. [2022-12-11 19:11:09,114 INFO L231 Difference]: Finished difference. Result has 418 places, 378 transitions, 1652 flow [2022-12-11 19:11:09,115 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1223, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1652, PETRI_PLACES=418, PETRI_TRANSITIONS=378} [2022-12-11 19:11:09,117 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 101 predicate places. [2022-12-11 19:11:09,117 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 378 transitions, 1652 flow [2022-12-11 19:11:09,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:09,118 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:09,119 INFO L214 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] [2022-12-11 19:11:09,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 19:11:09,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:09,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1070621370, now seen corresponding path program 4 times [2022-12-11 19:11:09,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:09,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709240836] [2022-12-11 19:11:09,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:09,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:09,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:09,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709240836] [2022-12-11 19:11:09,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709240836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:09,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:09,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:11:09,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102363745] [2022-12-11 19:11:09,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:09,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:11:09,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:09,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:11:09,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:11:09,867 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:11:09,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 378 transitions, 1652 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:09,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:09,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:11:09,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:11,813 INFO L130 PetriNetUnfolder]: 1724/7963 cut-off events. [2022-12-11 19:11:11,813 INFO L131 PetriNetUnfolder]: For 49809/49927 co-relation queries the response was YES. [2022-12-11 19:11:11,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19412 conditions, 7963 events. 1724/7963 cut-off events. For 49809/49927 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 85436 event pairs, 248 based on Foata normal form. 30/7516 useless extension candidates. Maximal degree in co-relation 18946. Up to 1271 conditions per place. [2022-12-11 19:11:11,871 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 148 selfloop transitions, 68 changer transitions 70/542 dead transitions. [2022-12-11 19:11:11,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 542 transitions, 3358 flow [2022-12-11 19:11:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-11 19:11:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-11 19:11:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 9539 transitions. [2022-12-11 19:11:11,878 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8233923176521364 [2022-12-11 19:11:11,878 INFO L175 Difference]: Start difference. First operand has 418 places, 378 transitions, 1652 flow. Second operand 35 states and 9539 transitions. [2022-12-11 19:11:11,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 542 transitions, 3358 flow [2022-12-11 19:11:12,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 542 transitions, 3199 flow, removed 49 selfloop flow, removed 11 redundant places. [2022-12-11 19:11:12,012 INFO L231 Difference]: Finished difference. Result has 449 places, 396 transitions, 2062 flow [2022-12-11 19:11:12,012 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1568, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=2062, PETRI_PLACES=449, PETRI_TRANSITIONS=396} [2022-12-11 19:11:12,013 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 132 predicate places. [2022-12-11 19:11:12,013 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 396 transitions, 2062 flow [2022-12-11 19:11:12,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:12,014 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:12,014 INFO L214 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] [2022-12-11 19:11:12,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 19:11:12,015 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:12,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1767720252, now seen corresponding path program 5 times [2022-12-11 19:11:12,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:12,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623434371] [2022-12-11 19:11:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:12,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:12,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:12,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623434371] [2022-12-11 19:11:12,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623434371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:12,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:12,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:11:12,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396648058] [2022-12-11 19:11:12,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:12,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:11:12,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:12,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:11:12,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:11:12,893 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:11:12,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 396 transitions, 2062 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:12,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:12,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:11:12,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:15,095 INFO L130 PetriNetUnfolder]: 1638/7640 cut-off events. [2022-12-11 19:11:15,095 INFO L131 PetriNetUnfolder]: For 63948/64069 co-relation queries the response was YES. [2022-12-11 19:11:15,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19555 conditions, 7640 events. 1638/7640 cut-off events. For 63948/64069 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 81674 event pairs, 168 based on Foata normal form. 31/7204 useless extension candidates. Maximal degree in co-relation 19108. Up to 807 conditions per place. [2022-12-11 19:11:15,150 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 205 selfloop transitions, 64 changer transitions 43/568 dead transitions. [2022-12-11 19:11:15,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 568 transitions, 3939 flow [2022-12-11 19:11:15,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-11 19:11:15,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-11 19:11:15,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 10109 transitions. [2022-12-11 19:11:15,158 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8254266350943088 [2022-12-11 19:11:15,158 INFO L175 Difference]: Start difference. First operand has 449 places, 396 transitions, 2062 flow. Second operand 37 states and 10109 transitions. [2022-12-11 19:11:15,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 568 transitions, 3939 flow [2022-12-11 19:11:15,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 568 transitions, 3624 flow, removed 137 selfloop flow, removed 11 redundant places. [2022-12-11 19:11:15,314 INFO L231 Difference]: Finished difference. Result has 472 places, 403 transitions, 2225 flow [2022-12-11 19:11:15,314 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1913, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=2225, PETRI_PLACES=472, PETRI_TRANSITIONS=403} [2022-12-11 19:11:15,315 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 155 predicate places. [2022-12-11 19:11:15,315 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 403 transitions, 2225 flow [2022-12-11 19:11:15,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:15,316 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:15,316 INFO L214 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] [2022-12-11 19:11:15,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 19:11:15,316 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1845910158, now seen corresponding path program 6 times [2022-12-11 19:11:15,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:15,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747714749] [2022-12-11 19:11:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:15,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:15,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:15,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747714749] [2022-12-11 19:11:15,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747714749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:15,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:15,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:11:15,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419193870] [2022-12-11 19:11:15,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:15,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:11:15,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:15,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:11:15,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:11:15,932 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:11:15,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 403 transitions, 2225 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:15,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:15,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:11:15,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:18,193 INFO L130 PetriNetUnfolder]: 1844/8656 cut-off events. [2022-12-11 19:11:18,193 INFO L131 PetriNetUnfolder]: For 79247/79365 co-relation queries the response was YES. [2022-12-11 19:11:18,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22617 conditions, 8656 events. 1844/8656 cut-off events. For 79247/79365 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 95818 event pairs, 290 based on Foata normal form. 30/8161 useless extension candidates. Maximal degree in co-relation 22335. Up to 1151 conditions per place. [2022-12-11 19:11:18,286 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 188 selfloop transitions, 73 changer transitions 39/556 dead transitions. [2022-12-11 19:11:18,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 556 transitions, 4083 flow [2022-12-11 19:11:18,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-11 19:11:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-11 19:11:18,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8742 transitions. [2022-12-11 19:11:18,294 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8253398791540786 [2022-12-11 19:11:18,295 INFO L175 Difference]: Start difference. First operand has 472 places, 403 transitions, 2225 flow. Second operand 32 states and 8742 transitions. [2022-12-11 19:11:18,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 556 transitions, 4083 flow [2022-12-11 19:11:18,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 556 transitions, 3881 flow, removed 53 selfloop flow, removed 14 redundant places. [2022-12-11 19:11:18,459 INFO L231 Difference]: Finished difference. Result has 497 places, 419 transitions, 2590 flow [2022-12-11 19:11:18,460 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=2073, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=2590, PETRI_PLACES=497, PETRI_TRANSITIONS=419} [2022-12-11 19:11:18,462 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 180 predicate places. [2022-12-11 19:11:18,462 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 419 transitions, 2590 flow [2022-12-11 19:11:18,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:18,463 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:18,464 INFO L214 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] [2022-12-11 19:11:18,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-11 19:11:18,464 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:18,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:18,464 INFO L85 PathProgramCache]: Analyzing trace with hash -808923364, now seen corresponding path program 7 times [2022-12-11 19:11:18,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:18,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58629034] [2022-12-11 19:11:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:19,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:19,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58629034] [2022-12-11 19:11:19,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58629034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:19,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:19,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:11:19,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180275340] [2022-12-11 19:11:19,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:19,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:11:19,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:19,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:11:19,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:11:19,470 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 331 [2022-12-11 19:11:19,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 419 transitions, 2590 flow. Second operand has 16 states, 16 states have (on average 249.25) internal successors, (3988), 16 states have internal predecessors, (3988), 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) [2022-12-11 19:11:19,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:19,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 331 [2022-12-11 19:11:19,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:21,524 INFO L130 PetriNetUnfolder]: 1806/8569 cut-off events. [2022-12-11 19:11:21,524 INFO L131 PetriNetUnfolder]: For 101599/101813 co-relation queries the response was YES. [2022-12-11 19:11:21,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23412 conditions, 8569 events. 