/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_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:54:04,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:54:04,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:54:05,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:54:05,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:54:05,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:54:05,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:54:05,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:54:05,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:54:05,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:54:05,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:54:05,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:54:05,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:54:05,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:54:05,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:54:05,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:54:05,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:54:05,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:54:05,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:54:05,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:54:05,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:54:05,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:54:05,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:54:05,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:54:05,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:54:05,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:54:05,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:54:05,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:54:05,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:54:05,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:54:05,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:54:05,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:54:05,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:54:05,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:54:05,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:54:05,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:54:05,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:54:05,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:54:05,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:54:05,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:54:05,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:54:05,069 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 16:54:05,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:54:05,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:54:05,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:54:05,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:54:05,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:54:05,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:54:05,089 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:54:05,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:54:05,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:54:05,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:54:05,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:54:05,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:54:05,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:54:05,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:54:05,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:54:05,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:54:05,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:54:05,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:54:05,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:54:05,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:54:05,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:54:05,092 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:54:05,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:54:05,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:54:05,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:54:05,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:54:05,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:54:05,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:54:05,367 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:54:05,368 INFO L432 ainManager$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_current.i [2022-12-06 16:54:06,402 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:54:06,764 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:54:06,764 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2022-12-06 16:54:06,795 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01573211f/d7ce456b38cd4fe78c1b9f6b2a38ad52/FLAG46be37525 [2022-12-06 16:54:06,815 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01573211f/d7ce456b38cd4fe78c1b9f6b2a38ad52 [2022-12-06 16:54:06,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:54:06,818 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:54:06,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:54:06,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:54:06,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:54:06,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:54:06" (1/1) ... [2022-12-06 16:54:06,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb7d769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:06, skipping insertion in model container [2022-12-06 16:54:06,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:54:06" (1/1) ... [2022-12-06 16:54:06,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:54:06,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:54:07,186 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_current.i[5469,5482] [2022-12-06 16:54:07,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:07,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:07,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:07,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:07,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:07,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:07,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:07,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:07,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:07,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:07,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:07,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:07,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:07,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:07,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:07,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:07,549 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:54:07,556 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:54:07,563 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:54:07,574 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:54:07,747 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:54:07,755 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:54:07,936 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:54:08,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:08,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:08,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:08,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:08,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:08,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:08,251 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:54:08,255 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:54:08,259 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:54:08,370 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:54:08,370 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:54:08,373 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:54:08,373 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:54:08,532 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:54:08,946 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:54:08,955 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:54:09,011 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:54:09,015 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:54:09,262 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:54:09,416 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:54:09,420 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:54:09,566 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:54:09,729 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:54:09,729 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:54:09,729 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:54:10,597 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:54:10,598 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:54:10,601 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:54:10,604 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:54:10,606 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:54:11,043 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:54:11,046 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:54:11,070 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:54:11,070 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:54:11,072 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:54:11,073 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:54:11,073 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:54:11,073 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:54:11,076 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:54:11,077 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:54:11,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:54:11,116 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:54:11,134 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_current.i[5469,5482] [2022-12-06 16:54:11,169 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,173 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:54:11,173 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:54:11,174 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:54:11,174 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:54:11,177 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:54:11,178 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:54:11,179 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:54:11,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:54:11,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:54:11,198 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:54:11,198 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:54:11,199 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:54:11,201 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:54:11,201 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:54:11,201 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:54:11,202 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:54:11,209 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:54:11,220 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:54:11,222 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:54:11,223 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:54:11,223 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:54:11,229 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:54:11,233 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:54:11,234 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:54:11,238 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:54:11,242 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:54:11,242 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:54:11,242 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:54:11,295 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:54:11,295 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:54:11,297 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:54:11,304 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:54:11,307 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:54:11,342 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:54:11,342 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:54:11,346 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:54:11,347 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:54:11,347 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:54:11,348 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:54:11,348 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:54:11,349 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:54:11,349 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:54:11,350 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:54:11,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:54:11,824 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:54:11,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11 WrapperNode [2022-12-06 16:54:11,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:54:11,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:54:11,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:54:11,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:54:11,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,938 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 49, statements flattened = 666 [2022-12-06 16:54:11,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:54:11,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:54:11,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:54:11,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:54:11,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,983 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:11,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:54:11,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:54:11,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:54:11,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:54:11,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (1/1) ... [2022-12-06 16:54:12,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:54:12,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:12,023 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 16:54:12,043 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 16:54:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:54:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 16:54:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:54:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 16:54:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-06 16:54:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-06 16:54:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:54:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:54:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-06 16:54:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-06 16:54:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-06 16:54:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:54:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 16:54:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:54:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:54:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 16:54:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:54:12,062 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 16:54:12,425 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:54:12,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:54:12,939 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:54:12,953 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:54:12,953 INFO L302 CfgBuilder]: Removed 21 assume(true) statements. [2022-12-06 16:54:12,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:54:12 BoogieIcfgContainer [2022-12-06 16:54:12,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:54:12,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:54:12,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:54:12,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:54:12,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:54:06" (1/3) ... [2022-12-06 16:54:12,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426c2417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:54:12, skipping insertion in model container [2022-12-06 16:54:12,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:54:11" (2/3) ... [2022-12-06 16:54:12,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426c2417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:54:12, skipping insertion in model container [2022-12-06 16:54:12,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:54:12" (3/3) ... [2022-12-06 16:54:12,961 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2022-12-06 16:54:12,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:54:12,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-06 16:54:12,978 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:54:13,054 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:54:13,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 686 places, 732 transitions, 1480 flow [2022-12-06 16:54:13,242 INFO L130 PetriNetUnfolder]: 53/730 cut-off events. [2022-12-06 16:54:13,242 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:54:13,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 730 events. 53/730 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1070 event pairs, 0 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 653. Up to 9 conditions per place. [2022-12-06 16:54:13,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 686 places, 732 transitions, 1480 flow [2022-12-06 16:54:13,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 676 places, 722 transitions, 1453 flow [2022-12-06 16:54:13,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:54:13,263 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;@2a0603bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:54:13,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-06 16:54:13,294 INFO L130 PetriNetUnfolder]: 12/342 cut-off events. [2022-12-06 16:54:13,295 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:54:13,295 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:13,295 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] [2022-12-06 16:54:13,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:13,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:13,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1040898291, now seen corresponding path program 1 times [2022-12-06 16:54:13,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:13,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130548465] [2022-12-06 16:54:13,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:13,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:14,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:14,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130548465] [2022-12-06 16:54:14,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130548465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:14,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:54:14,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:54:14,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493814219] [2022-12-06 16:54:14,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:14,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:54:14,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:14,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:54:14,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:54:14,061 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 668 out of 732 [2022-12-06 16:54:14,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 676 places, 722 transitions, 1453 flow. Second operand has 9 states, 9 states have (on average 670.0) internal successors, (6030), 9 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:14,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:14,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 668 of 732 [2022-12-06 16:54:14,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:14,325 INFO L130 PetriNetUnfolder]: 27/690 cut-off events. [2022-12-06 16:54:14,326 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-12-06 16:54:14,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 690 events. 27/690 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 952 event pairs, 0 based on Foata normal form. 17/676 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-12-06 16:54:14,330 INFO L137 encePairwiseOnDemand]: 690/732 looper letters, 18 selfloop transitions, 16 changer transitions 1/690 dead transitions. [2022-12-06 16:54:14,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 690 transitions, 1457 flow [2022-12-06 16:54:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:54:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:54:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 10748 transitions. [2022-12-06 16:54:14,384 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.917691256830601 [2022-12-06 16:54:14,386 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 9 predicate places. [2022-12-06 16:54:14,386 INFO L495 AbstractCegarLoop]: Abstraction has has 685 places, 690 transitions, 1457 flow [2022-12-06 16:54:14,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 670.0) internal successors, (6030), 9 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:14,389 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:14,389 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 16:54:14,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:54:14,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:14,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:14,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2067762182, now seen corresponding path program 1 times [2022-12-06 16:54:14,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:14,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131954474] [2022-12-06 16:54:14,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:14,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:14,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:14,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131954474] [2022-12-06 16:54:14,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131954474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:14,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:54:14,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:54:14,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697779370] [2022-12-06 16:54:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:14,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:54:14,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:14,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:54:14,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:54:14,910 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 658 out of 732 [2022-12-06 16:54:14,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 690 transitions, 1457 flow. Second operand has 6 states, 6 states have (on average 662.6666666666666) internal successors, (3976), 6 states have internal predecessors, (3976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:14,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:14,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 658 of 732 [2022-12-06 16:54:14,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:15,289 INFO L130 PetriNetUnfolder]: 72/1211 cut-off events. [2022-12-06 16:54:15,289 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-06 16:54:15,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1371 conditions, 1211 events. 72/1211 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3632 event pairs, 12 based on Foata normal form. 0/1135 useless extension candidates. Maximal degree in co-relation 988. Up to 46 conditions per place. [2022-12-06 16:54:15,295 INFO L137 encePairwiseOnDemand]: 722/732 looper letters, 50 selfloop transitions, 9 changer transitions 1/704 dead transitions. [2022-12-06 16:54:15,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 704 transitions, 1628 flow [2022-12-06 16:54:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 16:54:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 16:54:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5324 transitions. [2022-12-06 16:54:15,302 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9091530054644809 [2022-12-06 16:54:15,302 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 14 predicate places. [2022-12-06 16:54:15,302 INFO L495 AbstractCegarLoop]: Abstraction has has 690 places, 704 transitions, 1628 flow [2022-12-06 16:54:15,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 662.6666666666666) internal successors, (3976), 6 states have internal predecessors, (3976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:15,304 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:15,305 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] [2022-12-06 16:54:15,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:54:15,305 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:15,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:15,305 INFO L85 PathProgramCache]: Analyzing trace with hash 444713056, now seen corresponding path program 1 times [2022-12-06 16:54:15,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:15,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015722338] [2022-12-06 16:54:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:15,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:15,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:15,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015722338] [2022-12-06 16:54:15,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015722338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:15,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:54:15,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:54:15,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811022716] [2022-12-06 16:54:15,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:15,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:54:15,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:15,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:54:15,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:54:15,742 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 664 out of 732 [2022-12-06 16:54:15,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 704 transitions, 1628 flow. Second operand has 6 states, 6 states have (on average 668.5) internal successors, (4011), 6 states have internal predecessors, (4011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:15,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:15,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 664 of 732 [2022-12-06 16:54:15,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:16,144 INFO L130 PetriNetUnfolder]: 225/2344 cut-off events. [2022-12-06 16:54:16,144 INFO L131 PetriNetUnfolder]: For 340/344 co-relation queries the response was YES. [2022-12-06 16:54:16,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2956 conditions, 2344 events. 225/2344 cut-off events. For 340/344 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 12554 event pairs, 18 based on Foata normal form. 0/2156 useless extension candidates. Maximal degree in co-relation 1269. Up to 90 conditions per place. [2022-12-06 16:54:16,155 INFO L137 encePairwiseOnDemand]: 724/732 looper letters, 78 selfloop transitions, 23 changer transitions 1/754 dead transitions. [2022-12-06 16:54:16,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 701 places, 754 transitions, 2130 flow [2022-12-06 16:54:16,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:54:16,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:54:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8039 transitions. [2022-12-06 16:54:16,165 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9151867030965392 [2022-12-06 16:54:16,166 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 25 predicate places. [2022-12-06 16:54:16,166 INFO L495 AbstractCegarLoop]: Abstraction has has 701 places, 754 transitions, 2130 flow [2022-12-06 16:54:16,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 668.5) internal successors, (4011), 6 states have internal predecessors, (4011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:16,168 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:16,168 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:54:16,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:54:16,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:16,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:16,169 INFO L85 PathProgramCache]: Analyzing trace with hash 263238215, now seen corresponding path program 1 times [2022-12-06 16:54:16,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:16,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80577780] [2022-12-06 16:54:16,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:17,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:17,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80577780] [2022-12-06 16:54:17,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80577780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:17,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:54:17,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:54:17,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49227765] [2022-12-06 16:54:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:17,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:54:17,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:17,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:54:17,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:54:17,293 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 732 [2022-12-06 16:54:17,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 701 places, 754 transitions, 2130 flow. Second operand has 12 states, 12 states have (on average 633.9166666666666) internal successors, (7607), 12 states have internal predecessors, (7607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:17,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:17,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 732 [2022-12-06 16:54:17,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:17,908 INFO L130 PetriNetUnfolder]: 224/2315 cut-off events. [2022-12-06 16:54:17,908 INFO L131 PetriNetUnfolder]: For 444/450 co-relation queries the response was YES. [2022-12-06 16:54:17,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3202 conditions, 2315 events. 224/2315 cut-off events. For 444/450 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 12329 event pairs, 4 based on Foata normal form. 0/2137 useless extension candidates. Maximal degree in co-relation 1431. Up to 88 conditions per place. [2022-12-06 16:54:17,922 INFO L137 encePairwiseOnDemand]: 720/732 looper letters, 127 selfloop transitions, 24 changer transitions 1/770 dead transitions. [2022-12-06 16:54:17,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 711 places, 770 transitions, 2604 flow [2022-12-06 16:54:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:54:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:54:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 8263 transitions. [2022-12-06 16:54:17,934 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8683270281630937 [2022-12-06 16:54:17,934 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 35 predicate places. [2022-12-06 16:54:17,934 INFO L495 AbstractCegarLoop]: Abstraction has has 711 places, 770 transitions, 2604 flow [2022-12-06 16:54:17,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 633.9166666666666) internal successors, (7607), 12 states have internal predecessors, (7607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:17,938 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:17,938 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:54:17,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:54:17,939 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:17,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash -385185696, now seen corresponding path program 1 times [2022-12-06 16:54:17,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:17,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346072640] [2022-12-06 16:54:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:17,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:18,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:18,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346072640] [2022-12-06 16:54:18,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346072640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:18,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:54:18,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:54:18,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256098477] [2022-12-06 16:54:18,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:18,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:54:18,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:18,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:54:18,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:54:18,295 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 680 out of 732 [2022-12-06 16:54:18,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 711 places, 770 transitions, 2604 flow. Second operand has 5 states, 5 states have (on average 681.6) internal successors, (3408), 5 states have internal predecessors, (3408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:18,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:18,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 680 of 732 [2022-12-06 16:54:18,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:18,787 INFO L130 PetriNetUnfolder]: 330/3205 cut-off events. [2022-12-06 16:54:18,787 INFO L131 PetriNetUnfolder]: For 981/990 co-relation queries the response was YES. [2022-12-06 16:54:18,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4578 conditions, 3205 events. 330/3205 cut-off events. For 981/990 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 18040 event pairs, 4 based on Foata normal form. 0/2943 useless extension candidates. Maximal degree in co-relation 1777. Up to 127 conditions per place. [2022-12-06 16:54:18,799 INFO L137 encePairwiseOnDemand]: 725/732 looper letters, 85 selfloop transitions, 6 changer transitions 1/796 dead transitions. [2022-12-06 16:54:18,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 716 places, 796 transitions, 3088 flow [2022-12-06 16:54:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:54:18,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:54:18,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4111 transitions. [2022-12-06 16:54:18,805 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9360200364298725 [2022-12-06 16:54:18,807 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 40 predicate places. [2022-12-06 16:54:18,807 INFO L495 AbstractCegarLoop]: Abstraction has has 716 places, 796 transitions, 3088 flow [2022-12-06 16:54:18,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 681.6) internal successors, (3408), 5 states have internal predecessors, (3408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:18,809 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:18,809 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] [2022-12-06 16:54:18,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:54:18,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:18,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash 122575318, now seen corresponding path program 1 times [2022-12-06 16:54:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:18,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221598335] [2022-12-06 16:54:18,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:18,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:19,183 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 16:54:19,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:19,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221598335] [2022-12-06 16:54:19,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221598335] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:19,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297661456] [2022-12-06 16:54:19,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:19,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:19,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:19,187 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 16:54:19,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 16:54:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:19,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 16:54:19,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:19,636 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 16:54:19,668 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 16:54:19,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:19,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297661456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:19,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:19,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-06 16:54:19,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790711363] [2022-12-06 16:54:19,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:19,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:54:19,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:19,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:54:19,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:54:19,675 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 732 [2022-12-06 16:54:19,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 716 places, 796 transitions, 3088 flow. Second operand has 7 states, 7 states have (on average 652.2857142857143) internal successors, (4566), 7 states have internal predecessors, (4566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:19,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:19,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 732 [2022-12-06 16:54:19,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:21,360 INFO L130 PetriNetUnfolder]: 1788/9109 cut-off events. [2022-12-06 16:54:21,360 INFO L131 PetriNetUnfolder]: For 10567/11349 co-relation queries the response was YES. [2022-12-06 16:54:21,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16248 conditions, 9109 events. 1788/9109 cut-off events. For 10567/11349 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 80661 event pairs, 292 based on Foata normal form. 0/8363 useless extension candidates. Maximal degree in co-relation 4225. Up to 955 conditions per place. [2022-12-06 16:54:21,405 INFO L137 encePairwiseOnDemand]: 723/732 looper letters, 125 selfloop transitions, 24 changer transitions 148/935 dead transitions. [2022-12-06 16:54:21,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 728 places, 935 transitions, 5007 flow [2022-12-06 16:54:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:54:21,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:54:21,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 8537 transitions. [2022-12-06 16:54:21,416 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8971206389239176 [2022-12-06 16:54:21,418 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 52 predicate places. [2022-12-06 16:54:21,420 INFO L495 AbstractCegarLoop]: Abstraction has has 728 places, 935 transitions, 5007 flow [2022-12-06 16:54:21,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 652.2857142857143) internal successors, (4566), 7 states have internal predecessors, (4566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:21,422 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:21,422 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] [2022-12-06 16:54:21,443 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 16:54:21,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-06 16:54:21,630 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:21,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:21,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1140762343, now seen corresponding path program 1 times [2022-12-06 16:54:21,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:21,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944385652] [2022-12-06 16:54:21,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:21,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:22,000 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 16:54:22,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:22,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944385652] [2022-12-06 16:54:22,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944385652] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:22,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904814306] [2022-12-06 16:54:22,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:22,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:22,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:22,002 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 16:54:22,004 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 16:54:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:22,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:22,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:22,563 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:22,564 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 16:54:22,588 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:22,588 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 16:54:22,608 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:22,609 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 16:54:22,623 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:22,623 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 16:54:23,151 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 16:54:23,171 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 16:54:23,199 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 16:54:23,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:23,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904814306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:23,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:23,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:23,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686574986] [2022-12-06 16:54:23,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:23,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:23,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:23,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:23,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:23,206 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-06 16:54:23,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 728 places, 935 transitions, 5007 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:23,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:23,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-06 16:54:23,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:26,824 INFO L130 PetriNetUnfolder]: 4319/18669 cut-off events. [2022-12-06 16:54:26,825 INFO L131 PetriNetUnfolder]: For 18446/19768 co-relation queries the response was YES. [2022-12-06 16:54:26,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39638 conditions, 18669 events. 4319/18669 cut-off events. For 18446/19768 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 190902 event pairs, 351 based on Foata normal form. 414/17858 useless extension candidates. Maximal degree in co-relation 11384. Up to 2396 conditions per place. [2022-12-06 16:54:26,894 INFO L137 encePairwiseOnDemand]: 713/732 looper letters, 252 selfloop transitions, 21 changer transitions 293/1148 dead transitions. [2022-12-06 16:54:26,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 745 places, 1148 transitions, 7656 flow [2022-12-06 16:54:26,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 16:54:26,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 16:54:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 10796 transitions. [2022-12-06 16:54:26,908 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8193685488767456 [2022-12-06 16:54:26,908 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 69 predicate places. [2022-12-06 16:54:26,908 INFO L495 AbstractCegarLoop]: Abstraction has has 745 places, 1148 transitions, 7656 flow [2022-12-06 16:54:26,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:26,911 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:26,911 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] [2022-12-06 16:54:26,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 16:54:27,117 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,SelfDestructingSolverStorable6 [2022-12-06 16:54:27,117 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash 757954403, now seen corresponding path program 2 times [2022-12-06 16:54:27,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:27,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682664295] [2022-12-06 16:54:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:27,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:27,450 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 16:54:27,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682664295] [2022-12-06 16:54:27,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682664295] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995198307] [2022-12-06 16:54:27,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:54:27,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:27,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:27,455 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 16:54:27,457 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 16:54:27,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 16:54:27,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:54:27,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:27,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:27,940 