/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:45:45,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:45:45,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:45:45,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:45:45,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:45:45,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:45:45,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:45:45,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:45:45,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:45:45,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:45:45,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:45:45,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:45:45,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:45:45,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:45:45,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:45:45,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:45:45,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:45:45,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:45:45,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:45:45,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:45:45,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:45:45,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:45:45,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:45:45,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:45:45,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:45:45,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:45:45,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:45:45,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:45:45,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:45:45,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:45:45,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:45:45,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:45:45,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:45:45,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:45:45,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:45:45,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:45:45,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:45:45,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:45:45,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:45:45,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:45:45,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:45:45,949 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 [2022-12-05 18:45:45,975 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:45:45,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:45:45,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:45:45,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:45:45,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:45:45,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:45:45,979 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:45:45,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:45:45,979 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:45:45,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:45:45,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:45:45,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:45:45,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:45:45,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:45:45,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:45:45,981 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:45:45,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:45:45,981 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:45:45,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:45:45,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:45:45,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:45:45,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:45:45,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:45:45,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:45:45,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:45:45,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:45:45,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:45:45,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:45:45,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:45:45,983 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:45:45,983 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:45:45,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:45:46,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:45:46,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:45:46,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:45:46,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:45:46,309 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:45:46,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2022-12-05 18:45:47,467 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:45:47,978 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:45:47,979 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2022-12-05 18:45:48,022 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc755e85c/2007cb9fbe7542de879e11bd745eaf88/FLAG3de2f57f0 [2022-12-05 18:45:48,035 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc755e85c/2007cb9fbe7542de879e11bd745eaf88 [2022-12-05 18:45:48,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:45:48,039 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:45:48,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:45:48,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:45:48,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:45:48,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:45:48" (1/1) ... [2022-12-05 18:45:48,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de12214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:48, skipping insertion in model container [2022-12-05 18:45:48,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:45:48" (1/1) ... [2022-12-05 18:45:48,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:45:48,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:45:48,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2022-12-05 18:45:48,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:48,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:48,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:48,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:48,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:48,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:48,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:48,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:48,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:48,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:48,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:48,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:48,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:48,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:48,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:48,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:48,883 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:45:48,890 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:48,898 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:48,911 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:49,099 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:45:49,106 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:45:49,321 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:45:49,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:49,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:49,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:49,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:49,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:49,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:49,746 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:45:49,750 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:45:49,757 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:45:49,923 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:45:49,925 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:45:49,931 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:45:49,931 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:45:50,254 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:45:50,847 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:45:50,859 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:45:50,969 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:45:50,975 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:45:51,394 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:45:51,689 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:45:51,696 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:45:51,944 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:45:52,260 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:45:52,261 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:45:52,261 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:45:53,736 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:45:53,736 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:53,740 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:53,743 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:53,745 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:54,487 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:45:54,487 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:45:54,536 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:45:54,536 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:45:54,537 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:45:54,538 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:45:54,538 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:45:54,539 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:45:54,544 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:45:54,544 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:45:54,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:45:54,586 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:45:54,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i[5469,5482] [2022-12-05 18:45:54,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,606 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:45:54,606 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:54,606 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:54,607 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:54,610 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:45:54,611 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:45:54,623 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:45:54,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:54,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:54,641 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:45:54,641 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:45:54,641 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:45:54,644 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:45:54,644 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:45:54,644 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:45:54,644 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:45:54,654 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:45:54,665 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:45:54,666 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:45:54,669 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:45:54,669 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:45:54,675 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:45:54,681 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:45:54,681 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:45:54,685 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:45:54,688 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:45:54,688 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:45:54,689 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:45:54,745 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:45:54,746 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:54,748 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:54,754 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:54,757 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:54,892 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:45:54,893 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:45:54,897 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:45:54,898 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:45:54,899 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:45:54,900 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:45:54,900 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:45:54,900 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:45:54,901 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:45:54,901 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:45:54,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:45:55,464 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:45:55,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55 WrapperNode [2022-12-05 18:45:55,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:45:55,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:45:55,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:45:55,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:45:55,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,619 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 53, statements flattened = 722 [2022-12-05 18:45:55,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:45:55,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:45:55,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:45:55,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:45:55,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,688 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:45:55,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:45:55,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:45:55,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:45:55,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (1/1) ... [2022-12-05 18:45:55,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:45:55,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:55,748 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) [2022-12-05 18:45:55,780 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 [2022-12-05 18:45:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:45:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 18:45:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:45:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 18:45:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:45:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:45:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-05 18:45:55,798 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-05 18:45:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 18:45:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:45:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-05 18:45:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:45:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:45:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 18:45:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-05 18:45:55,799 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-05 18:45:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:45:55,800 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:45:56,306 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:45:56,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:45:56,836 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:45:56,846 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:45:56,847 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-05 18:45:56,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:45:56 BoogieIcfgContainer [2022-12-05 18:45:56,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:45:56,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:45:56,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:45:56,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:45:56,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:45:48" (1/3) ... [2022-12-05 18:45:56,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec70700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:45:56, skipping insertion in model container [2022-12-05 18:45:56,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:55" (2/3) ... [2022-12-05 18:45:56,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec70700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:45:56, skipping insertion in model container [2022-12-05 18:45:56,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:45:56" (3/3) ... [2022-12-05 18:45:56,856 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_set.i [2022-12-05 18:45:56,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:45:56,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-05 18:45:56,871 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:45:56,954 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 18:45:56,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 738 places, 793 transitions, 1602 flow [2022-12-05 18:45:57,238 INFO L130 PetriNetUnfolder]: 62/791 cut-off events. [2022-12-05 18:45:57,238 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:45:57,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 791 events. 62/791 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1222 event pairs, 0 based on Foata normal form. 0/726 useless extension candidates. Maximal degree in co-relation 719. Up to 9 conditions per place. [2022-12-05 18:45:57,246 INFO L82 GeneralOperation]: Start removeDead. Operand has 738 places, 793 transitions, 1602 flow [2022-12-05 18:45:57,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 728 places, 783 transitions, 1575 flow [2022-12-05 18:45:57,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:45:57,264 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;@3da0f9c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:45:57,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-05 18:45:57,308 INFO L130 PetriNetUnfolder]: 17/377 cut-off events. [2022-12-05 18:45:57,308 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:45:57,309 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:57,309 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:57,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:45:57,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:57,314 INFO L85 PathProgramCache]: Analyzing trace with hash -656113732, now seen corresponding path program 1 times [2022-12-05 18:45:57,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:57,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603057998] [2022-12-05 18:45:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:57,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:58,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:58,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603057998] [2022-12-05 18:45:58,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603057998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:58,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:58,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:45:58,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818660597] [2022-12-05 18:45:58,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:58,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:45:58,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:58,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:45:58,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:45:58,101 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 793 [2022-12-05 18:45:58,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 728 places, 783 transitions, 1575 flow. Second operand has 9 states, 9 states have (on average 725.1111111111111) internal successors, (6526), 9 states have internal predecessors, (6526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:58,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:58,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 793 [2022-12-05 18:45:58,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:58,476 INFO L130 PetriNetUnfolder]: 30/745 cut-off events. [2022-12-05 18:45:58,476 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-12-05 18:45:58,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 745 events. 30/745 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1110 event pairs, 0 based on Foata normal form. 21/732 useless extension candidates. Maximal degree in co-relation 717. Up to 12 conditions per place. [2022-12-05 18:45:58,484 INFO L137 encePairwiseOnDemand]: 745/793 looper letters, 18 selfloop transitions, 16 changer transitions 1/745 dead transitions. [2022-12-05 18:45:58,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 737 places, 745 transitions, 1567 flow [2022-12-05 18:45:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:45:58,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:45:58,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 11634 transitions. [2022-12-05 18:45:58,555 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9169293820933165 [2022-12-05 18:45:58,557 INFO L175 Difference]: Start difference. First operand has 728 places, 783 transitions, 1575 flow. Second operand 16 states and 11634 transitions. [2022-12-05 18:45:58,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 737 places, 745 transitions, 1567 flow [2022-12-05 18:45:58,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 734 places, 745 transitions, 1562 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:45:58,576 INFO L231 Difference]: Finished difference. Result has 734 places, 744 transitions, 1524 flow [2022-12-05 18:45:58,579 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1494, PETRI_DIFFERENCE_MINUEND_PLACES=719, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1524, PETRI_PLACES=734, PETRI_TRANSITIONS=744} [2022-12-05 18:45:58,582 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 6 predicate places. [2022-12-05 18:45:58,582 INFO L495 AbstractCegarLoop]: Abstraction has has 734 places, 744 transitions, 1524 flow [2022-12-05 18:45:58,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 725.1111111111111) internal successors, (6526), 9 states have internal predecessors, (6526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:58,586 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:58,586 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:58,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:45:58,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:45:58,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:58,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2011766741, now seen corresponding path program 1 times [2022-12-05 18:45:58,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:58,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088061440] [2022-12-05 18:45:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:58,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:59,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:59,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088061440] [2022-12-05 18:45:59,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088061440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:59,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:59,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:45:59,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273297234] [2022-12-05 18:45:59,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:59,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:45:59,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:59,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:45:59,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:45:59,303 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 712 out of 793 [2022-12-05 18:45:59,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 734 places, 744 transitions, 1524 flow. Second operand has 6 states, 6 states have (on average 716.6666666666666) internal successors, (4300), 6 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:59,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:59,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 712 of 793 [2022-12-05 18:45:59,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:59,654 INFO L130 PetriNetUnfolder]: 70/1212 cut-off events. [2022-12-05 18:45:59,654 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-05 18:45:59,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 1212 events. 70/1212 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4132 event pairs, 16 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 870. Up to 51 conditions per place. [2022-12-05 18:45:59,662 INFO L137 encePairwiseOnDemand]: 783/793 looper letters, 52 selfloop transitions, 9 changer transitions 0/759 dead transitions. [2022-12-05 18:45:59,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 738 places, 759 transitions, 1680 flow [2022-12-05 18:45:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 18:45:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 18:45:59,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5758 transitions. [2022-12-05 18:45:59,673 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9076292559899117 [2022-12-05 18:45:59,673 INFO L175 Difference]: Start difference. First operand has 734 places, 744 transitions, 1524 flow. Second operand 8 states and 5758 transitions. [2022-12-05 18:45:59,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 738 places, 759 transitions, 1680 flow [2022-12-05 18:45:59,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 723 places, 759 transitions, 1648 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-05 18:45:59,686 INFO L231 Difference]: Finished difference. Result has 724 places, 746 transitions, 1527 flow [2022-12-05 18:45:59,687 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1488, PETRI_DIFFERENCE_MINUEND_PLACES=716, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1527, PETRI_PLACES=724, PETRI_TRANSITIONS=746} [2022-12-05 18:45:59,688 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, -4 predicate places. [2022-12-05 18:45:59,688 INFO L495 AbstractCegarLoop]: Abstraction has has 724 places, 746 transitions, 1527 flow [2022-12-05 18:45:59,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 716.6666666666666) internal successors, (4300), 6 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:59,691 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:59,691 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:59,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:45:59,691 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:45:59,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:59,692 INFO L85 PathProgramCache]: Analyzing trace with hash 579851370, now seen corresponding path program 1 times [2022-12-05 18:45:59,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:59,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540855330] [2022-12-05 18:45:59,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:59,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:00,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:00,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:00,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540855330] [2022-12-05 18:46:00,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540855330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:00,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:46:00,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:46:00,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765334484] [2022-12-05 18:46:00,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:00,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:46:00,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:00,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:46:00,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:46:00,333 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 718 out of 793 [2022-12-05 18:46:00,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 724 places, 746 transitions, 1527 flow. Second operand has 6 states, 6 states have (on average 722.8333333333334) internal successors, (4337), 6 states have internal predecessors, (4337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:00,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:00,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 718 of 793 [2022-12-05 18:46:00,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:00,780 INFO L130 PetriNetUnfolder]: 132/1678 cut-off events. [2022-12-05 18:46:00,780 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-12-05 18:46:00,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 1678 events. 132/1678 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8569 event pairs, 22 based on Foata normal form. 0/1565 useless extension candidates. Maximal degree in co-relation 915. Up to 102 conditions per place. [2022-12-05 18:46:00,788 INFO L137 encePairwiseOnDemand]: 785/793 looper letters, 54 selfloop transitions, 14 changer transitions 4/774 dead transitions. [2022-12-05 18:46:00,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 735 places, 774 transitions, 1737 flow [2022-12-05 18:46:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:46:00,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:46:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8686 transitions. [2022-12-05 18:46:00,802 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9127784783522488 [2022-12-05 18:46:00,802 INFO L175 Difference]: Start difference. First operand has 724 places, 746 transitions, 1527 flow. Second operand 12 states and 8686 transitions. [2022-12-05 18:46:00,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 735 places, 774 transitions, 1737 flow [2022-12-05 18:46:00,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 730 places, 774 transitions, 1728 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 18:46:00,815 INFO L231 Difference]: Finished difference. Result has 734 places, 759 transitions, 1600 flow [2022-12-05 18:46:00,816 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=719, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=746, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1600, PETRI_PLACES=734, PETRI_TRANSITIONS=759} [2022-12-05 18:46:00,817 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 6 predicate places. [2022-12-05 18:46:00,817 INFO L495 AbstractCegarLoop]: Abstraction has has 734 places, 759 transitions, 1600 flow [2022-12-05 18:46:00,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 722.8333333333334) internal successors, (4337), 6 states have internal predecessors, (4337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:00,820 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:00,820 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:00,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:46:00,820 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:00,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:00,821 INFO L85 PathProgramCache]: Analyzing trace with hash -859937081, now seen corresponding path program 1 times [2022-12-05 18:46:00,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:00,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796468162] [2022-12-05 18:46:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:00,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:01,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:01,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796468162] [2022-12-05 18:46:01,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796468162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:01,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:46:01,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:46:01,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219688747] [2022-12-05 18:46:01,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:01,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:46:01,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:01,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:46:01,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:46:01,364 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 735 out of 793 [2022-12-05 18:46:01,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 734 places, 759 transitions, 1600 flow. Second operand has 5 states, 5 states have (on average 736.4) internal successors, (3682), 5 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:01,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:01,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 735 of 793 [2022-12-05 18:46:01,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:01,611 INFO L130 PetriNetUnfolder]: 75/1656 cut-off events. [2022-12-05 18:46:01,612 INFO L131 PetriNetUnfolder]: For 44/50 co-relation queries the response was YES. [2022-12-05 18:46:01,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 1656 events. 75/1656 cut-off events. For 44/50 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6684 event pairs, 0 based on Foata normal form. 0/1570 useless extension candidates. Maximal degree in co-relation 1768. Up to 24 conditions per place. [2022-12-05 18:46:01,623 INFO L137 encePairwiseOnDemand]: 786/793 looper letters, 25 selfloop transitions, 6 changer transitions 0/766 dead transitions. [2022-12-05 18:46:01,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 739 places, 766 transitions, 1680 flow [2022-12-05 18:46:01,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:46:01,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:46:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4441 transitions. [2022-12-05 18:46:01,629 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9333753678015974 [2022-12-05 18:46:01,629 INFO L175 Difference]: Start difference. First operand has 734 places, 759 transitions, 1600 flow. Second operand 6 states and 4441 transitions. [2022-12-05 18:46:01,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 739 places, 766 transitions, 1680 flow [2022-12-05 18:46:01,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 739 places, 766 transitions, 1680 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 18:46:01,642 INFO L231 Difference]: Finished difference. Result has 740 places, 760 transitions, 1620 flow [2022-12-05 18:46:01,644 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1600, PETRI_DIFFERENCE_MINUEND_PLACES=734, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=753, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1620, PETRI_PLACES=740, PETRI_TRANSITIONS=760} [2022-12-05 18:46:01,645 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 12 predicate places. [2022-12-05 18:46:01,645 INFO L495 AbstractCegarLoop]: Abstraction has has 740 places, 760 transitions, 1620 flow [2022-12-05 18:46:01,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 736.4) internal successors, (3682), 5 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:01,647 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:01,647 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:01,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:46:01,648 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:01,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1630285136, now seen corresponding path program 1 times [2022-12-05 18:46:01,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:01,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497058577] [2022-12-05 18:46:01,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:01,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:02,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:02,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497058577] [2022-12-05 18:46:02,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497058577] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:02,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467804519] [2022-12-05 18:46:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:02,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:02,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:02,183 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) [2022-12-05 18:46:02,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 18:46:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:02,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-05 18:46:02,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:02,911 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 [2022-12-05 18:46:02,944 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 [2022-12-05 18:46:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:02,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:02,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467804519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:02,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:02,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-05 18:46:02,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169429135] [2022-12-05 18:46:02,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:02,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:46:02,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:02,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:46:02,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-05 18:46:02,994 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 696 out of 793 [2022-12-05 18:46:02,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 740 places, 760 transitions, 1620 flow. Second operand has 7 states, 7 states have (on average 702.1428571428571) internal successors, (4915), 7 states have internal predecessors, (4915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:02,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:02,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 696 of 793 [2022-12-05 18:46:02,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:04,380 INFO L130 PetriNetUnfolder]: 1278/7209 cut-off events. [2022-12-05 18:46:04,380 INFO L131 PetriNetUnfolder]: For 908/914 co-relation queries the response was YES. [2022-12-05 18:46:04,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10686 conditions, 7209 events. 1278/7209 cut-off events. For 908/914 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 55050 event pairs, 474 based on Foata normal form. 0/6674 useless extension candidates. Maximal degree in co-relation 10458. Up to 759 conditions per place. [2022-12-05 18:46:04,415 INFO L137 encePairwiseOnDemand]: 784/793 looper letters, 88 selfloop transitions, 13 changer transitions 31/821 dead transitions. [2022-12-05 18:46:04,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 751 places, 821 transitions, 2068 flow [2022-12-05 18:46:04,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:46:04,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:46:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8477 transitions. [2022-12-05 18:46:04,427 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8908154686843212 [2022-12-05 18:46:04,427 INFO L175 Difference]: Start difference. First operand has 740 places, 760 transitions, 1620 flow. Second operand 12 states and 8477 transitions. [2022-12-05 18:46:04,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 751 places, 821 transitions, 2068 flow [2022-12-05 18:46:04,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 747 places, 821 transitions, 2058 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 18:46:04,443 INFO L231 Difference]: Finished difference. Result has 755 places, 766 transitions, 1706 flow [2022-12-05 18:46:04,444 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1610, PETRI_DIFFERENCE_MINUEND_PLACES=736, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=747, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1706, PETRI_PLACES=755, PETRI_TRANSITIONS=766} [2022-12-05 18:46:04,444 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 27 predicate places. [2022-12-05 18:46:04,444 INFO L495 AbstractCegarLoop]: Abstraction has has 755 places, 766 transitions, 1706 flow [2022-12-05 18:46:04,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 702.1428571428571) internal successors, (4915), 7 states have internal predecessors, (4915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:04,447 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:04,447 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:04,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:04,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:04,660 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:04,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:04,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1897198957, now seen corresponding path program 1 times [2022-12-05 18:46:04,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:04,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826029587] [2022-12-05 18:46:04,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:04,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:05,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:05,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826029587] [2022-12-05 18:46:05,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826029587] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:05,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563455181] [2022-12-05 18:46:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:05,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:05,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:05,177 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) [2022-12-05 18:46:05,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 18:46:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:05,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 85 conjunts are in the unsatisfiable core [2022-12-05 18:46:05,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:06,040 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:06,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:06,060 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,060 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 [2022-12-05 18:46:06,097 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,097 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 [2022-12-05 18:46:06,136 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:06,137 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 [2022-12-05 18:46:06,172 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,173 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 [2022-12-05 18:46:06,202 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,202 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 [2022-12-05 18:46:06,230 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,230 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 [2022-12-05 18:46:06,267 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:06,267 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 [2022-12-05 18:46:06,299 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,300 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 [2022-12-05 18:46:06,328 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,328 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 [2022-12-05 18:46:06,357 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,357 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 [2022-12-05 18:46:06,388 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,388 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 [2022-12-05 18:46:06,416 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,417 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 [2022-12-05 18:46:06,508 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,509 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 [2022-12-05 18:46:06,641 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-05 18:46:06,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 42 [2022-12-05 18:46:06,695 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,696 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 [2022-12-05 18:46:06,731 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,731 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 [2022-12-05 18:46:06,777 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:06,778 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 [2022-12-05 18:46:06,817 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,818 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 [2022-12-05 18:46:06,851 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,851 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 [2022-12-05 18:46:06,889 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:06,890 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 [2022-12-05 18:46:06,981 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:06,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-12-05 18:46:07,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:07,129 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:07,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-12-05 18:46:07,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-12-05 18:46:07,670 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:07,671 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 [2022-12-05 18:46:07,693 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:46:07,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-12-05 18:46:07,937 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 [2022-12-05 18:46:08,003 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 [2022-12-05 18:46:08,031 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 [2022-12-05 18:46:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:08,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:08,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563455181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:08,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:08,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-05 18:46:08,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045233674] [2022-12-05 18:46:08,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:08,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:46:08,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:08,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:46:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:46:08,091 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 643 out of 793 [2022-12-05 18:46:08,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 755 places, 766 transitions, 1706 flow. Second operand has 14 states, 14 states have (on average 649.2857142857143) internal successors, (9090), 14 states have internal predecessors, (9090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:08,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:08,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 643 of 793 [2022-12-05 18:46:08,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:09,681 INFO L130 PetriNetUnfolder]: 720/4722 cut-off events. [2022-12-05 18:46:09,681 INFO L131 PetriNetUnfolder]: For 3495/3681 co-relation queries the response was YES. [2022-12-05 18:46:09,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7818 conditions, 4722 events. 720/4722 cut-off events. For 3495/3681 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 35761 event pairs, 240 based on Foata normal form. 14/4448 useless extension candidates. Maximal degree in co-relation 7619. Up to 484 conditions per place. [2022-12-05 18:46:09,719 INFO L137 encePairwiseOnDemand]: 778/793 looper letters, 130 selfloop transitions, 24 changer transitions 15/810 dead transitions. [2022-12-05 18:46:09,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 767 places, 810 transitions, 2266 flow [2022-12-05 18:46:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 18:46:09,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 18:46:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 11088 transitions. [2022-12-05 18:46:09,739 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8224909131370076 [2022-12-05 18:46:09,739 INFO L175 Difference]: Start difference. First operand has 755 places, 766 transitions, 1706 flow. Second operand 17 states and 11088 transitions. [2022-12-05 18:46:09,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 767 places, 810 transitions, 2266 flow [2022-12-05 18:46:09,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 762 places, 810 transitions, 2236 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-12-05 18:46:09,763 INFO L231 Difference]: Finished difference. Result has 770 places, 771 transitions, 1820 flow [2022-12-05 18:46:09,764 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1688, PETRI_DIFFERENCE_MINUEND_PLACES=746, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=742, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1820, PETRI_PLACES=770, PETRI_TRANSITIONS=771} [2022-12-05 18:46:09,765 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 42 predicate places. [2022-12-05 18:46:09,765 INFO L495 AbstractCegarLoop]: Abstraction has has 770 places, 771 transitions, 1820 flow [2022-12-05 18:46:09,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 649.2857142857143) internal successors, (9090), 14 states have internal predecessors, (9090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:09,770 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:09,770 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:09,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:09,978 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 [2022-12-05 18:46:09,979 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:09,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:09,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1596722274, now seen corresponding path program 1 times [2022-12-05 18:46:09,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:09,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731608362] [2022-12-05 18:46:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:09,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:11,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:11,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:11,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731608362] [2022-12-05 18:46:11,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731608362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:11,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:46:11,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-05 18:46:11,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941435796] [2022-12-05 18:46:11,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:11,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:46:11,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:11,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:46:11,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:46:11,739 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 658 out of 793 [2022-12-05 18:46:11,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 771 transitions, 1820 flow. Second operand has 16 states, 16 states have (on average 663.375) internal successors, (10614), 16 states have internal predecessors, (10614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:11,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:11,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 658 of 793 [2022-12-05 18:46:11,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:12,506 INFO L130 PetriNetUnfolder]: 214/2152 cut-off events. [2022-12-05 18:46:12,507 INFO L131 PetriNetUnfolder]: For 1662/1958 co-relation queries the response was YES. [2022-12-05 18:46:12,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3506 conditions, 2152 events. 214/2152 cut-off events. For 1662/1958 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12315 event pairs, 24 based on Foata normal form. 90/2134 useless extension candidates. Maximal degree in co-relation 3340. Up to 79 conditions per place. [2022-12-05 18:46:12,519 INFO L137 encePairwiseOnDemand]: 774/793 looper letters, 92 selfloop transitions, 20 changer transitions 36/791 dead transitions. [2022-12-05 18:46:12,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 779 places, 791 transitions, 2241 flow [2022-12-05 18:46:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:46:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:46:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 10646 transitions. [2022-12-05 18:46:12,536 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8390605296343001 [2022-12-05 18:46:12,536 INFO L175 Difference]: Start difference. First operand has 770 places, 771 transitions, 1820 flow. Second operand 16 states and 10646 transitions. [2022-12-05 18:46:12,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 779 places, 791 transitions, 2241 flow [2022-12-05 18:46:12,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 767 places, 791 transitions, 2193 flow, removed 8 selfloop flow, removed 12 redundant places. [2022-12-05 18:46:12,550 INFO L231 Difference]: Finished difference. Result has 767 places, 749 transitions, 1681 flow [2022-12-05 18:46:12,551 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1766, PETRI_DIFFERENCE_MINUEND_PLACES=752, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=769, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=749, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1681, PETRI_PLACES=767, PETRI_TRANSITIONS=749} [2022-12-05 18:46:12,552 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 39 predicate places. [2022-12-05 18:46:12,552 INFO L495 AbstractCegarLoop]: Abstraction has has 767 places, 749 transitions, 1681 flow [2022-12-05 18:46:12,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 663.375) internal successors, (10614), 16 states have internal predecessors, (10614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:12,556 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:12,556 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:12,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:46:12,556 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:12,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:12,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1336251252, now seen corresponding path program 1 times [2022-12-05 18:46:12,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:12,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918997815] [2022-12-05 18:46:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:12,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:12,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:12,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918997815] [2022-12-05 18:46:12,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918997815] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:12,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388572566] [2022-12-05 18:46:12,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:12,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:12,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:12,937 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) [2022-12-05 18:46:12,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 18:46:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:13,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-05 18:46:13,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:13,749 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:13,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:13,769 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:13,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:13,789 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-05 18:46:13,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-05 18:46:13,814 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:46:13,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:46:14,412 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 [2022-12-05 18:46:14,657 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 [2022-12-05 18:46:14,692 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 [2022-12-05 18:46:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:14,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:14,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388572566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:14,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:14,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-05 18:46:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280841347] [2022-12-05 18:46:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:14,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:46:14,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:14,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:46:14,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:46:14,754 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 793 [2022-12-05 18:46:14,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 767 places, 749 transitions, 1681 flow. Second operand has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:14,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:14,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 793 [2022-12-05 18:46:14,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:16,035 INFO L130 PetriNetUnfolder]: 1310/6420 cut-off events. [2022-12-05 18:46:16,035 INFO L131 PetriNetUnfolder]: For 7289/7305 co-relation queries the response was YES. [2022-12-05 18:46:16,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10946 conditions, 6420 events. 1310/6420 cut-off events. For 7289/7305 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 50151 event pairs, 740 based on Foata normal form. 16/6030 useless extension candidates. Maximal degree in co-relation 10662. Up to 1192 conditions per place. [2022-12-05 18:46:16,069 INFO L137 encePairwiseOnDemand]: 775/793 looper letters, 126 selfloop transitions, 12 changer transitions 41/806 dead transitions. [2022-12-05 18:46:16,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 771 places, 806 transitions, 2284 flow [2022-12-05 18:46:16,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 18:46:16,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 18:46:16,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 11086 transitions. [2022-12-05 18:46:16,076 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8223425561901936 [2022-12-05 18:46:16,076 INFO L175 Difference]: Start difference. First operand has 767 places, 749 transitions, 1681 flow. Second operand 17 states and 11086 transitions. [2022-12-05 18:46:16,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 771 places, 806 transitions, 2284 flow [2022-12-05 18:46:16,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 745 places, 806 transitions, 2114 flow, removed 29 selfloop flow, removed 26 redundant places. [2022-12-05 18:46:16,093 INFO L231 Difference]: Finished difference. Result has 753 places, 748 transitions, 1632 flow [2022-12-05 18:46:16,093 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1593, PETRI_DIFFERENCE_MINUEND_PLACES=729, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=737, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1632, PETRI_PLACES=753, PETRI_TRANSITIONS=748} [2022-12-05 18:46:16,095 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 25 predicate places. [2022-12-05 18:46:16,095 INFO L495 AbstractCegarLoop]: Abstraction has has 753 places, 748 transitions, 1632 flow [2022-12-05 18:46:16,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:16,097 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:16,097 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:16,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:16,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:16,306 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:16,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:16,306 INFO L85 PathProgramCache]: Analyzing trace with hash 528677558, now seen corresponding path program 2 times [2022-12-05 18:46:16,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:16,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578250968] [2022-12-05 18:46:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:16,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:16,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:16,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578250968] [2022-12-05 18:46:16,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578250968] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:16,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126151537] [2022-12-05 18:46:16,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:46:16,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:16,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:16,831 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:16,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-05 18:46:17,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 18:46:17,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:17,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-05 18:46:17,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:17,771 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:17,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:17,791 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:17,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:17,811 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:17,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:17,827 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:46:17,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:46:18,451 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 [2022-12-05 18:46:18,488 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 [2022-12-05 18:46:18,510 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 [2022-12-05 18:46:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:18,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:18,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126151537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:18,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:18,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-05 18:46:18,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077179726] [2022-12-05 18:46:18,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:18,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:46:18,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:18,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:46:18,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:46:18,562 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 793 [2022-12-05 18:46:18,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 753 places, 748 transitions, 1632 flow. Second operand has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:18,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:18,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 793 [2022-12-05 18:46:18,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:20,073 INFO L130 PetriNetUnfolder]: 1320/6558 cut-off events. [2022-12-05 18:46:20,073 INFO L131 PetriNetUnfolder]: For 2745/2749 co-relation queries the response was YES. [2022-12-05 18:46:20,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10081 conditions, 6558 events. 1320/6558 cut-off events. For 2745/2749 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 51662 event pairs, 214 based on Foata normal form. 12/6158 useless extension candidates. Maximal degree in co-relation 9800. Up to 1016 conditions per place. [2022-12-05 18:46:20,102 INFO L137 encePairwiseOnDemand]: 777/793 looper letters, 145 selfloop transitions, 9 changer transitions 37/818 dead transitions. [2022-12-05 18:46:20,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 759 places, 818 transitions, 2267 flow [2022-12-05 18:46:20,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-05 18:46:20,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-05 18:46:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 9810 transitions. [2022-12-05 18:46:20,109 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8247162673392182 [2022-12-05 18:46:20,109 INFO L175 Difference]: Start difference. First operand has 753 places, 748 transitions, 1632 flow. Second operand 15 states and 9810 transitions. [2022-12-05 18:46:20,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 759 places, 818 transitions, 2267 flow [2022-12-05 18:46:20,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 745 places, 818 transitions, 2207 flow, removed 11 selfloop flow, removed 14 redundant places. [2022-12-05 18:46:20,122 INFO L231 Difference]: Finished difference. Result has 751 places, 748 transitions, 1630 flow [2022-12-05 18:46:20,123 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1595, PETRI_DIFFERENCE_MINUEND_PLACES=731, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1630, PETRI_PLACES=751, PETRI_TRANSITIONS=748} [2022-12-05 18:46:20,123 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 23 predicate places. [2022-12-05 18:46:20,123 INFO L495 AbstractCegarLoop]: Abstraction has has 751 places, 748 transitions, 1630 flow [2022-12-05 18:46:20,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:20,125 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:20,125 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:20,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:20,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:20,334 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:20,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:20,334 INFO L85 PathProgramCache]: Analyzing trace with hash -340272866, now seen corresponding path program 3 times [2022-12-05 18:46:20,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:20,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582525495] [2022-12-05 18:46:20,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:20,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:20,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:20,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:20,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582525495] [2022-12-05 18:46:20,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582525495] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:20,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654195891] [2022-12-05 18:46:20,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 18:46:20,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:20,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:20,710 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:20,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-05 18:46:21,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-05 18:46:21,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:21,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-05 18:46:21,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:21,442 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:21,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:21,461 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:21,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:21,480 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:21,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:21,493 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:46:21,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:46:22,046 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 [2022-12-05 18:46:22,219 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 [2022-12-05 18:46:22,273 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 [2022-12-05 18:46:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:22,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:22,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654195891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:22,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:22,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-05 18:46:22,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209871010] [2022-12-05 18:46:22,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:22,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:46:22,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:46:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:46:22,337 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 793 [2022-12-05 18:46:22,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 751 places, 748 transitions, 1630 flow. Second operand has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:22,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:22,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 793 [2022-12-05 18:46:22,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:23,951 INFO L130 PetriNetUnfolder]: 1444/7116 cut-off events. [2022-12-05 18:46:23,951 INFO L131 PetriNetUnfolder]: For 3287/3407 co-relation queries the response was YES. [2022-12-05 18:46:24,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11143 conditions, 7116 events. 1444/7116 cut-off events. For 3287/3407 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 57793 event pairs, 766 based on Foata normal form. 68/6716 useless extension candidates. Maximal degree in co-relation 10862. Up to 1192 conditions per place. [2022-12-05 18:46:24,086 INFO L137 encePairwiseOnDemand]: 775/793 looper letters, 143 selfloop transitions, 16 changer transitions 35/821 dead transitions. [2022-12-05 18:46:24,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 762 places, 821 transitions, 2305 flow [2022-12-05 18:46:24,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:46:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:46:24,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 11743 transitions. [2022-12-05 18:46:24,111 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8226846013731259 [2022-12-05 18:46:24,111 INFO L175 Difference]: Start difference. First operand has 751 places, 748 transitions, 1630 flow. Second operand 18 states and 11743 transitions. [2022-12-05 18:46:24,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 762 places, 821 transitions, 2305 flow [2022-12-05 18:46:24,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 750 places, 821 transitions, 2242 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-12-05 18:46:24,143 INFO L231 Difference]: Finished difference. Result has 757 places, 752 transitions, 1692 flow [2022-12-05 18:46:24,145 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1599, PETRI_DIFFERENCE_MINUEND_PLACES=733, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1692, PETRI_PLACES=757, PETRI_TRANSITIONS=752} [2022-12-05 18:46:24,145 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 29 predicate places. [2022-12-05 18:46:24,145 INFO L495 AbstractCegarLoop]: Abstraction has has 757 places, 752 transitions, 1692 flow [2022-12-05 18:46:24,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 648.7142857142857) internal successors, (9082), 14 states have internal predecessors, (9082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:24,147 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:24,147 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:24,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:24,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-05 18:46:24,357 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:24,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:24,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1798668958, now seen corresponding path program 4 times [2022-12-05 18:46:24,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:24,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699737279] [2022-12-05 18:46:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:24,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:24,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699737279] [2022-12-05 18:46:24,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699737279] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:24,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623702867] [2022-12-05 18:46:24,868 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-05 18:46:24,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:24,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:24,869 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:24,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-05 18:46:25,467 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-05 18:46:25,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:25,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-05 18:46:25,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:25,708 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:25,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:25,756 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:25,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:25,778 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:25,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:25,791 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:46:25,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:46:26,507 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 [2022-12-05 18:46:26,587 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 [2022-12-05 18:46:26,609 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 [2022-12-05 18:46:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:26,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:26,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623702867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:26,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:26,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:46:26,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441593028] [2022-12-05 18:46:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:26,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:46:26,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:46:26,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:46:26,655 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 637 out of 793 [2022-12-05 18:46:26,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 757 places, 752 transitions, 1692 flow. Second operand has 16 states, 16 states have (on average 643.125) internal successors, (10290), 16 states have internal predecessors, (10290), 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) [2022-12-05 18:46:26,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:26,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 637 of 793 [2022-12-05 18:46:26,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:28,284 INFO L130 PetriNetUnfolder]: 1248/5962 cut-off events. [2022-12-05 18:46:28,284 INFO L131 PetriNetUnfolder]: For 3483/3675 co-relation queries the response was YES. [2022-12-05 18:46:28,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9851 conditions, 5962 events. 1248/5962 cut-off events. For 3483/3675 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 45843 event pairs, 432 based on Foata normal form. 46/5596 useless extension candidates. Maximal degree in co-relation 9564. Up to 1364 conditions per place. [2022-12-05 18:46:28,322 INFO L137 encePairwiseOnDemand]: 775/793 looper letters, 127 selfloop transitions, 11 changer transitions 50/811 dead transitions. [2022-12-05 18:46:28,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 770 places, 811 transitions, 2287 flow [2022-12-05 18:46:28,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-05 18:46:28,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-05 18:46:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 12280 transitions. [2022-12-05 18:46:28,332 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8150262162341542 [2022-12-05 18:46:28,332 INFO L175 Difference]: Start difference. First operand has 757 places, 752 transitions, 1692 flow. Second operand 19 states and 12280 transitions. [2022-12-05 18:46:28,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 770 places, 811 transitions, 2287 flow [2022-12-05 18:46:28,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 759 places, 811 transitions, 2238 flow, removed 11 selfloop flow, removed 11 redundant places. [2022-12-05 18:46:28,351 INFO L231 Difference]: Finished difference. Result has 768 places, 750 transitions, 1678 flow [2022-12-05 18:46:28,352 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1656, PETRI_DIFFERENCE_MINUEND_PLACES=741, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=741, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1678, PETRI_PLACES=768, PETRI_TRANSITIONS=750} [2022-12-05 18:46:28,352 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 40 predicate places. [2022-12-05 18:46:28,352 INFO L495 AbstractCegarLoop]: Abstraction has has 768 places, 750 transitions, 1678 flow [2022-12-05 18:46:28,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 643.125) internal successors, (10290), 16 states have internal predecessors, (10290), 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) [2022-12-05 18:46:28,355 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:28,355 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:28,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:28,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:28,565 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:28,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:28,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1374013470, now seen corresponding path program 5 times [2022-12-05 18:46:28,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:28,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574711316] [2022-12-05 18:46:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:28,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:28,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574711316] [2022-12-05 18:46:28,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574711316] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:28,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387960450] [2022-12-05 18:46:28,968 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-05 18:46:28,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:28,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:28,985 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:28,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-05 18:46:29,503 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 18:46:29,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:29,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-05 18:46:29,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:29,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:29,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 18:46:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:29,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387960450] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 18:46:29,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 18:46:29,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2022-12-05 18:46:29,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75768556] [2022-12-05 18:46:29,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 18:46:29,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:46:29,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:29,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:46:29,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-05 18:46:29,727 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 735 out of 793 [2022-12-05 18:46:29,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 768 places, 750 transitions, 1678 flow. Second operand has 12 states, 12 states have (on average 737.0) internal successors, (8844), 12 states have internal predecessors, (8844), 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) [2022-12-05 18:46:29,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:29,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 735 of 793 [2022-12-05 18:46:29,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:30,276 INFO L130 PetriNetUnfolder]: 81/1632 cut-off events. [2022-12-05 18:46:30,276 INFO L131 PetriNetUnfolder]: For 565/595 co-relation queries the response was YES. [2022-12-05 18:46:30,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2067 conditions, 1632 events. 81/1632 cut-off events. For 565/595 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5302 event pairs, 0 based on Foata normal form. 9/1559 useless extension candidates. Maximal degree in co-relation 2015. Up to 31 conditions per place. [2022-12-05 18:46:30,289 INFO L137 encePairwiseOnDemand]: 780/793 looper letters, 27 selfloop transitions, 18 changer transitions 0/770 dead transitions. [2022-12-05 18:46:30,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 772 places, 770 transitions, 1816 flow [2022-12-05 18:46:30,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-05 18:46:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-05 18:46:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 11074 transitions. [2022-12-05 18:46:30,310 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9309794031105506 [2022-12-05 18:46:30,310 INFO L175 Difference]: Start difference. First operand has 768 places, 750 transitions, 1678 flow. Second operand 15 states and 11074 transitions. [2022-12-05 18:46:30,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 772 places, 770 transitions, 1816 flow [2022-12-05 18:46:30,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 754 places, 770 transitions, 1766 flow, removed 14 selfloop flow, removed 18 redundant places. [2022-12-05 18:46:30,325 INFO L231 Difference]: Finished difference. Result has 757 places, 757 transitions, 1703 flow [2022-12-05 18:46:30,326 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1628, PETRI_DIFFERENCE_MINUEND_PLACES=740, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=750, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=736, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1703, PETRI_PLACES=757, PETRI_TRANSITIONS=757} [2022-12-05 18:46:30,326 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 29 predicate places. [2022-12-05 18:46:30,327 INFO L495 AbstractCegarLoop]: Abstraction has has 757 places, 757 transitions, 1703 flow [2022-12-05 18:46:30,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 737.0) internal successors, (8844), 12 states have internal predecessors, (8844), 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) [2022-12-05 18:46:30,329 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:30,329 INFO L213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:30,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:30,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:30,539 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1664259401, now seen corresponding path program 6 times [2022-12-05 18:46:30,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:30,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851012345] [2022-12-05 18:46:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:30,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:31,240 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:31,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:31,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851012345] [2022-12-05 18:46:31,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851012345] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:31,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313429494] [2022-12-05 18:46:31,241 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-05 18:46:31,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:31,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:31,256 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:31,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-05 18:46:31,895 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-05 18:46:31,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:31,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-05 18:46:31,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:32,119 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:32,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:32,137 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-05 18:46:32,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-05 18:46:32,179 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:32,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:32,236 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-12-05 18:46:32,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:32,998 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 [2022-12-05 18:46:33,102 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 [2022-12-05 18:46:33,132 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 [2022-12-05 18:46:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-05 18:46:33,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:33,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313429494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:33,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:33,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [10] total 23 [2022-12-05 18:46:33,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883184794] [2022-12-05 18:46:33,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:33,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:46:33,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:33,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:46:33,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2022-12-05 18:46:33,180 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 793 [2022-12-05 18:46:33,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 757 places, 757 transitions, 1703 flow. Second operand has 15 states, 15 states have (on average 648.2666666666667) internal successors, (9724), 15 states have internal predecessors, (9724), 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) [2022-12-05 18:46:33,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:33,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 793 [2022-12-05 18:46:33,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:35,100 INFO L130 PetriNetUnfolder]: 1821/8997 cut-off events. [2022-12-05 18:46:35,101 INFO L131 PetriNetUnfolder]: For 3376/3472 co-relation queries the response was YES. [2022-12-05 18:46:35,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13722 conditions, 8997 events. 1821/8997 cut-off events. For 3376/3472 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 69975 event pairs, 1059 based on Foata normal form. 54/8440 useless extension candidates. Maximal degree in co-relation 13410. Up to 1785 conditions per place. [2022-12-05 18:46:35,133 INFO L137 encePairwiseOnDemand]: 775/793 looper letters, 107 selfloop transitions, 13 changer transitions 48/802 dead transitions. [2022-12-05 18:46:35,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 775 places, 802 transitions, 2192 flow [2022-12-05 18:46:35,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-05 18:46:35,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-05 18:46:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 12360 transitions. [2022-12-05 18:46:35,140 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8203358332780248 [2022-12-05 18:46:35,140 INFO L175 Difference]: Start difference. First operand has 757 places, 757 transitions, 1703 flow. Second operand 19 states and 12360 transitions. [2022-12-05 18:46:35,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 775 places, 802 transitions, 2192 flow [2022-12-05 18:46:35,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 767 places, 802 transitions, 2161 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-12-05 18:46:35,154 INFO L231 Difference]: Finished difference. Result has 771 places, 752 transitions, 1661 flow [2022-12-05 18:46:35,155 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1677, PETRI_DIFFERENCE_MINUEND_PLACES=749, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=757, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=744, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1661, PETRI_PLACES=771, PETRI_TRANSITIONS=752} [2022-12-05 18:46:35,156 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 43 predicate places. [2022-12-05 18:46:35,156 INFO L495 AbstractCegarLoop]: Abstraction has has 771 places, 752 transitions, 1661 flow [2022-12-05 18:46:35,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 648.2666666666667) internal successors, (9724), 15 states have internal predecessors, (9724), 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) [2022-12-05 18:46:35,158 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:35,158 INFO L213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:35,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:35,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-05 18:46:35,370 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:46:35,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:35,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1297024533, now seen corresponding path program 7 times [2022-12-05 18:46:35,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:35,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068371590] [2022-12-05 18:46:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:35,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:35,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:35,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068371590] [2022-12-05 18:46:35,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068371590] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:35,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406459485] [2022-12-05 18:46:35,915 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-05 18:46:35,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:35,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:35,917 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:35,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-05 18:46:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:36,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 104 conjunts are in the unsatisfiable core [2022-12-05 18:46:36,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:36,785 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:36,785 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 17 treesize of output 21 [2022-12-05 18:46:36,798 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-05 18:46:36,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-05 18:46:36,857 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-05 18:46:36,857 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 5 case distinctions, treesize of input 22 treesize of output 33 [2022-12-05 18:46:36,990 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-05 18:46:36,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-12-05 18:46:37,108 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-12-05 18:46:37,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 30 [2022-12-05 18:46:37,171 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,171 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 [2022-12-05 18:46:37,215 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,215 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 [2022-12-05 18:46:37,264 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,265 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 [2022-12-05 18:46:37,321 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,321 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 [2022-12-05 18:46:37,548 INFO L321 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2022-12-05 18:46:37,549 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 [2022-12-05 18:46:37,893 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,894 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 [2022-12-05 18:46:37,940 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,940 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 [2022-12-05 18:46:37,988 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,989 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 [2022-12-05 18:46:38,040 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,041 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 [2022-12-05 18:46:38,087 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,087 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 [2022-12-05 18:46:38,131 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,132 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 [2022-12-05 18:46:38,179 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,179 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 [2022-12-05 18:46:38,230 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,230 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 [2022-12-05 18:46:38,287 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,288 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 [2022-12-05 18:46:38,347 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,347 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 [2022-12-05 18:46:38,403 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,403 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 [2022-12-05 18:46:38,897 INFO L321 Elim1Store]: treesize reduction 62, result has 41.5 percent of original size [2022-12-05 18:46:38,898 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 77 [2022-12-05 18:46:39,392 INFO L321 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2022-12-05 18:46:39,393 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 [2022-12-05 18:46:40,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:40,979 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:40,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-05 18:46:41,014 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:46:41,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-12-05 18:46:41,728 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 [2022-12-05 18:46:41,829 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 [2022-12-05 18:46:42,164 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 [2022-12-05 18:46:42,196 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 [2022-12-05 18:46:42,249 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-05 18:46:42,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:42,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406459485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:42,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:42,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [9] total 33 [2022-12-05 18:46:42,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297567785] [2022-12-05 18:46:42,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:42,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-05 18:46:42,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-05 18:46:42,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2022-12-05 18:46:42,256 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 793 [2022-12-05 18:46:42,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 771 places, 752 transitions, 1661 flow. Second operand has 26 states, 26 states have (on average 632.9615384615385) internal successors, (16457), 26 states have internal predecessors, (16457), 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) [2022-12-05 18:46:42,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:42,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 793 [2022-12-05 18:46:42,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:44,250 INFO L130 PetriNetUnfolder]: 525/3066 cut-off events. [2022-12-05 18:46:44,250 INFO L131 PetriNetUnfolder]: For 895/901 co-relation queries the response was YES. [2022-12-05 18:46:44,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4820 conditions, 3066 events. 525/3066 cut-off events. For 895/901 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 14473 event pairs, 117 based on Foata normal form. 18/2907 useless extension candidates. Maximal degree in co-relation 4638. Up to 305 conditions per place. [2022-12-05 18:46:44,259 INFO L137 encePairwiseOnDemand]: 769/793 looper letters, 0 selfloop transitions, 0 changer transitions 794/794 dead transitions. [2022-12-05 18:46:44,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 784 places, 794 transitions, 2147 flow [2022-12-05 18:46:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-05 18:46:44,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-05 18:46:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 17151 transitions. [2022-12-05 18:46:44,267 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8010368502171781 [2022-12-05 18:46:44,267 INFO L175 Difference]: Start difference. First operand has 771 places, 752 transitions, 1661 flow. Second operand 27 states and 17151 transitions. [2022-12-05 18:46:44,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 784 places, 794 transitions, 2147 flow [2022-12-05 18:46:44,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 764 places, 794 transitions, 2082 flow, removed 11 selfloop flow, removed 20 redundant places. [2022-12-05 18:46:44,275 INFO L231 Difference]: Finished difference. Result has 764 places, 0 transitions, 0 flow [2022-12-05 18:46:44,276 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=793, PETRI_DIFFERENCE_MINUEND_FLOW=1608, PETRI_DIFFERENCE_MINUEND_PLACES=738, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=750, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=750, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=0, PETRI_PLACES=764, PETRI_TRANSITIONS=0} [2022-12-05 18:46:44,276 INFO L294 CegarLoopForPetriNet]: 728 programPoint places, 36 predicate places. [2022-12-05 18:46:44,276 INFO L495 AbstractCegarLoop]: Abstraction has has 764 places, 0 transitions, 0 flow [2022-12-05 18:46:44,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 632.9615384615385) internal successors, (16457), 26 states have internal predecessors, (16457), 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) [2022-12-05 18:46:44,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-05 18:46:44,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-05 18:46:44,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-05 18:46:44,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-05 18:46:44,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-05 18:46:44,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-05 18:46:44,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-05 18:46:44,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:44,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-05 18:46:44,490 INFO L458 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:44,495 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:46:44,495 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:46:44,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:46:44 BasicIcfg [2022-12-05 18:46:44,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:46:44,499 INFO L158 Benchmark]: Toolchain (without parser) took 56460.69ms. Allocated memory was 255.9MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 220.2MB in the beginning and 594.8MB in the end (delta: -374.7MB). Peak memory consumption was 876.1MB. Max. memory is 8.0GB. [2022-12-05 18:46:44,500 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 255.9MB. Free memory is still 232.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:46:44,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7424.78ms. Allocated memory was 255.9MB in the beginning and 307.2MB in the end (delta: 51.4MB). Free memory was 220.2MB in the beginning and 246.9MB in the end (delta: -26.7MB). Peak memory consumption was 183.5MB. Max. memory is 8.0GB. [2022-12-05 18:46:44,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.60ms. Allocated memory is still 307.2MB. Free memory was 246.9MB in the beginning and 235.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-05 18:46:44,500 INFO L158 Benchmark]: Boogie Preprocessor took 87.04ms. Allocated memory is still 307.2MB. Free memory was 235.3MB in the beginning and 229.6MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-05 18:46:44,501 INFO L158 Benchmark]: RCFGBuilder took 1141.41ms. Allocated memory is still 307.2MB. Free memory was 229.6MB in the beginning and 164.5MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. [2022-12-05 18:46:44,501 INFO L158 Benchmark]: TraceAbstraction took 47647.95ms. Allocated memory was 307.2MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 164.0MB in the beginning and 594.8MB in the end (delta: -430.8MB). Peak memory consumption was 767.2MB. Max. memory is 8.0GB. [2022-12-05 18:46:44,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 255.9MB. Free memory is still 232.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 7424.78ms. Allocated memory was 255.9MB in the beginning and 307.2MB in the end (delta: 51.4MB). Free memory was 220.2MB in the beginning and 246.9MB in the end (delta: -26.7MB). Peak memory consumption was 183.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 154.60ms. Allocated memory is still 307.2MB. Free memory was 246.9MB in the beginning and 235.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 87.04ms. Allocated memory is still 307.2MB. Free memory was 235.3MB in the beginning and 229.6MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1141.41ms. Allocated memory is still 307.2MB. Free memory was 229.6MB in the beginning and 164.5MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. * TraceAbstraction took 47647.95ms. Allocated memory was 307.2MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 164.0MB in the beginning and 594.8MB in the end (delta: -430.8MB). Peak memory consumption was 767.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 897 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 47.5s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2599 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2599 mSDsluCounter, 5215 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4433 mSDsCounter, 350 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6609 IncrementalHoareTripleChecker+Invalid, 6959 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 350 mSolverCounterUnsat, 782 mSDtfsCounter, 6609 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3546 GetRequests, 3211 SyntacticMatches, 4 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1649 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1820occurred in iteration=6, InterpolantAutomatonStates: 217, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 21.2s InterpolantComputationTime, 7277 NumberOfCodeBlocks, 7235 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 7583 ConstructedInterpolants, 44 QuantifiedInterpolants, 34944 SizeOfPredicates, 170 NumberOfNonLiveVariables, 10032 ConjunctsInSsa, 424 ConjunctsInUnsatCore, 24 InterpolantComputations, 13 PerfectInterpolantSequences, 99/200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:46:44,521 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...