1806/8569 cut-off events. For 101599/101813 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 94908 event pairs, 356 based on Foata normal form. 32/8110 useless extension candidates. Maximal degree in co-relation 23114. Up to 1938 conditions per place. [2022-12-11 19:11:21,617 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 150 selfloop transitions, 79 changer transitions 26/492 dead transitions. [2022-12-11 19:11:21,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 492 transitions, 3936 flow [2022-12-11 19:11:21,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-11 19:11:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-11 19:11:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6292 transitions. [2022-12-11 19:11:21,622 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7603625377643505 [2022-12-11 19:11:21,622 INFO L175 Difference]: Start difference. First operand has 497 places, 419 transitions, 2590 flow. Second operand 25 states and 6292 transitions. [2022-12-11 19:11:21,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 492 transitions, 3936 flow [2022-12-11 19:11:21,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 492 transitions, 3769 flow, removed 55 selfloop flow, removed 13 redundant places. [2022-12-11 19:11:21,786 INFO L231 Difference]: Finished difference. Result has 514 places, 426 transitions, 2865 flow [2022-12-11 19:11:21,787 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=2436, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2865, PETRI_PLACES=514, PETRI_TRANSITIONS=426} [2022-12-11 19:11:21,787 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 197 predicate places. [2022-12-11 19:11:21,788 INFO L495 AbstractCegarLoop]: Abstraction has has 514 places, 426 transitions, 2865 flow [2022-12-11 19:11:21,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 249.25) internal successors, (3988), 16 states have internal predecessors, (3988), 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) [2022-12-11 19:11:21,789 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:21,790 INFO L214 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] [2022-12-11 19:11:21,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-11 19:11:21,790 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:21,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:21,790 INFO L85 PathProgramCache]: Analyzing trace with hash 186963598, now seen corresponding path program 8 times [2022-12-11 19:11:21,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:21,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582077605] [2022-12-11 19:11:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:21,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:22,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:22,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582077605] [2022-12-11 19:11:22,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582077605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:22,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:22,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:11:22,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779234080] [2022-12-11 19:11:22,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:22,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:11:22,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:22,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:11:22,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:11:22,526 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:11:22,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 426 transitions, 2865 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:22,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:22,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:11:22,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:24,872 INFO L130 PetriNetUnfolder]: 1800/8533 cut-off events. [2022-12-11 19:11:24,873 INFO L131 PetriNetUnfolder]: For 126782/126946 co-relation queries the response was YES. [2022-12-11 19:11:24,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24022 conditions, 8533 events. 1800/8533 cut-off events. For 126782/126946 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 94363 event pairs, 260 based on Foata normal form. 40/8063 useless extension candidates. Maximal degree in co-relation 23701. Up to 1133 conditions per place. [2022-12-11 19:11:24,973 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 227 selfloop transitions, 74 changer transitions 42/599 dead transitions. [2022-12-11 19:11:24,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 599 transitions, 4885 flow [2022-12-11 19:11:24,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-11 19:11:24,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-11 19:11:25,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 10379 transitions. [2022-12-11 19:11:25,145 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8251709333757354 [2022-12-11 19:11:25,146 INFO L175 Difference]: Start difference. First operand has 514 places, 426 transitions, 2865 flow. Second operand 38 states and 10379 transitions. [2022-12-11 19:11:25,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 599 transitions, 4885 flow [2022-12-11 19:11:25,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 599 transitions, 4656 flow, removed 66 selfloop flow, removed 14 redundant places. [2022-12-11 19:11:25,319 INFO L231 Difference]: Finished difference. Result has 544 places, 432 transitions, 3032 flow [2022-12-11 19:11:25,320 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=2670, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=3032, PETRI_PLACES=544, PETRI_TRANSITIONS=432} [2022-12-11 19:11:25,320 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 227 predicate places. [2022-12-11 19:11:25,320 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 432 transitions, 3032 flow [2022-12-11 19:11:25,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 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) [2022-12-11 19:11:25,321 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:25,321 INFO L214 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] [2022-12-11 19:11:25,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-11 19:11:25,322 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:25,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:25,322 INFO L85 PathProgramCache]: Analyzing trace with hash 125025985, now seen corresponding path program 1 times [2022-12-11 19:11:25,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:25,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907074570] [2022-12-11 19:11:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:25,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:25,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:25,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:25,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907074570] [2022-12-11 19:11:25,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907074570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:25,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:25,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:11:25,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940722417] [2022-12-11 19:11:25,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:25,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:11:25,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:25,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:11:25,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:11:25,957 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:11:25,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 432 transitions, 3032 flow. Second operand has 14 states, 14 states have (on average 269.64285714285717) internal successors, (3775), 14 states have internal predecessors, (3775), 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) [2022-12-11 19:11:25,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:25,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:11:25,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:28,670 INFO L130 PetriNetUnfolder]: 3073/11697 cut-off events. [2022-12-11 19:11:28,670 INFO L131 PetriNetUnfolder]: For 201537/201601 co-relation queries the response was YES. [2022-12-11 19:11:28,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37305 conditions, 11697 events. 3073/11697 cut-off events. For 201537/201601 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 133901 event pairs, 114 based on Foata normal form. 18/11242 useless extension candidates. Maximal degree in co-relation 36994. Up to 1928 conditions per place. [2022-12-11 19:11:28,789 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 143 selfloop transitions, 79 changer transitions 147/635 dead transitions. [2022-12-11 19:11:28,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 635 transitions, 6330 flow [2022-12-11 19:11:28,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-11 19:11:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-11 19:11:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6832 transitions. [2022-12-11 19:11:28,794 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.825619335347432 [2022-12-11 19:11:28,794 INFO L175 Difference]: Start difference. First operand has 544 places, 432 transitions, 3032 flow. Second operand 25 states and 6832 transitions. [2022-12-11 19:11:28,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 635 transitions, 6330 flow [2022-12-11 19:11:29,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 635 transitions, 5848 flow, removed 98 selfloop flow, removed 19 redundant places. [2022-12-11 19:11:29,315 INFO L231 Difference]: Finished difference. Result has 560 places, 442 transitions, 3330 flow [2022-12-11 19:11:29,316 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=2755, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=3330, PETRI_PLACES=560, PETRI_TRANSITIONS=442} [2022-12-11 19:11:29,316 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 243 predicate places. [2022-12-11 19:11:29,317 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 442 transitions, 3330 flow [2022-12-11 19:11:29,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.64285714285717) internal successors, (3775), 14 states have internal predecessors, (3775), 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) [2022-12-11 19:11:29,317 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:29,318 INFO L214 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] [2022-12-11 19:11:29,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 19:11:29,318 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:29,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:29,318 INFO L85 PathProgramCache]: Analyzing trace with hash -506868579, now seen corresponding path program 2 times [2022-12-11 19:11:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:29,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857696327] [2022-12-11 19:11:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:29,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:31,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:31,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:31,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857696327] [2022-12-11 19:11:31,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857696327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:31,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:31,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-11 19:11:31,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205128533] [2022-12-11 19:11:31,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:31,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-11 19:11:31,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:31,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-11 19:11:31,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2022-12-11 19:11:31,300 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-11 19:11:31,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 442 transitions, 3330 flow. Second operand has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:11:31,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:31,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-11 19:11:31,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:11:48,161 INFO L130 PetriNetUnfolder]: 9555/34519 cut-off events. [2022-12-11 19:11:48,162 INFO L131 PetriNetUnfolder]: For 809143/810249 co-relation queries the response was YES. [2022-12-11 19:11:48,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119084 conditions, 34519 events. 