/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_get_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:09:02,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:09:02,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:09:02,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:09:02,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:09:02,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:09:02,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:09:02,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:09:02,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:09:02,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:09:02,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:09:02,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:09:02,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:09:02,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:09:02,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:09:02,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:09:02,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:09:02,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:09:02,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:09:02,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:09:02,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:09:02,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:09:02,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:09:02,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:09:02,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:09:02,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:09:02,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:09:02,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:09:02,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:09:02,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:09:02,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:09:02,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:09:02,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:09:02,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:09:02,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:09:02,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:09:02,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:09:02,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:09:02,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:09:02,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:09:02,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:09:02,928 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 [2022-12-11 21:09:02,952 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:09:02,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:09:02,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:09:02,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:09:02,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:09:02,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:09:02,955 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:09:02,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:09:02,955 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:09:02,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:09:02,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:09:02,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:09:02,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:09:02,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:09:02,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:09:02,956 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:09:02,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:09:02,957 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:09:02,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:09:02,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:09:02,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:09:02,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:09:02,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:09:02,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:09:02,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:09:02,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:09:02,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:09:02,958 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:09:02,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:09:02,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:09:02,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:09:02,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:09:03,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:09:03,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:09:03,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:09:03,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:09:03,258 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:09:03,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2022-12-11 21:09:04,221 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:09:04,612 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:09:04,612 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2022-12-11 21:09:04,646 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f09b2caf2/02987a83e4844712b3e9a3d705b4e9c9/FLAG1f8cd3343 [2022-12-11 21:09:04,656 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f09b2caf2/02987a83e4844712b3e9a3d705b4e9c9 [2022-12-11 21:09:04,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:09:04,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:09:04,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:09:04,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:09:04,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:09:04,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:09:04" (1/1) ... [2022-12-11 21:09:04,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78adb0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:04, skipping insertion in model container [2022-12-11 21:09:04,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:09:04" (1/1) ... [2022-12-11 21:09:04,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:09:04,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:09:05,036 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_get_pc8736x_gpio_set.i[5469,5482] [2022-12-11 21:09:05,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,333 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,374 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-11 21:09:05,382 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 21:09:05,388 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 21:09:05,398 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 21:09:05,522 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 21:09:05,528 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 21:09:05,713 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-11 21:09:05,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:05,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:05,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:06,025 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-11 21:09:06,029 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-11 21:09:06,033 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-11 21:09:06,120 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-11 21:09:06,120 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 21:09:06,123 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-11 21:09:06,124 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 21:09:06,259 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-11 21:09:06,658 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 21:09:06,668 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 21:09:06,732 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-11 21:09:06,735 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-11 21:09:06,914 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-11 21:09:07,034 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-11 21:09:07,037 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-11 21:09:07,168 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-11 21:09:07,294 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-11 21:09:07,294 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-11 21:09:07,295 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-11 21:09:07,988 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-11 21:09:07,989 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 21:09:07,992 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 21:09:07,995 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 21:09:07,998 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 21:09:08,346 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 21:09:08,346 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 21:09:08,366 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-11 21:09:08,367 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-11 21:09:08,368 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-11 21:09:08,368 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 21:09:08,369 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-11 21:09:08,369 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-11 21:09:08,371 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 21:09:08,371 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-11 21:09:08,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:09:08,397 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:09:08,407 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_get_pc8736x_gpio_set.i[5469,5482] [2022-12-11 21:09:08,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,415 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-11 21:09:08,416 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 21:09:08,416 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 21:09:08,416 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 21:09:08,419 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 21:09:08,420 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 21:09:08,421 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-11 21:09:08,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:09:08,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:09:08,435 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-11 21:09:08,435 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-11 21:09:08,435 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-11 21:09:08,438 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-11 21:09:08,438 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 21:09:08,438 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-11 21:09:08,439 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 21:09:08,446 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-11 21:09:08,458 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 21:09:08,459 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 21:09:08,460 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-11 21:09:08,461 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-11 21:09:08,466 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-11 21:09:08,470 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-11 21:09:08,471 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-11 21:09:08,474 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-11 21:09:08,478 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-11 21:09:08,478 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-11 21:09:08,478 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-11 21:09:08,536 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-11 21:09:08,536 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 21:09:08,540 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 21:09:08,546 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 21:09:08,549 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 21:09:08,580 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 21:09:08,580 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 21:09:08,585 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-11 21:09:08,585 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-11 21:09:08,586 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-11 21:09:08,587 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 21:09:08,587 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-11 21:09:08,587 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-11 21:09:08,596 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 21:09:08,596 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-11 21:09:08,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:09:08,977 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:09:08,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08 WrapperNode [2022-12-11 21:09:08,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:09:08,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:09:08,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:09:08,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:09:08,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,104 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 721 [2022-12-11 21:09:09,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:09:09,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:09:09,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:09:09,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:09:09,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,137 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:09:09,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:09:09,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:09:09,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:09:09,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (1/1) ... [2022-12-11 21:09:09,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:09:09,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:09:09,176 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) [2022-12-11 21:09:09,182 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 [2022-12-11 21:09:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 21:09:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-11 21:09:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:09:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-11 21:09:09,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:09:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-11 21:09:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-11 21:09:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-11 21:09:09,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:09:09,212 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:09:09,676 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:09:09,678 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:09:10,206 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:09:10,214 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:09:10,214 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-11 21:09:10,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:09:10 BoogieIcfgContainer [2022-12-11 21:09:10,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:09:10,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:09:10,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:09:10,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:09:10,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:09:04" (1/3) ... [2022-12-11 21:09:10,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6523048a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:09:10, skipping insertion in model container [2022-12-11 21:09:10,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:09:08" (2/3) ... [2022-12-11 21:09:10,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6523048a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:09:10, skipping insertion in model container [2022-12-11 21:09:10,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:09:10" (3/3) ... [2022-12-11 21:09:10,221 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2022-12-11 21:09:10,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:09:10,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-11 21:09:10,233 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:09:10,295 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 21:09:10,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 736 places, 792 transitions, 1600 flow [2022-12-11 21:09:10,463 INFO L130 PetriNetUnfolder]: 63/790 cut-off events. [2022-12-11 21:09:10,464 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 21:09:10,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 790 events. 63/790 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1229 event pairs, 0 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 719. Up to 9 conditions per place. [2022-12-11 21:09:10,471 INFO L82 GeneralOperation]: Start removeDead. Operand has 736 places, 792 transitions, 1600 flow [2022-12-11 21:09:10,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 726 places, 782 transitions, 1573 flow [2022-12-11 21:09:10,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:09:10,488 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;@58dd0fc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:09:10,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-11 21:09:10,572 INFO L130 PetriNetUnfolder]: 21/400 cut-off events. [2022-12-11 21:09:10,572 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:09:10,573 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:09:10,573 INFO L214 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] [2022-12-11 21:09:10,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 21:09:10,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:09:10,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2059439434, now seen corresponding path program 1 times [2022-12-11 21:09:10,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:09:10,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432535470] [2022-12-11 21:09:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:10,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:09:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:11,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:09:11,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:09:11,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432535470] [2022-12-11 21:09:11,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432535470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:09:11,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:09:11,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:09:11,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789334380] [2022-12-11 21:09:11,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:09:11,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:09:11,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:09:11,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:09:11,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:09:11,682 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 716 out of 792 [2022-12-11 21:09:11,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 726 places, 782 transitions, 1573 flow. Second operand has 6 states, 6 states have (on average 720.6666666666666) internal successors, (4324), 6 states have internal predecessors, (4324), 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) [2022-12-11 21:09:11,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:09:11,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 716 of 792 [2022-12-11 21:09:11,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:09:12,022 INFO L130 PetriNetUnfolder]: 67/1191 cut-off events. [2022-12-11 21:09:12,022 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-11 21:09:12,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 1191 events. 67/1191 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3292 event pairs, 4 based on Foata normal form. 32/1152 useless extension candidates. Maximal degree in co-relation 1003. Up to 37 conditions per place. [2022-12-11 21:09:12,028 INFO L137 encePairwiseOnDemand]: 753/792 looper letters, 47 selfloop transitions, 9 changer transitions 1/762 dead transitions. [2022-12-11 21:09:12,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 729 places, 762 transitions, 1654 flow [2022-12-11 21:09:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 21:09:12,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 21:09:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5833 transitions. [2022-12-11 21:09:12,047 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9206123737373737 [2022-12-11 21:09:12,050 INFO L295 CegarLoopForPetriNet]: 726 programPoint places, 3 predicate places. [2022-12-11 21:09:12,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 729 places, 762 transitions, 1654 flow [2022-12-11 21:09:12,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 728 places, 761 transitions, 1652 flow [2022-12-11 21:09:12,056 INFO L495 AbstractCegarLoop]: Abstraction has has 728 places, 761 transitions, 1652 flow [2022-12-11 21:09:12,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 720.6666666666666) internal successors, (4324), 6 states have internal predecessors, (4324), 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) [2022-12-11 21:09:12,058 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:09:12,058 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:09:12,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:09:12,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 21:09:12,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:09:12,059 INFO L85 PathProgramCache]: Analyzing trace with hash 247716807, now seen corresponding path program 1 times [2022-12-11 21:09:12,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:09:12,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365396673] [2022-12-11 21:09:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:12,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:09:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:09:12,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:09:12,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365396673] [2022-12-11 21:09:12,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365396673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:09:12,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:09:12,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 21:09:12,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535377617] [2022-12-11 21:09:12,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:09:12,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 21:09:12,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:09:12,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 21:09:12,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-11 21:09:12,374 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 724 out of 792 [2022-12-11 21:09:12,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 728 places, 761 transitions, 1652 flow. Second operand has 9 states, 9 states have (on average 726.0) internal successors, (6534), 9 states have internal predecessors, (6534), 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) [2022-12-11 21:09:12,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:09:12,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 724 of 792 [2022-12-11 21:09:12,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:09:12,690 INFO L130 PetriNetUnfolder]: 66/1186 cut-off events. [2022-12-11 21:09:12,691 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-11 21:09:12,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 1186 events. 66/1186 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3324 event pairs, 4 based on Foata normal form. 0/1117 useless extension candidates. Maximal degree in co-relation 1037. Up to 36 conditions per place. [2022-12-11 21:09:12,696 INFO L137 encePairwiseOnDemand]: 775/792 looper letters, 26 selfloop transitions, 16 changer transitions 0/757 dead transitions. [2022-12-11 21:09:12,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 740 places, 757 transitions, 1726 flow [2022-12-11 21:09:12,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 21:09:12,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 21:09:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 11619 transitions. [2022-12-11 21:09:12,711 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9169034090909091 [2022-12-11 21:09:12,712 INFO L295 CegarLoopForPetriNet]: 726 programPoint places, 14 predicate places. [2022-12-11 21:09:12,712 INFO L82 GeneralOperation]: Start removeDead. Operand has 740 places, 757 transitions, 1726 flow [2022-12-11 21:09:12,716 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 740 places, 757 transitions, 1726 flow [2022-12-11 21:09:12,716 INFO L495 AbstractCegarLoop]: Abstraction has has 740 places, 757 transitions, 1726 flow [2022-12-11 21:09:12,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 726.0) internal successors, (6534), 9 states have internal predecessors, (6534), 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) [2022-12-11 21:09:12,719 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:09:12,719 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:09:12,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:09:12,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 21:09:12,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:09:12,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1569101742, now seen corresponding path program 1 times [2022-12-11 21:09:12,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:09:12,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775345448] [2022-12-11 21:09:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:12,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:09:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:13,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:09:13,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:09:13,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775345448] [2022-12-11 21:09:13,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775345448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:09:13,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:09:13,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 21:09:13,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857307143] [2022-12-11 21:09:13,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:09:13,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 21:09:13,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:09:13,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 21:09:13,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-11 21:09:13,149 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 792 [2022-12-11 21:09:13,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 740 places, 757 transitions, 1726 flow. Second operand has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 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) [2022-12-11 21:09:13,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:09:13,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 792 [2022-12-11 21:09:13,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:09:13,500 INFO L130 PetriNetUnfolder]: 87/1464 cut-off events. [2022-12-11 21:09:13,500 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2022-12-11 21:09:13,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 1464 events. 87/1464 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4155 event pairs, 6 based on Foata normal form. 0/1372 useless extension candidates. Maximal degree in co-relation 1236. Up to 37 conditions per place. [2022-12-11 21:09:13,507 INFO L137 encePairwiseOnDemand]: 785/792 looper letters, 28 selfloop transitions, 6 changer transitions 0/764 dead transitions. [2022-12-11 21:09:13,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 745 places, 764 transitions, 1833 flow [2022-12-11 21:09:13,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 21:09:13,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 21:09:13,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4447 transitions. [2022-12-11 21:09:13,513 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9358164983164983 [2022-12-11 21:09:13,514 INFO L295 CegarLoopForPetriNet]: 726 programPoint places, 19 predicate places. [2022-12-11 21:09:13,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 745 places, 764 transitions, 1833 flow [2022-12-11 21:09:13,520 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 745 places, 764 transitions, 1833 flow [2022-12-11 21:09:13,520 INFO L495 AbstractCegarLoop]: Abstraction has has 745 places, 764 transitions, 1833 flow [2022-12-11 21:09:13,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 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) [2022-12-11 21:09:13,522 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:09:13,522 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:09:13,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:09:13,523 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 21:09:13,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:09:13,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1943554435, now seen corresponding path program 1 times [2022-12-11 21:09:13,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:09:13,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134225532] [2022-12-11 21:09:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:13,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:09:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:09:13,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:09:13,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134225532] [2022-12-11 21:09:13,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134225532] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 21:09:13,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718522711] [2022-12-11 21:09:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:13,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:09:13,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:09:13,993 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) [2022-12-11 21:09:13,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-11 21:09:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:14,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-11 21:09:14,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 21:09:14,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-11 21:09:14,629 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 [2022-12-11 21:09:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 21:09:14,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 21:09:14,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718522711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:09:14,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 21:09:14,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-11 21:09:14,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672360768] [2022-12-11 21:09:14,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:09:14,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:09:14,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:09:14,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:09:14,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-11 21:09:14,680 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 792 [2022-12-11 21:09:14,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 745 places, 764 transitions, 1833 flow. Second operand has 7 states, 7 states have (on average 704.1428571428571) internal successors, (4929), 7 states have internal predecessors, (4929), 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) [2022-12-11 21:09:14,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:09:14,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 792 [2022-12-11 21:09:14,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:09:15,948 INFO L130 PetriNetUnfolder]: 1019/6643 cut-off events. [2022-12-11 21:09:15,948 INFO L131 PetriNetUnfolder]: For 1300/1300 co-relation queries the response was YES. [2022-12-11 21:09:15,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8758 conditions, 6643 events. 1019/6643 cut-off events. For 1300/1300 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 47589 event pairs, 375 based on Foata normal form. 0/6035 useless extension candidates. Maximal degree in co-relation 2803. Up to 549 conditions per place. [2022-12-11 21:09:15,972 INFO L137 encePairwiseOnDemand]: 784/792 looper letters, 70 selfloop transitions, 5 changer transitions 81/845 dead transitions. [2022-12-11 21:09:15,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 756 places, 845 transitions, 2655 flow [2022-12-11 21:09:15,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 21:09:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 21:09:15,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8490 transitions. [2022-12-11 21:09:15,985 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8933080808080808 [2022-12-11 21:09:15,985 INFO L295 CegarLoopForPetriNet]: 726 programPoint places, 30 predicate places. [2022-12-11 21:09:15,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 756 places, 845 transitions, 2655 flow [2022-12-11 21:09:15,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 748 places, 764 transitions, 1969 flow [2022-12-11 21:09:15,996 INFO L495 AbstractCegarLoop]: Abstraction has has 748 places, 764 transitions, 1969 flow [2022-12-11 21:09:15,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 704.1428571428571) internal successors, (4929), 7 states have internal predecessors, (4929), 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) [2022-12-11 21:09:15,999 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:09:15,999 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:09:16,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-11 21:09:16,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:09:16,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 21:09:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:09:16,211 INFO L85 PathProgramCache]: Analyzing trace with hash -669095339, now seen corresponding path program 1 times [2022-12-11 21:09:16,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:09:16,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546862061] [2022-12-11 21:09:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:16,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:09:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 21:09:16,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:09:16,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546862061] [2022-12-11 21:09:16,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546862061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:09:16,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:09:16,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-11 21:09:16,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149464853] [2022-12-11 21:09:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:09:16,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-11 21:09:16,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:09:16,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-11 21:09:16,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-11 21:09:16,391 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 749 out of 792 [2022-12-11 21:09:16,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 748 places, 764 transitions, 1969 flow. Second operand has 3 states, 3 states have (on average 751.0) internal successors, (2253), 3 states have internal predecessors, (2253), 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) [2022-12-11 21:09:16,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:09:16,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 749 of 792 [2022-12-11 21:09:16,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:09:17,058 INFO L130 PetriNetUnfolder]: 585/4639 cut-off events. [2022-12-11 21:09:17,058 INFO L131 PetriNetUnfolder]: For 1020/1032 co-relation queries the response was YES. [2022-12-11 21:09:17,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6058 conditions, 4639 events. 585/4639 cut-off events. For 1020/1032 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 30058 event pairs, 286 based on Foata normal form. 0/4221 useless extension candidates. Maximal degree in co-relation 2426. Up to 510 conditions per place. [2022-12-11 21:09:17,074 INFO L137 encePairwiseOnDemand]: 790/792 looper letters, 18 selfloop transitions, 1 changer transitions 0/769 dead transitions. [2022-12-11 21:09:17,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 750 places, 769 transitions, 2063 flow [2022-12-11 21:09:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-11 21:09:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-11 21:09:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2261 transitions. [2022-12-11 21:09:17,078 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9515993265993266 [2022-12-11 21:09:17,079 INFO L295 CegarLoopForPetriNet]: 726 programPoint places, 24 predicate places. [2022-12-11 21:09:17,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 750 places, 769 transitions, 2063 flow [2022-12-11 21:09:17,089 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 750 places, 769 transitions, 2063 flow [2022-12-11 21:09:17,089 INFO L495 AbstractCegarLoop]: Abstraction has has 750 places, 769 transitions, 2063 flow [2022-12-11 21:09:17,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 751.0) internal successors, (2253), 3 states have internal predecessors, (2253), 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) [2022-12-11 21:09:17,090 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:09:17,091 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:09:17,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:09:17,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 21:09:17,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:09:17,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1561745803, now seen corresponding path program 1 times [2022-12-11 21:09:17,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:09:17,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070371651] [2022-12-11 21:09:17,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:17,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:09:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:09:17,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:09:17,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070371651] [2022-12-11 21:09:17,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070371651] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 21:09:17,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031639437] [2022-12-11 21:09:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:17,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:09:17,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:09:17,586 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) [2022-12-11 21:09:17,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-11 21:09:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:18,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-11 21:09:18,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 21:09:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:09:18,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 21:09:18,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:09:18,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031639437] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 21:09:18,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 21:09:18,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2022-12-11 21:09:18,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245612259] [2022-12-11 21:09:18,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 21:09:18,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-11 21:09:18,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:09:18,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-11 21:09:18,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-11 21:09:18,277 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 792 [2022-12-11 21:09:18,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 750 places, 769 transitions, 2063 flow. Second operand has 13 states, 13 states have (on average 738.0769230769231) internal successors, (9595), 13 states have internal predecessors, (9595), 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) [2022-12-11 21:09:18,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:09:18,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 792 [2022-12-11 21:09:18,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:09:19,475 INFO L130 PetriNetUnfolder]: 585/4660 cut-off events. [2022-12-11 21:09:19,476 INFO L131 PetriNetUnfolder]: For 1426/1438 co-relation queries the response was YES. [2022-12-11 21:09:19,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6198 conditions, 4660 events. 585/4660 cut-off events. For 1426/1438 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 30128 event pairs, 286 based on Foata normal form. 0/4242 useless extension candidates. Maximal degree in co-relation 2507. Up to 510 conditions per place. [2022-12-11 21:09:19,497 INFO L137 encePairwiseOnDemand]: 779/792 looper letters, 32 selfloop transitions, 18 changer transitions 0/783 dead transitions. [2022-12-11 21:09:19,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 783 transitions, 2231 flow [2022-12-11 21:09:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 21:09:19,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 21:09:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 11088 transitions. [2022-12-11 21:09:19,514 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2022-12-11 21:09:19,514 INFO L295 CegarLoopForPetriNet]: 726 programPoint places, 38 predicate places. [2022-12-11 21:09:19,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 764 places, 783 transitions, 2231 flow [2022-12-11 21:09:19,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 764 places, 783 transitions, 2231 flow [2022-12-11 21:09:19,526 INFO L495 AbstractCegarLoop]: Abstraction has has 764 places, 783 transitions, 2231 flow [2022-12-11 21:09:19,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 738.0769230769231) internal successors, (9595), 13 states have internal predecessors, (9595), 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) [2022-12-11 21:09:19,530 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:09:19,531 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:09:19,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-11 21:09:19,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-11 21:09:19,745 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 21:09:19,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:09:19,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1860490758, now seen corresponding path program 2 times [2022-12-11 21:09:19,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:09:19,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098969485] [2022-12-11 21:09:19,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:09:19,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:09:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:09:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:09:20,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:09:20,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098969485] [2022-12-11 21:09:20,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098969485] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 21:09:20,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391050965] [2022-12-11 21:09:20,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 21:09:20,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:09:20,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:09:20,280 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) [2022-12-11 21:09:20,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-11 21:09:20,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-11 21:09:20,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 21:09:20,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 91 conjunts are in the unsatisfiable core [2022-12-11 21:09:20,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 21:09:21,134 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-11 21:09:21,180 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,226 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,281 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 21:09:21,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 21:09:21,330 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,364 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,397 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,438 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 21:09:21,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 21:09:21,473 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,502 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,536 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,565 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,612 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 21:09:21,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 21:09:21,654 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,698 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,735 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 21:09:21,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 21:09:21,785 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 21:09:21,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 21:09:22,034 INFO L321 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2022-12-11 21:09:22,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 43 treesize of output 85 [2022-12-11 21:09:22,297 INFO L321 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2022-12-11 21:09:22,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 82 [2022-12-11 21:09:22,600 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 21:09:22,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 21:09:22,659 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 21:09:22,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 21:09:22,991 INFO L321 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2022-12-11 21:09:22,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 37 treesize of output 79 [2022-12-11 21:09:23,510 INFO L321 Elim1Store]: treesize reduction 54, result has 49.1 percent of original size [2022-12-11 21:09:23,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 49 treesize of output 91 [2022-12-11 21:09:24,578 INFO L321 Elim1Store]: treesize reduction 46, result has 43.9 percent of original size [2022-12-11 21:09:24,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 72 [2022-12-11 21:09:24,825 INFO L321 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2022-12-11 21:09:24,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 76 [2022-12-11 21:09:25,477 INFO L321 Elim1Store]: treesize reduction 4, result has 91.8 percent of original size [2022-12-11 21:09:25,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 67 [2022-12-11 21:09:25,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-11 21:09:25,767 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 [2022-12-11 21:09:25,794 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 [2022-12-11 21:09:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-11 21:09:25,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 21:09:25,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391050965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:09:25,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 21:09:25,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [10] total 23 [2022-12-11 21:09:25,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573186472] [2022-12-11 21:09:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:09:25,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-11 21:09:25,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:09:25,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-11 21:09:25,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2022-12-11 21:09:25,847 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 792 [2022-12-11 21:09:25,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 764 places, 783 transitions, 2231 flow. Second operand has 15 states, 15 states have (on average 650.8666666666667) internal successors, (9763), 15 states have internal predecessors, (9763), 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) [2022-12-11 21:09:25,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:09:25,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 792 [2022-12-11 21:09:25,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:09:27,305 INFO L130 PetriNetUnfolder]: 469/3670 cut-off events. [2022-12-11 21:09:27,305 INFO L131 PetriNetUnfolder]: For 1670/2896 co-relation queries the response was YES. [2022-12-11 21:09:27,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5891 conditions, 3670 events. 469/3670 cut-off events. For 1670/2896 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 20879 event pairs, 90 based on Foata normal form. 6/3384 useless extension candidates. Maximal degree in co-relation 2853. Up to 450 conditions per place. [2022-12-11 21:09:27,319 INFO L137 encePairwiseOnDemand]: 775/792 looper letters, 0 selfloop transitions, 0 changer transitions 821/821 dead transitions. [2022-12-11 21:09:27,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 777 places, 821 transitions, 3113 flow [2022-12-11 21:09:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 21:09:27,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 21:09:27,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 10445 transitions. [2022-12-11 21:09:27,337 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8242582070707071 [2022-12-11 21:09:27,337 INFO L295 CegarLoopForPetriNet]: 726 programPoint places, 51 predicate places. [2022-12-11 21:09:27,337 INFO L82 GeneralOperation]: Start removeDead. Operand has 777 places, 821 transitions, 3113 flow [2022-12-11 21:09:27,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 21:09:27,341 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 21:09:27,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 650.8666666666667) internal successors, (9763), 15 states have internal predecessors, (9763), 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) [2022-12-11 21:09:27,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-11 21:09:27,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-11 21:09:27,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-11 21:09:27,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-11 21:09:27,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-11 21:09:27,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-11 21:09:27,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:09:27,558 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-11 21:09:27,570 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:09:27,570 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:09:27,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:09:27 BasicIcfg [2022-12-11 21:09:27,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:09:27,576 INFO L158 Benchmark]: Toolchain (without parser) took 22916.67ms. Allocated memory was 199.2MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 163.3MB in the beginning and 937.0MB in the end (delta: -773.6MB). Peak memory consumption was 405.2MB. Max. memory is 8.0GB. [2022-12-11 21:09:27,576 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 175.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:09:27,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4317.95ms. Allocated memory was 199.2MB in the beginning and 377.5MB in the end (delta: 178.3MB). Free memory was 163.3MB in the beginning and 295.5MB in the end (delta: -132.2MB). Peak memory consumption was 131.0MB. Max. memory is 8.0GB. [2022-12-11 21:09:27,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.25ms. Allocated memory is still 377.5MB. Free memory was 295.5MB in the beginning and 284.1MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-11 21:09:27,578 INFO L158 Benchmark]: Boogie Preprocessor took 39.85ms. Allocated memory is still 377.5MB. Free memory was 284.1MB in the beginning and 278.3MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-11 21:09:27,578 INFO L158 Benchmark]: RCFGBuilder took 1070.79ms. Allocated memory is still 377.5MB. Free memory was 278.3MB in the beginning and 214.3MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-12-11 21:09:27,578 INFO L158 Benchmark]: TraceAbstraction took 17357.76ms. Allocated memory was 377.5MB in the beginning and 1.4GB in the end (delta: 999.3MB). Free memory was 212.8MB in the beginning and 937.0MB in the end (delta: -724.2MB). Peak memory consumption was 274.8MB. Max. memory is 8.0GB. [2022-12-11 21:09:27,579 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 199.2MB. Free memory is still 175.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4317.95ms. Allocated memory was 199.2MB in the beginning and 377.5MB in the end (delta: 178.3MB). Free memory was 163.3MB in the beginning and 295.5MB in the end (delta: -132.2MB). Peak memory consumption was 131.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 126.25ms. Allocated memory is still 377.5MB. Free memory was 295.5MB in the beginning and 284.1MB in the end (delta: 11.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.85ms. Allocated memory is still 377.5MB. Free memory was 284.1MB in the beginning and 278.3MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1070.79ms. Allocated memory is still 377.5MB. Free memory was 278.3MB in the beginning and 214.3MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. * TraceAbstraction took 17357.76ms. Allocated memory was 377.5MB in the beginning and 1.4GB in the end (delta: 999.3MB). Free memory was 212.8MB in the beginning and 937.0MB in the end (delta: -724.2MB). Peak memory consumption was 274.8MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 893 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.2s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 541 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 541 mSDsluCounter, 925 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 740 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1111 IncrementalHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 185 mSDtfsCounter, 1111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1343 GetRequests, 1234 SyntacticMatches, 6 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2231occurred in iteration=6, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 3801 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 3009 NumberOfCodeBlocks, 2981 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3307 ConstructedInterpolants, 101 QuantifiedInterpolants, 10165 SizeOfPredicates, 45 NumberOfNonLiveVariables, 3150 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 48/98 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 21:09:27,606 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...