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:27,941 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 16:54:27,959 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:27,959 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 16:54:27,979 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:27,979 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 16:54:27,990 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:27,991 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 16:54:28,529 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 16:54:28,545 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 16:54:28,573 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 16:54:28,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:28,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995198307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:28,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:28,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:28,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100136982] [2022-12-06 16:54:28,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:28,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:28,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:28,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:28,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:28,580 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-06 16:54:28,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 745 places, 1148 transitions, 7656 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:28,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:28,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-06 16:54:28,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:33,642 INFO L130 PetriNetUnfolder]: 5635/24502 cut-off events. [2022-12-06 16:54:33,642 INFO L131 PetriNetUnfolder]: For 30327/34171 co-relation queries the response was YES. [2022-12-06 16:54:33,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59476 conditions, 24502 events. 5635/24502 cut-off events. For 30327/34171 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 266876 event pairs, 409 based on Foata normal form. 792/23623 useless extension candidates. Maximal degree in co-relation 16881. Up to 3856 conditions per place. [2022-12-06 16:54:33,751 INFO L137 encePairwiseOnDemand]: 712/732 looper letters, 248 selfloop transitions, 40 changer transitions 496/1366 dead transitions. [2022-12-06 16:54:33,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 776 places, 1366 transitions, 11252 flow [2022-12-06 16:54:33,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-06 16:54:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-06 16:54:33,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 19122 transitions. [2022-12-06 16:54:33,767 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8163422131147541 [2022-12-06 16:54:33,768 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 100 predicate places. [2022-12-06 16:54:33,768 INFO L495 AbstractCegarLoop]: Abstraction has has 776 places, 1366 transitions, 11252 flow [2022-12-06 16:54:33,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:33,770 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:33,770 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] [2022-12-06 16:54:33,779 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 16:54:33,978 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 16:54:33,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:33,979 INFO L85 PathProgramCache]: Analyzing trace with hash 363253185, now seen corresponding path program 3 times [2022-12-06 16:54:33,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:33,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324392851] [2022-12-06 16:54:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:33,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:34,391 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 16:54:34,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:34,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324392851] [2022-12-06 16:54:34,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324392851] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:34,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318612140] [2022-12-06 16:54:34,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 16:54:34,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:34,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:34,392 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 16:54:34,394 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 16:54:34,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-06 16:54:34,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:54:34,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:34,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:34,902 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:34,903 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 16:54:34,923 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:34,923 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 16:54:34,942 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:34,942 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 16:54:34,953 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:34,953 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 16:54:35,467 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 16:54:35,485 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 16:54:35,516 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 16:54:35,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:35,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318612140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:35,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:35,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:35,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10664149] [2022-12-06 16:54:35,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:35,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:35,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:35,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:35,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:35,520 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-06 16:54:35,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 776 places, 1366 transitions, 11252 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:35,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:35,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-06 16:54:35,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:42,182 INFO L130 PetriNetUnfolder]: 7400/32374 cut-off events. [2022-12-06 16:54:42,182 INFO L131 PetriNetUnfolder]: For 52433/63061 co-relation queries the response was YES. [2022-12-06 16:54:42,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88814 conditions, 32374 events. 7400/32374 cut-off events. For 52433/63061 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 375963 event pairs, 384 based on Foata normal form. 1138/31331 useless extension candidates. Maximal degree in co-relation 25456. Up to 6080 conditions per place. [2022-12-06 16:54:42,302 INFO L137 encePairwiseOnDemand]: 712/732 looper letters, 319 selfloop transitions, 53 changer transitions 661/1615 dead transitions. [2022-12-06 16:54:42,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 802 places, 1615 transitions, 16184 flow [2022-12-06 16:54:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 16:54:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 16:54:42,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 16165 transitions. [2022-12-06 16:54:42,311 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8179012345679012 [2022-12-06 16:54:42,311 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 126 predicate places. [2022-12-06 16:54:42,311 INFO L495 AbstractCegarLoop]: Abstraction has has 802 places, 1615 transitions, 16184 flow [2022-12-06 16:54:42,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:42,313 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:42,313 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] [2022-12-06 16:54:42,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 16:54:42,535 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 16:54:42,536 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:42,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1398009811, now seen corresponding path program 4 times [2022-12-06 16:54:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:42,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611074930] [2022-12-06 16:54:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:42,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:42,901 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 16:54:42,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:42,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611074930] [2022-12-06 16:54:42,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611074930] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:42,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687141693] [2022-12-06 16:54:42,901 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 16:54:42,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:42,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:42,908 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 16:54:42,910 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 16:54:43,289 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 16:54:43,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:54:43,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:43,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:43,448 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:43,449 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 16:54:43,467 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:43,467 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 16:54:43,491 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:43,491 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 16:54:43,505 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:43,506 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 16:54:43,970 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 16:54:43,996 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 16:54:44,024 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 16:54:44,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:44,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687141693] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:44,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:44,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:44,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430968739] [2022-12-06 16:54:44,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:44,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:44,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:44,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:44,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:44,029 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-06 16:54:44,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 802 places, 1615 transitions, 16184 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:44,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:44,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-06 16:54:44,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:51,201 INFO L130 PetriNetUnfolder]: 7817/34146 cut-off events. [2022-12-06 16:54:51,201 INFO L131 PetriNetUnfolder]: For 73305/93993 co-relation queries the response was YES. [2022-12-06 16:54:51,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105497 conditions, 34146 events. 7817/34146 cut-off events. For 73305/93993 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 401056 event pairs, 391 based on Foata normal form. 1346/33167 useless extension candidates. Maximal degree in co-relation 29945. Up to 6719 conditions per place. [2022-12-06 16:54:51,338 INFO L137 encePairwiseOnDemand]: 712/732 looper letters, 232 selfloop transitions, 25 changer transitions 844/1683 dead transitions. [2022-12-06 16:54:51,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 829 places, 1683 transitions, 19399 flow [2022-12-06 16:54:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 16:54:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 16:54:51,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 16761 transitions. [2022-12-06 16:54:51,349 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8177693208430913 [2022-12-06 16:54:51,349 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 153 predicate places. [2022-12-06 16:54:51,349 INFO L495 AbstractCegarLoop]: Abstraction has has 829 places, 1683 transitions, 19399 flow [2022-12-06 16:54:51,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:51,351 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:51,352 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] [2022-12-06 16:54:51,360 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 16:54:51,559 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 16:54:51,559 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:54:51,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1387784035, now seen corresponding path program 5 times [2022-12-06 16:54:51,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:51,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864176706] [2022-12-06 16:54:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:51,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:51,956 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 16:54:51,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:51,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864176706] [2022-12-06 16:54:51,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864176706] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:51,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144131941] [2022-12-06 16:54:51,957 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-06 16:54:51,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:51,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:51,958 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 16:54:51,988 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 16:54:52,349 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 16:54:52,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:54:52,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:52,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:52,521 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:52,522 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 16:54:52,543 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:52,544 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 16:54:52,563 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:52,563 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 16:54:52,576 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:52,577 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 16:54:53,075 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 16:54:53,094 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 16:54:53,122 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 16:54:53,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:53,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144131941] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:53,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:53,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:53,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608155013] [2022-12-06 16:54:53,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:53,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:53,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:53,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:53,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:53,128 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-06 16:54:53,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 829 places, 1683 transitions, 19399 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:53,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:53,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-06 16:54:53,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:02,039 INFO L130 PetriNetUnfolder]: 8844/38500 cut-off events. [2022-12-06 16:55:02,039 INFO L131 PetriNetUnfolder]: For 106161/144895 co-relation queries the response was YES. [2022-12-06 16:55:02,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132658 conditions, 38500 events. 8844/38500 cut-off events. For 106161/144895 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 463700 event pairs, 405 based on Foata normal form. 1506/37354 useless extension candidates. Maximal degree in co-relation 37414. Up to 8136 conditions per place. [2022-12-06 16:55:02,198 INFO L137 encePairwiseOnDemand]: 712/732 looper letters, 274 selfloop transitions, 52 changer transitions 910/1818 dead transitions. [2022-12-06 16:55:02,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 861 places, 1818 transitions, 24049 flow [2022-12-06 16:55:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-06 16:55:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-06 16:55:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 19728 transitions. [2022-12-06 16:55:02,207 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8166915052160953 [2022-12-06 16:55:02,207 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 185 predicate places. [2022-12-06 16:55:02,208 INFO L495 AbstractCegarLoop]: Abstraction has has 861 places, 1818 transitions, 24049 flow [2022-12-06 16:55:02,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 16:55:02,210 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:02,210 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] [2022-12-06 16:55:02,217 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 16:55:02,416 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 16:55:02,417 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-06 16:55:02,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:02,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2104530787, now seen corresponding path program 6 times [2022-12-06 16:55:02,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:02,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279451321] [2022-12-06 16:55:02,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:02,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:02,775 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 16:55:02,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:02,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279451321] [2022-12-06 16:55:02,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279451321] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:02,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104369443] [2022-12-06 16:55:02,775 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-06 16:55:02,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:02,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:02,777 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 16:55:02,779 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 16:55:03,122 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-06 16:55:03,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:55:03,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:55:03,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:03,253 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:03,254 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 16:55:03,268 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:03,269 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 16:55:03,286 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:03,287 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 16:55:03,298 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:55:03,301 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 16:55:03,834 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 16:55:03,850 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 16:55:03,875 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 16:55:03,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:03,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104369443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:03,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:03,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:55:03,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133686832] [2022-12-06 16:55:03,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:03,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:55:03,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:03,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:55:03,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:55:03,880 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-06 16:55:03,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 1818 transitions, 24049 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 16:55:03,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:03,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-06 16:55:03,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:13,542 INFO L130 PetriNetUnfolder]: 10491/45067 cut-off events. [2022-12-06 16:55:13,543 INFO L131 PetriNetUnfolder]: For 159555/213950 co-relation queries the response was YES. [2022-12-06 16:55:13,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172911 conditions, 45067 events. 10491/45067 cut-off events. For 159555/213950 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 561385 event pairs, 278 based on Foata normal form. 2028/43970 useless extension candidates. Maximal degree in co-relation 49970. Up to 10693 conditions per place. [2022-12-06 16:55:13,714 INFO L137 encePairwiseOnDemand]: 712/732 looper letters, 0 selfloop transitions, 0 changer transitions 2114/2114 dead transitions. [2022-12-06 16:55:13,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 887 places, 2114 transitions, 32642 flow [2022-12-06 16:55:13,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 16:55:13,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 16:55:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 17344 transitions. [2022-12-06 16:55:13,722 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8170341058978707 [2022-12-06 16:55:13,722 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 211 predicate places. [2022-12-06 16:55:13,722 INFO L495 AbstractCegarLoop]: Abstraction has has 887 places, 2114 transitions, 32642 flow [2022-12-06 16:55:13,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 16:55:13,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-06 16:55:13,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-06 16:55:13,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-06 16:55:13,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-06 16:55:13,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-06 16:55:13,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-06 16:55:13,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-06 16:55:13,735 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 16:55:13,933 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 16:55:13,936 INFO L458 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:13,940 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:55:13,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:55:13,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:55:13 BasicIcfg [2022-12-06 16:55:13,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:55:13,944 INFO L158 Benchmark]: Toolchain (without parser) took 67126.09ms. Allocated memory was 197.1MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 149.6MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2022-12-06 16:55:13,945 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 197.1MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:55:13,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5003.45ms. Allocated memory was 197.1MB in the beginning and 270.5MB in the end (delta: 73.4MB). Free memory was 149.1MB in the beginning and 142.1MB in the end (delta: 7.0MB). Peak memory consumption was 135.7MB. Max. memory is 8.0GB. [2022-12-06 16:55:13,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.76ms. Allocated memory is still 270.5MB. Free memory was 142.1MB in the beginning and 131.0MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 16:55:13,945 INFO L158 Benchmark]: Boogie Preprocessor took 51.71ms. Allocated memory is still 270.5MB. Free memory was 131.0MB in the beginning and 125.3MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-06 16:55:13,945 INFO L158 Benchmark]: RCFGBuilder took 963.87ms. Allocated memory is still 270.5MB. Free memory was 125.3MB in the beginning and 156.8MB in the end (delta: -31.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 16:55:13,945 INFO L158 Benchmark]: TraceAbstraction took 60987.21ms. Allocated memory was 270.5MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 156.3MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2022-12-06 16:55:13,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 197.1MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5003.45ms. Allocated memory was 197.1MB in the beginning and 270.5MB in the end (delta: 73.4MB). Free memory was 149.1MB in the beginning and 142.1MB in the end (delta: 7.0MB). Peak memory consumption was 135.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 113.76ms. Allocated memory is still 270.5MB. Free memory was 142.1MB in the beginning and 131.0MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.71ms. Allocated memory is still 270.5MB. Free memory was 131.0MB in the beginning and 125.3MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 963.87ms. Allocated memory is still 270.5MB. Free memory was 125.3MB in the beginning and 156.8MB in the end (delta: -31.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 60987.21ms. Allocated memory was 270.5MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 156.3MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 2.3GB. 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, 793 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 60.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 46.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2849 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2849 mSDsluCounter, 4920 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4204 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8625 IncrementalHoareTripleChecker+Invalid, 8805 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 716 mSDtfsCounter, 8625 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2179 GetRequests, 1848 SyntacticMatches, 0 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2031 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32642occurred in iteration=12, InterpolantAutomatonStates: 235, 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: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 5030 NumberOfCodeBlocks, 5009 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 5011 ConstructedInterpolants, 0 QuantifiedInterpolants, 18716 SizeOfPredicates, 116 NumberOfNonLiveVariables, 7130 ConjunctsInSsa, 246 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 7/14 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 16:55:13,971 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...