/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:45:57,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:45:57,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:45:57,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:45:57,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:45:57,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:45:57,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:45:57,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:45:57,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:45:57,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:45:57,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:45:57,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:45:57,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:45:57,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:45:57,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:45:57,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:45:57,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:45:57,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:45:57,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:45:57,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:45:57,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:45:57,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:45:57,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:45:57,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:45:57,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:45:57,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:45:57,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:45:57,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:45:57,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:45:57,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:45:57,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:45:57,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:45:57,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:45:57,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:45:57,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:45:57,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:45:57,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:45:57,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:45:57,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:45:57,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:45:57,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:45:57,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:45:57,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:45:57,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:45:57,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:45:57,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:45:57,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:45:57,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:45:57,384 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:45:57,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:45:57,385 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:45:57,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:45:57,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:45:57,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:45:57,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:45:57,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:45:57,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:45:57,386 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:45:57,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:45:57,387 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:45:57,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:45:57,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:45:57,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:45:57,387 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:45:57,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:45:57,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:45:57,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:45:57,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:45:57,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:45:57,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:45:57,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:45:57,388 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:45:57,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:45:57,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:45:57,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:45:57,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:45:57,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:45:57,688 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:45:57,688 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:45:57,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-06 16:45:58,722 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:45:59,245 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:45:59,245 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-06 16:45:59,290 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b21bf615/20687ae86029406a935827d546b0d085/FLAGbb4b5e1fa [2022-12-06 16:45:59,303 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b21bf615/20687ae86029406a935827d546b0d085 [2022-12-06 16:45:59,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:45:59,306 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:45:59,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:45:59,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:45:59,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:45:59,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:45:59" (1/1) ... [2022-12-06 16:45:59,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc03f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:45:59, skipping insertion in model container [2022-12-06 16:45:59,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:45:59" (1/1) ... [2022-12-06 16:45:59,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:45:59,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:45:59,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-06 16:46:00,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:00,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:00,860 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:46:00,864 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:00,868 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:00,878 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:00,986 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:46:00,992 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:46:01,081 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:46:01,266 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:46:01,277 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:46:01,346 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:46:01,352 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:46:01,618 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:46:01,620 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:46:01,623 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:46:01,701 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:46:01,701 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:46:01,703 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:46:01,703 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:46:01,840 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:46:01,866 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:46:01,999 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:46:02,004 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:46:02,242 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:46:02,458 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:46:02,458 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:46:02,458 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:46:03,641 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:46:03,641 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:03,646 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:03,652 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:03,664 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:04,373 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-06 16:46:04,381 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-06 16:46:04,391 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-06 16:46:04,406 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-06 16:46:04,407 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-06 16:46:04,413 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-06 16:46:04,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:46:04,475 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:46:04,510 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-06 16:46:04,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:04,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:04,591 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:46:04,591 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:04,592 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:04,599 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:04,603 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:46:04,608 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:46:04,612 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:46:04,625 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:46:04,626 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:46:04,628 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:46:04,628 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:46:04,636 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:46:04,636 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:46:04,637 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:46:04,640 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:46:04,641 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:46:04,641 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:46:04,641 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:46:04,650 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:46:04,653 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:46:04,657 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:46:04,658 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:46:04,661 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:46:04,665 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:46:04,666 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:46:04,666 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:46:04,769 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:46:04,769 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:04,772 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:04,777 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:04,780 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:04,819 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-06 16:46:04,821 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-06 16:46:04,821 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-06 16:46:04,823 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-06 16:46:04,823 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-06 16:46:04,824 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-06 16:46:04,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:46:05,212 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:46:05,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05 WrapperNode [2022-12-06 16:46:05,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:46:05,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:46:05,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:46:05,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:46:05,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,377 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-06 16:46:05,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:46:05,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:46:05,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:46:05,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:46:05,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:46:05,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:46:05,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:46:05,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:46:05,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (1/1) ... [2022-12-06 16:46:05,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:46:05,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:46:05,446 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) [2022-12-06 16:46:05,469 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 [2022-12-06 16:46:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:46:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 16:46:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-06 16:46:05,488 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-06 16:46:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:46:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:46:05,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:46:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-06 16:46:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:46:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:46:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:46:05,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:46:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:46:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 16:46:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-06 16:46:05,497 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-06 16:46:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:46:05,498 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:46:05,958 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:46:05,959 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:46:06,285 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:46:06,314 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:46:06,314 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-06 16:46:06,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:46:06 BoogieIcfgContainer [2022-12-06 16:46:06,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:46:06,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:46:06,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:46:06,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:46:06,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:45:59" (1/3) ... [2022-12-06 16:46:06,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7786c6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:46:06, skipping insertion in model container [2022-12-06 16:46:06,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:05" (2/3) ... [2022-12-06 16:46:06,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7786c6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:46:06, skipping insertion in model container [2022-12-06 16:46:06,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:46:06" (3/3) ... [2022-12-06 16:46:06,323 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-06 16:46:06,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:46:06,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:46:06,338 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:46:06,425 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:46:06,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 331 transitions, 678 flow [2022-12-06 16:46:06,587 INFO L130 PetriNetUnfolder]: 11/329 cut-off events. [2022-12-06 16:46:06,588 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:46:06,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 329 events. 11/329 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 310 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-06 16:46:06,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 331 transitions, 678 flow [2022-12-06 16:46:06,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 321 transitions, 651 flow [2022-12-06 16:46:06,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:46:06,615 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;@1fdc089c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:46:06,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 16:46:06,684 INFO L130 PetriNetUnfolder]: 7/288 cut-off events. [2022-12-06 16:46:06,684 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:46:06,684 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:06,685 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:06,685 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:06,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:06,690 INFO L85 PathProgramCache]: Analyzing trace with hash 290203800, now seen corresponding path program 1 times [2022-12-06 16:46:06,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:06,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921389877] [2022-12-06 16:46:06,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:06,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:07,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:07,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921389877] [2022-12-06 16:46:07,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921389877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:07,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:07,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:46:07,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334878186] [2022-12-06 16:46:07,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:07,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:46:07,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:07,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:46:07,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:46:07,946 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 331 [2022-12-06 16:46:07,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 321 transitions, 651 flow. Second operand has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:07,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:07,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 331 [2022-12-06 16:46:07,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:08,624 INFO L130 PetriNetUnfolder]: 340/1892 cut-off events. [2022-12-06 16:46:08,624 INFO L131 PetriNetUnfolder]: For 72/74 co-relation queries the response was YES. [2022-12-06 16:46:08,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 1892 events. 340/1892 cut-off events. For 72/74 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 13367 event pairs, 128 based on Foata normal form. 8/1772 useless extension candidates. Maximal degree in co-relation 2180. Up to 320 conditions per place. [2022-12-06 16:46:08,641 INFO L137 encePairwiseOnDemand]: 318/331 looper letters, 62 selfloop transitions, 9 changer transitions 41/379 dead transitions. [2022-12-06 16:46:08,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 379 transitions, 1028 flow [2022-12-06 16:46:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:46:08,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:46:08,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3440 transitions. [2022-12-06 16:46:08,665 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8660624370594159 [2022-12-06 16:46:08,669 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 10 predicate places. [2022-12-06 16:46:08,669 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 379 transitions, 1028 flow [2022-12-06 16:46:08,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.0) internal successors, (1698), 6 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:08,670 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:08,671 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:08,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:46:08,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:08,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:08,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1231316228, now seen corresponding path program 1 times [2022-12-06 16:46:08,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:08,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842116110] [2022-12-06 16:46:08,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:08,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:09,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:09,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842116110] [2022-12-06 16:46:09,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842116110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:09,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:09,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:46:09,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269565298] [2022-12-06 16:46:09,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:09,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:46:09,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:09,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:46:09,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:46:09,803 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 331 [2022-12-06 16:46:09,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 379 transitions, 1028 flow. Second operand has 12 states, 12 states have (on average 255.16666666666666) internal successors, (3062), 12 states have internal predecessors, (3062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:09,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:09,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 331 [2022-12-06 16:46:09,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:10,728 INFO L130 PetriNetUnfolder]: 397/2427 cut-off events. [2022-12-06 16:46:10,729 INFO L131 PetriNetUnfolder]: For 280/751 co-relation queries the response was YES. [2022-12-06 16:46:10,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3798 conditions, 2427 events. 397/2427 cut-off events. For 280/751 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 19360 event pairs, 42 based on Foata normal form. 16/2296 useless extension candidates. Maximal degree in co-relation 3264. Up to 348 conditions per place. [2022-12-06 16:46:10,742 INFO L137 encePairwiseOnDemand]: 316/331 looper letters, 92 selfloop transitions, 15 changer transitions 92/441 dead transitions. [2022-12-06 16:46:10,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 441 transitions, 1702 flow [2022-12-06 16:46:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 16:46:10,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 16:46:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4638 transitions. [2022-12-06 16:46:10,752 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7784491440080564 [2022-12-06 16:46:10,753 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 27 predicate places. [2022-12-06 16:46:10,753 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 441 transitions, 1702 flow [2022-12-06 16:46:10,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 255.16666666666666) internal successors, (3062), 12 states have internal predecessors, (3062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:10,755 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:10,755 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:10,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:46:10,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:10,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:10,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1954184608, now seen corresponding path program 1 times [2022-12-06 16:46:10,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:10,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943684938] [2022-12-06 16:46:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:10,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:12,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:12,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943684938] [2022-12-06 16:46:12,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943684938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:12,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:12,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:46:12,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260994685] [2022-12-06 16:46:12,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:12,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:46:12,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:46:12,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:46:12,291 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-06 16:46:12,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 441 transitions, 1702 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:12,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:12,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-06 16:46:12,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:13,993 INFO L130 PetriNetUnfolder]: 1029/4499 cut-off events. [2022-12-06 16:46:13,993 INFO L131 PetriNetUnfolder]: For 1540/1599 co-relation queries the response was YES. [2022-12-06 16:46:14,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8792 conditions, 4499 events. 1029/4499 cut-off events. For 1540/1599 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 40007 event pairs, 87 based on Foata normal form. 16/4287 useless extension candidates. Maximal degree in co-relation 7794. Up to 622 conditions per place. [2022-12-06 16:46:14,016 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 104 selfloop transitions, 22 changer transitions 200/582 dead transitions. [2022-12-06 16:46:14,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 582 transitions, 2961 flow [2022-12-06 16:46:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 16:46:14,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 16:46:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 7415 transitions. [2022-12-06 16:46:14,031 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8296967662526575 [2022-12-06 16:46:14,033 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 53 predicate places. [2022-12-06 16:46:14,033 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 582 transitions, 2961 flow [2022-12-06 16:46:14,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:14,035 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:14,035 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:14,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:46:14,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:14,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1612135298, now seen corresponding path program 2 times [2022-12-06 16:46:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:14,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363385213] [2022-12-06 16:46:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:14,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:15,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:15,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363385213] [2022-12-06 16:46:15,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363385213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:15,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:15,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:46:15,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231019344] [2022-12-06 16:46:15,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:15,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:46:15,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:15,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:46:15,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:46:15,276 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-06 16:46:15,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 582 transitions, 2961 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:15,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:15,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-06 16:46:15,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:18,002 INFO L130 PetriNetUnfolder]: 1789/7643 cut-off events. [2022-12-06 16:46:18,002 INFO L131 PetriNetUnfolder]: For 4483/5802 co-relation queries the response was YES. [2022-12-06 16:46:18,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18274 conditions, 7643 events. 1789/7643 cut-off events. For 4483/5802 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 79554 event pairs, 49 based on Foata normal form. 168/7420 useless extension candidates. Maximal degree in co-relation 16472. Up to 1262 conditions per place. [2022-12-06 16:46:18,053 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 205 selfloop transitions, 44 changer transitions 378/883 dead transitions. [2022-12-06 16:46:18,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 883 transitions, 6484 flow [2022-12-06 16:46:18,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-06 16:46:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-06 16:46:18,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 13409 transitions. [2022-12-06 16:46:18,077 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8267464085332018 [2022-12-06 16:46:18,080 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 101 predicate places. [2022-12-06 16:46:18,080 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 883 transitions, 6484 flow [2022-12-06 16:46:18,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:18,083 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:18,083 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:18,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:46:18,083 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:18,084 INFO L85 PathProgramCache]: Analyzing trace with hash 892036894, now seen corresponding path program 3 times [2022-12-06 16:46:18,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:18,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737978432] [2022-12-06 16:46:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:18,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:19,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:19,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737978432] [2022-12-06 16:46:19,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737978432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:19,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:19,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:46:19,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947793776] [2022-12-06 16:46:19,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:19,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:46:19,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:19,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:46:19,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:46:19,316 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-06 16:46:19,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 883 transitions, 6484 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:19,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:19,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-06 16:46:19,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:22,309 INFO L130 PetriNetUnfolder]: 2351/10286 cut-off events. [2022-12-06 16:46:22,310 INFO L131 PetriNetUnfolder]: For 9032/12263 co-relation queries the response was YES. [2022-12-06 16:46:22,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27781 conditions, 10286 events. 2351/10286 cut-off events. For 9032/12263 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 115715 event pairs, 62 based on Foata normal form. 348/10079 useless extension candidates. Maximal degree in co-relation 25088. Up to 1684 conditions per place. [2022-12-06 16:46:22,393 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 265 selfloop transitions, 57 changer transitions 475/1053 dead transitions. [2022-12-06 16:46:22,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1053 transitions, 9671 flow [2022-12-06 16:46:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-06 16:46:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-12-06 16:46:22,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 10689 transitions. [2022-12-06 16:46:22,558 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8280269579363235 [2022-12-06 16:46:22,559 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 139 predicate places. [2022-12-06 16:46:22,559 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1053 transitions, 9671 flow [2022-12-06 16:46:22,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:22,560 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:22,561 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:22,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:46:22,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:22,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1674963550, now seen corresponding path program 4 times [2022-12-06 16:46:22,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:22,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440804147] [2022-12-06 16:46:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:22,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:23,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:23,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440804147] [2022-12-06 16:46:23,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440804147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:23,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:23,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:46:23,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602992466] [2022-12-06 16:46:23,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:23,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:46:23,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:46:23,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:46:23,462 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-06 16:46:23,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1053 transitions, 9671 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:23,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:23,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-06 16:46:23,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:26,886 INFO L130 PetriNetUnfolder]: 2329/10167 cut-off events. [2022-12-06 16:46:26,886 INFO L131 PetriNetUnfolder]: For 12637/16835 co-relation queries the response was YES. [2022-12-06 16:46:26,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31492 conditions, 10167 events. 2329/10167 cut-off events. For 12637/16835 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 113855 event pairs, 52 based on Foata normal form. 419/10064 useless extension candidates. Maximal degree in co-relation 28401. Up to 1684 conditions per place. [2022-12-06 16:46:26,940 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 280 selfloop transitions, 53 changer transitions 511/1100 dead transitions. [2022-12-06 16:46:26,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 1100 transitions, 11910 flow [2022-12-06 16:46:26,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-06 16:46:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-06 16:46:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 13448 transitions. [2022-12-06 16:46:26,955 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8291509957457304 [2022-12-06 16:46:26,956 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 187 predicate places. [2022-12-06 16:46:26,956 INFO L495 AbstractCegarLoop]: Abstraction has has 504 places, 1100 transitions, 11910 flow [2022-12-06 16:46:26,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:26,958 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:26,958 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:26,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:46:26,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:26,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:26,959 INFO L85 PathProgramCache]: Analyzing trace with hash -898125946, now seen corresponding path program 5 times [2022-12-06 16:46:26,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:26,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450296338] [2022-12-06 16:46:26,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:26,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:27,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:27,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450296338] [2022-12-06 16:46:27,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450296338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:27,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:27,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:46:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966755447] [2022-12-06 16:46:27,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:27,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:46:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:27,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:46:27,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:46:27,824 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-06 16:46:27,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 1100 transitions, 11910 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:27,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:27,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-06 16:46:27,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:30,833 INFO L130 PetriNetUnfolder]: 2647/11640 cut-off events. [2022-12-06 16:46:30,833 INFO L131 PetriNetUnfolder]: For 20353/26726 co-relation queries the response was YES. [2022-12-06 16:46:30,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40541 conditions, 11640 events. 