/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:43:07,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:43:07,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:43:08,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:43:08,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:43:08,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:43:08,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:43:08,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:43:08,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:43:08,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:43:08,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:43:08,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:43:08,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:43:08,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:43:08,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:43:08,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:43:08,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:43:08,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:43:08,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:43:08,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:43:08,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:43:08,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:43:08,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:43:08,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:43:08,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:43:08,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:43:08,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:43:08,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:43:08,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:43:08,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:43:08,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:43:08,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:43:08,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:43:08,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:43:08,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:43:08,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:43:08,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:43:08,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:43:08,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:43:08,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:43:08,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:43:08,082 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:43:08,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:43:08,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:43:08,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:43:08,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:43:08,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:43:08,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:43:08,115 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:43:08,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:43:08,115 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:43:08,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:43:08,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:43:08,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:43:08,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:43:08,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:43:08,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:43:08,116 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:43:08,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:43:08,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:43:08,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:43:08,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:43:08,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:43:08,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:43:08,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:43:08,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:43:08,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:43:08,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:43:08,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:43:08,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:43:08,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:43:08,118 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:43:08,118 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:43:08,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:43:08,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:43:08,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:43:08,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:43:08,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:43:08,416 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:43:08,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-05 18:43:09,628 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:43:10,053 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:43:10,054 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-05 18:43:10,109 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/307f0e457/500d7c966a2c4398b35e470f74f317e4/FLAG97c09da0e [2022-12-05 18:43:10,121 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/307f0e457/500d7c966a2c4398b35e470f74f317e4 [2022-12-05 18:43:10,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:43:10,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:43:10,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:43:10,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:43:10,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:43:10,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:43:10" (1/1) ... [2022-12-05 18:43:10,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793293c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:10, skipping insertion in model container [2022-12-05 18:43:10,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:43:10" (1/1) ... [2022-12-05 18:43:10,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:43:10,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:43:10,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-12-05 18:43:11,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:11,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:11,633 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:43:11,636 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:11,638 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:11,642 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:11,773 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:43:11,781 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:43:11,901 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:43:12,145 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:43:12,155 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:43:12,202 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:43:12,205 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:43:12,586 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:43:12,592 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:43:12,598 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:43:12,723 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:43:12,724 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:43:12,726 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:43:12,726 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:43:12,841 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:43:12,863 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:43:12,956 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:43:12,959 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:43:13,051 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:43:13,164 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:43:13,165 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:43:13,165 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:43:13,803 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:43:13,804 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:13,810 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:13,815 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:13,820 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:14,416 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 18:43:14,419 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 18:43:14,423 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 18:43:14,435 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 18:43:14,436 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 18:43:14,439 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 18:43:14,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:43:14,464 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:43:14,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-12-05 18:43:14,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:43:14,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:43:14,523 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:43:14,524 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:14,524 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:14,525 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:43:14,530 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:43:14,534 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:43:14,537 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:43:14,556 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:43:14,557 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:43:14,559 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:43:14,560 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:43:14,567 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:43:14,567 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:43:14,567 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:43:14,571 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:43:14,571 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:43:14,571 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:43:14,571 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:43:14,580 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:43:14,583 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:43:14,587 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:43:14,588 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:43:14,594 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:43:14,597 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:43:14,597 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:43:14,598 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:43:14,668 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:43:14,668 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:14,673 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:14,677 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:14,680 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:43:14,714 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 18:43:14,743 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 18:43:14,744 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 18:43:14,746 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 18:43:14,746 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 18:43:14,746 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 18:43:14,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:43:15,156 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:43:15,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15 WrapperNode [2022-12-05 18:43:15,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:43:15,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:43:15,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:43:15,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:43:15,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,281 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-05 18:43:15,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:43:15,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:43:15,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:43:15,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:43:15,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,343 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:43:15,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:43:15,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:43:15,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:43:15,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (1/1) ... [2022-12-05 18:43:15,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:43:15,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:43:15,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:43:15,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:43:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:43:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 18:43:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-05 18:43:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-05 18:43:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:43:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:43:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:43:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 18:43:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:43:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:43:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-05 18:43:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-05 18:43:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:43:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:43:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:43:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 18:43:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:43:15,461 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:43:15,840 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:43:15,842 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:43:16,287 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:43:16,320 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:43:16,320 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-05 18:43:16,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:43:16 BoogieIcfgContainer [2022-12-05 18:43:16,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:43:16,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:43:16,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:43:16,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:43:16,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:43:10" (1/3) ... [2022-12-05 18:43:16,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efc6b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:43:16, skipping insertion in model container [2022-12-05 18:43:16,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:15" (2/3) ... [2022-12-05 18:43:16,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efc6b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:43:16, skipping insertion in model container [2022-12-05 18:43:16,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:43:16" (3/3) ... [2022-12-05 18:43:16,330 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-05 18:43:16,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:43:16,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 18:43:16,345 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:43:16,451 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 18:43:16,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 332 transitions, 680 flow [2022-12-05 18:43:16,625 INFO L130 PetriNetUnfolder]: 11/330 cut-off events. [2022-12-05 18:43:16,625 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:43:16,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 330 events. 11/330 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 307 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 275. Up to 4 conditions per place. [2022-12-05 18:43:16,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 332 transitions, 680 flow [2022-12-05 18:43:16,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 322 transitions, 653 flow [2022-12-05 18:43:16,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:43:16,673 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;@3e29a2a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:43:16,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 18:43:16,734 INFO L130 PetriNetUnfolder]: 7/281 cut-off events. [2022-12-05 18:43:16,734 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 18:43:16,734 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:16,735 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:16,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:16,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:16,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1806346713, now seen corresponding path program 1 times [2022-12-05 18:43:16,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:16,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707985120] [2022-12-05 18:43:16,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:16,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:17,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:17,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707985120] [2022-12-05 18:43:17,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707985120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:17,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:17,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:43:17,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960178558] [2022-12-05 18:43:17,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:17,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:43:17,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:17,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:43:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:43:17,902 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 332 [2022-12-05 18:43:17,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 322 transitions, 653 flow. Second operand has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:17,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:17,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 332 [2022-12-05 18:43:17,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:18,516 INFO L130 PetriNetUnfolder]: 340/1932 cut-off events. [2022-12-05 18:43:18,516 INFO L131 PetriNetUnfolder]: For 70/72 co-relation queries the response was YES. [2022-12-05 18:43:18,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2594 conditions, 1932 events. 340/1932 cut-off events. For 70/72 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 13873 event pairs, 127 based on Foata normal form. 8/1812 useless extension candidates. Maximal degree in co-relation 2220. Up to 320 conditions per place. [2022-12-05 18:43:18,530 INFO L137 encePairwiseOnDemand]: 319/332 looper letters, 62 selfloop transitions, 9 changer transitions 41/380 dead transitions. [2022-12-05 18:43:18,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 380 transitions, 1030 flow [2022-12-05 18:43:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:43:18,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:43:18,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3452 transitions. [2022-12-05 18:43:18,549 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8664658634538153 [2022-12-05 18:43:18,550 INFO L175 Difference]: Start difference. First operand has 318 places, 322 transitions, 653 flow. Second operand 12 states and 3452 transitions. [2022-12-05 18:43:18,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 380 transitions, 1030 flow [2022-12-05 18:43:18,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 380 transitions, 1009 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:43:18,564 INFO L231 Difference]: Finished difference. Result has 334 places, 325 transitions, 739 flow [2022-12-05 18:43:18,565 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=739, PETRI_PLACES=334, PETRI_TRANSITIONS=325} [2022-12-05 18:43:18,568 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 16 predicate places. [2022-12-05 18:43:18,568 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 325 transitions, 739 flow [2022-12-05 18:43:18,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:18,569 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:18,570 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:18,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:43:18,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:18,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash -413153499, now seen corresponding path program 1 times [2022-12-05 18:43:18,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:18,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84554876] [2022-12-05 18:43:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:18,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:19,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:19,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84554876] [2022-12-05 18:43:19,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84554876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:19,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:19,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-05 18:43:19,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139345379] [2022-12-05 18:43:19,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:19,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:43:19,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:19,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:43:19,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-05 18:43:19,601 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 332 [2022-12-05 18:43:19,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 325 transitions, 739 flow. Second operand has 12 states, 12 states have (on average 256.1666666666667) internal successors, (3074), 12 states have internal predecessors, (3074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:19,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:19,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 332 [2022-12-05 18:43:19,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:20,292 INFO L130 PetriNetUnfolder]: 290/1844 cut-off events. [2022-12-05 18:43:20,292 INFO L131 PetriNetUnfolder]: For 1840/2042 co-relation queries the response was YES. [2022-12-05 18:43:20,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3227 conditions, 1844 events. 290/1844 cut-off events. For 1840/2042 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 12901 event pairs, 13 based on Foata normal form. 7/1742 useless extension candidates. Maximal degree in co-relation 2855. Up to 230 conditions per place. [2022-12-05 18:43:20,303 INFO L137 encePairwiseOnDemand]: 317/332 looper letters, 90 selfloop transitions, 15 changer transitions 29/377 dead transitions. [2022-12-05 18:43:20,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 377 transitions, 1320 flow [2022-12-05 18:43:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:43:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:43:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4648 transitions. [2022-12-05 18:43:20,311 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2022-12-05 18:43:20,311 INFO L175 Difference]: Start difference. First operand has 334 places, 325 transitions, 739 flow. Second operand 18 states and 4648 transitions. [2022-12-05 18:43:20,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 377 transitions, 1320 flow [2022-12-05 18:43:20,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 377 transitions, 1300 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-12-05 18:43:20,324 INFO L231 Difference]: Finished difference. Result has 351 places, 326 transitions, 813 flow [2022-12-05 18:43:20,325 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=813, PETRI_PLACES=351, PETRI_TRANSITIONS=326} [2022-12-05 18:43:20,327 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 33 predicate places. [2022-12-05 18:43:20,328 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 326 transitions, 813 flow [2022-12-05 18:43:20,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 256.1666666666667) internal successors, (3074), 12 states have internal predecessors, (3074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:20,334 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:20,334 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:20,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:43:20,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:20,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:20,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1911788694, now seen corresponding path program 1 times [2022-12-05 18:43:20,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:20,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068211298] [2022-12-05 18:43:20,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:20,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:21,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:21,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068211298] [2022-12-05 18:43:21,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068211298] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:21,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:21,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:43:21,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001862667] [2022-12-05 18:43:21,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:21,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:43:21,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:43:21,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:43:21,422 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:43:21,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 326 transitions, 813 flow. Second operand has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:21,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:21,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:43:21,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:22,854 INFO L130 PetriNetUnfolder]: 618/2751 cut-off events. [2022-12-05 18:43:22,855 INFO L131 PetriNetUnfolder]: For 3401/3409 co-relation queries the response was YES. [2022-12-05 18:43:22,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5227 conditions, 2751 events. 618/2751 cut-off events. For 3401/3409 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 20932 event pairs, 48 based on Foata normal form. 6/2638 useless extension candidates. Maximal degree in co-relation 4893. Up to 488 conditions per place. [2022-12-05 18:43:22,867 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 100 selfloop transitions, 22 changer transitions 66/445 dead transitions. [2022-12-05 18:43:22,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 445 transitions, 1711 flow [2022-12-05 18:43:22,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-05 18:43:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-05 18:43:22,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 7393 transitions. [2022-12-05 18:43:22,879 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8247434181169121 [2022-12-05 18:43:22,879 INFO L175 Difference]: Start difference. First operand has 351 places, 326 transitions, 813 flow. Second operand 27 states and 7393 transitions. [2022-12-05 18:43:22,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 445 transitions, 1711 flow [2022-12-05 18:43:22,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 445 transitions, 1581 flow, removed 36 selfloop flow, removed 17 redundant places. [2022-12-05 18:43:22,893 INFO L231 Difference]: Finished difference. Result has 375 places, 335 transitions, 928 flow [2022-12-05 18:43:22,893 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=928, PETRI_PLACES=375, PETRI_TRANSITIONS=335} [2022-12-05 18:43:22,894 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 57 predicate places. [2022-12-05 18:43:22,895 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 335 transitions, 928 flow [2022-12-05 18:43:22,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:22,896 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:22,897 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:22,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:43:22,897 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash -356562770, now seen corresponding path program 2 times [2022-12-05 18:43:22,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:22,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63863666] [2022-12-05 18:43:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:22,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:23,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:23,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63863666] [2022-12-05 18:43:23,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63863666] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:23,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:23,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:43:23,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969841839] [2022-12-05 18:43:23,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:23,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:43:23,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:23,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:43:23,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:43:23,883 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:43:23,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 335 transitions, 928 flow. Second operand has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:23,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:23,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:43:23,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:25,770 INFO L130 PetriNetUnfolder]: 1152/5149 cut-off events. [2022-12-05 18:43:25,770 INFO L131 PetriNetUnfolder]: For 11510/11550 co-relation queries the response was YES. [2022-12-05 18:43:25,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11099 conditions, 5149 events. 1152/5149 cut-off events. For 11510/11550 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 49289 event pairs, 115 based on Foata normal form. 12/4898 useless extension candidates. Maximal degree in co-relation 10448. Up to 523 conditions per place. [2022-12-05 18:43:25,808 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 164 selfloop transitions, 42 changer transitions 71/534 dead transitions. [2022-12-05 18:43:25,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 534 transitions, 2598 flow [2022-12-05 18:43:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-05 18:43:25,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-05 18:43:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 9876 transitions. [2022-12-05 18:43:25,824 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8263052208835341 [2022-12-05 18:43:25,824 INFO L175 Difference]: Start difference. First operand has 375 places, 335 transitions, 928 flow. Second operand 36 states and 9876 transitions. [2022-12-05 18:43:25,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 534 transitions, 2598 flow [2022-12-05 18:43:25,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 534 transitions, 2407 flow, removed 77 selfloop flow, removed 15 redundant places. [2022-12-05 18:43:25,871 INFO L231 Difference]: Finished difference. Result has 403 places, 361 transitions, 1303 flow [2022-12-05 18:43:25,872 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=881, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1303, PETRI_PLACES=403, PETRI_TRANSITIONS=361} [2022-12-05 18:43:25,873 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 85 predicate places. [2022-12-05 18:43:25,874 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 361 transitions, 1303 flow [2022-12-05 18:43:25,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:25,876 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:25,876 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:25,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:43:25,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1723113956, now seen corresponding path program 3 times [2022-12-05 18:43:25,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:25,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643206732] [2022-12-05 18:43:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:25,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:26,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:26,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643206732] [2022-12-05 18:43:26,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643206732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:26,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:26,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:43:26,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292357678] [2022-12-05 18:43:26,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:26,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:43:26,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:26,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:43:26,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:43:26,726 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:43:26,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 361 transitions, 1303 flow. Second operand has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:26,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:26,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:43:26,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:28,842 INFO L130 PetriNetUnfolder]: 1456/6626 cut-off events. [2022-12-05 18:43:28,842 INFO L131 PetriNetUnfolder]: For 26367/26453 co-relation queries the response was YES. [2022-12-05 18:43:28,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15308 conditions, 6626 events. 1456/6626 cut-off events. For 26367/26453 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 68036 event pairs, 144 based on Foata normal form. 19/6280 useless extension candidates. Maximal degree in co-relation 14310. Up to 1079 conditions per place. [2022-12-05 18:43:28,908 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 144 selfloop transitions, 56 changer transitions 42/499 dead transitions. [2022-12-05 18:43:28,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 499 transitions, 2787 flow [2022-12-05 18:43:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-05 18:43:28,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-05 18:43:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 7145 transitions. [2022-12-05 18:43:28,918 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8277340129749768 [2022-12-05 18:43:28,918 INFO L175 Difference]: Start difference. First operand has 403 places, 361 transitions, 1303 flow. Second operand 26 states and 7145 transitions. [2022-12-05 18:43:28,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 499 transitions, 2787 flow [2022-12-05 18:43:29,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 499 transitions, 2614 flow, removed 72 selfloop flow, removed 12 redundant places. [2022-12-05 18:43:29,035 INFO L231 Difference]: Finished difference. Result has 419 places, 379 transitions, 1654 flow [2022-12-05 18:43:29,036 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1654, PETRI_PLACES=419, PETRI_TRANSITIONS=379} [2022-12-05 18:43:29,037 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 101 predicate places. [2022-12-05 18:43:29,038 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 379 transitions, 1654 flow [2022-12-05 18:43:29,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:29,039 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:29,039 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:29,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:43:29,040 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:29,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:29,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1997963344, now seen corresponding path program 4 times [2022-12-05 18:43:29,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:29,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607793533] [2022-12-05 18:43:29,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:29,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:29,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:29,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:29,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607793533] [2022-12-05 18:43:29,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607793533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:29,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:29,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:43:29,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993651887] [2022-12-05 18:43:29,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:29,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:43:29,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:29,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:43:29,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:43:29,707 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:43:29,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 379 transitions, 1654 flow. Second operand has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:29,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:29,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:43:29,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:31,856 INFO L130 PetriNetUnfolder]: 1448/6664 cut-off events. [2022-12-05 18:43:31,856 INFO L131 PetriNetUnfolder]: For 38496/38594 co-relation queries the response was YES. [2022-12-05 18:43:31,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16103 conditions, 6664 events. 1448/6664 cut-off events. For 38496/38594 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 68726 event pairs, 143 based on Foata normal form. 26/6306 useless extension candidates. Maximal degree in co-relation 15637. Up to 531 conditions per place. [2022-12-05 18:43:31,907 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 199 selfloop transitions, 53 changer transitions 55/564 dead transitions. [2022-12-05 18:43:31,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 564 transitions, 3452 flow [2022-12-05 18:43:31,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-05 18:43:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-05 18:43:31,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 10158 transitions. [2022-12-05 18:43:31,915 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8269293389775317 [2022-12-05 18:43:31,916 INFO L175 Difference]: Start difference. First operand has 419 places, 379 transitions, 1654 flow. Second operand 37 states and 10158 transitions. [2022-12-05 18:43:31,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 564 transitions, 3452 flow [2022-12-05 18:43:32,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 564 transitions, 3291 flow, removed 62 selfloop flow, removed 11 redundant places. [2022-12-05 18:43:32,022 INFO L231 Difference]: Finished difference. Result has 451 places, 386 transitions, 1851 flow [2022-12-05 18:43:32,023 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1570, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1851, PETRI_PLACES=451, PETRI_TRANSITIONS=386} [2022-12-05 18:43:32,023 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 133 predicate places. [2022-12-05 18:43:32,023 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 386 transitions, 1851 flow [2022-12-05 18:43:32,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:32,025 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:32,025 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:32,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:43:32,025 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:32,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:32,026 INFO L85 PathProgramCache]: Analyzing trace with hash 345534016, now seen corresponding path program 5 times [2022-12-05 18:43:32,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:32,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756428429] [2022-12-05 18:43:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:32,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:32,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:32,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756428429] [2022-12-05 18:43:32,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756428429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:32,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:32,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:43:32,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879069631] [2022-12-05 18:43:32,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:32,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:43:32,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:32,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:43:32,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:43:32,722 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:43:32,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 386 transitions, 1851 flow. Second operand has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:32,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:32,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:43:32,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:35,038 INFO L130 PetriNetUnfolder]: 1702/7931 cut-off events. [2022-12-05 18:43:35,039 INFO L131 PetriNetUnfolder]: For 62586/62716 co-relation queries the response was YES. [2022-12-05 18:43:35,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20083 conditions, 7931 events. 1702/7931 cut-off events. For 62586/62716 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 85457 event pairs, 244 based on Foata normal form. 36/7497 useless extension candidates. Maximal degree in co-relation 19643. Up to 1253 conditions per place. [2022-12-05 18:43:35,086 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 154 selfloop transitions, 69 changer transitions 70/550 dead transitions. [2022-12-05 18:43:35,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 550 transitions, 3670 flow [2022-12-05 18:43:35,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-05 18:43:35,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-05 18:43:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 9574 transitions. [2022-12-05 18:43:35,093 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8239242685025817 [2022-12-05 18:43:35,094 INFO L175 Difference]: Start difference. First operand has 451 places, 386 transitions, 1851 flow. Second operand 35 states and 9574 transitions. [2022-12-05 18:43:35,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 550 transitions, 3670 flow [2022-12-05 18:43:35,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 550 transitions, 3381 flow, removed 97 selfloop flow, removed 15 redundant places. [2022-12-05 18:43:35,231 INFO L231 Difference]: Finished difference. Result has 477 places, 404 transitions, 2211 flow [2022-12-05 18:43:35,232 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1712, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=2211, PETRI_PLACES=477, PETRI_TRANSITIONS=404} [2022-12-05 18:43:35,233 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 159 predicate places. [2022-12-05 18:43:35,233 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 404 transitions, 2211 flow [2022-12-05 18:43:35,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:35,234 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:35,234 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:35,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:43:35,234 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:35,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1493092438, now seen corresponding path program 6 times [2022-12-05 18:43:35,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:35,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150471303] [2022-12-05 18:43:35,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:35,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:36,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:36,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:36,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150471303] [2022-12-05 18:43:36,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150471303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:36,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:36,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-12-05 18:43:36,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378113867] [2022-12-05 18:43:36,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:36,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-05 18:43:36,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:36,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-05 18:43:36,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-12-05 18:43:36,968 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 332 [2022-12-05 18:43:36,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 404 transitions, 2211 flow. Second operand has 24 states, 24 states have (on average 235.08333333333334) internal successors, (5642), 24 states have internal predecessors, (5642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:36,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:36,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 332 [2022-12-05 18:43:36,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:43,513 INFO L130 PetriNetUnfolder]: 3742/15076 cut-off events. [2022-12-05 18:43:43,513 INFO L131 PetriNetUnfolder]: For 152915/153247 co-relation queries the response was YES. [2022-12-05 18:43:43,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42938 conditions, 15076 events. 3742/15076 cut-off events. For 152915/153247 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 179187 event pairs, 1336 based on Foata normal form. 45/14171 useless extension candidates. Maximal degree in co-relation 42430. Up to 2578 conditions per place. [2022-12-05 18:43:43,715 INFO L137 encePairwiseOnDemand]: 302/332 looper letters, 274 selfloop transitions, 145 changer transitions 123/768 dead transitions. [2022-12-05 18:43:43,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 768 transitions, 7358 flow [2022-12-05 18:43:43,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-05 18:43:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-12-05 18:43:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 12875 transitions. [2022-12-05 18:43:43,747 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7181503792949576 [2022-12-05 18:43:43,747 INFO L175 Difference]: Start difference. First operand has 477 places, 404 transitions, 2211 flow. Second operand 54 states and 12875 transitions. [2022-12-05 18:43:43,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 768 transitions, 7358 flow [2022-12-05 18:43:44,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 768 transitions, 6961 flow, removed 126 selfloop flow, removed 10 redundant places. [2022-12-05 18:43:44,297 INFO L231 Difference]: Finished difference. Result has 529 places, 497 transitions, 4253 flow [2022-12-05 18:43:44,298 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=2075, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=4253, PETRI_PLACES=529, PETRI_TRANSITIONS=497} [2022-12-05 18:43:44,299 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 211 predicate places. [2022-12-05 18:43:44,299 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 497 transitions, 4253 flow [2022-12-05 18:43:44,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 235.08333333333334) internal successors, (5642), 24 states have internal predecessors, (5642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:44,301 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:44,301 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:44,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:43:44,301 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:44,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:44,302 INFO L85 PathProgramCache]: Analyzing trace with hash 513450978, now seen corresponding path program 7 times [2022-12-05 18:43:44,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:44,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678159449] [2022-12-05 18:43:44,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:44,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:45,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:45,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:45,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678159449] [2022-12-05 18:43:45,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678159449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:45,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:45,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:43:45,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073848785] [2022-12-05 18:43:45,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:45,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:43:45,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:45,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:43:45,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:43:45,274 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:43:45,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 497 transitions, 4253 flow. Second operand has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:45,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:45,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:43:45,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:49,137 INFO L130 PetriNetUnfolder]: 3344/15053 cut-off events. [2022-12-05 18:43:49,137 INFO L131 PetriNetUnfolder]: For 158853/159216 co-relation queries the response was YES. [2022-12-05 18:43:49,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42898 conditions, 15053 events. 3344/15053 cut-off events. For 158853/159216 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 184750 event pairs, 478 based on Foata normal form. 72/14327 useless extension candidates. Maximal degree in co-relation 42335. Up to 2176 conditions per place. [2022-12-05 18:43:49,264 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 264 selfloop transitions, 135 changer transitions 47/711 dead transitions. [2022-12-05 18:43:49,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 711 transitions, 7539 flow [2022-12-05 18:43:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-05 18:43:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-12-05 18:43:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 10416 transitions. [2022-12-05 18:43:49,272 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8256182625237793 [2022-12-05 18:43:49,272 INFO L175 Difference]: Start difference. First operand has 529 places, 497 transitions, 4253 flow. Second operand 38 states and 10416 transitions. [2022-12-05 18:43:49,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 711 transitions, 7539 flow [2022-12-05 18:43:50,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 711 transitions, 6748 flow, removed 384 selfloop flow, removed 13 redundant places. [2022-12-05 18:43:50,076 INFO L231 Difference]: Finished difference. Result has 548 places, 524 transitions, 4885 flow [2022-12-05 18:43:50,077 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=3928, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=4885, PETRI_PLACES=548, PETRI_TRANSITIONS=524} [2022-12-05 18:43:50,078 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 230 predicate places. [2022-12-05 18:43:50,078 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 524 transitions, 4885 flow [2022-12-05 18:43:50,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:50,080 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:50,080 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:50,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:43:50,080 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:50,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash -999340682, now seen corresponding path program 8 times [2022-12-05 18:43:50,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:50,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700284703] [2022-12-05 18:43:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:50,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:50,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:50,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700284703] [2022-12-05 18:43:50,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700284703] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:50,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:50,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:43:50,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938377591] [2022-12-05 18:43:50,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:50,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:43:50,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:50,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:43:50,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:43:50,839 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:43:50,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 524 transitions, 4885 flow. Second operand has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:50,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:50,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:43:50,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:54,799 INFO L130 PetriNetUnfolder]: 3314/14993 cut-off events. [2022-12-05 18:43:54,800 INFO L131 PetriNetUnfolder]: For 127791/128234 co-relation queries the response was YES. [2022-12-05 18:43:54,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41464 conditions, 14993 events. 3314/14993 cut-off events. For 127791/128234 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 183901 event pairs, 514 based on Foata normal form. 80/14280 useless extension candidates. Maximal degree in co-relation 40881. Up to 2176 conditions per place. [2022-12-05 18:43:54,955 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 232 selfloop transitions, 139 changer transitions 42/678 dead transitions. [2022-12-05 18:43:54,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 678 transitions, 7208 flow [2022-12-05 18:43:54,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-05 18:43:54,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-05 18:43:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8771 transitions. [2022-12-05 18:43:54,962 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8255835843373494 [2022-12-05 18:43:54,962 INFO L175 Difference]: Start difference. First operand has 548 places, 524 transitions, 4885 flow. Second operand 32 states and 8771 transitions. [2022-12-05 18:43:54,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 678 transitions, 7208 flow [2022-12-05 18:43:55,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 678 transitions, 6875 flow, removed 90 selfloop flow, removed 14 redundant places. [2022-12-05 18:43:55,493 INFO L231 Difference]: Finished difference. Result has 570 places, 532 transitions, 5127 flow [2022-12-05 18:43:55,493 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=4580, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=5127, PETRI_PLACES=570, PETRI_TRANSITIONS=532} [2022-12-05 18:43:55,494 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 252 predicate places. [2022-12-05 18:43:55,494 INFO L495 AbstractCegarLoop]: Abstraction has has 570 places, 532 transitions, 5127 flow [2022-12-05 18:43:55,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.5) internal successors, (3787), 14 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:55,496 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:43:55,496 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:43:55,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 18:43:55,496 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:43:55,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:43:55,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1259328334, now seen corresponding path program 1 times [2022-12-05 18:43:55,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:43:55,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837027538] [2022-12-05 18:43:55,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:43:55,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:43:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:43:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:43:56,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:43:56,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837027538] [2022-12-05 18:43:56,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837027538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:43:56,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:43:56,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:43:56,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786976552] [2022-12-05 18:43:56,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:43:56,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:43:56,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:43:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:43:56,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:43:56,490 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 332 [2022-12-05 18:43:56,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 532 transitions, 5127 flow. Second operand has 16 states, 16 states have (on average 250.25) internal successors, (4004), 16 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:43:56,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:43:56,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 332 [2022-12-05 18:43:56,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:43:59,721 INFO L130 PetriNetUnfolder]: 3179/14414 cut-off events. [2022-12-05 18:43:59,721 INFO L131 PetriNetUnfolder]: For 124763/125249 co-relation queries the response was YES. [2022-12-05 18:43:59,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40007 conditions, 14414 events. 3179/14414 cut-off events. For 124763/125249 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 175050 event pairs, 752 based on Foata normal form. 66/13723 useless extension candidates. Maximal degree in co-relation 39443. Up to 3368 conditions per place. [2022-12-05 18:43:59,868 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 175 selfloop transitions, 159 changer transitions 25/603 dead transitions. [2022-12-05 18:43:59,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 603 transitions, 6615 flow [2022-12-05 18:43:59,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-05 18:43:59,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-05 18:43:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6315 transitions. [2022-12-05 18:43:59,873 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7608433734939759 [2022-12-05 18:43:59,873 INFO L175 Difference]: Start difference. First operand has 570 places, 532 transitions, 5127 flow. Second operand 25 states and 6315 transitions. [2022-12-05 18:43:59,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 603 transitions, 6615 flow [2022-12-05 18:44:00,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 603 transitions, 6209 flow, removed 93 selfloop flow, removed 18 redundant places. [2022-12-05 18:44:00,321 INFO L231 Difference]: Finished difference. Result has 581 places, 538 transitions, 5415 flow [2022-12-05 18:44:00,321 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=4737, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=5415, PETRI_PLACES=581, PETRI_TRANSITIONS=538} [2022-12-05 18:44:00,322 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 263 predicate places. [2022-12-05 18:44:00,322 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 538 transitions, 5415 flow [2022-12-05 18:44:00,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 250.25) internal successors, (4004), 16 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:00,323 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:00,323 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:00,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 18:44:00,323 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:44:00,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:00,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1664659318, now seen corresponding path program 1 times [2022-12-05 18:44:00,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:00,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328407808] [2022-12-05 18:44:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:00,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:01,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:01,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:01,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328407808] [2022-12-05 18:44:01,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328407808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:01,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:01,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:44:01,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551237724] [2022-12-05 18:44:01,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:01,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:44:01,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:01,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:44:01,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:44:01,135 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:44:01,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 538 transitions, 5415 flow. Second operand has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:01,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:01,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:44:01,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:06,266 INFO L130 PetriNetUnfolder]: 5565/19935 cut-off events. [2022-12-05 18:44:06,266 INFO L131 PetriNetUnfolder]: For 207503/207751 co-relation queries the response was YES. [2022-12-05 18:44:06,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63573 conditions, 19935 events. 5565/19935 cut-off events. For 207503/207751 co-relation queries the response was YES. Maximal size of possible extension queue 851. Compared 243960 event pairs, 266 based on Foata normal form. 44/19309 useless extension candidates. Maximal degree in co-relation 62983. Up to 3401 conditions per place. [2022-12-05 18:44:06,470 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 176 selfloop transitions, 157 changer transitions 215/825 dead transitions. [2022-12-05 18:44:06,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 825 transitions, 11120 flow [2022-12-05 18:44:06,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-05 18:44:06,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-05 18:44:06,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6857 transitions. [2022-12-05 18:44:06,475 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.826144578313253 [2022-12-05 18:44:06,475 INFO L175 Difference]: Start difference. First operand has 581 places, 538 transitions, 5415 flow. Second operand 25 states and 6857 transitions. [2022-12-05 18:44:06,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 825 transitions, 11120 flow [2022-12-05 18:44:07,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 825 transitions, 10558 flow, removed 94 selfloop flow, removed 14 redundant places. [2022-12-05 18:44:07,593 INFO L231 Difference]: Finished difference. Result has 603 places, 558 transitions, 6336 flow [2022-12-05 18:44:07,593 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=5112, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=6336, PETRI_PLACES=603, PETRI_TRANSITIONS=558} [2022-12-05 18:44:07,594 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 285 predicate places. [2022-12-05 18:44:07,594 INFO L495 AbstractCegarLoop]: Abstraction has has 603 places, 558 transitions, 6336 flow [2022-12-05 18:44:07,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:07,595 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:07,595 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:07,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-05 18:44:07,595 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:44:07,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:07,595 INFO L85 PathProgramCache]: Analyzing trace with hash -379276242, now seen corresponding path program 2 times [2022-12-05 18:44:07,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:07,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061614280] [2022-12-05 18:44:07,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:07,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:08,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:08,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061614280] [2022-12-05 18:44:08,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061614280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:08,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:08,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:44:08,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496217017] [2022-12-05 18:44:08,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:08,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:44:08,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:08,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:44:08,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:44:08,468 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:44:08,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 558 transitions, 6336 flow. Second operand has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:08,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:08,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:44:08,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:13,066 INFO L130 PetriNetUnfolder]: 4293/16269 cut-off events. [2022-12-05 18:44:13,067 INFO L131 PetriNetUnfolder]: For 203373/204202 co-relation queries the response was YES. [2022-12-05 18:44:13,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55124 conditions, 16269 events. 4293/16269 cut-off events. For 203373/204202 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 191592 event pairs, 266 based on Foata normal form. 178/15859 useless extension candidates. Maximal degree in co-relation 54599. Up to 2341 conditions per place. [2022-12-05 18:44:13,237 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 182 selfloop transitions, 117 changer transitions 140/716 dead transitions. [2022-12-05 18:44:13,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 716 transitions, 9075 flow [2022-12-05 18:44:13,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 18:44:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 18:44:13,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5499 transitions. [2022-12-05 18:44:13,241 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8281626506024097 [2022-12-05 18:44:13,241 INFO L175 Difference]: Start difference. First operand has 603 places, 558 transitions, 6336 flow. Second operand 20 states and 5499 transitions. [2022-12-05 18:44:13,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 716 transitions, 9075 flow [2022-12-05 18:44:14,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 716 transitions, 8877 flow, removed 47 selfloop flow, removed 16 redundant places. [2022-12-05 18:44:14,261 INFO L231 Difference]: Finished difference. Result has 601 places, 517 transitions, 5215 flow [2022-12-05 18:44:14,262 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=6216, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5215, PETRI_PLACES=601, PETRI_TRANSITIONS=517} [2022-12-05 18:44:14,263 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 283 predicate places. [2022-12-05 18:44:14,263 INFO L495 AbstractCegarLoop]: Abstraction has has 601 places, 517 transitions, 5215 flow [2022-12-05 18:44:14,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:14,264 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:14,264 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:14,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-05 18:44:14,264 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:44:14,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:14,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1185799618, now seen corresponding path program 3 times [2022-12-05 18:44:14,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:14,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235455023] [2022-12-05 18:44:14,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:14,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:16,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:16,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:16,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235455023] [2022-12-05 18:44:16,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235455023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:16,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:16,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-05 18:44:16,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460147091] [2022-12-05 18:44:16,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:16,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-05 18:44:16,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:16,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-05 18:44:16,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-12-05 18:44:16,149 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 332 [2022-12-05 18:44:16,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 517 transitions, 5215 flow. Second operand has 27 states, 27 states have (on average 232.88888888888889) internal successors, (6288), 27 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:16,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:16,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 332 [2022-12-05 18:44:16,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:25,241 INFO L130 PetriNetUnfolder]: 7170/23570 cut-off events. [2022-12-05 18:44:25,241 INFO L131 PetriNetUnfolder]: For 241499/242590 co-relation queries the response was YES. [2022-12-05 18:44:25,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72288 conditions, 23570 events. 7170/23570 cut-off events. For 241499/242590 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 276992 event pairs, 3690 based on Foata normal form. 293/22755 useless extension candidates. Maximal degree in co-relation 71766. Up to 6080 conditions per place. [2022-12-05 18:44:25,587 INFO L137 encePairwiseOnDemand]: 301/332 looper letters, 298 selfloop transitions, 128 changer transitions 94/744 dead transitions. [2022-12-05 18:44:25,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 744 transitions, 8095 flow [2022-12-05 18:44:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-05 18:44:25,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-12-05 18:44:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 10900 transitions. [2022-12-05 18:44:25,596 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.71372446306967 [2022-12-05 18:44:25,596 INFO L175 Difference]: Start difference. First operand has 601 places, 517 transitions, 5215 flow. Second operand 46 states and 10900 transitions. [2022-12-05 18:44:25,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 744 transitions, 8095 flow [2022-12-05 18:44:27,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 744 transitions, 7648 flow, removed 44 selfloop flow, removed 19 redundant places. [2022-12-05 18:44:27,298 INFO L231 Difference]: Finished difference. Result has 639 places, 527 transitions, 5481 flow [2022-12-05 18:44:27,299 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=4889, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=5481, PETRI_PLACES=639, PETRI_TRANSITIONS=527} [2022-12-05 18:44:27,300 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 321 predicate places. [2022-12-05 18:44:27,300 INFO L495 AbstractCegarLoop]: Abstraction has has 639 places, 527 transitions, 5481 flow [2022-12-05 18:44:27,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 232.88888888888889) internal successors, (6288), 27 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:27,301 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:27,301 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:27,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-05 18:44:27,302 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:44:27,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:27,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1946038808, now seen corresponding path program 4 times [2022-12-05 18:44:27,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:27,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756363196] [2022-12-05 18:44:27,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:27,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:28,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:28,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:28,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756363196] [2022-12-05 18:44:28,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756363196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:28,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:28,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 18:44:28,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336135955] [2022-12-05 18:44:28,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:28,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:44:28,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:28,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:44:28,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-12-05 18:44:28,586 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 332 [2022-12-05 18:44:28,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 527 transitions, 5481 flow. Second operand has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:28,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:28,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 332 [2022-12-05 18:44:28,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:35,450 INFO L130 PetriNetUnfolder]: 5278/20420 cut-off events. [2022-12-05 18:44:35,450 INFO L131 PetriNetUnfolder]: For 212186/213192 co-relation queries the response was YES. [2022-12-05 18:44:35,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62201 conditions, 20420 events. 5278/20420 cut-off events. For 212186/213192 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 245375 event pairs, 1177 based on Foata normal form. 247/19719 useless extension candidates. Maximal degree in co-relation 61970. Up to 5372 conditions per place. [2022-12-05 18:44:35,739 INFO L137 encePairwiseOnDemand]: 312/332 looper letters, 159 selfloop transitions, 93 changer transitions 152/664 dead transitions. [2022-12-05 18:44:35,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 664 transitions, 7457 flow [2022-12-05 18:44:35,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-05 18:44:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-05 18:44:35,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8157 transitions. [2022-12-05 18:44:35,744 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8189759036144578 [2022-12-05 18:44:35,744 INFO L175 Difference]: Start difference. First operand has 639 places, 527 transitions, 5481 flow. Second operand 30 states and 8157 transitions. [2022-12-05 18:44:35,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 664 transitions, 7457 flow [2022-12-05 18:44:37,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 664 transitions, 7321 flow, removed 44 selfloop flow, removed 23 redundant places. [2022-12-05 18:44:37,133 INFO L231 Difference]: Finished difference. Result has 631 places, 467 transitions, 4305 flow [2022-12-05 18:44:37,134 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=5391, PETRI_DIFFERENCE_MINUEND_PLACES=590, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4305, PETRI_PLACES=631, PETRI_TRANSITIONS=467} [2022-12-05 18:44:37,135 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 313 predicate places. [2022-12-05 18:44:37,135 INFO L495 AbstractCegarLoop]: Abstraction has has 631 places, 467 transitions, 4305 flow [2022-12-05 18:44:37,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:37,136 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:37,136 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:37,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-05 18:44:37,136 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:44:37,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:37,137 INFO L85 PathProgramCache]: Analyzing trace with hash 95892876, now seen corresponding path program 5 times [2022-12-05 18:44:37,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:37,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536451359] [2022-12-05 18:44:37,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:37,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:37,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:37,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536451359] [2022-12-05 18:44:37,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536451359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:37,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:37,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:44:37,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715093436] [2022-12-05 18:44:37,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:37,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:44:37,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:37,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:44:37,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:44:37,841 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:44:37,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 631 places, 467 transitions, 4305 flow. Second operand has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:37,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:37,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:44:37,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:42,906 INFO L130 PetriNetUnfolder]: 4158/16574 cut-off events. [2022-12-05 18:44:42,906 INFO L131 PetriNetUnfolder]: For 261287/261867 co-relation queries the response was YES. [2022-12-05 18:44:43,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57660 conditions, 16574 events. 4158/16574 cut-off events. For 261287/261867 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 195103 event pairs, 370 based on Foata normal form. 128/16142 useless extension candidates. Maximal degree in co-relation 57545. Up to 2108 conditions per place. [2022-12-05 18:44:43,139 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 181 selfloop transitions, 92 changer transitions 185/728 dead transitions. [2022-12-05 18:44:43,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 728 transitions, 9018 flow [2022-12-05 18:44:43,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-05 18:44:43,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-05 18:44:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8217 transitions. [2022-12-05 18:44:43,143 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.825 [2022-12-05 18:44:43,143 INFO L175 Difference]: Start difference. First operand has 631 places, 467 transitions, 4305 flow. Second operand 30 states and 8217 transitions. [2022-12-05 18:44:43,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 728 transitions, 9018 flow [2022-12-05 18:44:44,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 728 transitions, 8088 flow, removed 86 selfloop flow, removed 45 redundant places. [2022-12-05 18:44:44,272 INFO L231 Difference]: Finished difference. Result has 592 places, 481 transitions, 4601 flow [2022-12-05 18:44:44,272 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=3838, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4601, PETRI_PLACES=592, PETRI_TRANSITIONS=481} [2022-12-05 18:44:44,273 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 274 predicate places. [2022-12-05 18:44:44,273 INFO L495 AbstractCegarLoop]: Abstraction has has 592 places, 481 transitions, 4601 flow [2022-12-05 18:44:44,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:44,274 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:44,274 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:44,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-05 18:44:44,274 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:44:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1260635010, now seen corresponding path program 6 times [2022-12-05 18:44:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:44,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544086210] [2022-12-05 18:44:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:44,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:45,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:45,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544086210] [2022-12-05 18:44:45,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544086210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:45,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:45,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-05 18:44:45,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684189894] [2022-12-05 18:44:45,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:45,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-05 18:44:45,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:45,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-05 18:44:45,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-12-05 18:44:45,738 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 332 [2022-12-05 18:44:45,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 592 places, 481 transitions, 4601 flow. Second operand has 27 states, 27 states have (on average 232.88888888888889) internal successors, (6288), 27 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:45,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:45,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 332 [2022-12-05 18:44:45,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:53,047 INFO L130 PetriNetUnfolder]: 5334/18106 cut-off events. [2022-12-05 18:44:53,048 INFO L131 PetriNetUnfolder]: For 189025/189876 co-relation queries the response was YES. [2022-12-05 18:44:53,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55342 conditions, 18106 events. 5334/18106 cut-off events. For 189025/189876 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 202452 event pairs, 2849 based on Foata normal form. 231/17481 useless extension candidates. Maximal degree in co-relation 55245. Up to 5291 conditions per place. [2022-12-05 18:44:53,261 INFO L137 encePairwiseOnDemand]: 302/332 looper letters, 268 selfloop transitions, 104 changer transitions 72/668 dead transitions. [2022-12-05 18:44:53,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 668 transitions, 6695 flow [2022-12-05 18:44:53,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-05 18:44:53,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-05 18:44:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 10186 transitions. [2022-12-05 18:44:53,268 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7135051835247969 [2022-12-05 18:44:53,269 INFO L175 Difference]: Start difference. First operand has 592 places, 481 transitions, 4601 flow. Second operand 43 states and 10186 transitions. [2022-12-05 18:44:53,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 668 transitions, 6695 flow [2022-12-05 18:44:54,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 668 transitions, 6513 flow, removed 66 selfloop flow, removed 21 redundant places. [2022-12-05 18:44:54,257 INFO L231 Difference]: Finished difference. Result has 619 places, 484 transitions, 4798 flow [2022-12-05 18:44:54,257 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=4515, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=4798, PETRI_PLACES=619, PETRI_TRANSITIONS=484} [2022-12-05 18:44:54,261 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 301 predicate places. [2022-12-05 18:44:54,261 INFO L495 AbstractCegarLoop]: Abstraction has has 619 places, 484 transitions, 4798 flow [2022-12-05 18:44:54,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 232.88888888888889) internal successors, (6288), 27 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:54,263 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:54,263 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:54,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-05 18:44:54,263 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:44:54,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1171762116, now seen corresponding path program 7 times [2022-12-05 18:44:54,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:54,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858391966] [2022-12-05 18:44:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:54,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:56,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:56,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858391966] [2022-12-05 18:44:56,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858391966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:56,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:56,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-05 18:44:56,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767248283] [2022-12-05 18:44:56,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:56,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-05 18:44:56,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-05 18:44:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2022-12-05 18:44:56,312 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 332 [2022-12-05 18:44:56,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 484 transitions, 4798 flow. Second operand has 27 states, 27 states have (on average 232.88888888888889) internal successors, (6288), 27 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:56,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:56,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 332 [2022-12-05 18:44:56,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:03,082 INFO L130 PetriNetUnfolder]: 5268/17778 cut-off events. [2022-12-05 18:45:03,082 INFO L131 PetriNetUnfolder]: For 211063/211882 co-relation queries the response was YES. [2022-12-05 18:45:03,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58828 conditions, 17778 events. 5268/17778 cut-off events. For 211063/211882 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 199509 event pairs, 2426 based on Foata normal form. 189/17200 useless extension candidates. Maximal degree in co-relation 58719. Up to 5271 conditions per place. [2022-12-05 18:45:03,412 INFO L137 encePairwiseOnDemand]: 302/332 looper letters, 289 selfloop transitions, 116 changer transitions 72/701 dead transitions. [2022-12-05 18:45:03,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 641 places, 701 transitions, 7203 flow [2022-12-05 18:45:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-05 18:45:03,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-05 18:45:03,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 8605 transitions. [2022-12-05 18:45:03,416 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7199631860776439 [2022-12-05 18:45:03,416 INFO L175 Difference]: Start difference. First operand has 619 places, 484 transitions, 4798 flow. Second operand 36 states and 8605 transitions. [2022-12-05 18:45:03,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 641 places, 701 transitions, 7203 flow [2022-12-05 18:45:04,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 701 transitions, 6973 flow, removed 28 selfloop flow, removed 30 redundant places. [2022-12-05 18:45:04,197 INFO L231 Difference]: Finished difference. Result has 622 places, 501 transitions, 5189 flow [2022-12-05 18:45:04,197 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=4612, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=5189, PETRI_PLACES=622, PETRI_TRANSITIONS=501} [2022-12-05 18:45:04,198 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 304 predicate places. [2022-12-05 18:45:04,198 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 501 transitions, 5189 flow [2022-12-05 18:45:04,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 232.88888888888889) internal successors, (6288), 27 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:04,198 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:04,199 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:04,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-05 18:45:04,199 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:04,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash -698593146, now seen corresponding path program 8 times [2022-12-05 18:45:04,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:04,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449653853] [2022-12-05 18:45:04,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:04,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:04,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:04,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449653853] [2022-12-05 18:45:04,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449653853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:04,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:04,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:45:04,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208495425] [2022-12-05 18:45:04,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:04,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:45:04,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:04,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:45:04,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:45:04,819 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:45:04,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 501 transitions, 5189 flow. Second operand has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:04,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:04,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:45:04,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:08,450 INFO L130 PetriNetUnfolder]: 3525/13871 cut-off events. [2022-12-05 18:45:08,450 INFO L131 PetriNetUnfolder]: For 173184/174123 co-relation queries the response was YES. [2022-12-05 18:45:08,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45498 conditions, 13871 events. 3525/13871 cut-off events. For 173184/174123 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 157207 event pairs, 237 based on Foata normal form. 180/13511 useless extension candidates. Maximal degree in co-relation 45387. Up to 2916 conditions per place. [2022-12-05 18:45:08,587 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 150 selfloop transitions, 57 changer transitions 136/615 dead transitions. [2022-12-05 18:45:08,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 615 transitions, 6711 flow [2022-12-05 18:45:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 18:45:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 18:45:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5503 transitions. [2022-12-05 18:45:08,590 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8287650602409639 [2022-12-05 18:45:08,590 INFO L175 Difference]: Start difference. First operand has 622 places, 501 transitions, 5189 flow. Second operand 20 states and 5503 transitions. [2022-12-05 18:45:08,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 615 transitions, 6711 flow [2022-12-05 18:45:09,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 615 transitions, 6439 flow, removed 76 selfloop flow, removed 22 redundant places. [2022-12-05 18:45:09,152 INFO L231 Difference]: Finished difference. Result has 617 places, 443 transitions, 3639 flow [2022-12-05 18:45:09,153 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=4931, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3639, PETRI_PLACES=617, PETRI_TRANSITIONS=443} [2022-12-05 18:45:09,154 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 299 predicate places. [2022-12-05 18:45:09,154 INFO L495 AbstractCegarLoop]: Abstraction has has 617 places, 443 transitions, 3639 flow [2022-12-05 18:45:09,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:09,155 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:09,155 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:09,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-05 18:45:09,155 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:09,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:09,155 INFO L85 PathProgramCache]: Analyzing trace with hash 719077910, now seen corresponding path program 9 times [2022-12-05 18:45:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:09,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624253532] [2022-12-05 18:45:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:10,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:10,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624253532] [2022-12-05 18:45:10,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624253532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:10,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:10,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 18:45:10,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95852254] [2022-12-05 18:45:10,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:10,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:45:10,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:10,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:45:10,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-12-05 18:45:10,294 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 332 [2022-12-05 18:45:10,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 443 transitions, 3639 flow. Second operand has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:10,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:10,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 332 [2022-12-05 18:45:10,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:14,249 INFO L130 PetriNetUnfolder]: 2903/12165 cut-off events. [2022-12-05 18:45:14,250 INFO L131 PetriNetUnfolder]: For 117940/118448 co-relation queries the response was YES. [2022-12-05 18:45:14,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35195 conditions, 12165 events. 2903/12165 cut-off events. For 117940/118448 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 131535 event pairs, 1301 based on Foata normal form. 130/11663 useless extension candidates. Maximal degree in co-relation 35085. Up to 2832 conditions per place. [2022-12-05 18:45:14,355 INFO L137 encePairwiseOnDemand]: 312/332 looper letters, 167 selfloop transitions, 49 changer transitions 99/575 dead transitions. [2022-12-05 18:45:14,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 575 transitions, 5275 flow [2022-12-05 18:45:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-05 18:45:14,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-05 18:45:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 8436 transitions. [2022-12-05 18:45:14,359 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8196657598134474 [2022-12-05 18:45:14,359 INFO L175 Difference]: Start difference. First operand has 617 places, 443 transitions, 3639 flow. Second operand 31 states and 8436 transitions. [2022-12-05 18:45:14,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 575 transitions, 5275 flow [2022-12-05 18:45:14,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 575 transitions, 4836 flow, removed 44 selfloop flow, removed 28 redundant places. [2022-12-05 18:45:14,675 INFO L231 Difference]: Finished difference. Result has 598 places, 418 transitions, 2898 flow [2022-12-05 18:45:14,675 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=3305, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=2898, PETRI_PLACES=598, PETRI_TRANSITIONS=418} [2022-12-05 18:45:14,675 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 280 predicate places. [2022-12-05 18:45:14,675 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 418 transitions, 2898 flow [2022-12-05 18:45:14,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:14,676 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:14,676 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:14,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-05 18:45:14,676 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:14,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:14,677 INFO L85 PathProgramCache]: Analyzing trace with hash -547538534, now seen corresponding path program 10 times [2022-12-05 18:45:14,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:14,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845058725] [2022-12-05 18:45:14,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:14,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:16,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:16,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845058725] [2022-12-05 18:45:16,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845058725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:16,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:16,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-05 18:45:16,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73075182] [2022-12-05 18:45:16,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:16,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-05 18:45:16,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:16,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-05 18:45:16,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:45:16,207 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 332 [2022-12-05 18:45:16,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 418 transitions, 2898 flow. Second operand has 18 states, 18 states have (on average 248.0) internal successors, (4464), 18 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:16,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:16,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 332 [2022-12-05 18:45:16,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:19,385 INFO L130 PetriNetUnfolder]: 2229/9210 cut-off events. [2022-12-05 18:45:19,385 INFO L131 PetriNetUnfolder]: For 96548/96939 co-relation queries the response was YES. [2022-12-05 18:45:19,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28297 conditions, 9210 events. 2229/9210 cut-off events. For 96548/96939 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 94116 event pairs, 678 based on Foata normal form. 106/8907 useless extension candidates. Maximal degree in co-relation 28189. Up to 3028 conditions per place. [2022-12-05 18:45:19,483 INFO L137 encePairwiseOnDemand]: 312/332 looper letters, 134 selfloop transitions, 47 changer transitions 84/504 dead transitions. [2022-12-05 18:45:19,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 504 transitions, 4097 flow [2022-12-05 18:45:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-05 18:45:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-05 18:45:19,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 7257 transitions. [2022-12-05 18:45:19,487 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7537390943082676 [2022-12-05 18:45:19,487 INFO L175 Difference]: Start difference. First operand has 598 places, 418 transitions, 2898 flow. Second operand 29 states and 7257 transitions. [2022-12-05 18:45:19,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 504 transitions, 4097 flow [2022-12-05 18:45:19,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 504 transitions, 3836 flow, removed 73 selfloop flow, removed 34 redundant places. [2022-12-05 18:45:19,762 INFO L231 Difference]: Finished difference. Result has 580 places, 394 transitions, 2452 flow [2022-12-05 18:45:19,763 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=2729, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=2452, PETRI_PLACES=580, PETRI_TRANSITIONS=394} [2022-12-05 18:45:19,763 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 262 predicate places. [2022-12-05 18:45:19,763 INFO L495 AbstractCegarLoop]: Abstraction has has 580 places, 394 transitions, 2452 flow [2022-12-05 18:45:19,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 248.0) internal successors, (4464), 18 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:19,764 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:19,764 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:19,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-05 18:45:19,764 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:19,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:19,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1267584732, now seen corresponding path program 11 times [2022-12-05 18:45:19,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:19,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449437087] [2022-12-05 18:45:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:19,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:21,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:21,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449437087] [2022-12-05 18:45:21,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449437087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:21,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:21,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-12-05 18:45:21,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076697889] [2022-12-05 18:45:21,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:21,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-05 18:45:21,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:21,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-05 18:45:21,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2022-12-05 18:45:21,821 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 332 [2022-12-05 18:45:21,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 394 transitions, 2452 flow. Second operand has 30 states, 30 states have (on average 214.5) internal successors, (6435), 30 states have internal predecessors, (6435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:21,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:21,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 332 [2022-12-05 18:45:21,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:25,357 INFO L130 PetriNetUnfolder]: 2061/8828 cut-off events. [2022-12-05 18:45:25,358 INFO L131 PetriNetUnfolder]: For 79254/79566 co-relation queries the response was YES. [2022-12-05 18:45:25,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25602 conditions, 8828 events. 2061/8828 cut-off events. For 79254/79566 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 90266 event pairs, 438 based on Foata normal form. 90/8537 useless extension candidates. Maximal degree in co-relation 25501. Up to 1255 conditions per place. [2022-12-05 18:45:25,470 INFO L137 encePairwiseOnDemand]: 288/332 looper letters, 182 selfloop transitions, 60 changer transitions 90/538 dead transitions. [2022-12-05 18:45:25,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 538 transitions, 4160 flow [2022-12-05 18:45:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-05 18:45:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-12-05 18:45:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 9770 transitions. [2022-12-05 18:45:25,476 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6539491298527443 [2022-12-05 18:45:25,477 INFO L175 Difference]: Start difference. First operand has 580 places, 394 transitions, 2452 flow. Second operand 45 states and 9770 transitions. [2022-12-05 18:45:25,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 538 transitions, 4160 flow [2022-12-05 18:45:25,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 538 transitions, 3470 flow, removed 132 selfloop flow, removed 48 redundant places. [2022-12-05 18:45:25,687 INFO L231 Difference]: Finished difference. Result has 555 places, 379 transitions, 1874 flow [2022-12-05 18:45:25,687 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1968, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=1874, PETRI_PLACES=555, PETRI_TRANSITIONS=379} [2022-12-05 18:45:25,688 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 237 predicate places. [2022-12-05 18:45:25,688 INFO L495 AbstractCegarLoop]: Abstraction has has 555 places, 379 transitions, 1874 flow [2022-12-05 18:45:25,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 214.5) internal successors, (6435), 30 states have internal predecessors, (6435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:25,689 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:25,689 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:25,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-05 18:45:25,689 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:25,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1062361454, now seen corresponding path program 12 times [2022-12-05 18:45:25,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:25,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339715319] [2022-12-05 18:45:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:25,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:26,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:26,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339715319] [2022-12-05 18:45:26,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339715319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:26,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:26,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 18:45:26,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514834826] [2022-12-05 18:45:26,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:26,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:45:26,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:26,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:45:26,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-12-05 18:45:26,655 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 332 [2022-12-05 18:45:26,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 379 transitions, 1874 flow. Second operand has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:26,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:26,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 332 [2022-12-05 18:45:26,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:28,579 INFO L130 PetriNetUnfolder]: 1626/6997 cut-off events. [2022-12-05 18:45:28,579 INFO L131 PetriNetUnfolder]: For 45168/45396 co-relation queries the response was YES. [2022-12-05 18:45:28,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18913 conditions, 6997 events. 1626/6997 cut-off events. For 45168/45396 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 67532 event pairs, 290 based on Foata normal form. 74/6779 useless extension candidates. Maximal degree in co-relation 18829. Up to 1133 conditions per place. [2022-12-05 18:45:28,653 INFO L137 encePairwiseOnDemand]: 313/332 looper letters, 116 selfloop transitions, 25 changer transitions 98/498 dead transitions. [2022-12-05 18:45:28,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 498 transitions, 3155 flow [2022-12-05 18:45:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-05 18:45:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-05 18:45:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8147 transitions. [2022-12-05 18:45:28,657 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8179718875502008 [2022-12-05 18:45:28,657 INFO L175 Difference]: Start difference. First operand has 555 places, 379 transitions, 1874 flow. Second operand 30 states and 8147 transitions. [2022-12-05 18:45:28,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 498 transitions, 3155 flow [2022-12-05 18:45:28,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 498 transitions, 2795 flow, removed 96 selfloop flow, removed 47 redundant places. [2022-12-05 18:45:28,766 INFO L231 Difference]: Finished difference. Result has 529 places, 356 transitions, 1419 flow [2022-12-05 18:45:28,766 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1662, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1419, PETRI_PLACES=529, PETRI_TRANSITIONS=356} [2022-12-05 18:45:28,766 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 211 predicate places. [2022-12-05 18:45:28,766 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 356 transitions, 1419 flow [2022-12-05 18:45:28,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:28,767 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:28,767 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:28,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-05 18:45:28,767 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:28,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:28,768 INFO L85 PathProgramCache]: Analyzing trace with hash -429368648, now seen corresponding path program 13 times [2022-12-05 18:45:28,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:28,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641957993] [2022-12-05 18:45:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:28,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:30,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:30,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641957993] [2022-12-05 18:45:30,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641957993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:30,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:30,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-05 18:45:30,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219052320] [2022-12-05 18:45:30,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:30,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-05 18:45:30,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:30,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-05 18:45:30,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2022-12-05 18:45:30,343 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 332 [2022-12-05 18:45:30,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 356 transitions, 1419 flow. Second operand has 27 states, 27 states have (on average 232.88888888888889) internal successors, (6288), 27 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:30,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:30,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 332 [2022-12-05 18:45:30,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:33,140 INFO L130 PetriNetUnfolder]: 1308/5280 cut-off events. [2022-12-05 18:45:33,141 INFO L131 PetriNetUnfolder]: For 30803/30905 co-relation queries the response was YES. [2022-12-05 18:45:33,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14654 conditions, 5280 events. 1308/5280 cut-off events. For 30803/30905 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 46165 event pairs, 838 based on Foata normal form. 20/5107 useless extension candidates. Maximal degree in co-relation 14576. Up to 1561 conditions per place. [2022-12-05 18:45:33,196 INFO L137 encePairwiseOnDemand]: 302/332 looper letters, 147 selfloop transitions, 30 changer transitions 71/472 dead transitions. [2022-12-05 18:45:33,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 472 transitions, 2521 flow [2022-12-05 18:45:33,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-05 18:45:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-05 18:45:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 8505 transitions. [2022-12-05 18:45:33,201 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7115963855421686 [2022-12-05 18:45:33,201 INFO L175 Difference]: Start difference. First operand has 529 places, 356 transitions, 1419 flow. Second operand 36 states and 8505 transitions. [2022-12-05 18:45:33,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 472 transitions, 2521 flow [2022-12-05 18:45:33,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 472 transitions, 2320 flow, removed 34 selfloop flow, removed 35 redundant places. [2022-12-05 18:45:33,252 INFO L231 Difference]: Finished difference. Result has 515 places, 356 transitions, 1378 flow [2022-12-05 18:45:33,252 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1291, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1378, PETRI_PLACES=515, PETRI_TRANSITIONS=356} [2022-12-05 18:45:33,252 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 197 predicate places. [2022-12-05 18:45:33,252 INFO L495 AbstractCegarLoop]: Abstraction has has 515 places, 356 transitions, 1378 flow [2022-12-05 18:45:33,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 232.88888888888889) internal successors, (6288), 27 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:33,253 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:33,253 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:33,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-05 18:45:33,254 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:33,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:33,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1495114528, now seen corresponding path program 14 times [2022-12-05 18:45:33,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:33,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943685800] [2022-12-05 18:45:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:34,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:34,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:34,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943685800] [2022-12-05 18:45:34,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943685800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:34,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:34,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 18:45:34,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445055596] [2022-12-05 18:45:34,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:34,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:45:34,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:34,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:45:34,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-12-05 18:45:34,197 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 332 [2022-12-05 18:45:34,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 356 transitions, 1378 flow. Second operand has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:34,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:34,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 332 [2022-12-05 18:45:34,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:35,439 INFO L130 PetriNetUnfolder]: 908/4347 cut-off events. [2022-12-05 18:45:35,439 INFO L131 PetriNetUnfolder]: For 15129/15291 co-relation queries the response was YES. [2022-12-05 18:45:35,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10159 conditions, 4347 events. 908/4347 cut-off events. For 15129/15291 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 36728 event pairs, 218 based on Foata normal form. 46/4249 useless extension candidates. Maximal degree in co-relation 10089. Up to 681 conditions per place. [2022-12-05 18:45:35,472 INFO L137 encePairwiseOnDemand]: 313/332 looper letters, 100 selfloop transitions, 23 changer transitions 54/436 dead transitions. [2022-12-05 18:45:35,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 436 transitions, 2221 flow [2022-12-05 18:45:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-05 18:45:35,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-05 18:45:35,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6509 transitions. [2022-12-05 18:45:35,475 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8168925702811245 [2022-12-05 18:45:35,475 INFO L175 Difference]: Start difference. First operand has 515 places, 356 transitions, 1378 flow. Second operand 24 states and 6509 transitions. [2022-12-05 18:45:35,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 436 transitions, 2221 flow [2022-12-05 18:45:35,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 436 transitions, 2021 flow, removed 69 selfloop flow, removed 27 redundant places. [2022-12-05 18:45:35,506 INFO L231 Difference]: Finished difference. Result has 480 places, 346 transitions, 1180 flow [2022-12-05 18:45:35,507 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1248, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1180, PETRI_PLACES=480, PETRI_TRANSITIONS=346} [2022-12-05 18:45:35,507 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 162 predicate places. [2022-12-05 18:45:35,507 INFO L495 AbstractCegarLoop]: Abstraction has has 480 places, 346 transitions, 1180 flow [2022-12-05 18:45:35,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:35,508 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:35,508 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:35,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-05 18:45:35,508 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:35,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:35,509 INFO L85 PathProgramCache]: Analyzing trace with hash 265972924, now seen corresponding path program 15 times [2022-12-05 18:45:35,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:35,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505553068] [2022-12-05 18:45:35,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:35,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:36,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:36,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505553068] [2022-12-05 18:45:36,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505553068] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:36,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:36,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 18:45:36,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143341603] [2022-12-05 18:45:36,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:36,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:45:36,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:36,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:45:36,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-12-05 18:45:36,269 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 332 [2022-12-05 18:45:36,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 346 transitions, 1180 flow. Second operand has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:36,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:36,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 332 [2022-12-05 18:45:36,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:37,584 INFO L130 PetriNetUnfolder]: 897/4233 cut-off events. [2022-12-05 18:45:37,584 INFO L131 PetriNetUnfolder]: For 17520/17634 co-relation queries the response was YES. [2022-12-05 18:45:37,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10129 conditions, 4233 events. 897/4233 cut-off events. For 17520/17634 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 36566 event pairs, 78 based on Foata normal form. 12/4110 useless extension candidates. Maximal degree in co-relation 10060. Up to 530 conditions per place. [2022-12-05 18:45:37,629 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 121 selfloop transitions, 29 changer transitions 43/452 dead transitions. [2022-12-05 18:45:37,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 452 transitions, 2188 flow [2022-12-05 18:45:37,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-05 18:45:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-05 18:45:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 5198 transitions. [2022-12-05 18:45:37,633 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8240329740012682 [2022-12-05 18:45:37,633 INFO L175 Difference]: Start difference. First operand has 480 places, 346 transitions, 1180 flow. Second operand 19 states and 5198 transitions. [2022-12-05 18:45:37,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 452 transitions, 2188 flow [2022-12-05 18:45:37,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 452 transitions, 1909 flow, removed 62 selfloop flow, removed 32 redundant places. [2022-12-05 18:45:37,670 INFO L231 Difference]: Finished difference. Result has 448 places, 352 transitions, 1200 flow [2022-12-05 18:45:37,671 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1200, PETRI_PLACES=448, PETRI_TRANSITIONS=352} [2022-12-05 18:45:37,671 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 130 predicate places. [2022-12-05 18:45:37,671 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 352 transitions, 1200 flow [2022-12-05 18:45:37,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:37,672 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:37,672 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:37,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-05 18:45:37,672 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:37,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:37,672 INFO L85 PathProgramCache]: Analyzing trace with hash 204571492, now seen corresponding path program 16 times [2022-12-05 18:45:37,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:37,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444581294] [2022-12-05 18:45:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:37,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:38,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:38,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444581294] [2022-12-05 18:45:38,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444581294] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:38,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:38,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:45:38,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182907693] [2022-12-05 18:45:38,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:38,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:38,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:38,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:38,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:45:38,307 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 332 [2022-12-05 18:45:38,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 352 transitions, 1200 flow. Second operand has 16 states, 16 states have (on average 268.3125) internal successors, (4293), 16 states have internal predecessors, (4293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:38,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:38,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 332 [2022-12-05 18:45:38,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:39,480 INFO L130 PetriNetUnfolder]: 815/3752 cut-off events. [2022-12-05 18:45:39,480 INFO L131 PetriNetUnfolder]: For 6643/6778 co-relation queries the response was YES. [2022-12-05 18:45:39,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7883 conditions, 3752 events. 815/3752 cut-off events. For 6643/6778 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 31098 event pairs, 84 based on Foata normal form. 12/3641 useless extension candidates. Maximal degree in co-relation 7827. Up to 527 conditions per place. [2022-12-05 18:45:39,506 INFO L137 encePairwiseOnDemand]: 314/332 looper letters, 97 selfloop transitions, 18 changer transitions 59/428 dead transitions. [2022-12-05 18:45:39,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 428 transitions, 1838 flow [2022-12-05 18:45:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:45:39,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:45:39,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4914 transitions. [2022-12-05 18:45:39,509 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.822289156626506 [2022-12-05 18:45:39,509 INFO L175 Difference]: Start difference. First operand has 448 places, 352 transitions, 1200 flow. Second operand 18 states and 4914 transitions. [2022-12-05 18:45:39,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 428 transitions, 1838 flow [2022-12-05 18:45:39,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 428 transitions, 1758 flow, removed 19 selfloop flow, removed 14 redundant places. [2022-12-05 18:45:39,529 INFO L231 Difference]: Finished difference. Result has 451 places, 332 transitions, 999 flow [2022-12-05 18:45:39,529 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=999, PETRI_PLACES=451, PETRI_TRANSITIONS=332} [2022-12-05 18:45:39,530 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 133 predicate places. [2022-12-05 18:45:39,530 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 332 transitions, 999 flow [2022-12-05 18:45:39,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 268.3125) internal successors, (4293), 16 states have internal predecessors, (4293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:39,530 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:39,531 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:39,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-05 18:45:39,531 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:39,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1280417178, now seen corresponding path program 1 times [2022-12-05 18:45:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:39,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981959933] [2022-12-05 18:45:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:39,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:40,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:40,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981959933] [2022-12-05 18:45:40,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981959933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:40,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:40,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-05 18:45:40,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613374333] [2022-12-05 18:45:40,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:40,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:45:40,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:40,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:45:40,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-12-05 18:45:40,453 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 332 [2022-12-05 18:45:40,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 332 transitions, 999 flow. Second operand has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:40,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:40,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 332 [2022-12-05 18:45:40,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:41,657 INFO L130 PetriNetUnfolder]: 634/3252 cut-off events. [2022-12-05 18:45:41,657 INFO L131 PetriNetUnfolder]: For 5909/6004 co-relation queries the response was YES. [2022-12-05 18:45:41,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6440 conditions, 3252 events. 634/3252 cut-off events. For 5909/6004 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 26156 event pairs, 175 based on Foata normal form. 20/3165 useless extension candidates. Maximal degree in co-relation 6386. Up to 553 conditions per place. [2022-12-05 18:45:41,681 INFO L137 encePairwiseOnDemand]: 315/332 looper letters, 60 selfloop transitions, 9 changer transitions 80/402 dead transitions. [2022-12-05 18:45:41,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 402 transitions, 1684 flow [2022-12-05 18:45:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-05 18:45:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-05 18:45:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6237 transitions. [2022-12-05 18:45:41,684 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8167888947092719 [2022-12-05 18:45:41,684 INFO L175 Difference]: Start difference. First operand has 451 places, 332 transitions, 999 flow. Second operand 23 states and 6237 transitions. [2022-12-05 18:45:41,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 402 transitions, 1684 flow [2022-12-05 18:45:41,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 402 transitions, 1557 flow, removed 31 selfloop flow, removed 30 redundant places. [2022-12-05 18:45:41,695 INFO L231 Difference]: Finished difference. Result has 430 places, 318 transitions, 789 flow [2022-12-05 18:45:41,696 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=789, PETRI_PLACES=430, PETRI_TRANSITIONS=318} [2022-12-05 18:45:41,696 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 112 predicate places. [2022-12-05 18:45:41,696 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 318 transitions, 789 flow [2022-12-05 18:45:41,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 268.11764705882354) internal successors, (4558), 17 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:41,697 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:41,697 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:41,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-05 18:45:41,697 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:45:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1828614718, now seen corresponding path program 2 times [2022-12-05 18:45:41,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:41,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360773321] [2022-12-05 18:45:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:41,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:42,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:42,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360773321] [2022-12-05 18:45:42,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360773321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:42,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:42,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-05 18:45:42,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101039154] [2022-12-05 18:45:42,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:42,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:45:42,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:42,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:45:42,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:45:42,417 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 332 [2022-12-05 18:45:42,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 318 transitions, 789 flow. Second operand has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:42,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:42,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 332 [2022-12-05 18:45:42,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:43,202 INFO L130 PetriNetUnfolder]: 270/1444 cut-off events. [2022-12-05 18:45:43,202 INFO L131 PetriNetUnfolder]: For 2816/2880 co-relation queries the response was YES. [2022-12-05 18:45:43,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2677 conditions, 1444 events. 270/1444 cut-off events. For 2816/2880 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8448 event pairs, 78 based on Foata normal form. 2/1380 useless extension candidates. Maximal degree in co-relation 2631. Up to 212 conditions per place. [2022-12-05 18:45:43,209 INFO L137 encePairwiseOnDemand]: 319/332 looper letters, 0 selfloop transitions, 0 changer transitions 356/356 dead transitions. [2022-12-05 18:45:43,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 356 transitions, 1120 flow [2022-12-05 18:45:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-05 18:45:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-05 18:45:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 4107 transitions. [2022-12-05 18:45:43,212 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8246987951807229 [2022-12-05 18:45:43,212 INFO L175 Difference]: Start difference. First operand has 430 places, 318 transitions, 789 flow. Second operand 15 states and 4107 transitions. [2022-12-05 18:45:43,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 356 transitions, 1120 flow [2022-12-05 18:45:43,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 356 transitions, 1013 flow, removed 27 selfloop flow, removed 26 redundant places. [2022-12-05 18:45:43,217 INFO L231 Difference]: Finished difference. Result has 360 places, 0 transitions, 0 flow [2022-12-05 18:45:43,217 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=360, PETRI_TRANSITIONS=0} [2022-12-05 18:45:43,218 INFO L294 CegarLoopForPetriNet]: 318 programPoint places, 42 predicate places. [2022-12-05 18:45:43,218 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 0 transitions, 0 flow [2022-12-05 18:45:43,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.64285714285717) internal successors, (3789), 14 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:43,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 18:45:43,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 18:45:43,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 18:45:43,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-05 18:45:43,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-05 18:45:43,221 INFO L458 BasicCegarLoop]: Path program histogram: [16, 8, 2, 1, 1, 1] [2022-12-05 18:45:43,225 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:45:43,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:45:43,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:45:43 BasicIcfg [2022-12-05 18:45:43,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:45:43,228 INFO L158 Benchmark]: Toolchain (without parser) took 153103.48ms. Allocated memory was 200.3MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 149.3MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2022-12-05 18:45:43,228 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory is still 176.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:45:43,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5030.89ms. Allocated memory was 200.3MB in the beginning and 288.4MB in the end (delta: 88.1MB). Free memory was 149.3MB in the beginning and 168.6MB in the end (delta: -19.3MB). Peak memory consumption was 132.8MB. Max. memory is 8.0GB. [2022-12-05 18:45:43,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.80ms. Allocated memory is still 288.4MB. Free memory was 168.6MB in the beginning and 159.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-12-05 18:45:43,229 INFO L158 Benchmark]: Boogie Preprocessor took 75.40ms. Allocated memory is still 288.4MB. Free memory was 159.2MB in the beginning and 155.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-05 18:45:43,229 INFO L158 Benchmark]: RCFGBuilder took 964.88ms. Allocated memory is still 288.4MB. Free memory was 155.0MB in the beginning and 209.0MB in the end (delta: -54.0MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-12-05 18:45:43,229 INFO L158 Benchmark]: TraceAbstraction took 146902.62ms. Allocated memory was 288.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 208.5MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2022-12-05 18:45:43,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory is still 176.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5030.89ms. Allocated memory was 200.3MB in the beginning and 288.4MB in the end (delta: 88.1MB). Free memory was 149.3MB in the beginning and 168.6MB in the end (delta: -19.3MB). Peak memory consumption was 132.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 123.80ms. Allocated memory is still 288.4MB. Free memory was 168.6MB in the beginning and 159.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 75.40ms. Allocated memory is still 288.4MB. Free memory was 159.2MB in the beginning and 155.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 964.88ms. Allocated memory is still 288.4MB. Free memory was 155.0MB in the beginning and 209.0MB in the end (delta: -54.0MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 146902.62ms. Allocated memory was 288.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 208.5MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 448 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 146.7s, OverallIterations: 29, TraceHistogramMax: 1, PathProgramHistogramMax: 16, EmptinessCheckTime: 0.0s, AutomataDifference: 114.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8691 SdHoareTripleChecker+Valid, 13.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8691 mSDsluCounter, 20493 SdHoareTripleChecker+Invalid, 11.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18101 mSDsCounter, 389 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25281 IncrementalHoareTripleChecker+Invalid, 25670 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 389 mSolverCounterUnsat, 2392 mSDtfsCounter, 25281 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1286 GetRequests, 108 SyntacticMatches, 3 SemanticMatches, 1175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9559 ImplicationChecksByTransitivity, 26.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6336occurred in iteration=12, InterpolantAutomatonStates: 860, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 29.3s InterpolantComputationTime, 6721 NumberOfCodeBlocks, 6721 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 6692 ConstructedInterpolants, 0 QuantifiedInterpolants, 52244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:45:43,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...