/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:29:40,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:29:40,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:29:40,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:29:40,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:29:40,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:29:40,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:29:40,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:29:40,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:29:40,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:29:40,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:29:40,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:29:40,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:29:40,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:29:40,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:29:40,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:29:40,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:29:40,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:29:40,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:29:40,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:29:40,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:29:40,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:29:40,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:29:40,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:29:40,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:29:40,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:29:40,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:29:40,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:29:40,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:29:40,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:29:40,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:29:40,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:29:40,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:29:40,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:29:40,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:29:40,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:29:40,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:29:40,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:29:40,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:29:40,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:29:40,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:29:40,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:29:40,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:29:40,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:29:40,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:29:40,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:29:40,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:29:40,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:29:40,304 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:29:40,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:29:40,304 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:29:40,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:29:40,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:29:40,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:29:40,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:29:40,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:29:40,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:29:40,306 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:29:40,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:29:40,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:29:40,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:29:40,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:29:40,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:29:40,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:29:40,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:29:40,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:29:40,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:29:40,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:29:40,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:29:40,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:29:40,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:29:40,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:29:40,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:29:40,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:29:40,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:29:40,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:29:40,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:29:40,612 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:29:40,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2022-12-05 20:29:41,623 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:29:42,052 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:29:42,053 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2022-12-05 20:29:42,086 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3b8bb1da/6348c941bad44f29a79cbcc7fa319949/FLAG216a5bdfa [2022-12-05 20:29:42,101 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3b8bb1da/6348c941bad44f29a79cbcc7fa319949 [2022-12-05 20:29:42,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:29:42,104 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:29:42,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:29:42,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:29:42,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:29:42,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:29:42" (1/1) ... [2022-12-05 20:29:42,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab69060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:42, skipping insertion in model container [2022-12-05 20:29:42,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:29:42" (1/1) ... [2022-12-05 20:29:42,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:29:42,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:29:42,448 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2022-12-05 20:29:42,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:42,974 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:42,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:43,541 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:29:43,546 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:43,552 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:43,562 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:43,695 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:43,702 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:43,795 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:29:44,050 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:44,061 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:44,165 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:29:44,170 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:29:44,612 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:29:44,616 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:29:44,621 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:29:44,774 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:29:44,774 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:44,779 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:29:44,779 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:44,981 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:29:45,015 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:29:45,247 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:29:45,253 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:29:45,509 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:29:45,752 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:29:45,753 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:29:45,753 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:29:46,749 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:29:46,750 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:46,752 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:46,755 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:46,758 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:47,098 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 20:29:47,105 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 20:29:47,112 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 20:29:47,119 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 20:29:47,120 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 20:29:47,122 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 20:29:47,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:29:47,155 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:29:47,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2022-12-05 20:29:47,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,188 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:47,190 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:47,198 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:29:47,199 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:47,199 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:47,199 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:47,202 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:47,203 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:47,204 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:29:47,211 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:47,212 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:47,213 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:29:47,214 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:29:47,222 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:29:47,222 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:29:47,223 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:29:47,226 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:29:47,226 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:47,226 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:29:47,226 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:47,236 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:29:47,238 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:29:47,243 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:29:47,244 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:29:47,248 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:29:47,251 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:29:47,252 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:29:47,252 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:29:47,352 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:29:47,353 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:47,354 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:47,358 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:47,360 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:47,390 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 20:29:47,392 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 20:29:47,392 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 20:29:47,394 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 20:29:47,394 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 20:29:47,394 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 20:29:47,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:29:47,745 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:29:47,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47 WrapperNode [2022-12-05 20:29:47,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:29:47,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:29:47,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:29:47,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:29:47,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,859 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 348 [2022-12-05 20:29:47,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:29:47,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:29:47,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:29:47,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:29:47,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,885 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:29:47,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:29:47,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:29:47,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:29:47,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (1/1) ... [2022-12-05 20:29:47,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:29:47,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:29:47,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:29:48,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:29:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:29:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 20:29:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:29:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:29:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:29:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 20:29:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:29:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:29:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-05 20:29:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-05 20:29:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:29:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 20:29:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-05 20:29:48,040 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-05 20:29:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:29:48,041 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:29:48,465 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:29:48,466 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:29:48,825 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:29:48,832 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:29:48,832 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-05 20:29:48,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:29:48 BoogieIcfgContainer [2022-12-05 20:29:48,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:29:48,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:29:48,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:29:48,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:29:48,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:29:42" (1/3) ... [2022-12-05 20:29:48,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa02319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:29:48, skipping insertion in model container [2022-12-05 20:29:48,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:47" (2/3) ... [2022-12-05 20:29:48,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa02319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:29:48, skipping insertion in model container [2022-12-05 20:29:48,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:29:48" (3/3) ... [2022-12-05 20:29:48,840 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2022-12-05 20:29:48,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:29:48,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 20:29:48,854 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:29:48,923 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:29:48,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 377 transitions, 770 flow [2022-12-05 20:29:49,033 INFO L130 PetriNetUnfolder]: 15/375 cut-off events. [2022-12-05 20:29:49,034 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:29:49,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 375 events. 15/375 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 493 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-05 20:29:49,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 377 transitions, 770 flow [2022-12-05 20:29:49,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 367 transitions, 743 flow [2022-12-05 20:29:49,046 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:29:49,057 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 359 places, 367 transitions, 743 flow [2022-12-05 20:29:49,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 367 transitions, 743 flow [2022-12-05 20:29:49,120 INFO L130 PetriNetUnfolder]: 15/367 cut-off events. [2022-12-05 20:29:49,120 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:29:49,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 367 events. 15/367 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 437 event pairs, 0 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-05 20:29:49,131 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 359 places, 367 transitions, 743 flow [2022-12-05 20:29:49,131 INFO L188 LiptonReduction]: Number of co-enabled transitions 17934 [2022-12-05 20:29:49,309 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,310 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,312 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,313 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,372 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,373 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,375 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,376 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,546 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,547 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,549 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,549 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,761 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,762 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,950 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,951 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:51,371 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:51,372 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:51,373 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:51,373 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:51,471 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:51,472 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:51,473 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:51,474 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-05 20:29:51,488 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:51,489 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:51,853 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:51,854 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:51,855 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:51,856 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:53,935 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:53,935 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:54,359 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:54,360 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:54,458 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:54,459 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:54,700 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:54,700 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:54,703 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:54,703 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-05 20:29:54,705 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:54,705 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2022-12-05 20:29:54,707 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:54,707 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:57,765 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:57,765 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:57,766 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:57,767 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:58,280 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:58,281 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:58,284 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:58,284 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:59,027 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,028 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:29:59,030 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,030 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2022-12-05 20:29:59,034 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,034 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:59,044 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,046 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:29:59,048 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,048 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2022-12-05 20:30:10,007 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:10,009 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:10,010 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:10,011 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:34,105 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:34,105 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:30:34,107 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:34,108 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2022-12-05 20:30:34,110 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:34,110 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:30:34,112 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:34,112 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:30:34,114 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:34,115 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2022-12-05 20:30:38,968 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:38,968 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:38,970 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:38,971 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:57,251 WARN L233 SmtUtils]: Spent 17.41s on a formula simplification that was a NOOP. DAG size: 472 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:12,766 WARN L233 SmtUtils]: Spent 15.51s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:26,447 WARN L233 SmtUtils]: Spent 13.68s on a formula simplification that was a NOOP. DAG size: 472 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:38,791 WARN L233 SmtUtils]: Spent 12.34s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:39,660 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:39,660 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:31:39,662 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:39,662 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:31:39,665 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:39,666 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:31:39,668 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:39,668 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:33:27,496 WARN L233 SmtUtils]: Spent 1.80m on a formula simplification. DAG size of input: 522 DAG size of output: 515 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:34:16,022 WARN L233 SmtUtils]: Spent 48.52s on a formula simplification that was a NOOP. DAG size: 501 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:35:15,992 WARN L233 SmtUtils]: Spent 59.97s on a formula simplification. DAG size of input: 534 DAG size of output: 525 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:36:01,880 WARN L233 SmtUtils]: Spent 45.88s on a formula simplification that was a NOOP. DAG size: 510 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:36:01,886 INFO L203 LiptonReduction]: Total number of compositions: 346 [2022-12-05 20:36:01,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:36:01,900 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;@2591af32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:36:01,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-05 20:36:01,909 INFO L130 PetriNetUnfolder]: 6/29 cut-off events. [2022-12-05 20:36:01,909 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:36:01,909 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:01,910 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:36:01,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:01,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:01,914 INFO L85 PathProgramCache]: Analyzing trace with hash 304517835, now seen corresponding path program 1 times [2022-12-05 20:36:01,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:01,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56451838] [2022-12-05 20:36:01,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:01,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:02,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:02,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56451838] [2022-12-05 20:36:02,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56451838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:02,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:02,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:36:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918377209] [2022-12-05 20:36:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:02,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:36:02,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:02,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:36:02,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:36:02,670 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:02,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:02,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:02,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:02,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:03,068 INFO L130 PetriNetUnfolder]: 728/1156 cut-off events. [2022-12-05 20:36:03,068 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-05 20:36:03,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2345 conditions, 1156 events. 728/1156 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5007 event pairs, 367 based on Foata normal form. 0/567 useless extension candidates. Maximal degree in co-relation 2105. Up to 867 conditions per place. [2022-12-05 20:36:03,073 INFO L137 encePairwiseOnDemand]: 32/39 looper letters, 44 selfloop transitions, 4 changer transitions 10/59 dead transitions. [2022-12-05 20:36:03,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 59 transitions, 249 flow [2022-12-05 20:36:03,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:36:03,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:36:03,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-12-05 20:36:03,082 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-05 20:36:03,083 INFO L175 Difference]: Start difference. First operand has 38 places, 39 transitions, 87 flow. Second operand 3 states and 65 transitions. [2022-12-05 20:36:03,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 59 transitions, 249 flow [2022-12-05 20:36:03,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 59 transitions, 241 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:36:03,088 INFO L231 Difference]: Finished difference. Result has 37 places, 40 transitions, 108 flow [2022-12-05 20:36:03,089 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=37, PETRI_TRANSITIONS=40} [2022-12-05 20:36:03,091 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2022-12-05 20:36:03,092 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 40 transitions, 108 flow [2022-12-05 20:36:03,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:03,092 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:03,092 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:03,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:36:03,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:03,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:03,098 INFO L85 PathProgramCache]: Analyzing trace with hash 850121091, now seen corresponding path program 1 times [2022-12-05 20:36:03,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:03,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807240606] [2022-12-05 20:36:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:03,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:03,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:03,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807240606] [2022-12-05 20:36:03,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807240606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:03,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:03,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:36:03,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059400898] [2022-12-05 20:36:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:03,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:36:03,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:03,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:36:03,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:36:03,581 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:03,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 40 transitions, 108 flow. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:03,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:03,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:03,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:04,012 INFO L130 PetriNetUnfolder]: 771/1267 cut-off events. [2022-12-05 20:36:04,013 INFO L131 PetriNetUnfolder]: For 177/177 co-relation queries the response was YES. [2022-12-05 20:36:04,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2719 conditions, 1267 events. 771/1267 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6578 event pairs, 75 based on Foata normal form. 19/746 useless extension candidates. Maximal degree in co-relation 2134. Up to 747 conditions per place. [2022-12-05 20:36:04,016 INFO L137 encePairwiseOnDemand]: 29/39 looper letters, 40 selfloop transitions, 10 changer transitions 28/79 dead transitions. [2022-12-05 20:36:04,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 79 transitions, 357 flow [2022-12-05 20:36:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:36:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:36:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2022-12-05 20:36:04,019 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4205128205128205 [2022-12-05 20:36:04,019 INFO L175 Difference]: Start difference. First operand has 37 places, 40 transitions, 108 flow. Second operand 5 states and 82 transitions. [2022-12-05 20:36:04,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 79 transitions, 357 flow [2022-12-05 20:36:04,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 79 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:36:04,022 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 131 flow [2022-12-05 20:36:04,022 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2022-12-05 20:36:04,023 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2022-12-05 20:36:04,023 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 131 flow [2022-12-05 20:36:04,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:04,023 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:04,023 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:04,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:36:04,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:04,026 INFO L85 PathProgramCache]: Analyzing trace with hash -579929923, now seen corresponding path program 1 times [2022-12-05 20:36:04,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:04,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388724645] [2022-12-05 20:36:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:04,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:04,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:04,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388724645] [2022-12-05 20:36:04,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388724645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:04,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:04,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:36:04,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26045650] [2022-12-05 20:36:04,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:04,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:36:04,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:04,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:36:04,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:36:04,306 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:04,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:04,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:04,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:04,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:04,598 INFO L130 PetriNetUnfolder]: 373/668 cut-off events. [2022-12-05 20:36:04,599 INFO L131 PetriNetUnfolder]: For 281/281 co-relation queries the response was YES. [2022-12-05 20:36:04,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 668 events. 373/668 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2804 event pairs, 158 based on Foata normal form. 0/522 useless extension candidates. Maximal degree in co-relation 726. Up to 388 conditions per place. [2022-12-05 20:36:04,600 INFO L137 encePairwiseOnDemand]: 34/39 looper letters, 25 selfloop transitions, 4 changer transitions 22/52 dead transitions. [2022-12-05 20:36:04,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 52 transitions, 293 flow [2022-12-05 20:36:04,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:36:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:36:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2022-12-05 20:36:04,601 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.42735042735042733 [2022-12-05 20:36:04,601 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 131 flow. Second operand 3 states and 50 transitions. [2022-12-05 20:36:04,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 52 transitions, 293 flow [2022-12-05 20:36:04,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:36:04,603 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 120 flow [2022-12-05 20:36:04,603 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2022-12-05 20:36:04,603 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2022-12-05 20:36:04,603 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 120 flow [2022-12-05 20:36:04,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:04,604 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:04,604 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:04,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:36:04,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:04,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:04,604 INFO L85 PathProgramCache]: Analyzing trace with hash -988471101, now seen corresponding path program 1 times [2022-12-05 20:36:04,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:04,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678524416] [2022-12-05 20:36:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:05,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:05,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678524416] [2022-12-05 20:36:05,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678524416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:05,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:05,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:05,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559689195] [2022-12-05 20:36:05,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:05,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:36:05,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:05,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:36:05,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:36:05,433 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:05,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 120 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:05,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:05,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:05,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:05,966 INFO L130 PetriNetUnfolder]: 232/456 cut-off events. [2022-12-05 20:36:05,966 INFO L131 PetriNetUnfolder]: For 564/564 co-relation queries the response was YES. [2022-12-05 20:36:05,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1280 conditions, 456 events. 232/456 cut-off events. For 564/564 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2069 event pairs, 25 based on Foata normal form. 6/438 useless extension candidates. Maximal degree in co-relation 1028. Up to 208 conditions per place. [2022-12-05 20:36:05,968 INFO L137 encePairwiseOnDemand]: 31/39 looper letters, 34 selfloop transitions, 9 changer transitions 16/60 dead transitions. [2022-12-05 20:36:05,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 60 transitions, 355 flow [2022-12-05 20:36:05,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:36:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:36:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2022-12-05 20:36:05,969 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.27350427350427353 [2022-12-05 20:36:05,969 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 120 flow. Second operand 6 states and 64 transitions. [2022-12-05 20:36:05,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 60 transitions, 355 flow [2022-12-05 20:36:05,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 60 transitions, 327 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:36:05,971 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 153 flow [2022-12-05 20:36:05,971 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=153, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2022-12-05 20:36:05,972 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2022-12-05 20:36:05,972 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 153 flow [2022-12-05 20:36:05,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:05,972 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:05,972 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:05,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:36:05,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:05,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:05,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1941252809, now seen corresponding path program 2 times [2022-12-05 20:36:05,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:05,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29687917] [2022-12-05 20:36:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:06,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:06,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:06,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29687917] [2022-12-05 20:36:06,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29687917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:06,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:06,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:06,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771116678] [2022-12-05 20:36:06,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:06,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:36:06,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:06,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:36:06,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:36:06,648 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:06,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 153 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:06,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:06,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:06,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:07,306 INFO L130 PetriNetUnfolder]: 338/660 cut-off events. [2022-12-05 20:36:07,306 INFO L131 PetriNetUnfolder]: For 760/760 co-relation queries the response was YES. [2022-12-05 20:36:07,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1996 conditions, 660 events. 338/660 cut-off events. For 760/760 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3258 event pairs, 40 based on Foata normal form. 20/646 useless extension candidates. Maximal degree in co-relation 1465. Up to 223 conditions per place. [2022-12-05 20:36:07,309 INFO L137 encePairwiseOnDemand]: 28/39 looper letters, 35 selfloop transitions, 28 changer transitions 28/92 dead transitions. [2022-12-05 20:36:07,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 92 transitions, 586 flow [2022-12-05 20:36:07,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:36:07,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:36:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 98 transitions. [2022-12-05 20:36:07,310 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2512820512820513 [2022-12-05 20:36:07,310 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 153 flow. Second operand 10 states and 98 transitions. [2022-12-05 20:36:07,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 92 transitions, 586 flow [2022-12-05 20:36:07,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 92 transitions, 566 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 20:36:07,313 INFO L231 Difference]: Finished difference. Result has 50 places, 49 transitions, 363 flow [2022-12-05 20:36:07,313 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=363, PETRI_PLACES=50, PETRI_TRANSITIONS=49} [2022-12-05 20:36:07,314 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2022-12-05 20:36:07,314 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 363 flow [2022-12-05 20:36:07,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:07,314 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:07,314 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:07,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:36:07,314 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:07,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:07,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1025055390, now seen corresponding path program 1 times [2022-12-05 20:36:07,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:07,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187866460] [2022-12-05 20:36:07,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:07,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:08,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:08,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187866460] [2022-12-05 20:36:08,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187866460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:08,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:08,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:08,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498050914] [2022-12-05 20:36:08,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:08,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:36:08,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:36:08,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:36:08,021 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:08,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 363 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:08,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:08,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:08,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:08,611 INFO L130 PetriNetUnfolder]: 396/762 cut-off events. [2022-12-05 20:36:08,611 INFO L131 PetriNetUnfolder]: For 1790/1790 co-relation queries the response was YES. [2022-12-05 20:36:08,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2780 conditions, 762 events. 396/762 cut-off events. For 1790/1790 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3850 event pairs, 76 based on Foata normal form. 22/754 useless extension candidates. Maximal degree in co-relation 2368. Up to 371 conditions per place. [2022-12-05 20:36:08,614 INFO L137 encePairwiseOnDemand]: 28/39 looper letters, 53 selfloop transitions, 38 changer transitions 17/109 dead transitions. [2022-12-05 20:36:08,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 109 transitions, 947 flow [2022-12-05 20:36:08,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:36:08,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:36:08,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 89 transitions. [2022-12-05 20:36:08,615 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2282051282051282 [2022-12-05 20:36:08,615 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 363 flow. Second operand 10 states and 89 transitions. [2022-12-05 20:36:08,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 109 transitions, 947 flow [2022-12-05 20:36:08,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 109 transitions, 829 flow, removed 41 selfloop flow, removed 2 redundant places. [2022-12-05 20:36:08,621 INFO L231 Difference]: Finished difference. Result has 62 places, 73 transitions, 614 flow [2022-12-05 20:36:08,621 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=614, PETRI_PLACES=62, PETRI_TRANSITIONS=73} [2022-12-05 20:36:08,621 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 24 predicate places. [2022-12-05 20:36:08,621 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 73 transitions, 614 flow [2022-12-05 20:36:08,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:08,622 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:08,622 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:08,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:36:08,622 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:08,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:08,622 INFO L85 PathProgramCache]: Analyzing trace with hash 389143864, now seen corresponding path program 2 times [2022-12-05 20:36:08,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:08,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879931248] [2022-12-05 20:36:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:08,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:09,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:09,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:09,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879931248] [2022-12-05 20:36:09,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879931248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:09,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:09,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:09,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413115299] [2022-12-05 20:36:09,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:09,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:36:09,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:09,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:36:09,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:36:09,208 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:09,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 73 transitions, 614 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:09,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:09,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:09,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:09,913 INFO L130 PetriNetUnfolder]: 561/1055 cut-off events. [2022-12-05 20:36:09,914 INFO L131 PetriNetUnfolder]: For 2758/2758 co-relation queries the response was YES. [2022-12-05 20:36:09,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 1055 events. 561/1055 cut-off events. For 2758/2758 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5683 event pairs, 64 based on Foata normal form. 14/1021 useless extension candidates. Maximal degree in co-relation 3594. Up to 325 conditions per place. [2022-12-05 20:36:09,918 INFO L137 encePairwiseOnDemand]: 28/39 looper letters, 82 selfloop transitions, 40 changer transitions 27/150 dead transitions. [2022-12-05 20:36:09,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 150 transitions, 1385 flow [2022-12-05 20:36:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:36:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:36:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 103 transitions. [2022-12-05 20:36:09,919 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2641025641025641 [2022-12-05 20:36:09,920 INFO L175 Difference]: Start difference. First operand has 62 places, 73 transitions, 614 flow. Second operand 10 states and 103 transitions. [2022-12-05 20:36:09,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 150 transitions, 1385 flow [2022-12-05 20:36:09,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 150 transitions, 1254 flow, removed 52 selfloop flow, removed 1 redundant places. [2022-12-05 20:36:09,934 INFO L231 Difference]: Finished difference. Result has 76 places, 93 transitions, 876 flow [2022-12-05 20:36:09,934 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=876, PETRI_PLACES=76, PETRI_TRANSITIONS=93} [2022-12-05 20:36:09,934 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 38 predicate places. [2022-12-05 20:36:09,934 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 93 transitions, 876 flow [2022-12-05 20:36:09,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:09,935 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:09,935 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:09,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:36:09,935 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:09,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:09,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2001538762, now seen corresponding path program 3 times [2022-12-05 20:36:09,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:09,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671001898] [2022-12-05 20:36:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:09,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:10,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:10,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671001898] [2022-12-05 20:36:10,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671001898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:10,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:10,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:10,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013338439] [2022-12-05 20:36:10,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:10,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:36:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:36:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:36:10,543 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:10,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 93 transitions, 876 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:10,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:10,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:10,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:11,279 INFO L130 PetriNetUnfolder]: 588/1108 cut-off events. [2022-12-05 20:36:11,279 INFO L131 PetriNetUnfolder]: For 3330/3330 co-relation queries the response was YES. [2022-12-05 20:36:11,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4589 conditions, 1108 events. 588/1108 cut-off events. For 3330/3330 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6109 event pairs, 50 based on Foata normal form. 14/1072 useless extension candidates. Maximal degree in co-relation 4495. Up to 285 conditions per place. [2022-12-05 20:36:11,284 INFO L137 encePairwiseOnDemand]: 28/39 looper letters, 86 selfloop transitions, 47 changer transitions 26/160 dead transitions. [2022-12-05 20:36:11,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 160 transitions, 1562 flow [2022-12-05 20:36:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 20:36:11,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 20:36:11,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 105 transitions. [2022-12-05 20:36:11,286 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.24475524475524477 [2022-12-05 20:36:11,286 INFO L175 Difference]: Start difference. First operand has 76 places, 93 transitions, 876 flow. Second operand 11 states and 105 transitions. [2022-12-05 20:36:11,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 160 transitions, 1562 flow [2022-12-05 20:36:11,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 160 transitions, 1536 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-12-05 20:36:11,316 INFO L231 Difference]: Finished difference. Result has 88 places, 103 transitions, 1122 flow [2022-12-05 20:36:11,316 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1122, PETRI_PLACES=88, PETRI_TRANSITIONS=103} [2022-12-05 20:36:11,318 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 50 predicate places. [2022-12-05 20:36:11,318 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 103 transitions, 1122 flow [2022-12-05 20:36:11,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:11,318 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:11,318 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:11,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:36:11,318 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:11,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:11,319 INFO L85 PathProgramCache]: Analyzing trace with hash -376780205, now seen corresponding path program 3 times [2022-12-05 20:36:11,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:11,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106094286] [2022-12-05 20:36:11,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:11,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:11,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:11,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106094286] [2022-12-05 20:36:11,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106094286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:11,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:11,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:11,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709458586] [2022-12-05 20:36:11,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:11,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:36:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:11,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:36:11,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:36:11,951 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:11,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 103 transitions, 1122 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:11,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:11,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:11,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:12,731 INFO L130 PetriNetUnfolder]: 590/1114 cut-off events. [2022-12-05 20:36:12,731 INFO L131 PetriNetUnfolder]: For 4588/4588 co-relation queries the response was YES. [2022-12-05 20:36:12,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5161 conditions, 1114 events. 