2647/11640 cut-off events. For 20353/26726 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 134835 event pairs, 88 based on Foata normal form. 522/11578 useless extension candidates. Maximal degree in co-relation 36684. Up to 1954 conditions per place. [2022-12-06 16:46:30,911 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 357 selfloop transitions, 71 changer transitions 606/1290 dead transitions. [2022-12-06 16:46:30,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 1290 transitions, 16597 flow [2022-12-06 16:46:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-06 16:46:30,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-06 16:46:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 13367 transitions. [2022-12-06 16:46:30,925 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8241568530735557 [2022-12-06 16:46:30,925 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 235 predicate places. [2022-12-06 16:46:30,926 INFO L495 AbstractCegarLoop]: Abstraction has has 552 places, 1290 transitions, 16597 flow [2022-12-06 16:46:30,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:30,927 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:30,927 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:30,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:46:30,928 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:30,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:30,928 INFO L85 PathProgramCache]: Analyzing trace with hash -808923364, now seen corresponding path program 6 times [2022-12-06 16:46:30,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:30,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141841036] [2022-12-06 16:46:30,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:30,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:32,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:32,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141841036] [2022-12-06 16:46:32,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141841036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:32,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:32,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-06 16:46:32,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705032557] [2022-12-06 16:46:32,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:32,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:46:32,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:32,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:46:32,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-06 16:46:32,491 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 331 [2022-12-06 16:46:32,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 1290 transitions, 16597 flow. Second operand has 16 states, 16 states have (on average 249.25) internal successors, (3988), 16 states have internal predecessors, (3988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:32,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:32,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 331 [2022-12-06 16:46:32,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:35,462 INFO L130 PetriNetUnfolder]: 2651/11723 cut-off events. [2022-12-06 16:46:35,463 INFO L131 PetriNetUnfolder]: For 27241/34659 co-relation queries the response was YES. [2022-12-06 16:46:35,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45057 conditions, 11723 events. 2651/11723 cut-off events. For 27241/34659 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 136390 event pairs, 66 based on Foata normal form. 554/11707 useless extension candidates. Maximal degree in co-relation 40668. Up to 1954 conditions per place. [2022-12-06 16:46:35,532 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 389 selfloop transitions, 72 changer transitions 666/1364 dead transitions. [2022-12-06 16:46:35,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 1364 transitions, 19965 flow [2022-12-06 16:46:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 16:46:35,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 16:46:35,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 7332 transitions. [2022-12-06 16:46:35,540 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7638295655797479 [2022-12-06 16:46:35,541 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 263 predicate places. [2022-12-06 16:46:35,541 INFO L495 AbstractCegarLoop]: Abstraction has has 580 places, 1364 transitions, 19965 flow [2022-12-06 16:46:35,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 249.25) internal successors, (3988), 16 states have internal predecessors, (3988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:35,543 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:35,543 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:35,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:46:35,543 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:35,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:35,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1035629390, now seen corresponding path program 7 times [2022-12-06 16:46:35,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:35,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307568853] [2022-12-06 16:46:35,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:35,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:36,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:36,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307568853] [2022-12-06 16:46:36,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307568853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:36,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:36,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:46:36,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484990040] [2022-12-06 16:46:36,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:36,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:46:36,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:36,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:46:36,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:46:36,402 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-06 16:46:36,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 1364 transitions, 19965 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:36,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:36,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-06 16:46:36,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:40,412 INFO L130 PetriNetUnfolder]: 2985/13418 cut-off events. [2022-12-06 16:46:40,412 INFO L131 PetriNetUnfolder]: For 39769/49832 co-relation queries the response was YES. [2022-12-06 16:46:40,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55700 conditions, 13418 events. 2985/13418 cut-off events. For 39769/49832 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 161143 event pairs, 29 based on Foata normal form. 619/13373 useless extension candidates. Maximal degree in co-relation 50299. Up to 2216 conditions per place. [2022-12-06 16:46:40,495 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 418 selfloop transitions, 74 changer transitions 738/1486 dead transitions. [2022-12-06 16:46:40,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 1486 transitions, 24576 flow [2022-12-06 16:46:40,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-06 16:46:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2022-12-06 16:46:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 16138 transitions. [2022-12-06 16:46:40,510 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8263607967637872 [2022-12-06 16:46:40,510 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 321 predicate places. [2022-12-06 16:46:40,511 INFO L495 AbstractCegarLoop]: Abstraction has has 638 places, 1486 transitions, 24576 flow [2022-12-06 16:46:40,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:40,512 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:40,512 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:40,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:46:40,513 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:40,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:40,513 INFO L85 PathProgramCache]: Analyzing trace with hash -762793216, now seen corresponding path program 8 times [2022-12-06 16:46:40,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:40,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118128386] [2022-12-06 16:46:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:40,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:41,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:41,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:41,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118128386] [2022-12-06 16:46:41,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118128386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:41,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:41,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:46:41,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129874433] [2022-12-06 16:46:41,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:41,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:46:41,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:41,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:46:41,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:46:41,551 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-06 16:46:41,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 1486 transitions, 24576 flow. Second operand has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:41,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:41,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-06 16:46:41,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:44,917 INFO L130 PetriNetUnfolder]: 2983/13542 cut-off events. [2022-12-06 16:46:44,917 INFO L131 PetriNetUnfolder]: For 50018/61960 co-relation queries the response was YES. [2022-12-06 16:46:44,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60786 conditions, 13542 events. 2983/13542 cut-off events. For 50018/61960 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 163296 event pairs, 60 based on Foata normal form. 603/13493 useless extension candidates. Maximal degree in co-relation 54876. Up to 2216 conditions per place. [2022-12-06 16:46:45,002 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 428 selfloop transitions, 75 changer transitions 774/1533 dead transitions. [2022-12-06 16:46:45,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 1533 transitions, 28057 flow [2022-12-06 16:46:45,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-06 16:46:45,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-06 16:46:45,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 13407 transitions. [2022-12-06 16:46:45,017 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8266230963684568 [2022-12-06 16:46:45,019 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 369 predicate places. [2022-12-06 16:46:45,019 INFO L495 AbstractCegarLoop]: Abstraction has has 686 places, 1533 transitions, 28057 flow [2022-12-06 16:46:45,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.5) internal successors, (3773), 14 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:45,023 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:45,023 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:45,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:46:45,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:45,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2064033597, now seen corresponding path program 1 times [2022-12-06 16:46:45,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:45,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696931738] [2022-12-06 16:46:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:45,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:46,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:46,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:46,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696931738] [2022-12-06 16:46:46,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696931738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:46,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:46,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:46:46,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467490205] [2022-12-06 16:46:46,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:46,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:46:46,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:46,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:46:46,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:46:46,231 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 331 [2022-12-06 16:46:46,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 686 places, 1533 transitions, 28057 flow. Second operand has 14 states, 14 states have (on average 269.64285714285717) internal successors, (3775), 14 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:46,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:46,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 331 [2022-12-06 16:46:46,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:50,233 INFO L130 PetriNetUnfolder]: 5089/19367 cut-off events. [2022-12-06 16:46:50,233 INFO L131 PetriNetUnfolder]: For 137878/152096 co-relation queries the response was YES. [2022-12-06 16:46:50,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101848 conditions, 19367 events. 5089/19367 cut-off events. For 137878/152096 co-relation queries the response was YES. Maximal size of possible extension queue 849. Compared 240160 event pairs, 10 based on Foata normal form. 598/19220 useless extension candidates. Maximal degree in co-relation 92177. Up to 3360 conditions per place. [2022-12-06 16:46:50,323 INFO L137 encePairwiseOnDemand]: 313/331 looper letters, 490 selfloop transitions, 92 changer transitions 1418/2276 dead transitions. [2022-12-06 16:46:50,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 718 places, 2276 transitions, 47740 flow [2022-12-06 16:46:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-06 16:46:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-06 16:46:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 9042 transitions. [2022-12-06 16:46:50,333 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8277945619335347 [2022-12-06 16:46:50,333 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 401 predicate places. [2022-12-06 16:46:50,333 INFO L495 AbstractCegarLoop]: Abstraction has has 718 places, 2276 transitions, 47740 flow [2022-12-06 16:46:50,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 269.64285714285717) internal successors, (3775), 14 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:50,334 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:50,335 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:50,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:46:50,335 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:46:50,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash 244198755, now seen corresponding path program 2 times [2022-12-06 16:46:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:50,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852451749] [2022-12-06 16:46:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:46:52,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:52,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852451749] [2022-12-06 16:46:52,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852451749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:52,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:52,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-12-06 16:46:52,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626799776] [2022-12-06 16:46:52,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:52,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-06 16:46:52,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:52,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-06 16:46:52,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-12-06 16:46:52,507 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-06 16:46:52,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 718 places, 2276 transitions, 47740 flow. Second operand has 26 states, 26 states have (on average 232.0) internal successors, (6032), 26 states have internal predecessors, (6032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:46:52,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:52,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-06 16:46:52,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:47:18,492 INFO L130 PetriNetUnfolder]: 16267/58435 cut-off events. [2022-12-06 16:47:18,493 INFO L131 PetriNetUnfolder]: For 501876/546314 co-relation queries the response was YES. [2022-12-06 16:47:18,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337670 conditions, 58435 events. 16267/58435 cut-off events. For 501876/546314 co-relation queries the response was YES. Maximal size of possible extension queue 2439. Compared 847616 event pairs, 500 based on Foata normal form. 1478/57660 useless extension candidates. Maximal degree in co-relation 233265. Up to 11368 conditions per place. [2022-12-06 16:47:18,823 INFO L137 encePairwiseOnDemand]: 300/331 looper letters, 1562 selfloop transitions, 268 changer transitions 5152/7205 dead transitions. [2022-12-06 16:47:18,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 912 places, 7205 transitions, 175154 flow [2022-12-06 16:47:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2022-12-06 16:47:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2022-12-06 16:47:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 45972 transitions. [2022-12-06 16:47:18,872 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7122472693469672 [2022-12-06 16:47:18,873 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 595 predicate places. [2022-12-06 16:47:18,873 INFO L495 AbstractCegarLoop]: Abstraction has has 912 places, 7205 transitions, 175154 flow [2022-12-06 16:47:18,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 232.0) internal successors, (6032), 26 states have internal predecessors, (6032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:47:18,874 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:47:18,875 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:47:18,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 16:47:18,875 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:47:18,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:47:18,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1442979299, now seen corresponding path program 3 times [2022-12-06 16:47:18,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:47:18,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609791153] [2022-12-06 16:47:18,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:47:18,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:47:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:47:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:47:21,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:47:21,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609791153] [2022-12-06 16:47:21,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609791153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:47:21,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:47:21,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-12-06 16:47:21,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397705073] [2022-12-06 16:47:21,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:47:21,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-06 16:47:21,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:47:21,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-06 16:47:21,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2022-12-06 16:47:21,549 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 331 [2022-12-06 16:47:21,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 912 places, 7205 transitions, 175154 flow. Second operand has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:47:21,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:47:21,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 331 [2022-12-06 16:47:21,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:48:11,646 INFO L130 PetriNetUnfolder]: 25903/96662 cut-off events. [2022-12-06 16:48:11,647 INFO L131 PetriNetUnfolder]: For 846002/916601 co-relation queries the response was YES. [2022-12-06 16:48:11,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623748 conditions, 96662 events. 25903/96662 cut-off events. For 846002/916601 co-relation queries the response was YES. Maximal size of possible extension queue 2883. Compared 1459355 event pairs, 527 based on Foata normal form. 2260/95501 useless extension candidates. Maximal degree in co-relation 485670. Up to 17278 conditions per place. [2022-12-06 16:48:12,149 INFO L137 encePairwiseOnDemand]: 298/331 looper letters, 1800 selfloop transitions, 360 changer transitions 12220/14603 dead transitions. [2022-12-06 16:48:12,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 14603 transitions, 390323 flow [2022-12-06 16:48:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-12-06 16:48:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2022-12-06 16:48:12,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 26937 transitions. [2022-12-06 16:48:12,168 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.720182873031575 [2022-12-06 16:48:12,169 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 707 predicate places. [2022-12-06 16:48:12,169 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 14603 transitions, 390323 flow [2022-12-06 16:48:12,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 231.88888888888889) internal successors, (6261), 27 states have internal predecessors, (6261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:48:12,171 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:48:12,171 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:48:12,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 16:48:12,171 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:48:12,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:48:12,172 INFO L85 PathProgramCache]: Analyzing trace with hash -997926941, now seen corresponding path program 4 times [2022-12-06 16:48:12,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:48:12,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193999201] [2022-12-06 16:48:12,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:48:12,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:48:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:48:13,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:48:13,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:48:13,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193999201] [2022-12-06 16:48:13,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193999201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:48:13,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:48:13,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-06 16:48:13,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561583079] [2022-12-06 16:48:13,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:48:13,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-06 16:48:13,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:48:13,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-06 16:48:13,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-12-06 16:48:13,443 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-06 16:48:13,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 14603 transitions, 390323 flow. Second operand has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:48:13,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:48:13,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-06 16:48:13,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:49:50,312 INFO L130 PetriNetUnfolder]: 25958/96280 cut-off events. [2022-12-06 16:49:50,312 INFO L131 PetriNetUnfolder]: For 936640/1012993 co-relation queries the response was YES. [2022-12-06 16:49:50,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673068 conditions, 96280 events. 25958/96280 cut-off events. For 936640/1012993 co-relation queries the response was YES. Maximal size of possible extension queue 2918. Compared 1451462 event pairs, 333 based on Foata normal form. 1959/94870 useless extension candidates. Maximal degree in co-relation 523551. Up to 17364 conditions per place. [2022-12-06 16:49:50,929 INFO L137 encePairwiseOnDemand]: 311/331 looper letters, 1638 selfloop transitions, 292 changer transitions 13461/15679 dead transitions. [2022-12-06 16:49:50,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1106 places, 15679 transitions, 449402 flow [2022-12-06 16:49:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-12-06 16:49:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2022-12-06 16:49:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 22478 transitions. [2022-12-06 16:49:50,939 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8181851272158119 [2022-12-06 16:49:50,940 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 789 predicate places. [2022-12-06 16:49:50,940 INFO L495 AbstractCegarLoop]: Abstraction has has 1106 places, 15679 transitions, 449402 flow [2022-12-06 16:49:50,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:49:50,941 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:49:50,941 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:49:50,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 16:49:50,941 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:49:50,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:49:50,942 INFO L85 PathProgramCache]: Analyzing trace with hash -748367193, now seen corresponding path program 5 times [2022-12-06 16:49:50,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:49:50,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136486934] [2022-12-06 16:49:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:49:50,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:49:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:49:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:49:57,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:49:57,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136486934] [2022-12-06 16:49:57,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136486934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:49:57,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:49:57,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2022-12-06 16:49:57,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356385818] [2022-12-06 16:49:57,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:49:57,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-12-06 16:49:57,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:49:57,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-12-06 16:49:57,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=2383, Unknown=0, NotChecked=0, Total=2550 [2022-12-06 16:49:57,208 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 331 [2022-12-06 16:49:57,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1106 places, 15679 transitions, 449402 flow. Second operand has 51 states, 51 states have (on average 173.58823529411765) internal successors, (8853), 51 states have internal predecessors, (8853), 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) [2022-12-06 16:49:57,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:49:57,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 331 [2022-12-06 16:49:57,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:57,432 INFO L130 PetriNetUnfolder]: 80321/228242 cut-off events. [2022-12-06 16:54:57,432 INFO L131 PetriNetUnfolder]: For 3648108/3748902 co-relation queries the response was YES. [2022-12-06 16:54:58,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1725780 conditions, 228242 events. 80321/228242 cut-off events. For 3648108/3748902 co-relation queries the response was YES. Maximal size of possible extension queue 6045. Compared 3471870 event pairs, 4209 based on Foata normal form. 2722/220689 useless extension candidates. Maximal degree in co-relation 1328400. Up to 37734 conditions per place. [2022-12-06 16:54:58,672 INFO L137 encePairwiseOnDemand]: 253/331 looper letters, 2278 selfloop transitions, 551 changer transitions 22832/25826 dead transitions. [2022-12-06 16:54:58,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1326 places, 25826 transitions, 775688 flow [2022-12-06 16:54:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2022-12-06 16:54:58,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2022-12-06 16:54:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 39728 transitions. [2022-12-06 16:54:58,774 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5430957881642082 [2022-12-06 16:54:58,774 INFO L294 CegarLoopForPetriNet]: 317 programPoint places, 1009 predicate places. [2022-12-06 16:54:58,774 INFO L495 AbstractCegarLoop]: Abstraction has has 1326 places, 25826 transitions, 775688 flow [2022-12-06 16:54:58,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 173.58823529411765) internal successors, (8853), 51 states have internal predecessors, (8853), 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) [2022-12-06 16:54:58,778 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:58,778 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:54:58,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-06 16:54:58,778 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:54:58,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:58,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1085167875, now seen corresponding path program 6 times [2022-12-06 16:54:58,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:58,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012880063] [2022-12-06 16:54:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:58,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:59,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:59,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012880063] [2022-12-06 16:54:59,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012880063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:59,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:54:59,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-06 16:54:59,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238063649] [2022-12-06 16:54:59,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:59,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-06 16:54:59,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:59,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-06 16:54:59,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-12-06 16:54:59,968 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 331 [2022-12-06 16:54:59,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1326 places, 25826 transitions, 775688 flow. Second operand has 17 states, 17 states have (on average 267.11764705882354) internal successors, (4541), 17 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:59,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:59,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 331 [2022-12-06 16:54:59,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 16:58:18,498 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 [2022-12-06 16:58:18,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-06 16:58:18,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 16:58:18,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-06 16:58:18,824 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 264/331 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 842969 conditions, 103316 events (40861/103315 cut-off events. For 2314772/2387084 co-relation queries the response was YES. Maximal size of possible extension queue 6335. Compared 1509665 event pairs, 3000 based on Foata normal form. 1795/105067 useless extension candidates. Maximal degree in co-relation 690061. Up to 21156 conditions per place.). [2022-12-06 16:58:18,826 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-12-06 16:58:18,826 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 16:58:18,826 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 16:58:18,826 INFO L458 BasicCegarLoop]: Path program histogram: [8, 6, 1, 1] [2022-12-06 16:58:18,830 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:58:18,830 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:58:18,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:58:18 BasicIcfg [2022-12-06 16:58:18,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:58:18,835 INFO L158 Benchmark]: Toolchain (without parser) took 739528.26ms. Allocated memory was 192.9MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 158.5MB in the beginning and 595.4MB in the end (delta: -436.9MB). Peak memory consumption was 4.7GB. Max. memory is 8.0GB. [2022-12-06 16:58:18,835 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 192.9MB. Free memory was 168.7MB in the beginning and 168.6MB in the end (delta: 76.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:58:18,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5904.65ms. Allocated memory was 192.9MB in the beginning and 240.1MB in the end (delta: 47.2MB). Free memory was 158.5MB in the beginning and 106.2MB in the end (delta: 52.3MB). Peak memory consumption was 139.9MB. Max. memory is 8.0GB. [2022-12-06 16:58:18,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 163.65ms. Allocated memory is still 240.1MB. Free memory was 106.2MB in the beginning and 181.8MB in the end (delta: -75.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-06 16:58:18,835 INFO L158 Benchmark]: Boogie Preprocessor took 40.34ms. Allocated memory is still 240.1MB. Free memory was 181.8MB in the beginning and 177.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-06 16:58:18,836 INFO L158 Benchmark]: RCFGBuilder took 897.15ms. Allocated memory is still 240.1MB. Free memory was 177.6MB in the beginning and 135.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2022-12-06 16:58:18,836 INFO L158 Benchmark]: TraceAbstraction took 732516.18ms. Allocated memory was 240.1MB in the beginning and 5.2GB in the end (delta: 5.0GB). Free memory was 135.1MB in the beginning and 595.4MB in the end (delta: -460.3MB). Peak memory consumption was 4.6GB. Max. memory is 8.0GB. [2022-12-06 16:58:18,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 192.9MB. Free memory was 168.7MB in the beginning and 168.6MB in the end (delta: 76.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5904.65ms. Allocated memory was 192.9MB in the beginning and 240.1MB in the end (delta: 47.2MB). Free memory was 158.5MB in the beginning and 106.2MB in the end (delta: 52.3MB). Peak memory consumption was 139.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 163.65ms. Allocated memory is still 240.1MB. Free memory was 106.2MB in the beginning and 181.8MB in the end (delta: -75.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.34ms. Allocated memory is still 240.1MB. Free memory was 181.8MB in the beginning and 177.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 897.15ms. Allocated memory is still 240.1MB. Free memory was 177.6MB in the beginning and 135.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * TraceAbstraction took 732516.18ms. Allocated memory was 240.1MB in the beginning and 5.2GB in the end (delta: 5.0GB). Free memory was 135.1MB in the beginning and 595.4MB in the end (delta: -460.3MB). Peak memory consumption was 4.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 264/331 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 842969 conditions, 103316 events (40861/103315 cut-off events. For 2314772/2387084 co-relation queries the response was YES. Maximal size of possible extension queue 6335. Compared 1509665 event pairs, 3000 based on Foata normal form. 1795/105067 useless extension candidates. Maximal degree in co-relation 690061. Up to 21156 conditions per place.). - TimeoutResultAtElement [Line: 6861]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 264/331 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 842969 conditions, 103316 events (40861/103315 cut-off events. For 2314772/2387084 co-relation queries the response was YES. Maximal size of possible extension queue 6335. Compared 1509665 event pairs, 3000 based on Foata normal form. 1795/105067 useless extension candidates. Maximal degree in co-relation 690061. Up to 21156 conditions per place.). - TimeoutResultAtElement [Line: 6862]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 264/331 universal loopers) in iteration 16,while PetriNetUnfolder was constructing finite prefix that currently has 842969 conditions, 103316 events (40861/103315 cut-off events. For 2314772/2387084 co-relation queries the response was YES. Maximal size of possible extension queue 6335. Compared 1509665 event pairs, 3000 based on Foata normal form. 1795/105067 useless extension candidates. Maximal degree in co-relation 690061. Up to 21156 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 446 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 732.4s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 705.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9077 SdHoareTripleChecker+Valid, 17.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9077 mSDsluCounter, 19586 SdHoareTripleChecker+Invalid, 14.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17858 mSDsCounter, 291 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28546 IncrementalHoareTripleChecker+Invalid, 28837 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 291 mSolverCounterUnsat, 1728 mSDtfsCounter, 28546 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1333 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58006 ImplicationChecksByTransitivity, 57.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=775688occurred in iteration=15, InterpolantAutomatonStates: 1025, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 24.3s InterpolantComputationTime, 3651 NumberOfCodeBlocks, 3651 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3635 ConstructedInterpolants, 0 QuantifiedInterpolants, 27985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown