/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:55:03,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:55:03,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:55:03,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:55:03,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:55:03,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:55:03,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:55:03,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:55:03,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:55:03,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:55:03,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:55:03,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:55:03,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:55:03,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:55:03,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:55:03,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:55:03,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:55:03,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:55:03,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:55:03,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:55:03,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:55:03,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:55:03,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:55:03,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:55:03,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:55:03,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:55:03,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:55:03,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:55:03,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:55:03,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:55:03,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:55:03,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:55:03,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:55:03,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:55:03,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:55:03,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:55:03,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:55:03,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:55:03,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:55:03,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:55:03,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:55:03,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:55:03,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:55:03,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:55:03,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:55:03,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:55:03,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:55:03,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:55:03,515 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:55:03,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:55:03,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:55:03,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:55:03,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:55:03,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:55:03,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:55:03,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:55:03,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:55:03,516 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:55:03,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:55:03,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:55:03,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:55:03,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:55:03,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:55:03,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:55:03,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:55:03,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:55:03,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:55:03,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:55:03,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:55:03,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:55:03,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:55:03,518 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:55:03,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:55:03,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:55:03,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:55:03,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:55:03,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:55:03,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:55:03,814 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:55:03,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2022-12-06 16:55:04,715 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:55:05,106 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:55:05,106 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2022-12-06 16:55:05,136 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71c3938d/6d12600cdcba41d1b454155dcca94482/FLAGfe4e60567 [2022-12-06 16:55:05,151 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e71c3938d/6d12600cdcba41d1b454155dcca94482 [2022-12-06 16:55:05,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:55:05,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:55:05,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:55:05,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:55:05,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:55:05,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:55:05" (1/1) ... [2022-12-06 16:55:05,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef3aa10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:05, skipping insertion in model container [2022-12-06 16:55:05,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:55:05" (1/1) ... [2022-12-06 16:55:05,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:55:05,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:55:05,542 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_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2022-12-06 16:55:05,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:05,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:05,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:05,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:05,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:05,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:05,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:05,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:05,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:05,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:05,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:05,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:05,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:05,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:05,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:05,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:05,866 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:55:05,872 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:55:05,878 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:55:05,889 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:55:06,035 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:55:06,043 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:55:06,224 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:55:06,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:06,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:06,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:06,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:06,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:06,640 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:55:06,645 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:55:06,651 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:55:06,821 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:55:06,821 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:55:06,826 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:55:06,827 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:55:07,078 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:55:07,676 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:55:07,687 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:55:07,770 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:55:07,775 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:55:08,142 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:55:08,405 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:55:08,411 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:55:08,634 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:55:08,907 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:55:08,908 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:55:08,908 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:55:10,048 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:55:10,048 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:55:10,051 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:55:10,056 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:55:10,059 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:55:10,659 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:55:10,662 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:55:10,707 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:55:10,708 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:55:10,709 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:55:10,711 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:55:10,711 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:55:10,711 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:55:10,717 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:55:10,718 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:55:10,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:55:10,757 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:55:10,769 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_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2022-12-06 16:55:10,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,778 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:55:10,778 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:55:10,778 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:55:10,779 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:55:10,782 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:55:10,783 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:55:10,784 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:55:10,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:55:10,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:55:10,798 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:55:10,798 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:55:10,798 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:55:10,841 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:55:10,842 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:55:10,842 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:55:10,842 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:55:10,847 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:55:10,859 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:55:10,860 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:55:10,862 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:55:10,862 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:55:10,867 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:55:10,870 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:55:10,871 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:55:10,896 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:55:10,899 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:55:10,900 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:55:10,900 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:55:10,949 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:55:10,950 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:55:10,951 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:55:10,954 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:55:10,955 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:55:10,983 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:55:10,984 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:55:10,988 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:55:10,989 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:55:10,989 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:55:10,990 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:55:10,990 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:55:10,991 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:55:10,991 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:55:10,991 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:55:10,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:55:11,344 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:55:11,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11 WrapperNode [2022-12-06 16:55:11,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:55:11,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:55:11,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:55:11,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:55:11,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,475 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 53, statements flattened = 722 [2022-12-06 16:55:11,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:55:11,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:55:11,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:55:11,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:55:11,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,523 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:55:11,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:55:11,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:55:11,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:55:11,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (1/1) ... [2022-12-06 16:55:11,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:55:11,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:11,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:55:11,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:55:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:55:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 16:55:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:55:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-06 16:55:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-06 16:55:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-06 16:55:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:55:11,608 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:55:11,990 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:55:11,991 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:55:12,668 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:55:12,677 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:55:12,677 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-06 16:55:12,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:55:12 BoogieIcfgContainer [2022-12-06 16:55:12,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:55:12,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:55:12,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:55:12,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:55:12,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:55:05" (1/3) ... [2022-12-06 16:55:12,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653f3d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:55:12, skipping insertion in model container [2022-12-06 16:55:12,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:11" (2/3) ... [2022-12-06 16:55:12,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653f3d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:55:12, skipping insertion in model container [2022-12-06 16:55:12,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:55:12" (3/3) ... [2022-12-06 16:55:12,686 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2022-12-06 16:55:12,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:55:12,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-06 16:55:12,701 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:55:12,786 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:55:12,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 738 places, 793 transitions, 1602 flow [2022-12-06 16:55:12,969 INFO L130 PetriNetUnfolder]: 62/791 cut-off events. [2022-12-06 16:55:12,970 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:55:12,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 791 events. 62/791 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1222 event pairs, 0 based on Foata normal form. 0/726 useless extension candidates. Maximal degree in co-relation 719. Up to 9 conditions per place. [2022-12-06 16:55:12,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 738 places, 793 transitions, 1602 flow [2022-12-06 16:55:12,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 728 places, 783 transitions, 1575 flow [2022-12-06 16:55:12,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:55:12,995 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;@2450f5c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:55:12,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-06 16:55:13,063 INFO L130 PetriNetUnfolder]: 17/377 cut-off events. [2022-12-06 16:55:13,063 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:55:13,063 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:13,064 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:13,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:13,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:13,069 INFO L85 PathProgramCache]: Analyzing trace with hash -656113732, now seen corresponding path program 1 times [2022-12-06 16:55:13,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:13,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587664846] [2022-12-06 16:55:13,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:13,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:13,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587664846] [2022-12-06 16:55:13,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587664846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:13,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:55:13,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:55:13,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841156776] [2022-12-06 16:55:13,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:13,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:55:13,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:13,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:55:13,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:55:13,901 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 793 [2022-12-06 16:55:13,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 728 places, 783 transitions, 1575 flow. Second operand has 9 states, 9 states have (on average 725.1111111111111) internal successors, (6526), 9 states have internal predecessors, (6526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:13,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:13,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 793 [2022-12-06 16:55:13,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:14,188 INFO L130 PetriNetUnfolder]: 30/745 cut-off events. [2022-12-06 16:55:14,189 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-12-06 16:55:14,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 745 events. 30/745 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1110 event pairs, 0 based on Foata normal form. 21/732 useless extension candidates. Maximal degree in co-relation 717. Up to 12 conditions per place. [2022-12-06 16:55:14,195 INFO L137 encePairwiseOnDemand]: 745/793 looper letters, 18 selfloop transitions, 16 changer transitions 1/745 dead transitions. [2022-12-06 16:55:14,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 737 places, 745 transitions, 1567 flow [2022-12-06 16:55:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:55:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:55:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 11634 transitions. [2022-12-06 16:55:14,225 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9169293820933165 [2022-12-06 16:55:14,230 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 9 predicate places. [2022-12-06 16:55:14,230 INFO L495 AbstractCegarLoop]: Abstraction has has 737 places, 745 transitions, 1567 flow [2022-12-06 16:55:14,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 725.1111111111111) internal successors, (6526), 9 states have internal predecessors, (6526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:14,234 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:14,234 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:14,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:55:14,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:14,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2011766741, now seen corresponding path program 1 times [2022-12-06 16:55:14,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:14,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852782255] [2022-12-06 16:55:14,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:14,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:14,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:14,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852782255] [2022-12-06 16:55:14,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852782255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:14,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:55:14,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:55:14,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351057774] [2022-12-06 16:55:14,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:14,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:55:14,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:14,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:55:14,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:55:14,861 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 712 out of 793 [2022-12-06 16:55:14,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 737 places, 745 transitions, 1567 flow. Second operand has 6 states, 6 states have (on average 716.6666666666666) internal successors, (4300), 6 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:14,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:14,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 712 of 793 [2022-12-06 16:55:14,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:15,232 INFO L130 PetriNetUnfolder]: 70/1213 cut-off events. [2022-12-06 16:55:15,232 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2022-12-06 16:55:15,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 1213 events. 70/1213 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4133 event pairs, 16 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 1038. Up to 51 conditions per place. [2022-12-06 16:55:15,237 INFO L137 encePairwiseOnDemand]: 783/793 looper letters, 52 selfloop transitions, 9 changer transitions 1/760 dead transitions. [2022-12-06 16:55:15,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 742 places, 760 transitions, 1744 flow [2022-12-06 16:55:15,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 16:55:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 16:55:15,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5758 transitions. [2022-12-06 16:55:15,248 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9076292559899117 [2022-12-06 16:55:15,249 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 14 predicate places. [2022-12-06 16:55:15,249 INFO L495 AbstractCegarLoop]: Abstraction has has 742 places, 760 transitions, 1744 flow [2022-12-06 16:55:15,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 716.6666666666666) internal successors, (4300), 6 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:15,255 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:15,255 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:15,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:55:15,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:15,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:15,256 INFO L85 PathProgramCache]: Analyzing trace with hash 579851370, now seen corresponding path program 1 times [2022-12-06 16:55:15,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:15,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157008692] [2022-12-06 16:55:15,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:15,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:15,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:15,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157008692] [2022-12-06 16:55:15,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157008692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:15,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:55:15,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:55:15,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566459220] [2022-12-06 16:55:15,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:15,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:55:15,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:15,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:55:15,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:55:15,840 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 718 out of 793 [2022-12-06 16:55:15,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 742 places, 760 transitions, 1744 flow. Second operand has 6 states, 6 states have (on average 722.8333333333334) internal successors, (4337), 6 states have internal predecessors, (4337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:15,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:15,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 718 of 793 [2022-12-06 16:55:15,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:16,248 INFO L130 PetriNetUnfolder]: 132/1679 cut-off events. [2022-12-06 16:55:16,248 INFO L131 PetriNetUnfolder]: For 586/748 co-relation queries the response was YES. [2022-12-06 16:55:16,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2249 conditions, 1679 events. 132/1679 cut-off events. For 586/748 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8600 event pairs, 22 based on Foata normal form. 0/1565 useless extension candidates. Maximal degree in co-relation 1077. Up to 102 conditions per place. [2022-12-06 16:55:16,256 INFO L137 encePairwiseOnDemand]: 785/793 looper letters, 68 selfloop transitions, 23 changer transitions 9/806 dead transitions. [2022-12-06 16:55:16,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 753 places, 806 transitions, 2206 flow [2022-12-06 16:55:16,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:55:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:55:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8686 transitions. [2022-12-06 16:55:16,268 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9127784783522488 [2022-12-06 16:55:16,269 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 25 predicate places. [2022-12-06 16:55:16,269 INFO L495 AbstractCegarLoop]: Abstraction has has 753 places, 806 transitions, 2206 flow [2022-12-06 16:55:16,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 722.8333333333334) internal successors, (4337), 6 states have internal predecessors, (4337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:16,271 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:16,271 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:16,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:55:16,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:16,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:16,273 INFO L85 PathProgramCache]: Analyzing trace with hash -859937081, now seen corresponding path program 1 times [2022-12-06 16:55:16,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:16,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992304891] [2022-12-06 16:55:16,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:16,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:16,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:16,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992304891] [2022-12-06 16:55:16,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992304891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:16,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:55:16,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:55:16,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523620377] [2022-12-06 16:55:16,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:16,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:55:16,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:16,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:55:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:55:16,736 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 735 out of 793 [2022-12-06 16:55:16,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 753 places, 806 transitions, 2206 flow. Second operand has 5 states, 5 states have (on average 736.4) internal successors, (3682), 5 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:16,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:16,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 735 of 793 [2022-12-06 16:55:16,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:17,082 INFO L130 PetriNetUnfolder]: 186/2203 cut-off events. [2022-12-06 16:55:17,082 INFO L131 PetriNetUnfolder]: For 1344/1587 co-relation queries the response was YES. [2022-12-06 16:55:17,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3126 conditions, 2203 events. 186/2203 cut-off events. For 1344/1587 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 11679 event pairs, 33 based on Foata normal form. 0/2044 useless extension candidates. Maximal degree in co-relation 1283. Up to 140 conditions per place. [2022-12-06 16:55:17,097 INFO L137 encePairwiseOnDemand]: 786/793 looper letters, 46 selfloop transitions, 6 changer transitions 13/823 dead transitions. [2022-12-06 16:55:17,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 823 transitions, 2491 flow [2022-12-06 16:55:17,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:55:17,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:55:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4441 transitions. [2022-12-06 16:55:17,103 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9333753678015974 [2022-12-06 16:55:17,103 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 30 predicate places. [2022-12-06 16:55:17,104 INFO L495 AbstractCegarLoop]: Abstraction has has 758 places, 823 transitions, 2491 flow [2022-12-06 16:55:17,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 736.4) internal successors, (3682), 5 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:17,105 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:17,106 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:17,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:55:17,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:17,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:17,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1630285136, now seen corresponding path program 1 times [2022-12-06 16:55:17,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:17,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781289785] [2022-12-06 16:55:17,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:17,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:17,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:17,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781289785] [2022-12-06 16:55:17,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781289785] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:17,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353765904] [2022-12-06 16:55:17,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:17,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:17,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:17,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:55:17,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 16:55:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:18,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-06 16:55:18,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:18,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:55:18,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:55:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:18,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:18,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353765904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:18,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:18,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-06 16:55:18,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999089914] [2022-12-06 16:55:18,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:18,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:55:18,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:18,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:55:18,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:55:18,319 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 696 out of 793 [2022-12-06 16:55:18,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 758 places, 823 transitions, 2491 flow. Second operand has 7 states, 7 states have (on average 702.1428571428571) internal successors, (4915), 7 states have internal predecessors, (4915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:18,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:18,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 696 of 793 [2022-12-06 16:55:18,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:19,784 INFO L130 PetriNetUnfolder]: 1538/8631 cut-off events. [2022-12-06 16:55:19,784 INFO L131 PetriNetUnfolder]: For 5884/6149 co-relation queries the response was YES. [2022-12-06 16:55:19,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14406 conditions, 8631 events. 1538/8631 cut-off events. For 5884/6149 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 68751 event pairs, 538 based on Foata normal form. 12/7955 useless extension candidates. Maximal degree in co-relation 4067. Up to 759 conditions per place. [2022-12-06 16:55:19,827 INFO L137 encePairwiseOnDemand]: 784/793 looper letters, 133 selfloop transitions, 21 changer transitions 80/939 dead transitions. [2022-12-06 16:55:19,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 769 places, 939 transitions, 3878 flow [2022-12-06 16:55:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:55:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:55:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8477 transitions. [2022-12-06 16:55:19,838 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8908154686843212 [2022-12-06 16:55:19,839 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 41 predicate places. [2022-12-06 16:55:19,839 INFO L495 AbstractCegarLoop]: Abstraction has has 769 places, 939 transitions, 3878 flow [2022-12-06 16:55:19,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 702.1428571428571) internal successors, (4915), 7 states have internal predecessors, (4915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:19,841 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:19,841 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:19,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 16:55:20,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:20,049 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:20,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1897198957, now seen corresponding path program 1 times [2022-12-06 16:55:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:20,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293976770] [2022-12-06 16:55:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:20,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:20,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:20,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293976770] [2022-12-06 16:55:20,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293976770] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:20,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953166791] [2022-12-06 16:55:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:20,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:20,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:20,473 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:55:20,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 16:55:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:21,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 85 conjunts are in the unsatisfiable core [2022-12-06 16:55:21,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:21,232 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:21,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:21,258 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-06 16:55:21,307 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,361 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:55:21,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:55:21,407 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,448 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,482 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,526 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:55:21,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:55:21,576 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,607 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,640 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,677 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,709 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,755 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,853 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-06 16:55:21,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 42 [2022-12-06 16:55:21,918 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:21,956 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:21,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:22,004 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:55:22,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:55:22,043 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:22,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:22,076 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:22,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:22,115 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:22,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:55:22,209 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:22,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-12-06 16:55:22,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:55:22,334 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:55:22,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-12-06 16:55:22,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-12-06 16:55:22,878 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:55:22,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:55:22,899 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:55:22,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-12-06 16:55:23,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:55:23,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:55:23,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:55:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:23,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:23,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953166791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:23,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:23,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-06 16:55:23,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051099913] [2022-12-06 16:55:23,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:23,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:55:23,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:55:23,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-12-06 16:55:23,192 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 643 out of 793 [2022-12-06 16:55:23,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 769 places, 939 transitions, 3878 flow. Second operand has 14 states, 14 states have (on average 649.2857142857143) internal successors, (9090), 14 states have internal predecessors, (9090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:23,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:23,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 643 of 793 [2022-12-06 16:55:23,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:25,561 INFO L130 PetriNetUnfolder]: 1592/9669 cut-off events. [2022-12-06 16:55:25,562 INFO L131 PetriNetUnfolder]: For 8533/10489 co-relation queries the response was YES. [2022-12-06 16:55:25,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18459 conditions, 9669 events. 1592/9669 cut-off events. For 8533/10489 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 81887 event pairs, 440 based on Foata normal form. 153/9118 useless extension candidates. Maximal degree in co-relation 5089. Up to 759 conditions per place. [2022-12-06 16:55:25,611 INFO L137 encePairwiseOnDemand]: 778/793 looper letters, 183 selfloop transitions, 30 changer transitions 146/1016 dead transitions. [2022-12-06 16:55:25,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 785 places, 1016 transitions, 5272 flow [2022-12-06 16:55:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:55:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:55:25,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 11092 transitions. [2022-12-06 16:55:25,727 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8227876270306357 [2022-12-06 16:55:25,727 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 57 predicate places. [2022-12-06 16:55:25,727 INFO L495 AbstractCegarLoop]: Abstraction has has 785 places, 1016 transitions, 5272 flow [2022-12-06 16:55:25,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 649.2857142857143) internal successors, (9090), 14 states have internal predecessors, (9090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:25,732 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:25,732 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:25,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 16:55:25,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-06 16:55:25,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:25,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:25,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1596722274, now seen corresponding path program 1 times [2022-12-06 16:55:25,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:25,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852091440] [2022-12-06 16:55:25,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:25,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:27,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:27,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852091440] [2022-12-06 16:55:27,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852091440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:27,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:55:27,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-06 16:55:27,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563437161] [2022-12-06 16:55:27,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:27,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:55:27,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:27,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:55:27,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-12-06 16:55:27,716 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 658 out of 793 [2022-12-06 16:55:27,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 785 places, 1016 transitions, 5272 flow. Second operand has 16 states, 16 states have (on average 663.375) internal successors, (10614), 16 states have internal predecessors, (10614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:27,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:27,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 658 of 793 [2022-12-06 16:55:27,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:29,814 INFO L130 PetriNetUnfolder]: 1805/10343 cut-off events. [2022-12-06 16:55:29,814 INFO L131 PetriNetUnfolder]: For 13593/15769 co-relation queries the response was YES. [2022-12-06 16:55:29,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22102 conditions, 10343 events. 1805/10343 cut-off events. For 13593/15769 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 88275 event pairs, 400 based on Foata normal form. 192/9840 useless extension candidates. Maximal degree in co-relation 6140. Up to 759 conditions per place. [2022-12-06 16:55:29,862 INFO L137 encePairwiseOnDemand]: 774/793 looper letters, 138 selfloop transitions, 25 changer transitions 231/1064 dead transitions. [2022-12-06 16:55:29,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 798 places, 1064 transitions, 6633 flow [2022-12-06 16:55:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:55:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:55:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 10646 transitions. [2022-12-06 16:55:29,876 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8390605296343001 [2022-12-06 16:55:29,876 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 70 predicate places. [2022-12-06 16:55:29,876 INFO L495 AbstractCegarLoop]: Abstraction has has 798 places, 1064 transitions, 6633 flow [2022-12-06 16:55:29,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 663.375) internal successors, (10614), 16 states have internal predecessors, (10614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:29,879 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:29,879 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:29,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:55:29,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:29,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:29,880 INFO L85 PathProgramCache]: Analyzing trace with hash -645076954, now seen corresponding path program 1 times [2022-12-06 16:55:29,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:29,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468032689] [2022-12-06 16:55:29,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:29,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:30,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:30,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468032689] [2022-12-06 16:55:30,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468032689] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:30,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357139661] [2022-12-06 16:55:30,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:30,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:30,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:30,316 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:55:30,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 16:55:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:30,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-06 16:55:30,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:31,046 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:31,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:31,063 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:31,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:31,083 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-06 16:55:31,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-06 16:55:31,103 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:55:31,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 16:55:31,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:55:31,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:55:31,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:55:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:31,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:31,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357139661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:31,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:31,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-06 16:55:31,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436922059] [2022-12-06 16:55:31,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:31,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:55:31,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:31,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:55:31,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-12-06 16:55:31,725 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 793 [2022-12-06 16:55:31,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 798 places, 1064 transitions, 6633 flow. Second operand has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:31,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:31,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 793 [2022-12-06 16:55:31,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:36,167 INFO L130 PetriNetUnfolder]: 4787/21619 cut-off events. [2022-12-06 16:55:36,168 INFO L131 PetriNetUnfolder]: For 29379/30300 co-relation queries the response was YES. [2022-12-06 16:55:36,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51696 conditions, 21619 events. 4787/21619 cut-off events. For 29379/30300 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 216133 event pairs, 273 based on Foata normal form. 34/20569 useless extension candidates. Maximal degree in co-relation 14934. Up to 3639 conditions per place. [2022-12-06 16:55:36,248 INFO L137 encePairwiseOnDemand]: 777/793 looper letters, 186 selfloop transitions, 9 changer transitions 508/1337 dead transitions. [2022-12-06 16:55:36,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 812 places, 1337 transitions, 10678 flow [2022-12-06 16:55:36,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 16:55:36,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 16:55:36,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 9833 transitions. [2022-12-06 16:55:36,255 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8266498528793611 [2022-12-06 16:55:36,256 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 84 predicate places. [2022-12-06 16:55:36,256 INFO L495 AbstractCegarLoop]: Abstraction has has 812 places, 1337 transitions, 10678 flow [2022-12-06 16:55:36,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:36,258 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:36,258 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:36,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-06 16:55:36,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:36,466 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:36,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:36,467 INFO L85 PathProgramCache]: Analyzing trace with hash 512710330, now seen corresponding path program 2 times [2022-12-06 16:55:36,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:36,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333621204] [2022-12-06 16:55:36,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:36,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:36,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:36,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333621204] [2022-12-06 16:55:36,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333621204] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:36,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385338330] [2022-12-06 16:55:36,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:55:36,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:36,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:55:36,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 16:55:37,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 16:55:37,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:55:37,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-06 16:55:37,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:37,659 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:37,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:37,679 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:37,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:37,693 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-06 16:55:37,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-06 16:55:37,734 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-06 16:55:37,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:55:38,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:55:38,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:55:38,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:55:38,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:38,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:38,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385338330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:38,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:38,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2022-12-06 16:55:38,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898606409] [2022-12-06 16:55:38,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:38,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 16:55:38,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:38,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 16:55:38,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-12-06 16:55:38,887 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 636 out of 793 [2022-12-06 16:55:38,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 812 places, 1337 transitions, 10678 flow. Second operand has 19 states, 19 states have (on average 641.2631578947369) internal successors, (12184), 19 states have internal predecessors, (12184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:38,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:38,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 636 of 793 [2022-12-06 16:55:38,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:45,211 INFO L130 PetriNetUnfolder]: 6708/25709 cut-off events. [2022-12-06 16:55:45,211 INFO L131 PetriNetUnfolder]: For 51847/57110 co-relation queries the response was YES. [2022-12-06 16:55:45,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74947 conditions, 25709 events. 6708/25709 cut-off events. For 51847/57110 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 258334 event pairs, 302 based on Foata normal form. 230/24716 useless extension candidates. Maximal degree in co-relation 21789. Up to 5264 conditions per place. [2022-12-06 16:55:45,300 INFO L137 encePairwiseOnDemand]: 770/793 looper letters, 230 selfloop transitions, 30 changer transitions 722/1611 dead transitions. [2022-12-06 16:55:45,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 852 places, 1611 transitions, 15214 flow [2022-12-06 16:55:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-06 16:55:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-06 16:55:45,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 26434 transitions. [2022-12-06 16:55:45,313 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8130286346999661 [2022-12-06 16:55:45,313 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 124 predicate places. [2022-12-06 16:55:45,314 INFO L495 AbstractCegarLoop]: Abstraction has has 852 places, 1611 transitions, 15214 flow [2022-12-06 16:55:45,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 641.2631578947369) internal successors, (12184), 19 states have internal predecessors, (12184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:45,316 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:45,316 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:45,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-06 16:55:45,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:45,525 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:45,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:45,525 INFO L85 PathProgramCache]: Analyzing trace with hash 177352004, now seen corresponding path program 3 times [2022-12-06 16:55:45,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:45,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057405150] [2022-12-06 16:55:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:45,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:45,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:45,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057405150] [2022-12-06 16:55:45,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057405150] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:45,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248085191] [2022-12-06 16:55:45,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 16:55:45,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:45,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:45,864 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:55:45,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 16:55:46,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-06 16:55:46,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:55:46,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-06 16:55:46,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:46,558 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:46,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:46,591 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:46,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:46,610 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:46,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:46,622 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:55:46,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 16:55:47,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:55:47,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:55:47,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:55:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:47,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:47,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248085191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:47,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:47,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-06 16:55:47,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081716581] [2022-12-06 16:55:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:47,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:55:47,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:55:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-12-06 16:55:47,330 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 793 [2022-12-06 16:55:47,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 852 places, 1611 transitions, 15214 flow. Second operand has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:47,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:47,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 793 [2022-12-06 16:55:47,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:54,233 INFO L130 PetriNetUnfolder]: 8116/31050 cut-off events. [2022-12-06 16:55:54,233 INFO L131 PetriNetUnfolder]: For 83719/93987 co-relation queries the response was YES. [2022-12-06 16:55:54,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103522 conditions, 31050 events. 8116/31050 cut-off events. For 83719/93987 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 329392 event pairs, 324 based on Foata normal form. 511/30177 useless extension candidates. Maximal degree in co-relation 30003. Up to 7193 conditions per place. [2022-12-06 16:55:54,352 INFO L137 encePairwiseOnDemand]: 776/793 looper letters, 220 selfloop transitions, 9 changer transitions 946/1828 dead transitions. [2022-12-06 16:55:54,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 875 places, 1828 transitions, 20752 flow [2022-12-06 16:55:54,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 16:55:54,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 16:55:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 15664 transitions. [2022-12-06 16:55:54,360 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8230348886086591 [2022-12-06 16:55:54,360 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 147 predicate places. [2022-12-06 16:55:54,360 INFO L495 AbstractCegarLoop]: Abstraction has has 875 places, 1828 transitions, 20752 flow [2022-12-06 16:55:54,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:54,362 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:54,363 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:54,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-06 16:55:54,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-06 16:55:54,571 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:55:54,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:54,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1536350538, now seen corresponding path program 4 times [2022-12-06 16:55:54,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:54,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260368926] [2022-12-06 16:55:54,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:54,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:54,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:54,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:54,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260368926] [2022-12-06 16:55:54,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260368926] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:54,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266484467] [2022-12-06 16:55:54,925 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 16:55:54,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:54,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:54,926 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:55:54,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 16:55:55,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 16:55:55,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:55:55,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-06 16:55:55,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:56,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:55:56,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:55:56,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-06 16:55:56,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:55:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:56,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:56,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266484467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:56,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:56,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2022-12-06 16:55:56,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129552601] [2022-12-06 16:55:56,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:56,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 16:55:56,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:56,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 16:55:56,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-12-06 16:55:56,513 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 664 out of 793 [2022-12-06 16:55:56,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 875 places, 1828 transitions, 20752 flow. Second operand has 19 states, 19 states have (on average 667.421052631579) internal successors, (12681), 19 states have internal predecessors, (12681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:56,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:56,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 664 of 793 [2022-12-06 16:55:56,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:56:13,016 INFO L130 PetriNetUnfolder]: 18490/70512 cut-off events. [2022-12-06 16:56:13,016 INFO L131 PetriNetUnfolder]: For 243666/263659 co-relation queries the response was YES. [2022-12-06 16:56:13,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253897 conditions, 70512 events. 18490/70512 cut-off events. For 243666/263659 co-relation queries the response was YES. Maximal size of possible extension queue 898. Compared 861807 event pairs, 1339 based on Foata normal form. 634/67770 useless extension candidates. Maximal degree in co-relation 75023. Up to 16071 conditions per place. [2022-12-06 16:56:13,300 INFO L137 encePairwiseOnDemand]: 771/793 looper letters, 346 selfloop transitions, 33 changer transitions 1983/3035 dead transitions. [2022-12-06 16:56:13,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 910 places, 3035 transitions, 45747 flow [2022-12-06 16:56:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-06 16:56:13,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-06 16:56:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 24287 transitions. [2022-12-06 16:56:13,311 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8507426089393303 [2022-12-06 16:56:13,312 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 182 predicate places. [2022-12-06 16:56:13,312 INFO L495 AbstractCegarLoop]: Abstraction has has 910 places, 3035 transitions, 45747 flow [2022-12-06 16:56:13,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 667.421052631579) internal successors, (12681), 19 states have internal predecessors, (12681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:13,314 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:13,314 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:13,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-06 16:56:13,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:56:13,524 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:56:13,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:13,525 INFO L85 PathProgramCache]: Analyzing trace with hash -589510862, now seen corresponding path program 5 times [2022-12-06 16:56:13,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:13,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727643122] [2022-12-06 16:56:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:13,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:56:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:56:13,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:56:13,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727643122] [2022-12-06 16:56:13,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727643122] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:56:13,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171074946] [2022-12-06 16:56:13,882 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-06 16:56:13,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:56:13,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:56:13,884 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:56:13,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-06 16:56:14,378 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 16:56:14,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:56:14,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-06 16:56:14,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:56:15,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:56:15,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:56:15,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-06 16:56:15,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:56:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:56:15,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:56:15,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171074946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:56:15,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:56:15,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2022-12-06 16:56:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015436261] [2022-12-06 16:56:15,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:56:15,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 16:56:15,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:56:15,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 16:56:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2022-12-06 16:56:15,448 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 664 out of 793 [2022-12-06 16:56:15,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 910 places, 3035 transitions, 45747 flow. Second operand has 18 states, 18 states have (on average 667.6111111111111) internal successors, (12017), 18 states have internal predecessors, (12017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:15,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:56:15,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 664 of 793 [2022-12-06 16:56:15,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:56:37,501 INFO L130 PetriNetUnfolder]: 18861/72319 cut-off events. [2022-12-06 16:56:37,501 INFO L131 PetriNetUnfolder]: For 311446/342308 co-relation queries the response was YES. [2022-12-06 16:56:37,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287618 conditions, 72319 events. 18861/72319 cut-off events. For 311446/342308 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 890834 event pairs, 1599 based on Foata normal form. 1131/70000 useless extension candidates. Maximal degree in co-relation 85002. Up to 16672 conditions per place. [2022-12-06 16:56:37,796 INFO L137 encePairwiseOnDemand]: 772/793 looper letters, 321 selfloop transitions, 26 changer transitions 2098/3118 dead transitions. [2022-12-06 16:56:37,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 950 places, 3118 transitions, 52157 flow [2022-12-06 16:56:37,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-06 16:56:37,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-06 16:56:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 27607 transitions. [2022-12-06 16:56:37,815 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8491065112416571 [2022-12-06 16:56:37,815 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 222 predicate places. [2022-12-06 16:56:37,816 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 3118 transitions, 52157 flow [2022-12-06 16:56:37,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 667.6111111111111) internal successors, (12017), 18 states have internal predecessors, (12017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:37,817 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:37,817 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:37,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-06 16:56:38,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:56:38,026 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:56:38,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:38,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2081254612, now seen corresponding path program 6 times [2022-12-06 16:56:38,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:38,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028661687] [2022-12-06 16:56:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:56:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:56:38,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:56:38,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028661687] [2022-12-06 16:56:38,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028661687] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:56:38,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479994521] [2022-12-06 16:56:38,398 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-06 16:56:38,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:56:38,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:56:38,399 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:56:38,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-06 16:56:38,921 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-06 16:56:38,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:56:38,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 102 conjunts are in the unsatisfiable core [2022-12-06 16:56:38,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:56:39,075 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:56:39,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:56:39,110 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:56:39,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:56:39,146 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:56:39,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:56:39,188 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:56:39,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:56:39,253 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:39,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-06 16:56:39,308 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:39,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:39,353 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:39,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:39,400 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:39,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:39,452 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:39,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:39,508 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:56:39,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:56:39,689 INFO L321 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2022-12-06 16:56:39,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 82 [2022-12-06 16:56:40,078 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,121 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,175 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,229 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,284 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,337 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,402 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,452 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,528 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,605 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:40,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:40,804 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:56:40,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-12-06 16:56:41,077 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:56:41,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:56:41,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:56:41,765 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:56:41,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:56:41,791 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:56:41,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-12-06 16:56:42,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:56:42,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:56:42,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:56:42,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:56:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:56:42,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:56:42,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479994521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:56:42,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:56:42,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [6] total 28 [2022-12-06 16:56:42,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376866518] [2022-12-06 16:56:42,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:56:42,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-06 16:56:42,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:56:42,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-06 16:56:42,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2022-12-06 16:56:42,941 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 793 [2022-12-06 16:56:42,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 3118 transitions, 52157 flow. Second operand has 24 states, 24 states have (on average 633.2916666666666) internal successors, (15199), 24 states have internal predecessors, (15199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:42,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:56:42,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 793 [2022-12-06 16:56:42,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:08,842 INFO L130 PetriNetUnfolder]: 19132/73338 cut-off events. [2022-12-06 16:57:08,843 INFO L131 PetriNetUnfolder]: For 378308/425171 co-relation queries the response was YES. [2022-12-06 16:57:09,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322464 conditions, 73338 events. 19132/73338 cut-off events. For 378308/425171 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 907597 event pairs, 1444 based on Foata normal form. 1170/71075 useless extension candidates. Maximal degree in co-relation 95177. Up to 17232 conditions per place. [2022-12-06 16:57:09,167 INFO L137 encePairwiseOnDemand]: 768/793 looper letters, 310 selfloop transitions, 35 changer transitions 2405/3377 dead transitions. [2022-12-06 16:57:09,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 992 places, 3377 transitions, 62351 flow [2022-12-06 16:57:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-06 16:57:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-06 16:57:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 27374 transitions. [2022-12-06 16:57:09,180 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8027801401800639 [2022-12-06 16:57:09,181 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 264 predicate places. [2022-12-06 16:57:09,181 INFO L495 AbstractCegarLoop]: Abstraction has has 992 places, 3377 transitions, 62351 flow [2022-12-06 16:57:09,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 633.2916666666666) internal successors, (15199), 24 states have internal predecessors, (15199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:57:09,182 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:09,182 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:09,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-06 16:57:09,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-06 16:57:09,383 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:57:09,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:09,384 INFO L85 PathProgramCache]: Analyzing trace with hash 495752380, now seen corresponding path program 1 times [2022-12-06 16:57:09,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:09,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783547258] [2022-12-06 16:57:09,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:09,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:57:09,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:09,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783547258] [2022-12-06 16:57:09,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783547258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:09,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:57:09,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:57:09,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777079286] [2022-12-06 16:57:09,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:09,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:57:09,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:09,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:57:09,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:57:09,953 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 729 out of 793 [2022-12-06 16:57:09,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 992 places, 3377 transitions, 62351 flow. Second operand has 9 states, 9 states have (on average 731.0) internal successors, (6579), 9 states have internal predecessors, (6579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:57:09,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:09,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 729 of 793 [2022-12-06 16:57:09,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:40,491 INFO L130 PetriNetUnfolder]: 27620/104641 cut-off events. [2022-12-06 16:57:40,491 INFO L131 PetriNetUnfolder]: For 578189/627957 co-relation queries the response was YES. [2022-12-06 16:57:40,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471643 conditions, 104641 events. 27620/104641 cut-off events. For 578189/627957 co-relation queries the response was YES. Maximal size of possible extension queue 1358. Compared 1377173 event pairs, 1721 based on Foata normal form. 117/99742 useless extension candidates. Maximal degree in co-relation 138641. Up to 27127 conditions per place. [2022-12-06 16:57:40,981 INFO L137 encePairwiseOnDemand]: 782/793 looper letters, 80 selfloop transitions, 10 changer transitions 2757/3757 dead transitions. [2022-12-06 16:57:40,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 999 places, 3757 transitions, 76341 flow [2022-12-06 16:57:40,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 16:57:40,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 16:57:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5874 transitions. [2022-12-06 16:57:40,984 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9259142496847415 [2022-12-06 16:57:40,984 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 271 predicate places. [2022-12-06 16:57:40,984 INFO L495 AbstractCegarLoop]: Abstraction has has 999 places, 3757 transitions, 76341 flow [2022-12-06 16:57:40,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 731.0) internal successors, (6579), 9 states have internal predecessors, (6579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:57:40,985 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:40,985 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:40,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 16:57:40,986 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:57:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:40,986 INFO L85 PathProgramCache]: Analyzing trace with hash -605694239, now seen corresponding path program 1 times [2022-12-06 16:57:40,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:40,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538176768] [2022-12-06 16:57:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:40,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:41,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:41,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:41,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538176768] [2022-12-06 16:57:41,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538176768] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:57:41,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697971468] [2022-12-06 16:57:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:41,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:57:41,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:57:41,327 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:57:41,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-06 16:57:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:41,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-06 16:57:41,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:57:42,197 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:57:42,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:57:42,213 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:57:42,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:57:42,226 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-06 16:57:42,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-06 16:57:42,243 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:57:42,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 16:57:42,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:57:42,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:57:42,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:57:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:57:42,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:57:42,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697971468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:42,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:57:42,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-06 16:57:42,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014065681] [2022-12-06 16:57:42,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:42,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:57:42,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:57:42,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-12-06 16:57:42,893 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 793 [2022-12-06 16:57:42,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 999 places, 3757 transitions, 76341 flow. Second operand has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:57:42,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:42,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 793 [2022-12-06 16:57:42,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:58:24,735 INFO L130 PetriNetUnfolder]: 29053/111361 cut-off events. [2022-12-06 16:58:24,735 INFO L131 PetriNetUnfolder]: For 743784/811299 co-relation queries the response was YES. [2022-12-06 16:58:25,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538270 conditions, 111361 events. 29053/111361 cut-off events. For 743784/811299 co-relation queries the response was YES. Maximal size of possible extension queue 1460. Compared 1487702 event pairs, 1774 based on Foata normal form. 1621/107691 useless extension candidates. Maximal degree in co-relation 158628. Up to 29076 conditions per place. [2022-12-06 16:58:25,275 INFO L137 encePairwiseOnDemand]: 775/793 looper letters, 289 selfloop transitions, 24 changer transitions 2934/3903 dead transitions. [2022-12-06 16:58:25,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 3903 transitions, 86441 flow [2022-12-06 16:58:25,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-06 16:58:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-06 16:58:25,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 20880 transitions. [2022-12-06 16:58:25,285 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8228247162673392 [2022-12-06 16:58:25,285 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 302 predicate places. [2022-12-06 16:58:25,286 INFO L495 AbstractCegarLoop]: Abstraction has has 1030 places, 3903 transitions, 86441 flow [2022-12-06 16:58:25,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:58:25,287 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:58:25,287 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:58:25,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-06 16:58:25,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-06 16:58:25,497 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:58:25,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:58:25,497 INFO L85 PathProgramCache]: Analyzing trace with hash -809527851, now seen corresponding path program 2 times [2022-12-06 16:58:25,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:58:25,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338551151] [2022-12-06 16:58:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:58:25,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:58:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:58:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:58:25,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:58:25,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338551151] [2022-12-06 16:58:25,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338551151] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:58:25,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436858748] [2022-12-06 16:58:25,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:58:25,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:58:25,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:58:25,881 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:58:25,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-06 16:58:26,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 16:58:26,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:58:26,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-06 16:58:26,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:58:26,531 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:58:26,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:58:26,552 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:58:26,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:58:26,569 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:58:26,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:58:26,580 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:58:26,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 16:58:27,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:58:27,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:58:27,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:58:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:58:27,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:58:27,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436858748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:58:27,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:58:27,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-06 16:58:27,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855368028] [2022-12-06 16:58:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:58:27,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:58:27,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:58:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:58:27,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-12-06 16:58:27,203 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 793 [2022-12-06 16:58:27,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1030 places, 3903 transitions, 86441 flow. Second operand has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:58:27,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:58:27,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 793 [2022-12-06 16:58:27,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:12,735 INFO L130 PetriNetUnfolder]: 28938/110650 cut-off events. [2022-12-06 16:59:12,735 INFO L131 PetriNetUnfolder]: For 893483/973196 co-relation queries the response was YES. [2022-12-06 16:59:13,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576940 conditions, 110650 events. 28938/110650 cut-off events. For 893483/973196 co-relation queries the response was YES. Maximal size of possible extension queue 1471. Compared 1477443 event pairs, 1667 based on Foata normal form. 1847/107296 useless extension candidates. Maximal degree in co-relation 170075. Up to 28982 conditions per place. [2022-12-06 16:59:13,399 INFO L137 encePairwiseOnDemand]: 775/793 looper letters, 0 selfloop transitions, 0 changer transitions 3921/3921 dead transitions. [2022-12-06 16:59:13,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1064 places, 3921 transitions, 93251 flow [2022-12-06 16:59:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-06 16:59:13,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-06 16:59:13,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 24090 transitions. [2022-12-06 16:59:13,408 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8210354111993456 [2022-12-06 16:59:13,409 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 336 predicate places. [2022-12-06 16:59:13,409 INFO L495 AbstractCegarLoop]: Abstraction has has 1064 places, 3921 transitions, 93251 flow [2022-12-06 16:59:13,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:13,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-06 16:59:13,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-06 16:59:13,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-06 16:59:13,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-06 16:59:13,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-06 16:59:13,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-06 16:59:13,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-06 16:59:13,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-06 16:59:13,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-06 16:59:13,622 INFO L458 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:13,625 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:59:13,625 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:59:13,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:59:13 BasicIcfg [2022-12-06 16:59:13,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:59:13,628 INFO L158 Benchmark]: Toolchain (without parser) took 248474.61ms. Allocated memory was 208.7MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 172.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2022-12-06 16:59:13,628 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 208.7MB. Free memory was 184.8MB in the beginning and 184.7MB in the end (delta: 88.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:59:13,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6188.23ms. Allocated memory was 208.7MB in the beginning and 272.6MB in the end (delta: 64.0MB). Free memory was 172.9MB in the beginning and 185.0MB in the end (delta: -12.1MB). Peak memory consumption was 154.6MB. Max. memory is 8.0GB. [2022-12-06 16:59:13,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.13ms. Allocated memory is still 272.6MB. Free memory was 185.0MB in the beginning and 174.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-06 16:59:13,629 INFO L158 Benchmark]: Boogie Preprocessor took 55.73ms. Allocated memory is still 272.6MB. Free memory was 174.0MB in the beginning and 168.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-12-06 16:59:13,629 INFO L158 Benchmark]: RCFGBuilder took 1147.66ms. Allocated memory is still 272.6MB. Free memory was 168.2MB in the beginning and 196.6MB in the end (delta: -28.4MB). Peak memory consumption was 58.1MB. Max. memory is 8.0GB. [2022-12-06 16:59:13,629 INFO L158 Benchmark]: TraceAbstraction took 240946.65ms. Allocated memory was 272.6MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 196.1MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2022-12-06 16:59:13,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 208.7MB. Free memory was 184.8MB in the beginning and 184.7MB in the end (delta: 88.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 6188.23ms. Allocated memory was 208.7MB in the beginning and 272.6MB in the end (delta: 64.0MB). Free memory was 172.9MB in the beginning and 185.0MB in the end (delta: -12.1MB). Peak memory consumption was 154.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 130.13ms. Allocated memory is still 272.6MB. Free memory was 185.0MB in the beginning and 174.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.73ms. Allocated memory is still 272.6MB. Free memory was 174.0MB in the beginning and 168.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1147.66ms. Allocated memory is still 272.6MB. Free memory was 168.2MB in the beginning and 196.6MB in the end (delta: -28.4MB). Peak memory consumption was 58.1MB. Max. memory is 8.0GB. * TraceAbstraction took 240946.65ms. Allocated memory was 272.6MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 196.1MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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, 897 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 240.8s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 210.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4205 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4205 mSDsluCounter, 8701 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7486 mSDsCounter, 324 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10682 IncrementalHoareTripleChecker+Invalid, 11006 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 324 mSolverCounterUnsat, 1215 mSDtfsCounter, 10682 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3655 GetRequests, 3152 SyntacticMatches, 4 SemanticMatches, 499 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3651 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93251occurred in iteration=16, InterpolantAutomatonStates: 364, 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: 0.6s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 20.3s InterpolantComputationTime, 8192 NumberOfCodeBlocks, 8164 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 8166 ConstructedInterpolants, 6 QuantifiedInterpolants, 39974 SizeOfPredicates, 208 NumberOfNonLiveVariables, 11080 ConjunctsInSsa, 478 ConjunctsInUnsatCore, 26 InterpolantComputations, 16 PerfectInterpolantSequences, 12/22 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:59:13,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...