590/1114 cut-off events. For 4588/4588 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6129 event pairs, 48 based on Foata normal form. 14/1076 useless extension candidates. Maximal degree in co-relation 4664. Up to 266 conditions per place. [2022-12-05 20:36:12,737 INFO L137 encePairwiseOnDemand]: 26/39 looper letters, 94 selfloop transitions, 43 changer transitions 20/158 dead transitions. [2022-12-05 20:36:12,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 158 transitions, 1758 flow [2022-12-05 20:36:12,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 20:36:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 20:36:12,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 100 transitions. [2022-12-05 20:36:12,739 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2564102564102564 [2022-12-05 20:36:12,739 INFO L175 Difference]: Start difference. First operand has 88 places, 103 transitions, 1122 flow. Second operand 10 states and 100 transitions. [2022-12-05 20:36:12,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 158 transitions, 1758 flow [2022-12-05 20:36:12,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 158 transitions, 1679 flow, removed 22 selfloop flow, removed 4 redundant places. [2022-12-05 20:36:12,756 INFO L231 Difference]: Finished difference. Result has 97 places, 114 transitions, 1301 flow [2022-12-05 20:36:12,756 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1049, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1301, PETRI_PLACES=97, PETRI_TRANSITIONS=114} [2022-12-05 20:36:12,756 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 59 predicate places. [2022-12-05 20:36:12,757 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 114 transitions, 1301 flow [2022-12-05 20:36:12,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:12,758 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:12,758 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:12,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 20:36:12,758 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:12,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:12,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1566368951, now seen corresponding path program 4 times [2022-12-05 20:36:12,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:12,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494555156] [2022-12-05 20:36:12,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:12,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:13,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:13,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:13,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494555156] [2022-12-05 20:36:13,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494555156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:13,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:13,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:36:13,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444581390] [2022-12-05 20:36:13,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:13,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:36:13,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:13,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:36:13,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:36:13,515 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:13,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 114 transitions, 1301 flow. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:13,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:13,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:13,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:14,115 INFO L130 PetriNetUnfolder]: 567/1057 cut-off events. [2022-12-05 20:36:14,115 INFO L131 PetriNetUnfolder]: For 5144/5144 co-relation queries the response was YES. [2022-12-05 20:36:14,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5195 conditions, 1057 events. 567/1057 cut-off events. For 5144/5144 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5638 event pairs, 61 based on Foata normal form. 6/1013 useless extension candidates. Maximal degree in co-relation 5138. Up to 482 conditions per place. [2022-12-05 20:36:14,123 INFO L137 encePairwiseOnDemand]: 31/39 looper letters, 92 selfloop transitions, 33 changer transitions 15/141 dead transitions. [2022-12-05 20:36:14,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 141 transitions, 1719 flow [2022-12-05 20:36:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:36:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:36:14,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 64 transitions. [2022-12-05 20:36:14,124 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.23443223443223443 [2022-12-05 20:36:14,124 INFO L175 Difference]: Start difference. First operand has 97 places, 114 transitions, 1301 flow. Second operand 7 states and 64 transitions. [2022-12-05 20:36:14,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 141 transitions, 1719 flow [2022-12-05 20:36:14,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 141 transitions, 1681 flow, removed 17 selfloop flow, removed 2 redundant places. [2022-12-05 20:36:14,147 INFO L231 Difference]: Finished difference. Result has 103 places, 116 transitions, 1394 flow [2022-12-05 20:36:14,148 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1394, PETRI_PLACES=103, PETRI_TRANSITIONS=116} [2022-12-05 20:36:14,149 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 65 predicate places. [2022-12-05 20:36:14,149 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 116 transitions, 1394 flow [2022-12-05 20:36:14,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:14,149 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:14,149 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:14,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 20:36:14,149 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:14,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:14,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2009400226, now seen corresponding path program 4 times [2022-12-05 20:36:14,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:14,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105531418] [2022-12-05 20:36:14,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:14,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:15,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:15,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105531418] [2022-12-05 20:36:15,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105531418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:15,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:15,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 20:36:15,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65483925] [2022-12-05 20:36:15,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:15,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 20:36:15,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:15,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 20:36:15,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-05 20:36:15,132 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:15,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 116 transitions, 1394 flow. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:15,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:15,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:15,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:15,971 INFO L130 PetriNetUnfolder]: 618/1163 cut-off events. [2022-12-05 20:36:15,972 INFO L131 PetriNetUnfolder]: For 7648/7648 co-relation queries the response was YES. [2022-12-05 20:36:15,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5941 conditions, 1163 events. 618/1163 cut-off events. For 7648/7648 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6362 event pairs, 83 based on Foata normal form. 14/1125 useless extension candidates. Maximal degree in co-relation 5672. Up to 590 conditions per place. [2022-12-05 20:36:15,979 INFO L137 encePairwiseOnDemand]: 28/39 looper letters, 72 selfloop transitions, 72 changer transitions 15/160 dead transitions. [2022-12-05 20:36:15,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 160 transitions, 2059 flow [2022-12-05 20:36:15,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 20:36:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 20:36:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 87 transitions. [2022-12-05 20:36:15,980 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.20279720279720279 [2022-12-05 20:36:15,980 INFO L175 Difference]: Start difference. First operand has 103 places, 116 transitions, 1394 flow. Second operand 11 states and 87 transitions. [2022-12-05 20:36:15,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 160 transitions, 2059 flow [2022-12-05 20:36:16,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 160 transitions, 1985 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-05 20:36:16,003 INFO L231 Difference]: Finished difference. Result has 113 places, 129 transitions, 1727 flow [2022-12-05 20:36:16,003 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1330, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1727, PETRI_PLACES=113, PETRI_TRANSITIONS=129} [2022-12-05 20:36:16,004 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 75 predicate places. [2022-12-05 20:36:16,004 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 129 transitions, 1727 flow [2022-12-05 20:36:16,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:16,004 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:16,004 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:16,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 20:36:16,004 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:16,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:16,004 INFO L85 PathProgramCache]: Analyzing trace with hash 483878263, now seen corresponding path program 5 times [2022-12-05 20:36:16,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:16,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278717061] [2022-12-05 20:36:16,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:16,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:17,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:17,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278717061] [2022-12-05 20:36:17,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278717061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:17,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:17,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:17,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028990858] [2022-12-05 20:36:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:17,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:36:17,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:17,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:36:17,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:36:17,074 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:17,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 129 transitions, 1727 flow. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:17,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:17,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:17,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:17,858 INFO L130 PetriNetUnfolder]: 636/1201 cut-off events. [2022-12-05 20:36:17,858 INFO L131 PetriNetUnfolder]: For 8435/8435 co-relation queries the response was YES. [2022-12-05 20:36:17,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6466 conditions, 1201 events. 636/1201 cut-off events. For 8435/8435 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6578 event pairs, 48 based on Foata normal form. 14/1161 useless extension candidates. Maximal degree in co-relation 6173. Up to 346 conditions per place. [2022-12-05 20:36:17,865 INFO L137 encePairwiseOnDemand]: 25/39 looper letters, 106 selfloop transitions, 52 changer transitions 25/184 dead transitions. [2022-12-05 20:36:17,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 184 transitions, 2447 flow [2022-12-05 20:36:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 20:36:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 20:36:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 106 transitions. [2022-12-05 20:36:17,866 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2264957264957265 [2022-12-05 20:36:17,866 INFO L175 Difference]: Start difference. First operand has 113 places, 129 transitions, 1727 flow. Second operand 12 states and 106 transitions. [2022-12-05 20:36:17,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 184 transitions, 2447 flow [2022-12-05 20:36:17,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 184 transitions, 2376 flow, removed 31 selfloop flow, removed 3 redundant places. [2022-12-05 20:36:17,897 INFO L231 Difference]: Finished difference. Result has 125 places, 136 transitions, 1917 flow [2022-12-05 20:36:17,897 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1665, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1917, PETRI_PLACES=125, PETRI_TRANSITIONS=136} [2022-12-05 20:36:17,898 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 87 predicate places. [2022-12-05 20:36:17,898 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 136 transitions, 1917 flow [2022-12-05 20:36:17,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:17,898 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:17,898 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:17,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-05 20:36:17,899 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:17,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:17,899 INFO L85 PathProgramCache]: Analyzing trace with hash -577876730, now seen corresponding path program 1 times [2022-12-05 20:36:17,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:17,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592644539] [2022-12-05 20:36:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:17,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:18,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:18,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592644539] [2022-12-05 20:36:18,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592644539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:18,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:18,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:36:18,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555290293] [2022-12-05 20:36:18,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:18,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:36:18,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:18,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:36:18,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:36:18,466 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-05 20:36:18,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 136 transitions, 1917 flow. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:18,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:18,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-05 20:36:18,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:19,219 INFO L130 PetriNetUnfolder]: 814/1594 cut-off events. [2022-12-05 20:36:19,219 INFO L131 PetriNetUnfolder]: For 12731/12731 co-relation queries the response was YES. [2022-12-05 20:36:19,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8753 conditions, 1594 events. 814/1594 cut-off events. For 12731/12731 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9807 event pairs, 184 based on Foata normal form. 8/1534 useless extension candidates. Maximal degree in co-relation 8462. Up to 454 conditions per place. [2022-12-05 20:36:19,229 INFO L137 encePairwiseOnDemand]: 31/39 looper letters, 101 selfloop transitions, 74 changer transitions 22/198 dead transitions. [2022-12-05 20:36:19,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 198 transitions, 2892 flow [2022-12-05 20:36:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:36:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:36:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 81 transitions. [2022-12-05 20:36:19,230 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.25961538461538464 [2022-12-05 20:36:19,230 INFO L175 Difference]: Start difference. First operand has 125 places, 136 transitions, 1917 flow. Second operand 8 states and 81 transitions. [2022-12-05 20:36:19,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 198 transitions, 2892 flow [2022-12-05 20:36:19,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 198 transitions, 2798 flow, removed 20 selfloop flow, removed 5 redundant places. [2022-12-05 20:36:19,282 INFO L231 Difference]: Finished difference. Result has 130 places, 147 transitions, 2258 flow [2022-12-05 20:36:19,283 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1835, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2258, PETRI_PLACES=130, PETRI_TRANSITIONS=147} [2022-12-05 20:36:19,283 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 92 predicate places. [2022-12-05 20:36:19,283 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 147 transitions, 2258 flow [2022-12-05 20:36:19,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:36:19,283 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:19,283 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:19,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-05 20:36:19,284 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-05 20:36:19,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:19,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1998030186, now seen corresponding path program 1 times [2022-12-05 20:36:19,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:19,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113363602] [2022-12-05 20:36:19,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:19,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:20,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:36:20,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:20,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113363602] [2022-12-05 20:36:20,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113363602] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 20:36:20,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335462033] [2022-12-05 20:36:20,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:20,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:36:20,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:36:20,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 20:36:20,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 20:36:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:20,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-05 20:36:20,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-12-05 20:40:34,193 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 20:40:34,223 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 20:40:35,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-05 20:40:35,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown