/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_change_pc8736x_gpio_get.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:43:57,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:43:57,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:43:57,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:43:57,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:43:57,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:43:57,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:43:57,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:43:57,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:43:57,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:43:57,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:43:57,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:43:57,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:43:57,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:43:57,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:43:57,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:43:57,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:43:57,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:43:57,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:43:57,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:43:57,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:43:57,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:43:57,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:43:57,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:43:57,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:43:57,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:43:57,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:43:57,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:43:57,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:43:57,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:43:57,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:43:57,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:43:57,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:43:57,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:43:57,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:43:57,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:43:57,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:43:57,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:43:57,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:43:57,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:43:57,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:43:57,686 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 18:43:57,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:43:57,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:43:57,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:43:57,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:43:57,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:43:57,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:43:57,712 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:43:57,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:43:57,713 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:43:57,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:43:57,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:43:57,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:43:57,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:43:57,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:43:57,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:43:57,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:43:57,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:43:57,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:43:57,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:43:57,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:43:57,715 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:43:57,715 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:43:57,716 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:43:57,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:43:58,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:43:58,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:43:58,010 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:43:58,010 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:43:58,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2022-12-05 18:43:59,172 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:43:59,543 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:43:59,543 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2022-12-05 18:43:59,582 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7ea0cbae/5ef24dec500147058d2ccdd3f5712fcf/FLAGb5ce3bba2 [2022-12-05 18:43:59,595 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7ea0cbae/5ef24dec500147058d2ccdd3f5712fcf [2022-12-05 18:43:59,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:43:59,598 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:43:59,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:43:59,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:43:59,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:43:59,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:43:59" (1/1) ... [2022-12-05 18:43:59,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4557e555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:43:59, skipping insertion in model container [2022-12-05 18:43:59,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:43:59" (1/1) ... [2022-12-05 18:43:59,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:43:59,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:43:59,964 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_change_pc8736x_gpio_get.i[5469,5482] [2022-12-05 18:44:00,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,331 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,332 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,339 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,365 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:44:00,374 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:00,381 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:00,394 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:00,610 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:00,619 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:00,815 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:44:00,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:00,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:00,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:01,316 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:44:01,322 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:44:01,329 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:44:01,517 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:44:01,518 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:01,524 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:44:01,525 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:01,835 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:44:02,529 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:02,534 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:02,569 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:44:02,571 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:44:02,743 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:44:02,853 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:44:02,856 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:44:02,957 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:44:03,071 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:44:03,071 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:44:03,072 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:44:03,671 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:44:03,672 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:03,677 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:03,681 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:03,687 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:04,297 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:04,298 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:04,344 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:44:04,345 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:44:04,346 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:44:04,347 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:04,347 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:44:04,347 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:44:04,353 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:04,353 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:44:04,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:44:04,393 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:44:04,403 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_change_pc8736x_gpio_get.i[5469,5482] [2022-12-05 18:44:04,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,412 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:44:04,412 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:04,412 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:04,413 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:04,416 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:04,416 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:04,418 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:44:04,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:04,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:04,432 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:44:04,432 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:44:04,432 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:44:04,435 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:44:04,435 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:04,435 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:44:04,435 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:04,441 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:44:04,450 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:04,451 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:04,453 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:44:04,453 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:44:04,459 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:44:04,464 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:44:04,464 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:44:04,468 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:44:04,472 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:44:04,472 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:44:04,472 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:44:04,527 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:44:04,527 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:04,531 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:04,534 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:04,537 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:04,652 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:04,653 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:04,656 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:44:04,657 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:44:04,657 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:44:04,658 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:04,658 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:44:04,659 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:44:04,659 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:04,659 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:44:04,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:44:05,011 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:44:05,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05 WrapperNode [2022-12-05 18:44:05,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:44:05,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:44:05,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:44:05,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:44:05,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,134 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 774 [2022-12-05 18:44:05,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:44:05,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:44:05,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:44:05,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:44:05,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:44:05,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:44:05,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:44:05,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:44:05,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (1/1) ... [2022-12-05 18:44:05,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:44:05,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:05,255 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 18:44:05,274 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 18:44:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:44:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 18:44:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-05 18:44:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:44:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-05 18:44:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 18:44:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:44:05,297 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 18:44:05,719 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:44:05,721 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:44:06,360 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:44:06,376 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:44:06,376 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-05 18:44:06,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:44:06 BoogieIcfgContainer [2022-12-05 18:44:06,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:44:06,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:44:06,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:44:06,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:44:06,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:43:59" (1/3) ... [2022-12-05 18:44:06,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3b7036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:44:06, skipping insertion in model container [2022-12-05 18:44:06,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:05" (2/3) ... [2022-12-05 18:44:06,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3b7036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:44:06, skipping insertion in model container [2022-12-05 18:44:06,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:44:06" (3/3) ... [2022-12-05 18:44:06,384 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2022-12-05 18:44:06,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:44:06,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-05 18:44:06,398 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:44:06,508 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 18:44:06,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 792 places, 856 transitions, 1728 flow [2022-12-05 18:44:06,801 INFO L130 PetriNetUnfolder]: 71/854 cut-off events. [2022-12-05 18:44:06,802 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:44:06,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 854 events. 71/854 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1429 event pairs, 0 based on Foata normal form. 0/780 useless extension candidates. Maximal degree in co-relation 652. Up to 9 conditions per place. [2022-12-05 18:44:06,810 INFO L82 GeneralOperation]: Start removeDead. Operand has 792 places, 856 transitions, 1728 flow [2022-12-05 18:44:06,817 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 782 places, 846 transitions, 1701 flow [2022-12-05 18:44:06,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:44:06,828 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;@466c7e60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:44:06,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-05 18:44:06,862 INFO L130 PetriNetUnfolder]: 19/396 cut-off events. [2022-12-05 18:44:06,862 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:44:06,862 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:06,863 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 18:44:06,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:44:06,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:06,867 INFO L85 PathProgramCache]: Analyzing trace with hash 49780713, now seen corresponding path program 1 times [2022-12-05 18:44:06,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:06,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152983085] [2022-12-05 18:44:06,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:06,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:07,612 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 18:44:07,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:07,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152983085] [2022-12-05 18:44:07,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152983085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:07,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:07,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:44:07,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22240702] [2022-12-05 18:44:07,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:07,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:44:07,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:07,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:44:07,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:44:07,663 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 786 out of 856 [2022-12-05 18:44:07,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 846 transitions, 1701 flow. Second operand has 9 states, 9 states have (on average 788.1111111111111) internal successors, (7093), 9 states have internal predecessors, (7093), 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 18:44:07,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:07,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 786 of 856 [2022-12-05 18:44:07,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:07,973 INFO L130 PetriNetUnfolder]: 39/808 cut-off events. [2022-12-05 18:44:07,973 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-12-05 18:44:07,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 808 events. 39/808 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1270 event pairs, 0 based on Foata normal form. 20/785 useless extension candidates. Maximal degree in co-relation 656. Up to 12 conditions per place. [2022-12-05 18:44:07,982 INFO L137 encePairwiseOnDemand]: 808/856 looper letters, 18 selfloop transitions, 16 changer transitions 1/808 dead transitions. [2022-12-05 18:44:07,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 791 places, 808 transitions, 1693 flow [2022-12-05 18:44:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:44:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:44:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 12642 transitions. [2022-12-05 18:44:08,013 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9230432242990654 [2022-12-05 18:44:08,015 INFO L175 Difference]: Start difference. First operand has 782 places, 846 transitions, 1701 flow. Second operand 16 states and 12642 transitions. [2022-12-05 18:44:08,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 791 places, 808 transitions, 1693 flow [2022-12-05 18:44:08,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 788 places, 808 transitions, 1688 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:44:08,037 INFO L231 Difference]: Finished difference. Result has 788 places, 807 transitions, 1650 flow [2022-12-05 18:44:08,039 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1620, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=792, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1650, PETRI_PLACES=788, PETRI_TRANSITIONS=807} [2022-12-05 18:44:08,043 INFO L294 CegarLoopForPetriNet]: 782 programPoint places, 6 predicate places. [2022-12-05 18:44:08,043 INFO L495 AbstractCegarLoop]: Abstraction has has 788 places, 807 transitions, 1650 flow [2022-12-05 18:44:08,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 788.1111111111111) internal successors, (7093), 9 states have internal predecessors, (7093), 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 18:44:08,048 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:08,048 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 18:44:08,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:44:08,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:44:08,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:08,050 INFO L85 PathProgramCache]: Analyzing trace with hash 889962922, now seen corresponding path program 1 times [2022-12-05 18:44:08,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:08,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901329396] [2022-12-05 18:44:08,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:08,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:08,714 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 18:44:08,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:08,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901329396] [2022-12-05 18:44:08,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901329396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:08,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:08,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:44:08,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659536795] [2022-12-05 18:44:08,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:08,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:44:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:08,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:44:08,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:44:08,722 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 778 out of 856 [2022-12-05 18:44:08,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 807 transitions, 1650 flow. Second operand has 6 states, 6 states have (on average 782.6666666666666) internal successors, (4696), 6 states have internal predecessors, (4696), 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 18:44:08,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:08,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 778 of 856 [2022-12-05 18:44:08,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:09,033 INFO L130 PetriNetUnfolder]: 68/1192 cut-off events. [2022-12-05 18:44:09,034 INFO L131 PetriNetUnfolder]: For 4/8 co-relation queries the response was YES. [2022-12-05 18:44:09,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 1192 events. 68/1192 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3381 event pairs, 2 based on Foata normal form. 0/1119 useless extension candidates. Maximal degree in co-relation 812. Up to 34 conditions per place. [2022-12-05 18:44:09,043 INFO L137 encePairwiseOnDemand]: 846/856 looper letters, 46 selfloop transitions, 9 changer transitions 0/819 dead transitions. [2022-12-05 18:44:09,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 819 transitions, 1788 flow [2022-12-05 18:44:09,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 18:44:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 18:44:09,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 6280 transitions. [2022-12-05 18:44:09,056 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9170560747663551 [2022-12-05 18:44:09,056 INFO L175 Difference]: Start difference. First operand has 788 places, 807 transitions, 1650 flow. Second operand 8 states and 6280 transitions. [2022-12-05 18:44:09,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 819 transitions, 1788 flow [2022-12-05 18:44:09,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 777 places, 819 transitions, 1756 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-05 18:44:09,068 INFO L231 Difference]: Finished difference. Result has 778 places, 809 transitions, 1653 flow [2022-12-05 18:44:09,069 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1614, PETRI_DIFFERENCE_MINUEND_PLACES=770, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=805, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=796, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1653, PETRI_PLACES=778, PETRI_TRANSITIONS=809} [2022-12-05 18:44:09,070 INFO L294 CegarLoopForPetriNet]: 782 programPoint places, -4 predicate places. [2022-12-05 18:44:09,070 INFO L495 AbstractCegarLoop]: Abstraction has has 778 places, 809 transitions, 1653 flow [2022-12-05 18:44:09,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 782.6666666666666) internal successors, (4696), 6 states have internal predecessors, (4696), 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 18:44:09,073 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:09,073 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] [2022-12-05 18:44:09,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:44:09,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:44:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:09,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2102801257, now seen corresponding path program 1 times [2022-12-05 18:44:09,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:09,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659615272] [2022-12-05 18:44:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:09,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:09,601 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 18:44:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:09,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659615272] [2022-12-05 18:44:09,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659615272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:09,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:09,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:44:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145171450] [2022-12-05 18:44:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:44:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:44:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:44:09,606 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 798 out of 856 [2022-12-05 18:44:09,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 778 places, 809 transitions, 1653 flow. Second operand has 5 states, 5 states have (on average 799.6) internal successors, (3998), 5 states have internal predecessors, (3998), 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 18:44:09,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:09,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 798 of 856 [2022-12-05 18:44:09,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:09,860 INFO L130 PetriNetUnfolder]: 87/1461 cut-off events. [2022-12-05 18:44:09,860 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-12-05 18:44:09,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 1461 events. 87/1461 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3964 event pairs, 0 based on Foata normal form. 0/1366 useless extension candidates. Maximal degree in co-relation 567. Up to 16 conditions per place. [2022-12-05 18:44:09,875 INFO L137 encePairwiseOnDemand]: 849/856 looper letters, 25 selfloop transitions, 6 changer transitions 0/816 dead transitions. [2022-12-05 18:44:09,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 816 transitions, 1733 flow [2022-12-05 18:44:09,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:44:09,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:44:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4819 transitions. [2022-12-05 18:44:09,882 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9382788161993769 [2022-12-05 18:44:09,882 INFO L175 Difference]: Start difference. First operand has 778 places, 809 transitions, 1653 flow. Second operand 6 states and 4819 transitions. [2022-12-05 18:44:09,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 816 transitions, 1733 flow [2022-12-05 18:44:09,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 816 transitions, 1724 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 18:44:09,896 INFO L231 Difference]: Finished difference. Result has 779 places, 810 transitions, 1664 flow [2022-12-05 18:44:09,897 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1644, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=809, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1664, PETRI_PLACES=779, PETRI_TRANSITIONS=810} [2022-12-05 18:44:09,898 INFO L294 CegarLoopForPetriNet]: 782 programPoint places, -3 predicate places. [2022-12-05 18:44:09,898 INFO L495 AbstractCegarLoop]: Abstraction has has 779 places, 810 transitions, 1664 flow [2022-12-05 18:44:09,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 799.6) internal successors, (3998), 5 states have internal predecessors, (3998), 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 18:44:09,901 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:09,902 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] [2022-12-05 18:44:09,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:44:09,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:44:09,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:09,903 INFO L85 PathProgramCache]: Analyzing trace with hash -9878413, now seen corresponding path program 1 times [2022-12-05 18:44:09,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:09,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835605456] [2022-12-05 18:44:09,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:09,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:10,407 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 18:44:10,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:10,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835605456] [2022-12-05 18:44:10,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835605456] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477140977] [2022-12-05 18:44:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:10,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:10,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:10,414 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 18:44:10,455 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 18:44:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:10,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-05 18:44:10,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:10,870 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 18:44:10,897 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 18:44:10,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:10,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477140977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:10,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:10,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-05 18:44:10,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702715449] [2022-12-05 18:44:10,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:10,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:44:10,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:10,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:44:10,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-05 18:44:10,902 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 755 out of 856 [2022-12-05 18:44:10,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 810 transitions, 1664 flow. Second operand has 7 states, 7 states have (on average 760.2857142857143) internal successors, (5322), 7 states have internal predecessors, (5322), 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 18:44:10,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:10,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 755 of 856 [2022-12-05 18:44:10,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:11,761 INFO L130 PetriNetUnfolder]: 771/4278 cut-off events. [2022-12-05 18:44:11,762 INFO L131 PetriNetUnfolder]: For 89/197 co-relation queries the response was YES. [2022-12-05 18:44:11,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5357 conditions, 4278 events. 771/4278 cut-off events. For 89/197 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 28277 event pairs, 135 based on Foata normal form. 0/3929 useless extension candidates. Maximal degree in co-relation 5132. Up to 333 conditions per place. [2022-12-05 18:44:11,795 INFO L137 encePairwiseOnDemand]: 845/856 looper letters, 95 selfloop transitions, 10 changer transitions 0/844 dead transitions. [2022-12-05 18:44:11,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 787 places, 844 transitions, 1951 flow [2022-12-05 18:44:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:44:11,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:44:11,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 8407 transitions. [2022-12-05 18:44:11,808 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8928419711129991 [2022-12-05 18:44:11,808 INFO L175 Difference]: Start difference. First operand has 779 places, 810 transitions, 1664 flow. Second operand 11 states and 8407 transitions. [2022-12-05 18:44:11,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 787 places, 844 transitions, 1951 flow [2022-12-05 18:44:11,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 783 places, 844 transitions, 1941 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 18:44:11,821 INFO L231 Difference]: Finished difference. Result has 783 places, 808 transitions, 1670 flow [2022-12-05 18:44:11,822 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1650, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1670, PETRI_PLACES=783, PETRI_TRANSITIONS=808} [2022-12-05 18:44:11,823 INFO L294 CegarLoopForPetriNet]: 782 programPoint places, 1 predicate places. [2022-12-05 18:44:11,823 INFO L495 AbstractCegarLoop]: Abstraction has has 783 places, 808 transitions, 1670 flow [2022-12-05 18:44:11,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 760.2857142857143) internal successors, (5322), 7 states have internal predecessors, (5322), 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 18:44:11,826 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:11,826 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:11,858 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 18:44:12,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:12,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-05 18:44:12,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:12,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1191577647, now seen corresponding path program 1 times [2022-12-05 18:44:12,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:12,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705726109] [2022-12-05 18:44:12,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:12,495 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 18:44:12,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:12,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705726109] [2022-12-05 18:44:12,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705726109] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:12,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018847275] [2022-12-05 18:44:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:12,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:12,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:12,498 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 18:44:12,528 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 18:44:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:13,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-05 18:44:13,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:13,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-05 18:44:13,128 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 18:44:13,187 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 18:44:13,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:13,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018847275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:13,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:13,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2022-12-05 18:44:13,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054477257] [2022-12-05 18:44:13,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:13,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-05 18:44:13,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:13,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-05 18:44:13,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-05 18:44:13,196 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 737 out of 856 [2022-12-05 18:44:13,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 808 transitions, 1670 flow. Second operand has 11 states, 11 states have (on average 742.4545454545455) internal successors, (8167), 11 states have internal predecessors, (8167), 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 18:44:13,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:13,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 737 of 856 [2022-12-05 18:44:13,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:14,202 INFO L130 PetriNetUnfolder]: 1178/5188 cut-off events. [2022-12-05 18:44:14,202 INFO L131 PetriNetUnfolder]: For 185/237 co-relation queries the response was YES. [2022-12-05 18:44:14,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7135 conditions, 5188 events. 1178/5188 cut-off events. For 185/237 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 42492 event pairs, 390 based on Foata normal form. 0/4812 useless extension candidates. Maximal degree in co-relation 6913. Up to 859 conditions per place. [2022-12-05 18:44:14,224 INFO L137 encePairwiseOnDemand]: 841/856 looper letters, 0 selfloop transitions, 0 changer transitions 906/906 dead transitions. [2022-12-05 18:44:14,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 906 transitions, 2262 flow [2022-12-05 18:44:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 18:44:14,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 18:44:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 14924 transitions. [2022-12-05 18:44:14,241 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8717289719626168 [2022-12-05 18:44:14,241 INFO L175 Difference]: Start difference. First operand has 783 places, 808 transitions, 1670 flow. Second operand 20 states and 14924 transitions. [2022-12-05 18:44:14,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 906 transitions, 2262 flow [2022-12-05 18:44:14,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 790 places, 906 transitions, 2236 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-12-05 18:44:14,250 INFO L231 Difference]: Finished difference. Result has 790 places, 0 transitions, 0 flow [2022-12-05 18:44:14,250 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1646, PETRI_DIFFERENCE_MINUEND_PLACES=771, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=806, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=0, PETRI_PLACES=790, PETRI_TRANSITIONS=0} [2022-12-05 18:44:14,251 INFO L294 CegarLoopForPetriNet]: 782 programPoint places, 8 predicate places. [2022-12-05 18:44:14,251 INFO L495 AbstractCegarLoop]: Abstraction has has 790 places, 0 transitions, 0 flow [2022-12-05 18:44:14,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 742.4545454545455) internal successors, (8167), 11 states have internal predecessors, (8167), 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 18:44:14,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-05 18:44:14,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2022-12-05 18:44:14,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-05 18:44:14,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-05 18:44:14,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-05 18:44:14,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-05 18:44:14,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-05 18:44:14,268 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 18:44:14,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:14,468 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-05 18:44:14,472 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:44:14,472 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:44:14,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:44:14 BasicIcfg [2022-12-05 18:44:14,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:44:14,475 INFO L158 Benchmark]: Toolchain (without parser) took 14876.84ms. Allocated memory was 255.9MB in the beginning and 684.7MB in the end (delta: 428.9MB). Free memory was 221.1MB in the beginning and 224.7MB in the end (delta: -3.6MB). Peak memory consumption was 426.5MB. Max. memory is 8.0GB. [2022-12-05 18:44:14,475 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory was 232.4MB in the beginning and 232.4MB in the end (delta: 75.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:44:14,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5411.15ms. Allocated memory was 255.9MB in the beginning and 352.3MB in the end (delta: 96.5MB). Free memory was 221.0MB in the beginning and 195.8MB in the end (delta: 25.3MB). Peak memory consumption was 182.5MB. Max. memory is 8.0GB. [2022-12-05 18:44:14,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.67ms. Allocated memory is still 352.3MB. Free memory was 195.8MB in the beginning and 289.3MB in the end (delta: -93.5MB). Peak memory consumption was 2.5MB. Max. memory is 8.0GB. [2022-12-05 18:44:14,476 INFO L158 Benchmark]: Boogie Preprocessor took 87.47ms. Allocated memory is still 352.3MB. Free memory was 289.3MB in the beginning and 283.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-05 18:44:14,476 INFO L158 Benchmark]: RCFGBuilder took 1149.50ms. Allocated memory is still 352.3MB. Free memory was 283.5MB in the beginning and 215.9MB in the end (delta: 67.6MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2022-12-05 18:44:14,476 INFO L158 Benchmark]: TraceAbstraction took 8094.19ms. Allocated memory was 352.3MB in the beginning and 684.7MB in the end (delta: 332.4MB). Free memory was 215.3MB in the beginning and 224.7MB in the end (delta: -9.3MB). Peak memory consumption was 323.3MB. Max. memory is 8.0GB. [2022-12-05 18:44:14,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory was 232.4MB in the beginning and 232.4MB in the end (delta: 75.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5411.15ms. Allocated memory was 255.9MB in the beginning and 352.3MB in the end (delta: 96.5MB). Free memory was 221.0MB in the beginning and 195.8MB in the end (delta: 25.3MB). Peak memory consumption was 182.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 122.67ms. Allocated memory is still 352.3MB. Free memory was 195.8MB in the beginning and 289.3MB in the end (delta: -93.5MB). Peak memory consumption was 2.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 87.47ms. Allocated memory is still 352.3MB. Free memory was 289.3MB in the beginning and 283.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1149.50ms. Allocated memory is still 352.3MB. Free memory was 283.5MB in the beginning and 215.9MB in the end (delta: 67.6MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * TraceAbstraction took 8094.19ms. Allocated memory was 352.3MB in the beginning and 684.7MB in the end (delta: 332.4MB). Free memory was 215.3MB in the beginning and 224.7MB in the end (delta: -9.3MB). Peak memory consumption was 323.3MB. 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, 1005 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: 7.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 454 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 454 mSDsluCounter, 1104 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 915 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 836 IncrementalHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 189 mSDtfsCounter, 836 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 679 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1701occurred in iteration=0, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1934 NumberOfCodeBlocks, 1934 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1927 ConstructedInterpolants, 0 QuantifiedInterpolants, 2344 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2113 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 2/4 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 18:44:14,496 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...