9555/34519 cut-off events. For 809143/810249 co-relation queries the response was YES. Maximal size of possible extension queue 1271. Compared 454095 event pairs, 3183 based on Foata normal form. 352/32921 useless extension candidates. Maximal degree in co-relation 118303. Up to 5216 conditions per place. [2022-12-11 19:11:48,642 INFO L137 encePairwiseOnDemand]: 300/331 looper letters, 565 selfloop transitions, 233 changer transitions 370/1391 dead transitions. [2022-12-11 19:11:48,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 677 places, 1391 transitions, 15781 flow [2022-12-11 19:11:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-12-11 19:11:48,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2022-12-11 19:11:48,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 30171 transitions. [2022-12-11 19:11:48,663 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7121176359516617 [2022-12-11 19:11:48,663 INFO L175 Difference]: Start difference. First operand has 560 places, 442 transitions, 3330 flow. Second operand 128 states and 30171 transitions. [2022-12-11 19:11:48,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 677 places, 1391 transitions, 15781 flow [2022-12-11 19:11:52,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 1391 transitions, 15138 flow, removed 233 selfloop flow, removed 20 redundant places. [2022-12-11 19:11:52,988 INFO L231 Difference]: Finished difference. Result has 715 places, 606 transitions, 7948 flow [2022-12-11 19:11:52,989 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=3241, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=128, PETRI_FLOW=7948, PETRI_PLACES=715, PETRI_TRANSITIONS=606} [2022-12-11 19:11:52,990 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 398 predicate places. [2022-12-11 19:11:52,990 INFO L495 AbstractCegarLoop]: Abstraction has has 715 places, 606 transitions, 7948 flow [2022-12-11 19:11:52,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:11:52,991 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:11:52,991 INFO L214 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] [2022-12-11 19:11:52,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-11 19:11:52,991 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:11:52,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:11:52,992 INFO L85 PathProgramCache]: Analyzing trace with hash -514857701, now seen corresponding path program 3 times [2022-12-11 19:11:52,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:11:52,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392147445] [2022-12-11 19:11:52,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:11:52,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:11:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:11:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:11:54,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:11:54,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392147445] [2022-12-11 19:11:54,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392147445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:11:54,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:11:54,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-11 19:11:54,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398109950] [2022-12-11 19:11:54,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:11:54,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-11 19:11:54,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:11:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-11 19:11:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2022-12-11 19:11:54,955 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-11 19:11:54,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 715 places, 606 transitions, 7948 flow. Second operand has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:11:54,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:11:54,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-11 19:11:54,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:06,959 INFO L130 PetriNetUnfolder]: 9749/36251 cut-off events. [2022-12-11 19:12:06,959 INFO L131 PetriNetUnfolder]: For 1023359/1025403 co-relation queries the response was YES. [2022-12-11 19:12:07,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142836 conditions, 36251 events. 9749/36251 cut-off events. For 1023359/1025403 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 484482 event pairs, 4049 based on Foata normal form. 433/34908 useless extension candidates. Maximal degree in co-relation 142291. Up to 7251 conditions per place. [2022-12-11 19:12:07,785 INFO L137 encePairwiseOnDemand]: 299/331 looper letters, 352 selfloop transitions, 207 changer transitions 115/897 dead transitions. [2022-12-11 19:12:07,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 697 places, 897 transitions, 11961 flow [2022-12-11 19:12:07,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-11 19:12:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-12-11 19:12:07,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 9325 transitions. [2022-12-11 19:12:07,791 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7223642420017042 [2022-12-11 19:12:07,791 INFO L175 Difference]: Start difference. First operand has 715 places, 606 transitions, 7948 flow. Second operand 39 states and 9325 transitions. [2022-12-11 19:12:07,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 697 places, 897 transitions, 11961 flow [2022-12-11 19:12:17,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 897 transitions, 10387 flow, removed 769 selfloop flow, removed 38 redundant places. [2022-12-11 19:12:17,481 INFO L231 Difference]: Finished difference. Result has 672 places, 616 transitions, 7636 flow [2022-12-11 19:12:17,481 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=6983, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=7636, PETRI_PLACES=672, PETRI_TRANSITIONS=616} [2022-12-11 19:12:17,482 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 355 predicate places. [2022-12-11 19:12:17,482 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 616 transitions, 7636 flow [2022-12-11 19:12:17,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:12:17,483 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:17,483 INFO L214 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] [2022-12-11 19:12:17,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-11 19:12:17,483 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:12:17,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:17,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1403115309, now seen corresponding path program 4 times [2022-12-11 19:12:17,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:17,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014291574] [2022-12-11 19:12:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:17,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:18,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014291574] [2022-12-11 19:12:18,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014291574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:18,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:18,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:12:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73551533] [2022-12-11 19:12:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:18,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:12:18,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:18,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:12:18,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:12:18,077 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:12:18,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 616 transitions, 7636 flow. Second operand has 14 states, 14 states have (on average 269.64285714285717) internal successors, (3775), 14 states have internal predecessors, (3775), 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) [2022-12-11 19:12:18,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:18,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:12:18,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:24,964 INFO L130 PetriNetUnfolder]: 6556/25823 cut-off events. [2022-12-11 19:12:24,964 INFO L131 PetriNetUnfolder]: For 382138/383314 co-relation queries the response was YES. [2022-12-11 19:12:25,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91376 conditions, 25823 events. 6556/25823 cut-off events. For 382138/383314 co-relation queries the response was YES. Maximal size of possible extension queue 1035. Compared 338923 event pairs, 660 based on Foata normal form. 225/25237 useless extension candidates. Maximal degree in co-relation 90955. Up to 3557 conditions per place. [2022-12-11 19:12:25,395 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 196 selfloop transitions, 162 changer transitions 115/761 dead transitions. [2022-12-11 19:12:25,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 761 transitions, 10286 flow [2022-12-11 19:12:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 19:12:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 19:12:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5479 transitions. [2022-12-11 19:12:25,398 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8276435045317221 [2022-12-11 19:12:25,398 INFO L175 Difference]: Start difference. First operand has 672 places, 616 transitions, 7636 flow. Second operand 20 states and 5479 transitions. [2022-12-11 19:12:25,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 761 transitions, 10286 flow [2022-12-11 19:12:28,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 661 places, 761 transitions, 9784 flow, removed 144 selfloop flow, removed 21 redundant places. [2022-12-11 19:12:28,257 INFO L231 Difference]: Finished difference. Result has 666 places, 586 transitions, 6501 flow [2022-12-11 19:12:28,258 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=7166, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6501, PETRI_PLACES=666, PETRI_TRANSITIONS=586} [2022-12-11 19:12:28,258 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 349 predicate places. [2022-12-11 19:12:28,258 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 586 transitions, 6501 flow [2022-12-11 19:12:28,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.64285714285717) internal successors, (3775), 14 states have internal predecessors, (3775), 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) [2022-12-11 19:12:28,259 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:28,259 INFO L214 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] [2022-12-11 19:12:28,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-11 19:12:28,259 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:12:28,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:28,260 INFO L85 PathProgramCache]: Analyzing trace with hash -853778777, now seen corresponding path program 5 times [2022-12-11 19:12:28,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:28,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447885084] [2022-12-11 19:12:28,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:28,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:33,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:33,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447885084] [2022-12-11 19:12:33,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447885084] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:33,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:33,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-12-11 19:12:33,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209426026] [2022-12-11 19:12:33,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:33,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-11 19:12:33,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:33,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-11 19:12:33,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1817, Unknown=0, NotChecked=0, Total=1980 [2022-12-11 19:12:33,537 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 331 [2022-12-11 19:12:33,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 586 transitions, 6501 flow. Second operand has 45 states, 45 states have (on average 189.66666666666666) internal successors, (8535), 45 states have internal predecessors, (8535), 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) [2022-12-11 19:12:33,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:33,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 331 [2022-12-11 19:12:33,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:45,199 INFO L130 PetriNetUnfolder]: 8977/33391 cut-off events. [2022-12-11 19:12:45,199 INFO L131 PetriNetUnfolder]: For 355561/357429 co-relation queries the response was YES. [2022-12-11 19:12:46,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103442 conditions, 33391 events. 8977/33391 cut-off events. For 355561/357429 co-relation queries the response was YES. Maximal size of possible extension queue 1003. Compared 435471 event pairs, 3373 based on Foata normal form. 720/32647 useless extension candidates. Maximal degree in co-relation 102909. Up to 6882 conditions per place. [2022-12-11 19:12:46,112 INFO L137 encePairwiseOnDemand]: 266/331 looper letters, 314 selfloop transitions, 174 changer transitions 202/871 dead transitions. [2022-12-11 19:12:46,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 721 places, 871 transitions, 11436 flow [2022-12-11 19:12:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-11 19:12:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2022-12-11 19:12:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 12134 transitions. [2022-12-11 19:12:46,121 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5818827027286242 [2022-12-11 19:12:46,121 INFO L175 Difference]: Start difference. First operand has 666 places, 586 transitions, 6501 flow. Second operand 63 states and 12134 transitions. [2022-12-11 19:12:46,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 721 places, 871 transitions, 11436 flow [2022-12-11 19:12:48,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 705 places, 871 transitions, 10762 flow, removed 82 selfloop flow, removed 16 redundant places. [2022-12-11 19:12:48,765 INFO L231 Difference]: Finished difference. Result has 724 places, 565 transitions, 6274 flow [2022-12-11 19:12:48,766 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=6143, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=6274, PETRI_PLACES=724, PETRI_TRANSITIONS=565} [2022-12-11 19:12:48,767 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 407 predicate places. [2022-12-11 19:12:48,767 INFO L495 AbstractCegarLoop]: Abstraction has has 724 places, 565 transitions, 6274 flow [2022-12-11 19:12:48,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 189.66666666666666) internal successors, (8535), 45 states have internal predecessors, (8535), 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) [2022-12-11 19:12:48,768 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:48,768 INFO L214 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] [2022-12-11 19:12:48,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-11 19:12:48,769 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:12:48,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:48,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1148324239, now seen corresponding path program 6 times [2022-12-11 19:12:48,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:48,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483089219] [2022-12-11 19:12:48,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:48,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:49,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:49,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483089219] [2022-12-11 19:12:49,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483089219] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:49,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:49,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-11 19:12:49,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900191105] [2022-12-11 19:12:49,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:49,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-11 19:12:49,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-11 19:12:49,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-12-11 19:12:49,796 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-11 19:12:49,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 724 places, 565 transitions, 6274 flow. Second operand has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 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) [2022-12-11 19:12:49,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:49,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-11 19:12:49,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:56,066 INFO L130 PetriNetUnfolder]: 6095/24959 cut-off events. [2022-12-11 19:12:56,066 INFO L131 PetriNetUnfolder]: For 302496/303659 co-relation queries the response was YES. [2022-12-11 19:12:56,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77656 conditions, 24959 events. 6095/24959 cut-off events. For 302496/303659 co-relation queries the response was YES. Maximal size of possible extension queue 791. Compared 317675 event pairs, 1571 based on Foata normal form. 290/24078 useless extension candidates. Maximal degree in co-relation 77328. Up to 6343 conditions per place. [2022-12-11 19:12:56,333 INFO L137 encePairwiseOnDemand]: 311/331 looper letters, 165 selfloop transitions, 95 changer transitions 193/716 dead transitions. [2022-12-11 19:12:56,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 714 places, 716 transitions, 8753 flow [2022-12-11 19:12:56,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-11 19:12:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-11 19:12:56,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8127 transitions. [2022-12-11 19:12:56,337 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8184290030211481 [2022-12-11 19:12:56,337 INFO L175 Difference]: Start difference. First operand has 724 places, 565 transitions, 6274 flow. Second operand 30 states and 8127 transitions. [2022-12-11 19:12:56,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 714 places, 716 transitions, 8753 flow [2022-12-11 19:12:57,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 669 places, 716 transitions, 8379 flow, removed 118 selfloop flow, removed 45 redundant places. [2022-12-11 19:12:57,469 INFO L231 Difference]: Finished difference. Result has 681 places, 478 transitions, 4526 flow [2022-12-11 19:12:57,470 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=5988, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4526, PETRI_PLACES=681, PETRI_TRANSITIONS=478} [2022-12-11 19:12:57,470 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 364 predicate places. [2022-12-11 19:12:57,470 INFO L495 AbstractCegarLoop]: Abstraction has has 681 places, 478 transitions, 4526 flow [2022-12-11 19:12:57,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 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) [2022-12-11 19:12:57,471 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:57,471 INFO L214 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] [2022-12-11 19:12:57,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-11 19:12:57,472 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:12:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:57,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1288133697, now seen corresponding path program 7 times [2022-12-11 19:12:57,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:57,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369393763] [2022-12-11 19:12:57,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:57,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:58,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:58,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369393763] [2022-12-11 19:12:58,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369393763] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:58,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:58,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:12:58,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101622708] [2022-12-11 19:12:58,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:58,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:12:58,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:58,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:12:58,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:12:58,212 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-11 19:12:58,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 681 places, 478 transitions, 4526 flow. Second operand has 16 states, 16 states have (on average 267.3125) internal successors, (4277), 16 states have internal predecessors, (4277), 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) [2022-12-11 19:12:58,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:58,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-11 19:12:58,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:04,282 INFO L130 PetriNetUnfolder]: 5189/21816 cut-off events. [2022-12-11 19:13:04,283 INFO L131 PetriNetUnfolder]: For 339978/340571 co-relation queries the response was YES. [2022-12-11 19:13:04,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69884 conditions, 21816 events. 5189/21816 cut-off events. For 339978/340571 co-relation queries the response was YES. Maximal size of possible extension queue 671. Compared 272849 event pairs, 862 based on Foata normal form. 162/21166 useless extension candidates. Maximal degree in co-relation 69750. Up to 1948 conditions per place. [2022-12-11 19:13:04,583 INFO L137 encePairwiseOnDemand]: 311/331 looper letters, 264 selfloop transitions, 118 changer transitions 180/825 dead transitions. [2022-12-11 19:13:04,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 825 transitions, 9540 flow [2022-12-11 19:13:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-11 19:13:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-11 19:13:04,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 11948 transitions. [2022-12-11 19:13:04,588 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8203790167536391 [2022-12-11 19:13:04,588 INFO L175 Difference]: Start difference. First operand has 681 places, 478 transitions, 4526 flow. Second operand 44 states and 11948 transitions. [2022-12-11 19:13:04,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 825 transitions, 9540 flow [2022-12-11 19:13:05,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 825 transitions, 8260 flow, removed 221 selfloop flow, removed 64 redundant places. [2022-12-11 19:13:05,781 INFO L231 Difference]: Finished difference. Result has 605 places, 508 transitions, 4865 flow [2022-12-11 19:13:05,782 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=3929, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=4865, PETRI_PLACES=605, PETRI_TRANSITIONS=508} [2022-12-11 19:13:05,782 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 288 predicate places. [2022-12-11 19:13:05,782 INFO L495 AbstractCegarLoop]: Abstraction has has 605 places, 508 transitions, 4865 flow [2022-12-11 19:13:05,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 267.3125) internal successors, (4277), 16 states have internal predecessors, (4277), 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) [2022-12-11 19:13:05,783 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:05,783 INFO L214 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] [2022-12-11 19:13:05,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-11 19:13:05,783 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:05,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:05,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2145276289, now seen corresponding path program 8 times [2022-12-11 19:13:05,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:05,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126535669] [2022-12-11 19:13:05,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:05,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:06,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:06,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126535669] [2022-12-11 19:13:06,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126535669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:06,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:06,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-11 19:13:06,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588879972] [2022-12-11 19:13:06,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:06,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:13:06,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:06,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:13:06,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:13:06,409 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-11 19:13:06,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 508 transitions, 4865 flow. Second operand has 14 states, 14 states have (on average 269.64285714285717) internal successors, (3775), 14 states have internal predecessors, (3775), 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) [2022-12-11 19:13:06,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:06,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-11 19:13:06,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:10,058 INFO L130 PetriNetUnfolder]: 4153/16467 cut-off events. [2022-12-11 19:13:10,059 INFO L131 PetriNetUnfolder]: For 161618/162262 co-relation queries the response was YES. [2022-12-11 19:13:10,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47611 conditions, 16467 events. 4153/16467 cut-off events. For 161618/162262 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 195080 event pairs, 780 based on Foata normal form. 143/15973 useless extension candidates. Maximal degree in co-relation 47512. Up to 3529 conditions per place. [2022-12-11 19:13:10,225 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 162 selfloop transitions, 69 changer transitions 118/622 dead transitions. [2022-12-11 19:13:10,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 622 transitions, 6427 flow [2022-12-11 19:13:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 19:13:10,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 19:13:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5479 transitions. [2022-12-11 19:13:10,228 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8276435045317221 [2022-12-11 19:13:10,228 INFO L175 Difference]: Start difference. First operand has 605 places, 508 transitions, 4865 flow. Second operand 20 states and 5479 transitions. [2022-12-11 19:13:10,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 622 transitions, 6427 flow [2022-12-11 19:13:10,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 622 transitions, 6173 flow, removed 48 selfloop flow, removed 22 redundant places. [2022-12-11 19:13:10,725 INFO L231 Difference]: Finished difference. Result has 588 places, 470 transitions, 3853 flow [2022-12-11 19:13:10,726 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=4639, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3853, PETRI_PLACES=588, PETRI_TRANSITIONS=470} [2022-12-11 19:13:10,726 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 271 predicate places. [2022-12-11 19:13:10,726 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 470 transitions, 3853 flow [2022-12-11 19:13:10,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.64285714285717) internal successors, (3775), 14 states have internal predecessors, (3775), 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) [2022-12-11 19:13:10,727 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:10,727 INFO L214 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] [2022-12-11 19:13:10,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-11 19:13:10,727 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:10,727 INFO L85 PathProgramCache]: Analyzing trace with hash -105926191, now seen corresponding path program 9 times [2022-12-11 19:13:10,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:10,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894744285] [2022-12-11 19:13:10,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:10,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:14,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:14,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894744285] [2022-12-11 19:13:14,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894744285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:14,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:14,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-12-11 19:13:14,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112643403] [2022-12-11 19:13:14,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:14,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-11 19:13:14,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-11 19:13:14,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1744, Unknown=0, NotChecked=0, Total=1892 [2022-12-11 19:13:14,388 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 331 [2022-12-11 19:13:14,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 470 transitions, 3853 flow. Second operand has 44 states, 44 states have (on average 189.72727272727272) internal successors, (8348), 44 states have internal predecessors, (8348), 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) [2022-12-11 19:13:14,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:14,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 331 [2022-12-11 19:13:14,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:22,309 INFO L130 PetriNetUnfolder]: 4299/16549 cut-off events. [2022-12-11 19:13:22,309 INFO L131 PetriNetUnfolder]: For 130697/131038 co-relation queries the response was YES. [2022-12-11 19:13:22,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44548 conditions, 16549 events. 4299/16549 cut-off events. For 130697/131038 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 188506 event pairs, 2495 based on Foata normal form. 74/15811 useless extension candidates. Maximal degree in co-relation 44458. Up to 4242 conditions per place. [2022-12-11 19:13:22,453 INFO L137 encePairwiseOnDemand]: 267/331 looper letters, 248 selfloop transitions, 103 changer transitions 113/645 dead transitions. [2022-12-11 19:13:22,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 629 places, 645 transitions, 5601 flow [2022-12-11 19:13:22,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-11 19:13:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2022-12-11 19:13:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 10997 transitions. [2022-12-11 19:13:22,459 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5828695606084698 [2022-12-11 19:13:22,459 INFO L175 Difference]: Start difference. First operand has 588 places, 470 transitions, 3853 flow. Second operand 57 states and 10997 transitions. [2022-12-11 19:13:22,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 629 places, 645 transitions, 5601 flow [2022-12-11 19:13:22,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 645 transitions, 5292 flow, removed 22 selfloop flow, removed 19 redundant places. [2022-12-11 19:13:22,799 INFO L231 Difference]: Finished difference. Result has 629 places, 458 transitions, 3688 flow [2022-12-11 19:13:22,800 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=3597, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=3688, PETRI_PLACES=629, PETRI_TRANSITIONS=458} [2022-12-11 19:13:22,800 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 312 predicate places. [2022-12-11 19:13:22,800 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 458 transitions, 3688 flow [2022-12-11 19:13:22,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 189.72727272727272) internal successors, (8348), 44 states have internal predecessors, (8348), 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) [2022-12-11 19:13:22,801 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:22,801 INFO L214 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] [2022-12-11 19:13:22,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-11 19:13:22,802 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:22,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:22,803 INFO L85 PathProgramCache]: Analyzing trace with hash 83063485, now seen corresponding path program 10 times [2022-12-11 19:13:22,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:22,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264366479] [2022-12-11 19:13:22,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:22,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:23,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:23,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264366479] [2022-12-11 19:13:23,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264366479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:23,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:23,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-11 19:13:23,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204943153] [2022-12-11 19:13:23,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:23,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-11 19:13:23,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:23,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-11 19:13:23,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-12-11 19:13:23,984 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-11 19:13:23,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 458 transitions, 3688 flow. Second operand has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 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) [2022-12-11 19:13:23,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:23,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-11 19:13:23,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:27,262 INFO L130 PetriNetUnfolder]: 3049/13409 cut-off events. [2022-12-11 19:13:27,262 INFO L131 PetriNetUnfolder]: For 101557/101846 co-relation queries the response was YES. [2022-12-11 19:13:27,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34501 conditions, 13409 events. 3049/13409 cut-off events. For 101557/101846 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 150658 event pairs, 1380 based on Foata normal form. 75/12800 useless extension candidates. Maximal degree in co-relation 34401. Up to 2662 conditions per place. [2022-12-11 19:13:27,380 INFO L137 encePairwiseOnDemand]: 311/331 looper letters, 173 selfloop transitions, 54 changer transitions 105/592 dead transitions. [2022-12-11 19:13:27,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 592 transitions, 5332 flow [2022-12-11 19:13:27,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-11 19:13:27,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-11 19:13:27,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 8401 transitions. [2022-12-11 19:13:27,391 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8187311178247734 [2022-12-11 19:13:27,391 INFO L175 Difference]: Start difference. First operand has 629 places, 458 transitions, 3688 flow. Second operand 31 states and 8401 transitions. [2022-12-11 19:13:27,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 592 transitions, 5332 flow [2022-12-11 19:13:27,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 592 transitions, 4966 flow, removed 76 selfloop flow, removed 52 redundant places. [2022-12-11 19:13:27,645 INFO L231 Difference]: Finished difference. Result has 594 places, 432 transitions, 2992 flow [2022-12-11 19:13:27,646 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=3404, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=2992, PETRI_PLACES=594, PETRI_TRANSITIONS=432} [2022-12-11 19:13:27,646 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 277 predicate places. [2022-12-11 19:13:27,646 INFO L495 AbstractCegarLoop]: Abstraction has has 594 places, 432 transitions, 2992 flow [2022-12-11 19:13:27,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 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) [2022-12-11 19:13:27,647 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:27,647 INFO L214 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] [2022-12-11 19:13:27,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-11 19:13:27,648 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:27,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:27,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1922368401, now seen corresponding path program 11 times [2022-12-11 19:13:27,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:27,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831920731] [2022-12-11 19:13:27,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:27,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:28,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:28,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831920731] [2022-12-11 19:13:28,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831920731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:28,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:28,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-11 19:13:28,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710619508] [2022-12-11 19:13:28,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:28,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-11 19:13:28,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:28,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-11 19:13:28,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-12-11 19:13:28,687 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-11 19:13:28,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 432 transitions, 2992 flow. Second operand has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 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) [2022-12-11 19:13:28,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:28,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-11 19:13:28,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:31,418 INFO L130 PetriNetUnfolder]: 2299/10030 cut-off events. [2022-12-11 19:13:31,418 INFO L131 PetriNetUnfolder]: For 85026/85277 co-relation queries the response was YES. [2022-12-11 19:13:31,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26836 conditions, 10030 events. 2299/10030 cut-off events. For 85026/85277 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 104916 event pairs, 1288 based on Foata normal form. 56/9578 useless extension candidates. Maximal degree in co-relation 26744. Up to 2662 conditions per place. [2022-12-11 19:13:31,502 INFO L137 encePairwiseOnDemand]: 311/331 looper letters, 139 selfloop transitions, 48 changer transitions 85/530 dead transitions. [2022-12-11 19:13:31,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 530 transitions, 4233 flow [2022-12-11 19:13:31,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-11 19:13:31,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-11 19:13:31,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 7841 transitions. [2022-12-11 19:13:31,505 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8168559224919263 [2022-12-11 19:13:31,505 INFO L175 Difference]: Start difference. First operand has 594 places, 432 transitions, 2992 flow. Second operand 29 states and 7841 transitions. [2022-12-11 19:13:31,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 530 transitions, 4233 flow [2022-12-11 19:13:31,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 530 transitions, 3880 flow, removed 106 selfloop flow, removed 35 redundant places. [2022-12-11 19:13:31,714 INFO L231 Difference]: Finished difference. Result has 575 places, 414 transitions, 2656 flow [2022-12-11 19:13:31,715 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=2793, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=2656, PETRI_PLACES=575, PETRI_TRANSITIONS=414} [2022-12-11 19:13:31,716 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 258 predicate places. [2022-12-11 19:13:31,716 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 414 transitions, 2656 flow [2022-12-11 19:13:31,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 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) [2022-12-11 19:13:31,717 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:31,724 INFO L214 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] [2022-12-11 19:13:31,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-11 19:13:31,724 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash 690432289, now seen corresponding path program 12 times [2022-12-11 19:13:31,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:31,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822723148] [2022-12-11 19:13:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:31,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:33,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:33,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822723148] [2022-12-11 19:13:33,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822723148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:33,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:33,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-11 19:13:33,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903182784] [2022-12-11 19:13:33,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:33,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-11 19:13:33,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:33,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-11 19:13:33,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-12-11 19:13:33,265 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-11 19:13:33,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 414 transitions, 2656 flow. Second operand has 26 states, 26 states have (on average 232.0) internal successors, (6032), 26 states have internal predecessors, (6032), 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) [2022-12-11 19:13:33,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:33,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-11 19:13:33,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:36,576 INFO L130 PetriNetUnfolder]: 2243/9251 cut-off events. [2022-12-11 19:13:36,576 INFO L131 PetriNetUnfolder]: For 60980/61150 co-relation queries the response was YES. [2022-12-11 19:13:36,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23929 conditions, 9251 events. 2243/9251 cut-off events. For 60980/61150 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 93014 event pairs, 1296 based on Foata normal form. 62/8870 useless extension candidates. Maximal degree in co-relation 23844. Up to 2354 conditions per place. [2022-12-11 19:13:36,656 INFO L137 encePairwiseOnDemand]: 301/331 looper letters, 208 selfloop transitions, 52 changer transitions 86/569 dead transitions. [2022-12-11 19:13:36,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 569 transitions, 4037 flow [2022-12-11 19:13:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-11 19:13:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-11 19:13:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 10123 transitions. [2022-12-11 19:13:36,660 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7112344551394646 [2022-12-11 19:13:36,661 INFO L175 Difference]: Start difference. First operand has 575 places, 414 transitions, 2656 flow. Second operand 43 states and 10123 transitions. [2022-12-11 19:13:36,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 569 transitions, 4037 flow [2022-12-11 19:13:36,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 569 transitions, 3769 flow, removed 38 selfloop flow, removed 35 redundant places. [2022-12-11 19:13:36,786 INFO L231 Difference]: Finished difference. Result has 572 places, 399 transitions, 2312 flow [2022-12-11 19:13:36,786 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=2416, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=2312, PETRI_PLACES=572, PETRI_TRANSITIONS=399} [2022-12-11 19:13:36,787 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 255 predicate places. [2022-12-11 19:13:36,787 INFO L495 AbstractCegarLoop]: Abstraction has has 572 places, 399 transitions, 2312 flow [2022-12-11 19:13:36,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 232.0) internal successors, (6032), 26 states have internal predecessors, (6032), 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) [2022-12-11 19:13:36,787 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:36,788 INFO L214 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] [2022-12-11 19:13:36,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-11 19:13:36,788 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash 571492599, now seen corresponding path program 13 times [2022-12-11 19:13:36,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:36,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634169082] [2022-12-11 19:13:36,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:38,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:38,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:38,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634169082] [2022-12-11 19:13:38,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634169082] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:38,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:38,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-11 19:13:38,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217658154] [2022-12-11 19:13:38,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:38,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-11 19:13:38,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:38,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-11 19:13:38,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-12-11 19:13:38,322 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-11 19:13:38,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 399 transitions, 2312 flow. Second operand has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:13:38,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:38,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-11 19:13:38,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:42,243 INFO L130 PetriNetUnfolder]: 2136/8904 cut-off events. [2022-12-11 19:13:42,244 INFO L131 PetriNetUnfolder]: For 45994/46126 co-relation queries the response was YES. [2022-12-11 19:13:42,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21607 conditions, 8904 events. 2136/8904 cut-off events. For 45994/46126 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 89441 event pairs, 1237 based on Foata normal form. 50/8496 useless extension candidates. Maximal degree in co-relation 21529. Up to 2623 conditions per place. [2022-12-11 19:13:42,319 INFO L137 encePairwiseOnDemand]: 300/331 looper letters, 172 selfloop transitions, 42 changer transitions 88/525 dead transitions. [2022-12-11 19:13:42,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 525 transitions, 3428 flow [2022-12-11 19:13:42,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-11 19:13:42,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-11 19:13:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 8944 transitions. [2022-12-11 19:13:42,323 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7110828430593099 [2022-12-11 19:13:42,323 INFO L175 Difference]: Start difference. First operand has 572 places, 399 transitions, 2312 flow. Second operand 38 states and 8944 transitions. [2022-12-11 19:13:42,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 525 transitions, 3428 flow [2022-12-11 19:13:42,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 525 transitions, 3190 flow, removed 37 selfloop flow, removed 40 redundant places. [2022-12-11 19:13:42,438 INFO L231 Difference]: Finished difference. Result has 536 places, 396 transitions, 2143 flow [2022-12-11 19:13:42,439 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=2096, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=2143, PETRI_PLACES=536, PETRI_TRANSITIONS=396} [2022-12-11 19:13:42,439 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 219 predicate places. [2022-12-11 19:13:42,444 INFO L495 AbstractCegarLoop]: Abstraction has has 536 places, 396 transitions, 2143 flow [2022-12-11 19:13:42,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:13:42,445 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:42,445 INFO L214 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] [2022-12-11 19:13:42,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-11 19:13:42,446 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:42,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:42,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1522445635, now seen corresponding path program 14 times [2022-12-11 19:13:42,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:42,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838684] [2022-12-11 19:13:42,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:42,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:43,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:43,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838684] [2022-12-11 19:13:43,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:43,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:43,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-11 19:13:43,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863291312] [2022-12-11 19:13:43,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:43,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-11 19:13:43,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:43,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-11 19:13:43,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-12-11 19:13:43,458 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-11 19:13:43,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 396 transitions, 2143 flow. Second operand has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 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) [2022-12-11 19:13:43,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:43,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-11 19:13:43,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:45,188 INFO L130 PetriNetUnfolder]: 1626/7544 cut-off events. [2022-12-11 19:13:45,188 INFO L131 PetriNetUnfolder]: For 32863/32996 co-relation queries the response was YES. [2022-12-11 19:13:45,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17503 conditions, 7544 events. 1626/7544 cut-off events. For 32863/32996 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 74866 event pairs, 366 based on Foata normal form. 52/7268 useless extension candidates. Maximal degree in co-relation 17427. Up to 1564 conditions per place. [2022-12-11 19:13:45,257 INFO L137 encePairwiseOnDemand]: 311/331 looper letters, 120 selfloop transitions, 30 changer transitions 94/502 dead transitions. [2022-12-11 19:13:45,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 502 transitions, 3321 flow [2022-12-11 19:13:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-11 19:13:45,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-11 19:13:45,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 7042 transitions. [2022-12-11 19:13:45,260 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8182663258191959 [2022-12-11 19:13:45,260 INFO L175 Difference]: Start difference. First operand has 536 places, 396 transitions, 2143 flow. Second operand 26 states and 7042 transitions. [2022-12-11 19:13:45,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 502 transitions, 3321 flow [2022-12-11 19:13:45,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 502 transitions, 3105 flow, removed 77 selfloop flow, removed 31 redundant places. [2022-12-11 19:13:45,349 INFO L231 Difference]: Finished difference. Result has 522 places, 376 transitions, 1740 flow [2022-12-11 19:13:45,349 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=2019, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1740, PETRI_PLACES=522, PETRI_TRANSITIONS=376} [2022-12-11 19:13:45,349 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 205 predicate places. [2022-12-11 19:13:45,350 INFO L495 AbstractCegarLoop]: Abstraction has has 522 places, 376 transitions, 1740 flow [2022-12-11 19:13:45,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 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) [2022-12-11 19:13:45,350 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:45,350 INFO L214 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] [2022-12-11 19:13:45,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-11 19:13:45,350 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:45,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1383547871, now seen corresponding path program 1 times [2022-12-11 19:13:45,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:45,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910258186] [2022-12-11 19:13:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:45,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:45,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:45,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910258186] [2022-12-11 19:13:45,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910258186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:45,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:45,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:13:45,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539835903] [2022-12-11 19:13:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:45,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:13:45,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:45,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:13:45,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:13:45,944 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-11 19:13:45,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 376 transitions, 1740 flow. Second operand has 16 states, 16 states have (on average 267.3125) internal successors, (4277), 16 states have internal predecessors, (4277), 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) [2022-12-11 19:13:45,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:45,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-11 19:13:45,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:47,250 INFO L130 PetriNetUnfolder]: 1210/5782 cut-off events. [2022-12-11 19:13:47,250 INFO L131 PetriNetUnfolder]: For 29769/29849 co-relation queries the response was YES. [2022-12-11 19:13:47,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14240 conditions, 5782 events. 1210/5782 cut-off events. For 29769/29849 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 54502 event pairs, 178 based on Foata normal form. 30/5578 useless extension candidates. Maximal degree in co-relation 14171. Up to 672 conditions per place. [2022-12-11 19:13:47,300 INFO L137 encePairwiseOnDemand]: 312/331 looper letters, 134 selfloop transitions, 38 changer transitions 62/492 dead transitions. [2022-12-11 19:13:47,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 492 transitions, 3092 flow [2022-12-11 19:13:47,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 19:13:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 19:13:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5442 transitions. [2022-12-11 19:13:47,302 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8220543806646525 [2022-12-11 19:13:47,302 INFO L175 Difference]: Start difference. First operand has 522 places, 376 transitions, 1740 flow. Second operand 20 states and 5442 transitions. [2022-12-11 19:13:47,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 492 transitions, 3092 flow [2022-12-11 19:13:47,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 492 transitions, 2766 flow, removed 45 selfloop flow, removed 34 redundant places. [2022-12-11 19:13:47,365 INFO L231 Difference]: Finished difference. Result has 489 places, 379 transitions, 1740 flow [2022-12-11 19:13:47,366 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1740, PETRI_PLACES=489, PETRI_TRANSITIONS=379} [2022-12-11 19:13:47,366 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 172 predicate places. [2022-12-11 19:13:47,366 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 379 transitions, 1740 flow [2022-12-11 19:13:47,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 267.3125) internal successors, (4277), 16 states have internal predecessors, (4277), 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) [2022-12-11 19:13:47,366 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:47,367 INFO L214 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] [2022-12-11 19:13:47,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-11 19:13:47,367 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:47,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:47,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1394941003, now seen corresponding path program 2 times [2022-12-11 19:13:47,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:47,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477269299] [2022-12-11 19:13:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:47,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:48,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:48,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:48,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477269299] [2022-12-11 19:13:48,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477269299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:48,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:48,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-11 19:13:48,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538828442] [2022-12-11 19:13:48,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:48,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-11 19:13:48,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:48,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-11 19:13:48,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2022-12-11 19:13:48,824 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-11 19:13:48,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 379 transitions, 1740 flow. Second operand has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:13:48,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:48,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-11 19:13:48,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:51,591 INFO L130 PetriNetUnfolder]: 1374/5876 cut-off events. [2022-12-11 19:13:51,591 INFO L131 PetriNetUnfolder]: For 16584/16643 co-relation queries the response was YES. [2022-12-11 19:13:51,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13343 conditions, 5876 events. 1374/5876 cut-off events. For 16584/16643 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 53407 event pairs, 879 based on Foata normal form. 20/5615 useless extension candidates. Maximal degree in co-relation 13288. Up to 1780 conditions per place. [2022-12-11 19:13:51,625 INFO L137 encePairwiseOnDemand]: 301/331 looper letters, 174 selfloop transitions, 39 changer transitions 57/493 dead transitions. [2022-12-11 19:13:51,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 493 transitions, 2733 flow [2022-12-11 19:13:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-11 19:13:51,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-11 19:13:51,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 7326 transitions. [2022-12-11 19:13:51,629 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7139655004385538 [2022-12-11 19:13:51,630 INFO L175 Difference]: Start difference. First operand has 489 places, 379 transitions, 1740 flow. Second operand 31 states and 7326 transitions. [2022-12-11 19:13:51,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 493 transitions, 2733 flow [2022-12-11 19:13:51,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 493 transitions, 2641 flow, removed 19 selfloop flow, removed 13 redundant places. [2022-12-11 19:13:51,680 INFO L231 Difference]: Finished difference. Result has 511 places, 383 transitions, 1789 flow [2022-12-11 19:13:51,680 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1673, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1789, PETRI_PLACES=511, PETRI_TRANSITIONS=383} [2022-12-11 19:13:51,681 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 194 predicate places. [2022-12-11 19:13:51,681 INFO L495 AbstractCegarLoop]: Abstraction has has 511 places, 383 transitions, 1789 flow [2022-12-11 19:13:51,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:13:51,682 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:51,682 INFO L214 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] [2022-12-11 19:13:51,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-11 19:13:51,682 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:51,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:51,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1013821107, now seen corresponding path program 3 times [2022-12-11 19:13:51,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:51,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80679122] [2022-12-11 19:13:51,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:51,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:52,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:52,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:52,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80679122] [2022-12-11 19:13:52,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80679122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:52,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:52,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-11 19:13:52,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297919809] [2022-12-11 19:13:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:52,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-11 19:13:52,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:52,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-11 19:13:52,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2022-12-11 19:13:52,991 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-11 19:13:52,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 383 transitions, 1789 flow. Second operand has 26 states, 26 states have (on average 232.0) internal successors, (6032), 26 states have internal predecessors, (6032), 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) [2022-12-11 19:13:52,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:52,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-11 19:13:52,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:57,032 INFO L130 PetriNetUnfolder]: 1318/5719 cut-off events. [2022-12-11 19:13:57,032 INFO L131 PetriNetUnfolder]: For 16214/16265 co-relation queries the response was YES. [2022-12-11 19:13:57,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12863 conditions, 5719 events. 1318/5719 cut-off events. For 16214/16265 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 51402 event pairs, 861 based on Foata normal form. 24/5450 useless extension candidates. Maximal degree in co-relation 12802. Up to 1678 conditions per place. [2022-12-11 19:13:57,067 INFO L137 encePairwiseOnDemand]: 300/331 looper letters, 157 selfloop transitions, 37 changer transitions 69/486 dead transitions. [2022-12-11 19:13:57,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 486 transitions, 2746 flow [2022-12-11 19:13:57,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-11 19:13:57,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-12-11 19:13:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 9155 transitions. [2022-12-11 19:13:57,072 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7091951351770083 [2022-12-11 19:13:57,072 INFO L175 Difference]: Start difference. First operand has 511 places, 383 transitions, 1789 flow. Second operand 39 states and 9155 transitions. [2022-12-11 19:13:57,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 486 transitions, 2746 flow [2022-12-11 19:13:57,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 486 transitions, 2637 flow, removed 16 selfloop flow, removed 23 redundant places. [2022-12-11 19:13:57,120 INFO L231 Difference]: Finished difference. Result has 533 places, 372 transitions, 1640 flow [2022-12-11 19:13:57,121 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1702, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=1640, PETRI_PLACES=533, PETRI_TRANSITIONS=372} [2022-12-11 19:13:57,121 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 216 predicate places. [2022-12-11 19:13:57,121 INFO L495 AbstractCegarLoop]: Abstraction has has 533 places, 372 transitions, 1640 flow [2022-12-11 19:13:57,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 232.0) internal successors, (6032), 26 states have internal predecessors, (6032), 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) [2022-12-11 19:13:57,122 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:57,122 INFO L214 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] [2022-12-11 19:13:57,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-11 19:13:57,122 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:13:57,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1215961883, now seen corresponding path program 4 times [2022-12-11 19:13:57,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:57,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850518656] [2022-12-11 19:13:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:58,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:58,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850518656] [2022-12-11 19:13:58,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850518656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:13:58,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:13:58,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-11 19:13:58,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107586804] [2022-12-11 19:13:58,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:13:58,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-11 19:13:58,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:58,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-11 19:13:58,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2022-12-11 19:13:58,582 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-11 19:13:58,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 372 transitions, 1640 flow. Second operand has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:13:58,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:58,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-11 19:13:58,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:14:01,008 INFO L130 PetriNetUnfolder]: 1239/5357 cut-off events. [2022-12-11 19:14:01,008 INFO L131 PetriNetUnfolder]: For 15728/15763 co-relation queries the response was YES. [2022-12-11 19:14:01,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12355 conditions, 5357 events. 1239/5357 cut-off events. For 15728/15763 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 47769 event pairs, 851 based on Foata normal form. 12/5112 useless extension candidates. Maximal degree in co-relation 12287. Up to 1743 conditions per place. [2022-12-11 19:14:01,051 INFO L137 encePairwiseOnDemand]: 301/331 looper letters, 147 selfloop transitions, 33 changer transitions 61/464 dead transitions. [2022-12-11 19:14:01,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 464 transitions, 2488 flow [2022-12-11 19:14:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-11 19:14:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-11 19:14:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 6847 transitions. [2022-12-11 19:14:01,054 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7133034691113658 [2022-12-11 19:14:01,054 INFO L175 Difference]: Start difference. First operand has 533 places, 372 transitions, 1640 flow. Second operand 29 states and 6847 transitions. [2022-12-11 19:14:01,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 464 transitions, 2488 flow [2022-12-11 19:14:01,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 464 transitions, 2283 flow, removed 26 selfloop flow, removed 44 redundant places. [2022-12-11 19:14:01,102 INFO L231 Difference]: Finished difference. Result has 502 places, 373 transitions, 1595 flow [2022-12-11 19:14:01,102 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1498, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=1595, PETRI_PLACES=502, PETRI_TRANSITIONS=373} [2022-12-11 19:14:01,107 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 185 predicate places. [2022-12-11 19:14:01,107 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 373 transitions, 1595 flow [2022-12-11 19:14:01,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 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) [2022-12-11 19:14:01,108 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:14:01,108 INFO L214 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] [2022-12-11 19:14:01,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-11 19:14:01,108 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:14:01,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:14:01,108 INFO L85 PathProgramCache]: Analyzing trace with hash 630547525, now seen corresponding path program 5 times [2022-12-11 19:14:01,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:14:01,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007541924] [2022-12-11 19:14:01,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:14:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:14:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:14:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:14:01,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:14:01,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007541924] [2022-12-11 19:14:01,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007541924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:14:01,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:14:01,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-11 19:14:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963131767] [2022-12-11 19:14:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:14:01,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-11 19:14:01,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:14:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-11 19:14:01,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-12-11 19:14:01,726 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-11 19:14:01,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 373 transitions, 1595 flow. Second operand has 16 states, 16 states have (on average 267.3125) internal successors, (4277), 16 states have internal predecessors, (4277), 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) [2022-12-11 19:14:01,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:14:01,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-11 19:14:01,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:14:02,904 INFO L130 PetriNetUnfolder]: 998/4731 cut-off events. [2022-12-11 19:14:02,904 INFO L131 PetriNetUnfolder]: For 15006/15040 co-relation queries the response was YES. [2022-12-11 19:14:02,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10651 conditions, 4731 events. 998/4731 cut-off events. For 15006/15040 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 42170 event pairs, 128 based on Foata normal form. 12/4520 useless extension candidates. Maximal degree in co-relation 10596. Up to 699 conditions per place. [2022-12-11 19:14:02,938 INFO L137 encePairwiseOnDemand]: 312/331 looper letters, 110 selfloop transitions, 25 changer transitions 81/469 dead transitions. [2022-12-11 19:14:02,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 469 transitions, 2510 flow [2022-12-11 19:14:02,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-11 19:14:02,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-11 19:14:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 5177 transitions. [2022-12-11 19:14:02,940 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8231833359834632 [2022-12-11 19:14:02,940 INFO L175 Difference]: Start difference. First operand has 502 places, 373 transitions, 1595 flow. Second operand 19 states and 5177 transitions. [2022-12-11 19:14:02,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 469 transitions, 2510 flow [2022-12-11 19:14:02,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 469 transitions, 2414 flow, removed 17 selfloop flow, removed 22 redundant places. [2022-12-11 19:14:02,973 INFO L231 Difference]: Finished difference. Result has 496 places, 352 transitions, 1362 flow [2022-12-11 19:14:02,973 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=1521, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1362, PETRI_PLACES=496, PETRI_TRANSITIONS=352} [2022-12-11 19:14:02,974 INFO L295 CegarLoopForPetriNet]: 317 programPoint places, 179 predicate places. [2022-12-11 19:14:02,974 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 352 transitions, 1362 flow [2022-12-11 19:14:02,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 267.3125) internal successors, (4277), 16 states have internal predecessors, (4277), 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) [2022-12-11 19:14:02,974 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:14:02,975 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:14:02,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-11 19:14:02,975 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:14:02,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:14:02,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1025613847, now seen corresponding path program 1 times [2022-12-11 19:14:02,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:14:02,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728682425] [2022-12-11 19:14:02,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:14:02,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:14:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:14:04,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:14:04,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:14:04,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728682425] [2022-12-11 19:14:04,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728682425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:14:04,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:14:04,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-11 19:14:04,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037713869] [2022-12-11 19:14:04,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:14:04,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 19:14:04,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:14:04,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 19:14:04,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-12-11 19:14:04,217 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 331 [2022-12-11 19:14:04,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 352 transitions, 1362 flow. Second operand has 19 states, 19 states have (on average 246.78947368421052) internal successors, (4689), 19 states have internal predecessors, (4689), 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) [2022-12-11 19:14:04,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:14:04,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 331 [2022-12-11 19:14:04,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand