/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:43:58,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:43:58,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:43:58,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:43:58,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:43:58,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:43:58,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:43:58,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:43:58,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:43:58,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:43:58,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:43:58,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:43:58,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:43:58,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:43:58,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:43:58,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:43:58,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:43:58,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:43:58,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:43:58,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:43:58,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:43:58,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:43:58,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:43:58,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:43:58,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:43:58,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:43:58,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:43:58,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:43:58,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:43:58,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:43:58,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:43:58,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:43:58,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:43:58,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:43:58,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:43:58,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:43:58,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:43:58,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:43:58,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:43:58,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:43:58,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:43:58,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 14:43:58,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:43:58,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:43:58,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:43:58,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:43:58,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:43:58,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:43:58,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:43:58,929 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:43:58,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:43:58,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:43:58,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:43:58,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:43:58,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:43:58,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:43:58,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:43:58,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:43:58,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:43:58,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:43:58,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:43:58,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:43:58,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:43:58,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:43:58,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:43:59,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:43:59,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:43:59,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:43:59,164 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:43:59,164 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:43:59,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-12 14:44:00,150 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:44:00,530 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:44:00,530 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-12 14:44:00,568 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7df56705/3e128f1b64d443ba88dff8c737c887aa/FLAG83ab7cd8e [2022-12-12 14:44:00,591 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7df56705/3e128f1b64d443ba88dff8c737c887aa [2022-12-12 14:44:00,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:44:00,595 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:44:00,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:44:00,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:44:00,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:44:00,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:44:00" (1/1) ... [2022-12-12 14:44:00,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5235711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:00, skipping insertion in model container [2022-12-12 14:44:00,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:44:00" (1/1) ... [2022-12-12 14:44:00,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:44:00,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:44:01,004 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_llseek_write_nvram.i[5469,5482] [2022-12-12 14:44:01,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,685 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,686 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:01,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:01,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:02,398 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 14:44:02,404 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:02,411 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:02,425 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:02,585 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:44:02,591 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:44:02,794 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 14:44:03,070 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:44:03,079 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:44:03,165 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 14:44:03,170 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 14:44:03,450 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 14:44:03,455 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 14:44:03,460 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 14:44:03,578 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 14:44:03,579 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:44:03,582 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 14:44:03,583 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:44:03,809 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 14:44:03,849 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 14:44:04,037 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 14:44:04,042 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 14:44:04,228 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 14:44:04,444 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 14:44:04,444 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 14:44:04,444 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 14:44:05,409 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 14:44:05,410 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:05,413 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:05,416 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:05,418 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:06,209 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-12 14:44:06,216 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-12 14:44:06,226 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-12 14:44:06,239 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-12 14:44:06,240 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-12 14:44:06,245 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-12 14:44:06,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:44:06,296 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:44:06,307 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_llseek_write_nvram.i[5469,5482] [2022-12-12 14:44:06,315 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,374 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 14:44:06,374 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:06,374 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:06,375 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:06,381 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:44:06,382 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:44:06,389 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 14:44:06,396 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:44:06,397 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:44:06,399 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 14:44:06,399 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 14:44:06,405 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 14:44:06,405 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 14:44:06,405 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 14:44:06,408 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 14:44:06,408 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:44:06,408 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 14:44:06,408 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:44:06,414 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 14:44:06,416 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 14:44:06,419 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 14:44:06,420 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 14:44:06,422 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 14:44:06,425 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 14:44:06,425 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 14:44:06,425 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 14:44:06,490 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 14:44:06,490 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:06,494 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:06,501 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:06,503 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:06,536 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-12 14:44:06,537 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-12 14:44:06,538 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-12 14:44:06,540 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-12 14:44:06,540 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-12 14:44:06,540 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-12 14:44:06,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:44:07,010 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:44:07,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07 WrapperNode [2022-12-12 14:44:07,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:44:07,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:44:07,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:44:07,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:44:07,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,150 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 314 [2022-12-12 14:44:07,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:44:07,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:44:07,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:44:07,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:44:07,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,177 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:44:07,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:44:07,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:44:07,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:44:07,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (1/1) ... [2022-12-12 14:44:07,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:44:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:44:07,220 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) [2022-12-12 14:44:07,249 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 [2022-12-12 14:44:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 14:44:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 14:44:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:44:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:44:07,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:44:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-12 14:44:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:44:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:44:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:44:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-12 14:44:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-12 14:44:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-12 14:44:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:44:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-12 14:44:07,282 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-12 14:44:07,283 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:44:07,649 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:44:07,651 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:44:08,048 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:44:08,060 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:44:08,060 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-12 14:44:08,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:44:08 BoogieIcfgContainer [2022-12-12 14:44:08,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:44:08,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:44:08,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:44:08,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:44:08,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:44:00" (1/3) ... [2022-12-12 14:44:08,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db6a57b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:44:08, skipping insertion in model container [2022-12-12 14:44:08,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:07" (2/3) ... [2022-12-12 14:44:08,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db6a57b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:44:08, skipping insertion in model container [2022-12-12 14:44:08,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:44:08" (3/3) ... [2022-12-12 14:44:08,068 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_write_nvram.i [2022-12-12 14:44:08,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:44:08,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 14:44:08,082 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:44:08,181 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 14:44:08,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 338 transitions, 692 flow [2022-12-12 14:44:08,301 INFO L130 PetriNetUnfolder]: 15/336 cut-off events. [2022-12-12 14:44:08,302 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 14:44:08,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 336 events. 15/336 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 320 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 274. Up to 5 conditions per place. [2022-12-12 14:44:08,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 338 transitions, 692 flow [2022-12-12 14:44:08,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 320 places, 328 transitions, 665 flow [2022-12-12 14:44:08,314 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:44:08,329 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 320 places, 328 transitions, 665 flow [2022-12-12 14:44:08,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 320 places, 328 transitions, 665 flow [2022-12-12 14:44:08,416 INFO L130 PetriNetUnfolder]: 15/328 cut-off events. [2022-12-12 14:44:08,417 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 14:44:08,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 328 events. 15/328 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 304 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 274. Up to 5 conditions per place. [2022-12-12 14:44:08,427 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 320 places, 328 transitions, 665 flow [2022-12-12 14:44:08,427 INFO L226 LiptonReduction]: Number of co-enabled transitions 10680 [2022-12-12 14:45:07,027 WARN L233 SmtUtils]: Spent 10.25s on a formula simplification that was a NOOP. DAG size: 381 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:45:15,130 WARN L233 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:45:24,980 WARN L233 SmtUtils]: Spent 9.85s on a formula simplification that was a NOOP. DAG size: 381 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:45:32,726 WARN L233 SmtUtils]: Spent 7.74s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:45:43,240 WARN L233 SmtUtils]: Spent 9.84s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:45:53,255 WARN L233 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:46:11,516 WARN L233 SmtUtils]: Spent 18.26s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:46:30,438 WARN L233 SmtUtils]: Spent 18.92s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:48:00,396 WARN L233 SmtUtils]: Spent 1.45m on a formula simplification. DAG size of input: 522 DAG size of output: 515 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:48:40,800 WARN L233 SmtUtils]: Spent 40.40s on a formula simplification that was a NOOP. DAG size: 503 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:50:13,542 WARN L233 SmtUtils]: Spent 1.55m on a formula simplification. DAG size of input: 534 DAG size of output: 525 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:51:10,807 WARN L233 SmtUtils]: Spent 57.26s on a formula simplification that was a NOOP. DAG size: 512 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:51:10,813 INFO L241 LiptonReduction]: Total number of compositions: 311 [2022-12-12 14:51:10,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:51:10,825 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;@1d045904, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:51:10,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-12 14:51:10,842 INFO L130 PetriNetUnfolder]: 9/130 cut-off events. [2022-12-12 14:51:10,842 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 14:51:10,843 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:10,844 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 14:51:10,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:10,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:10,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1764301391, now seen corresponding path program 1 times [2022-12-12 14:51:10,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:10,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756767409] [2022-12-12 14:51:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:10,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:11,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:11,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:11,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756767409] [2022-12-12 14:51:11,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756767409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:11,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:11,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:51:11,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972158745] [2022-12-12 14:51:11,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:11,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:51:11,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:11,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:51:11,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:51:11,729 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 149 [2022-12-12 14:51:11,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 307 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-12-12 14:51:11,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:11,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 149 [2022-12-12 14:51:11,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:14,743 INFO L130 PetriNetUnfolder]: 20400/32528 cut-off events. [2022-12-12 14:51:14,743 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2022-12-12 14:51:14,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64975 conditions, 32528 events. 20400/32528 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 2959. Compared 265236 event pairs, 15403 based on Foata normal form. 0/6698 useless extension candidates. Maximal degree in co-relation 64139. Up to 27226 conditions per place. [2022-12-12 14:51:14,801 INFO L137 encePairwiseOnDemand]: 136/149 looper letters, 148 selfloop transitions, 9 changer transitions 45/209 dead transitions. [2022-12-12 14:51:14,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 209 transitions, 837 flow [2022-12-12 14:51:14,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:51:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:51:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2022-12-12 14:51:14,811 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5100671140939598 [2022-12-12 14:51:14,813 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 307 flow. Second operand 3 states and 228 transitions. [2022-12-12 14:51:14,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 209 transitions, 837 flow [2022-12-12 14:51:14,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 209 transitions, 829 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:51:14,824 INFO L231 Difference]: Finished difference. Result has 144 places, 152 transitions, 364 flow [2022-12-12 14:51:14,826 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=144, PETRI_TRANSITIONS=152} [2022-12-12 14:51:14,829 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -1 predicate places. [2022-12-12 14:51:14,829 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 152 transitions, 364 flow [2022-12-12 14:51:14,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-12-12 14:51:14,829 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:14,829 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:14,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:51:14,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:14,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1143323380, now seen corresponding path program 1 times [2022-12-12 14:51:14,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:14,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297131241] [2022-12-12 14:51:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:14,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:15,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:15,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:15,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297131241] [2022-12-12 14:51:15,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297131241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:15,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:15,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:51:15,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574470992] [2022-12-12 14:51:15,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:15,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:51:15,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:15,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:51:15,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:51:15,206 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 149 [2022-12-12 14:51:15,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 152 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-12 14:51:15,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:15,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 149 [2022-12-12 14:51:15,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:18,072 INFO L130 PetriNetUnfolder]: 21756/35220 cut-off events. [2022-12-12 14:51:18,072 INFO L131 PetriNetUnfolder]: For 1350/1350 co-relation queries the response was YES. [2022-12-12 14:51:18,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73519 conditions, 35220 events. 21756/35220 cut-off events. For 1350/1350 co-relation queries the response was YES. Maximal size of possible extension queue 2875. Compared 292729 event pairs, 13838 based on Foata normal form. 0/8429 useless extension candidates. Maximal degree in co-relation 52052. Up to 23626 conditions per place. [2022-12-12 14:51:18,128 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 75 selfloop transitions, 3 changer transitions 176/262 dead transitions. [2022-12-12 14:51:18,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 262 transitions, 1137 flow [2022-12-12 14:51:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:51:18,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:51:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2022-12-12 14:51:18,133 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5950782997762863 [2022-12-12 14:51:18,133 INFO L175 Difference]: Start difference. First operand has 144 places, 152 transitions, 364 flow. Second operand 3 states and 266 transitions. [2022-12-12 14:51:18,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 262 transitions, 1137 flow [2022-12-12 14:51:18,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 262 transitions, 1105 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:51:18,160 INFO L231 Difference]: Finished difference. Result has 143 places, 76 transitions, 202 flow [2022-12-12 14:51:18,161 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=143, PETRI_TRANSITIONS=76} [2022-12-12 14:51:18,161 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -2 predicate places. [2022-12-12 14:51:18,161 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 76 transitions, 202 flow [2022-12-12 14:51:18,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-12 14:51:18,162 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:18,162 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:18,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:51:18,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:18,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1141227127, now seen corresponding path program 1 times [2022-12-12 14:51:18,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:18,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67733080] [2022-12-12 14:51:18,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:18,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:18,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:18,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67733080] [2022-12-12 14:51:18,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67733080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:18,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:18,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:51:18,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865252697] [2022-12-12 14:51:18,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:18,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 14:51:18,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:18,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 14:51:18,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 14:51:18,750 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 149 [2022-12-12 14:51:18,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 76 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2022-12-12 14:51:18,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:18,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 149 [2022-12-12 14:51:18,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:19,890 INFO L130 PetriNetUnfolder]: 5262/9391 cut-off events. [2022-12-12 14:51:19,890 INFO L131 PetriNetUnfolder]: For 857/857 co-relation queries the response was YES. [2022-12-12 14:51:19,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20095 conditions, 9391 events. 5262/9391 cut-off events. For 857/857 co-relation queries the response was YES. Maximal size of possible extension queue 1327. Compared 76705 event pairs, 1374 based on Foata normal form. 91/3612 useless extension candidates. Maximal degree in co-relation 14914. Up to 6336 conditions per place. [2022-12-12 14:51:19,907 INFO L137 encePairwiseOnDemand]: 144/149 looper letters, 49 selfloop transitions, 6 changer transitions 106/168 dead transitions. [2022-12-12 14:51:19,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 168 transitions, 731 flow [2022-12-12 14:51:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:51:19,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:51:19,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 195 transitions. [2022-12-12 14:51:19,908 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.26174496644295303 [2022-12-12 14:51:19,908 INFO L175 Difference]: Start difference. First operand has 143 places, 76 transitions, 202 flow. Second operand 5 states and 195 transitions. [2022-12-12 14:51:19,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 168 transitions, 731 flow [2022-12-12 14:51:19,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 168 transitions, 721 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 14:51:19,921 INFO L231 Difference]: Finished difference. Result has 83 places, 52 transitions, 172 flow [2022-12-12 14:51:19,921 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=83, PETRI_TRANSITIONS=52} [2022-12-12 14:51:19,922 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -62 predicate places. [2022-12-12 14:51:19,922 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 52 transitions, 172 flow [2022-12-12 14:51:19,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2022-12-12 14:51:19,922 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:19,922 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:19,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:51:19,922 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:19,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:19,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1427206036, now seen corresponding path program 1 times [2022-12-12 14:51:19,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:19,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726878361] [2022-12-12 14:51:19,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:19,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:24,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:24,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:24,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726878361] [2022-12-12 14:51:24,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726878361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:24,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:24,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:51:24,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815241778] [2022-12-12 14:51:24,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:24,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:51:24,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:24,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:51:24,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:51:24,516 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 149 [2022-12-12 14:51:24,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 52 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-12-12 14:51:24,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:24,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 149 [2022-12-12 14:51:24,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:25,356 INFO L130 PetriNetUnfolder]: 3680/6824 cut-off events. [2022-12-12 14:51:25,356 INFO L131 PetriNetUnfolder]: For 1671/1671 co-relation queries the response was YES. [2022-12-12 14:51:25,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15317 conditions, 6824 events. 3680/6824 cut-off events. For 1671/1671 co-relation queries the response was YES. Maximal size of possible extension queue 862. Compared 56249 event pairs, 375 based on Foata normal form. 45/3196 useless extension candidates. Maximal degree in co-relation 7410. Up to 2730 conditions per place. [2022-12-12 14:51:25,370 INFO L137 encePairwiseOnDemand]: 142/149 looper letters, 69 selfloop transitions, 10 changer transitions 69/155 dead transitions. [2022-12-12 14:51:25,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 155 transitions, 750 flow [2022-12-12 14:51:25,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 14:51:25,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 14:51:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 202 transitions. [2022-12-12 14:51:25,372 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.16946308724832215 [2022-12-12 14:51:25,372 INFO L175 Difference]: Start difference. First operand has 83 places, 52 transitions, 172 flow. Second operand 8 states and 202 transitions. [2022-12-12 14:51:25,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 155 transitions, 750 flow [2022-12-12 14:51:25,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 155 transitions, 736 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:51:25,376 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 214 flow [2022-12-12 14:51:25,376 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=214, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2022-12-12 14:51:25,377 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -79 predicate places. [2022-12-12 14:51:25,377 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 214 flow [2022-12-12 14:51:25,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-12-12 14:51:25,377 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:25,377 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:25,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:51:25,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:25,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:25,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1412884427, now seen corresponding path program 1 times [2022-12-12 14:51:25,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:25,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160863227] [2022-12-12 14:51:25,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:25,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:28,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:28,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:28,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160863227] [2022-12-12 14:51:28,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160863227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:28,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:28,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:51:28,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776845065] [2022-12-12 14:51:28,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:28,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:51:28,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:28,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:51:28,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:51:28,192 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 149 [2022-12-12 14:51:28,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2022-12-12 14:51:28,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:28,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 149 [2022-12-12 14:51:28,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:29,181 INFO L130 PetriNetUnfolder]: 2982/5409 cut-off events. [2022-12-12 14:51:29,181 INFO L131 PetriNetUnfolder]: For 2063/2063 co-relation queries the response was YES. [2022-12-12 14:51:29,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12547 conditions, 5409 events. 2982/5409 cut-off events. For 2063/2063 co-relation queries the response was YES. Maximal size of possible extension queue 656. Compared 41468 event pairs, 555 based on Foata normal form. 38/2541 useless extension candidates. Maximal degree in co-relation 11790. Up to 2966 conditions per place. [2022-12-12 14:51:29,192 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 56 selfloop transitions, 11 changer transitions 70/144 dead transitions. [2022-12-12 14:51:29,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 144 transitions, 720 flow [2022-12-12 14:51:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 14:51:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 14:51:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 197 transitions. [2022-12-12 14:51:29,194 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.16526845637583892 [2022-12-12 14:51:29,194 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 214 flow. Second operand 8 states and 197 transitions. [2022-12-12 14:51:29,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 144 transitions, 720 flow [2022-12-12 14:51:29,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 144 transitions, 714 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-12 14:51:29,198 INFO L231 Difference]: Finished difference. Result has 73 places, 58 transitions, 249 flow [2022-12-12 14:51:29,199 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=249, PETRI_PLACES=73, PETRI_TRANSITIONS=58} [2022-12-12 14:51:29,199 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -72 predicate places. [2022-12-12 14:51:29,199 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 58 transitions, 249 flow [2022-12-12 14:51:29,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2022-12-12 14:51:29,199 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:29,199 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:29,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 14:51:29,200 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:29,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:29,200 INFO L85 PathProgramCache]: Analyzing trace with hash 617435610, now seen corresponding path program 2 times [2022-12-12 14:51:29,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:29,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605786594] [2022-12-12 14:51:29,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:29,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:29,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:29,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:29,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605786594] [2022-12-12 14:51:29,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605786594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:29,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:29,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:51:29,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910128506] [2022-12-12 14:51:29,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:29,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:51:29,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:29,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:51:29,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:51:29,712 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 149 [2022-12-12 14:51:29,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 58 transitions, 249 flow. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-12-12 14:51:29,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:29,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 149 [2022-12-12 14:51:29,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:30,594 INFO L130 PetriNetUnfolder]: 2652/5017 cut-off events. [2022-12-12 14:51:30,595 INFO L131 PetriNetUnfolder]: For 3189/3189 co-relation queries the response was YES. [2022-12-12 14:51:30,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11878 conditions, 5017 events. 2652/5017 cut-off events. For 3189/3189 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 40265 event pairs, 138 based on Foata normal form. 45/2397 useless extension candidates. Maximal degree in co-relation 10994. Up to 1826 conditions per place. [2022-12-12 14:51:30,606 INFO L137 encePairwiseOnDemand]: 142/149 looper letters, 47 selfloop transitions, 9 changer transitions 65/128 dead transitions. [2022-12-12 14:51:30,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 128 transitions, 671 flow [2022-12-12 14:51:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:51:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:51:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2022-12-12 14:51:30,607 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.17785234899328858 [2022-12-12 14:51:30,607 INFO L175 Difference]: Start difference. First operand has 73 places, 58 transitions, 249 flow. Second operand 6 states and 159 transitions. [2022-12-12 14:51:30,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 128 transitions, 671 flow [2022-12-12 14:51:30,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 128 transitions, 660 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-12 14:51:30,616 INFO L231 Difference]: Finished difference. Result has 76 places, 57 transitions, 252 flow [2022-12-12 14:51:30,616 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=252, PETRI_PLACES=76, PETRI_TRANSITIONS=57} [2022-12-12 14:51:30,617 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -69 predicate places. [2022-12-12 14:51:30,617 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 57 transitions, 252 flow [2022-12-12 14:51:30,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-12-12 14:51:30,617 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:30,617 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:30,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 14:51:30,618 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:30,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:30,618 INFO L85 PathProgramCache]: Analyzing trace with hash 617349120, now seen corresponding path program 3 times [2022-12-12 14:51:30,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:30,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153713798] [2022-12-12 14:51:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:30,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:34,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:34,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153713798] [2022-12-12 14:51:34,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153713798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:34,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:34,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:51:34,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365350435] [2022-12-12 14:51:34,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:34,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:51:34,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:34,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:51:34,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:51:34,278 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 149 [2022-12-12 14:51:34,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 57 transitions, 252 flow. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-12-12 14:51:34,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:34,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 149 [2022-12-12 14:51:34,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:35,029 INFO L130 PetriNetUnfolder]: 2555/4899 cut-off events. [2022-12-12 14:51:35,029 INFO L131 PetriNetUnfolder]: For 3118/3118 co-relation queries the response was YES. [2022-12-12 14:51:35,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11416 conditions, 4899 events. 2555/4899 cut-off events. For 3118/3118 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 39524 event pairs, 409 based on Foata normal form. 45/2315 useless extension candidates. Maximal degree in co-relation 11029. Up to 1581 conditions per place. [2022-12-12 14:51:35,038 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 47 selfloop transitions, 8 changer transitions 90/151 dead transitions. [2022-12-12 14:51:35,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 151 transitions, 761 flow [2022-12-12 14:51:35,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 14:51:35,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 14:51:35,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2022-12-12 14:51:35,040 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.18312559923298177 [2022-12-12 14:51:35,040 INFO L175 Difference]: Start difference. First operand has 76 places, 57 transitions, 252 flow. Second operand 7 states and 191 transitions. [2022-12-12 14:51:35,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 151 transitions, 761 flow [2022-12-12 14:51:35,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 151 transitions, 741 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-12 14:51:35,045 INFO L231 Difference]: Finished difference. Result has 77 places, 54 transitions, 224 flow [2022-12-12 14:51:35,045 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=224, PETRI_PLACES=77, PETRI_TRANSITIONS=54} [2022-12-12 14:51:35,046 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -68 predicate places. [2022-12-12 14:51:35,046 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 54 transitions, 224 flow [2022-12-12 14:51:35,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-12-12 14:51:35,046 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:35,046 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:35,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 14:51:35,046 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:35,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:35,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1427512783, now seen corresponding path program 2 times [2022-12-12 14:51:35,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:35,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051124931] [2022-12-12 14:51:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:35,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:39,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:39,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051124931] [2022-12-12 14:51:39,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051124931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:39,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:39,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:51:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392468746] [2022-12-12 14:51:39,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:39,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:51:39,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:39,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:51:39,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:51:39,415 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 149 [2022-12-12 14:51:39,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 54 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2022-12-12 14:51:39,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:39,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 149 [2022-12-12 14:51:39,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:40,315 INFO L130 PetriNetUnfolder]: 2876/5256 cut-off events. [2022-12-12 14:51:40,315 INFO L131 PetriNetUnfolder]: For 2883/2883 co-relation queries the response was YES. [2022-12-12 14:51:40,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12402 conditions, 5256 events. 2876/5256 cut-off events. For 2883/2883 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 39682 event pairs, 597 based on Foata normal form. 38/2424 useless extension candidates. Maximal degree in co-relation 12018. Up to 1626 conditions per place. [2022-12-12 14:51:40,327 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 49 selfloop transitions, 7 changer transitions 91/153 dead transitions. [2022-12-12 14:51:40,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 153 transitions, 764 flow [2022-12-12 14:51:40,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 14:51:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 14:51:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 209 transitions. [2022-12-12 14:51:40,328 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.17533557046979867 [2022-12-12 14:51:40,328 INFO L175 Difference]: Start difference. First operand has 77 places, 54 transitions, 224 flow. Second operand 8 states and 209 transitions. [2022-12-12 14:51:40,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 153 transitions, 764 flow [2022-12-12 14:51:40,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 153 transitions, 747 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-12 14:51:40,335 INFO L231 Difference]: Finished difference. Result has 78 places, 52 transitions, 207 flow [2022-12-12 14:51:40,335 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=207, PETRI_PLACES=78, PETRI_TRANSITIONS=52} [2022-12-12 14:51:40,338 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -67 predicate places. [2022-12-12 14:51:40,338 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 52 transitions, 207 flow [2022-12-12 14:51:40,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2022-12-12 14:51:40,338 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:40,338 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:40,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 14:51:40,338 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:40,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1656595963, now seen corresponding path program 3 times [2022-12-12 14:51:40,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:40,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875300215] [2022-12-12 14:51:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:40,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:40,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:40,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875300215] [2022-12-12 14:51:40,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875300215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:40,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:40,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:51:40,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277035200] [2022-12-12 14:51:40,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:40,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:51:40,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:40,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:51:40,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:51:40,809 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 149 [2022-12-12 14:51:40,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 52 transitions, 207 flow. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2022-12-12 14:51:40,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:40,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 149 [2022-12-12 14:51:40,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:41,308 INFO L130 PetriNetUnfolder]: 1844/3458 cut-off events. [2022-12-12 14:51:41,308 INFO L131 PetriNetUnfolder]: For 2237/2237 co-relation queries the response was YES. [2022-12-12 14:51:41,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8263 conditions, 3458 events. 1844/3458 cut-off events. For 2237/2237 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 24908 event pairs, 106 based on Foata normal form. 38/1636 useless extension candidates. Maximal degree in co-relation 8254. Up to 1665 conditions per place. [2022-12-12 14:51:41,315 INFO L137 encePairwiseOnDemand]: 144/149 looper letters, 28 selfloop transitions, 3 changer transitions 68/102 dead transitions. [2022-12-12 14:51:41,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 102 transitions, 514 flow [2022-12-12 14:51:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:51:41,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:51:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2022-12-12 14:51:41,316 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.15883668903803133 [2022-12-12 14:51:41,316 INFO L175 Difference]: Start difference. First operand has 78 places, 52 transitions, 207 flow. Second operand 6 states and 142 transitions. [2022-12-12 14:51:41,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 102 transitions, 514 flow [2022-12-12 14:51:41,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 102 transitions, 495 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-12 14:51:41,320 INFO L231 Difference]: Finished difference. Result has 74 places, 30 transitions, 109 flow [2022-12-12 14:51:41,320 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=109, PETRI_PLACES=74, PETRI_TRANSITIONS=30} [2022-12-12 14:51:41,321 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -71 predicate places. [2022-12-12 14:51:41,321 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 30 transitions, 109 flow [2022-12-12 14:51:41,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2022-12-12 14:51:41,321 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:51:41,321 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:51:41,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 14:51:41,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 14:51:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:51:41,322 INFO L85 PathProgramCache]: Analyzing trace with hash 652308690, now seen corresponding path program 4 times [2022-12-12 14:51:41,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:51:41,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951384039] [2022-12-12 14:51:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:51:41,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:51:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:51:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:51:41,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:51:41,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951384039] [2022-12-12 14:51:41,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951384039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:51:41,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:51:41,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 14:51:41,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704282619] [2022-12-12 14:51:41,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:51:41,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 14:51:41,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:51:41,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 14:51:41,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-12 14:51:41,894 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 149 [2022-12-12 14:51:41,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 30 transitions, 109 flow. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-12-12 14:51:41,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:51:41,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 149 [2022-12-12 14:51:41,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:51:42,393 INFO L130 PetriNetUnfolder]: 33/95 cut-off events. [2022-12-12 14:51:42,393 INFO L131 PetriNetUnfolder]: For 178/178 co-relation queries the response was YES. [2022-12-12 14:51:42,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 95 events. 33/95 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 328 event pairs, 0 based on Foata normal form. 45/93 useless extension candidates. Maximal degree in co-relation 230. Up to 80 conditions per place. [2022-12-12 14:51:42,394 INFO L137 encePairwiseOnDemand]: 144/149 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2022-12-12 14:51:42,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 31 transitions, 163 flow [2022-12-12 14:51:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 14:51:42,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 14:51:42,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 71 transitions. [2022-12-12 14:51:42,395 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.07941834451901567 [2022-12-12 14:51:42,395 INFO L175 Difference]: Start difference. First operand has 74 places, 30 transitions, 109 flow. Second operand 6 states and 71 transitions. [2022-12-12 14:51:42,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 31 transitions, 163 flow [2022-12-12 14:51:42,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 126 flow, removed 3 selfloop flow, removed 15 redundant places. [2022-12-12 14:51:42,395 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2022-12-12 14:51:42,396 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2022-12-12 14:51:42,396 INFO L295 CegarLoopForPetriNet]: 145 programPoint places, -103 predicate places. [2022-12-12 14:51:42,396 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2022-12-12 14:51:42,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-12-12 14:51:42,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-12 14:51:42,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2022-12-12 14:51:42,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-12 14:51:42,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-12-12 14:51:42,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-12-12 14:51:42,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-12 14:51:42,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 14:51:42,399 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1] [2022-12-12 14:51:42,402 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 14:51:42,402 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 14:51:42,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 02:51:42 BasicIcfg [2022-12-12 14:51:42,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 14:51:42,404 INFO L158 Benchmark]: Toolchain (without parser) took 461809.57ms. Allocated memory was 189.8MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 155.9MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 449.5MB. Max. memory is 8.0GB. [2022-12-12 14:51:42,404 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 167.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 14:51:42,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6413.60ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 155.4MB in the beginning and 103.8MB in the end (delta: 51.5MB). Peak memory consumption was 139.6MB. Max. memory is 8.0GB. [2022-12-12 14:51:42,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 139.03ms. Allocated memory is still 228.6MB. Free memory was 103.8MB in the beginning and 94.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-12-12 14:51:42,405 INFO L158 Benchmark]: Boogie Preprocessor took 42.16ms. Allocated memory is still 228.6MB. Free memory was 94.4MB in the beginning and 90.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-12 14:51:42,405 INFO L158 Benchmark]: RCFGBuilder took 868.67ms. Allocated memory is still 228.6MB. Free memory was 90.2MB in the beginning and 137.1MB in the end (delta: -46.9MB). Peak memory consumption was 3.5MB. Max. memory is 8.0GB. [2022-12-12 14:51:42,405 INFO L158 Benchmark]: TraceAbstraction took 454339.69ms. Allocated memory was 228.6MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 136.0MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 390.5MB. Max. memory is 8.0GB. [2022-12-12 14:51:42,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 167.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 6413.60ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 155.4MB in the beginning and 103.8MB in the end (delta: 51.5MB). Peak memory consumption was 139.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 139.03ms. Allocated memory is still 228.6MB. Free memory was 103.8MB in the beginning and 94.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.16ms. Allocated memory is still 228.6MB. Free memory was 94.4MB in the beginning and 90.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 868.67ms. Allocated memory is still 228.6MB. Free memory was 90.2MB in the beginning and 137.1MB in the end (delta: -46.9MB). Peak memory consumption was 3.5MB. Max. memory is 8.0GB. * TraceAbstraction took 454339.69ms. Allocated memory was 228.6MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 136.0MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 390.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 422.4s, 320 PlacesBefore, 145 PlacesAfterwards, 328 TransitionsBefore, 149 TransitionsAfterwards, 10680 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 175 TrivialYvCompositions, 119 ConcurrentYvCompositions, 13 ChoiceCompositions, 311 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33740, independent: 33574, independent conditional: 33574, independent unconditional: 0, dependent: 165, dependent conditional: 165, dependent unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 33740, independent: 33574, independent conditional: 0, independent unconditional: 33574, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 33740, independent: 33574, independent conditional: 0, independent unconditional: 33574, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33740, independent: 33574, independent conditional: 0, independent unconditional: 33574, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11194, independent: 11141, independent conditional: 0, independent unconditional: 11141, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11194, independent: 11099, independent conditional: 0, independent unconditional: 11099, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 95, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2340, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 2154, unknown conditional: 0, unknown unconditional: 2154] ], Cache Queries: [ total: 33740, independent: 22433, independent conditional: 0, independent unconditional: 22433, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 11194, unknown conditional: 0, unknown unconditional: 11194] , Statistics on independence cache: Total cache size (in pairs): 58900, Positive cache size: 58848, Positive conditional cache size: 0, Positive unconditional cache size: 58848, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 452 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 454.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 422.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1602 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1602 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2834 IncrementalHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 21 mSDtfsCounter, 2834 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=364occurred in iteration=1, InterpolantAutomatonStates: 60, 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, 0.7s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 14:51:42,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...