/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:53:06,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:53:06,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:53:06,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:53:06,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:53:06,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:53:06,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:53:06,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:53:06,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:53:06,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:53:06,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:53:06,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:53:06,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:53:06,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:53:06,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:53:06,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:53:06,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:53:06,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:53:06,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:53:06,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:53:06,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:53:06,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:53:06,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:53:06,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:53:06,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:53:06,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:53:06,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:53:06,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:53:06,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:53:06,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:53:06,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:53:06,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:53:06,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:53:06,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:53:06,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:53:06,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:53:06,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:53:06,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:53:06,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:53:06,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:53:06,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:53:06,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:53:06,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:53:06,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:53:06,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:53:06,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:53:06,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:53:06,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:53:06,620 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:53:06,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:53:06,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:53:06,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:53:06,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:53:06,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:53:06,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:53:06,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:53:06,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:53:06,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:53:06,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:53:06,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:53:06,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:53:06,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:53:06,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:53:06,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:53:06,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:53:06,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:53:06,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:53:06,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:53:06,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:53:06,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:53:06,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:53:06,623 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:53:06,623 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:53:06,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:53:06,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:53:06,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:53:06,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:53:06,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:53:06,973 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:53:06,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2022-12-06 16:53:08,180 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:53:08,716 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:53:08,716 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2022-12-06 16:53:08,762 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27cefafd5/b6414f2e5e334782adf306d0c5b4d112/FLAGcbb5c7762 [2022-12-06 16:53:08,782 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27cefafd5/b6414f2e5e334782adf306d0c5b4d112 [2022-12-06 16:53:08,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:53:08,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:53:08,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:53:08,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:53:08,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:53:08,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:53:08" (1/1) ... [2022-12-06 16:53:08,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea39c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:08, skipping insertion in model container [2022-12-06 16:53:08,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:53:08" (1/1) ... [2022-12-06 16:53:08,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:53:08,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:53:09,311 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i[5469,5482] [2022-12-06 16:53:09,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:09,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:09,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:09,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:09,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:09,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:09,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:09,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:09,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:09,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:09,686 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:09,687 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:09,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:09,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:09,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:09,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:09,710 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:53:09,716 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:09,721 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:09,731 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:09,852 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:53:09,859 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:53:09,989 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:53:10,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:10,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:10,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:10,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:10,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:10,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:10,343 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:53:10,348 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:53:10,353 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:53:10,496 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:53:10,496 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:53:10,503 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:53:10,503 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:53:10,706 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:53:11,138 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:53:11,151 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:53:11,246 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:53:11,249 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:53:11,485 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:53:11,779 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:53:11,785 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:53:11,953 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:53:12,280 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:53:12,281 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:53:12,281 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:53:13,743 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:53:13,744 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:13,748 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:13,753 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:13,756 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:14,633 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:53:14,633 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:53:14,659 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:53:14,659 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:53:14,661 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:53:14,662 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:53:14,662 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:53:14,662 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:53:14,666 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:53:14,666 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:53:14,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:53:14,705 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:53:14,719 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i[5469,5482] [2022-12-06 16:53:14,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,730 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:53:14,731 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:14,731 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:14,732 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:14,740 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:53:14,741 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:53:14,743 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:53:14,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:14,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:14,770 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:53:14,771 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:53:14,772 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:53:14,776 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:53:14,776 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:53:14,776 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:53:14,776 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:53:14,784 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:53:14,797 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:53:14,799 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:53:14,801 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:53:14,801 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:53:14,808 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:53:14,813 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:53:14,814 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:53:14,818 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:53:14,822 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:53:14,823 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:53:14,823 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:53:14,892 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:53:14,892 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:14,896 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:14,904 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:14,908 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:14,947 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:53:14,948 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:53:14,953 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:53:14,953 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:53:14,954 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:53:14,955 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:53:14,956 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:53:14,956 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:53:14,957 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:53:14,957 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:53:14,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:53:15,463 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:53:15,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15 WrapperNode [2022-12-06 16:53:15,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:53:15,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:53:15,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:53:15,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:53:15,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,692 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 721 [2022-12-06 16:53:15,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:53:15,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:53:15,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:53:15,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:53:15,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,750 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:53:15,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:53:15,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:53:15,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:53:15,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (1/1) ... [2022-12-06 16:53:15,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:53:15,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:53:15,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:53:15,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:53:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:53:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 16:53:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:53:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 16:53:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:53:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-06 16:53:15,841 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-06 16:53:15,841 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-06 16:53:15,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:53:15,843 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:53:16,318 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:53:16,320 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:53:16,957 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:53:16,967 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:53:16,967 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-06 16:53:16,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:53:16 BoogieIcfgContainer [2022-12-06 16:53:16,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:53:16,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:53:16,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:53:16,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:53:16,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:53:08" (1/3) ... [2022-12-06 16:53:16,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce8d703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:53:16, skipping insertion in model container [2022-12-06 16:53:16,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:15" (2/3) ... [2022-12-06 16:53:16,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce8d703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:53:16, skipping insertion in model container [2022-12-06 16:53:16,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:53:16" (3/3) ... [2022-12-06 16:53:16,976 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_get_pc8736x_gpio_set.i [2022-12-06 16:53:16,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:53:16,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 16:53:16,993 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:53:17,077 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:53:17,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 736 places, 792 transitions, 1600 flow [2022-12-06 16:53:17,379 INFO L130 PetriNetUnfolder]: 63/790 cut-off events. [2022-12-06 16:53:17,379 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:53:17,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 790 events. 63/790 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1229 event pairs, 0 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 719. Up to 9 conditions per place. [2022-12-06 16:53:17,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 736 places, 792 transitions, 1600 flow [2022-12-06 16:53:17,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 726 places, 782 transitions, 1573 flow [2022-12-06 16:53:17,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:53:17,426 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;@6a5d2c6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:53:17,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 16:53:17,504 INFO L130 PetriNetUnfolder]: 21/400 cut-off events. [2022-12-06 16:53:17,504 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:53:17,504 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:17,505 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:53:17,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:53:17,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:17,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2059439434, now seen corresponding path program 1 times [2022-12-06 16:53:17,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:17,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082215273] [2022-12-06 16:53:17,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:18,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:18,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082215273] [2022-12-06 16:53:18,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082215273] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:18,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:18,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:53:18,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574070935] [2022-12-06 16:53:18,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:18,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:53:18,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:18,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:53:18,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:53:18,966 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 716 out of 792 [2022-12-06 16:53:18,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 726 places, 782 transitions, 1573 flow. Second operand has 6 states, 6 states have (on average 720.6666666666666) internal successors, (4324), 6 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:18,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:18,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 716 of 792 [2022-12-06 16:53:18,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:19,438 INFO L130 PetriNetUnfolder]: 67/1191 cut-off events. [2022-12-06 16:53:19,438 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-06 16:53:19,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 1191 events. 67/1191 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3292 event pairs, 4 based on Foata normal form. 32/1152 useless extension candidates. Maximal degree in co-relation 1003. Up to 37 conditions per place. [2022-12-06 16:53:19,450 INFO L137 encePairwiseOnDemand]: 753/792 looper letters, 47 selfloop transitions, 9 changer transitions 1/762 dead transitions. [2022-12-06 16:53:19,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 729 places, 762 transitions, 1654 flow [2022-12-06 16:53:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 16:53:19,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 16:53:19,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5833 transitions. [2022-12-06 16:53:19,478 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9206123737373737 [2022-12-06 16:53:19,482 INFO L294 CegarLoopForPetriNet]: 726 programPoint places, 3 predicate places. [2022-12-06 16:53:19,483 INFO L495 AbstractCegarLoop]: Abstraction has has 729 places, 762 transitions, 1654 flow [2022-12-06 16:53:19,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 720.6666666666666) internal successors, (4324), 6 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:19,485 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:19,486 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] [2022-12-06 16:53:19,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:53:19,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:53:19,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:19,488 INFO L85 PathProgramCache]: Analyzing trace with hash 247716807, now seen corresponding path program 1 times [2022-12-06 16:53:19,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:19,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977032312] [2022-12-06 16:53:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:19,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:20,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:20,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:20,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977032312] [2022-12-06 16:53:20,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977032312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:20,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:20,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:53:20,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109046545] [2022-12-06 16:53:20,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:20,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:53:20,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:20,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:53:20,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:53:20,021 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 724 out of 792 [2022-12-06 16:53:20,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 729 places, 762 transitions, 1654 flow. Second operand has 9 states, 9 states have (on average 726.0) internal successors, (6534), 9 states have internal predecessors, (6534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:20,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:20,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 724 of 792 [2022-12-06 16:53:20,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:20,372 INFO L130 PetriNetUnfolder]: 66/1187 cut-off events. [2022-12-06 16:53:20,373 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-06 16:53:20,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 1187 events. 66/1187 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3323 event pairs, 4 based on Foata normal form. 0/1117 useless extension candidates. Maximal degree in co-relation 1038. Up to 36 conditions per place. [2022-12-06 16:53:20,381 INFO L137 encePairwiseOnDemand]: 775/792 looper letters, 26 selfloop transitions, 16 changer transitions 1/758 dead transitions. [2022-12-06 16:53:20,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 741 places, 758 transitions, 1728 flow [2022-12-06 16:53:20,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:53:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:53:20,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 11619 transitions. [2022-12-06 16:53:20,401 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9169034090909091 [2022-12-06 16:53:20,402 INFO L294 CegarLoopForPetriNet]: 726 programPoint places, 15 predicate places. [2022-12-06 16:53:20,403 INFO L495 AbstractCegarLoop]: Abstraction has has 741 places, 758 transitions, 1728 flow [2022-12-06 16:53:20,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 726.0) internal successors, (6534), 9 states have internal predecessors, (6534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:20,410 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:20,411 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:53:20,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:53:20,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:53:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:20,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1314986034, now seen corresponding path program 1 times [2022-12-06 16:53:20,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:20,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681098299] [2022-12-06 16:53:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:20,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:20,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:20,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681098299] [2022-12-06 16:53:20,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681098299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:20,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:20,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 16:53:20,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236812153] [2022-12-06 16:53:20,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:20,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:53:20,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:20,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:53:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:53:20,627 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 749 out of 792 [2022-12-06 16:53:20,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 741 places, 758 transitions, 1728 flow. Second operand has 3 states, 3 states have (on average 751.0) internal successors, (2253), 3 states have internal predecessors, (2253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:20,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:20,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 749 of 792 [2022-12-06 16:53:20,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:20,927 INFO L130 PetriNetUnfolder]: 108/1605 cut-off events. [2022-12-06 16:53:20,927 INFO L131 PetriNetUnfolder]: For 222/236 co-relation queries the response was YES. [2022-12-06 16:53:20,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 1605 events. 108/1605 cut-off events. For 222/236 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6311 event pairs, 18 based on Foata normal form. 0/1501 useless extension candidates. Maximal degree in co-relation 1206. Up to 50 conditions per place. [2022-12-06 16:53:20,937 INFO L137 encePairwiseOnDemand]: 790/792 looper letters, 17 selfloop transitions, 1 changer transitions 1/763 dead transitions. [2022-12-06 16:53:20,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 743 places, 763 transitions, 1802 flow [2022-12-06 16:53:20,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:53:20,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:53:20,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2261 transitions. [2022-12-06 16:53:20,942 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9515993265993266 [2022-12-06 16:53:20,942 INFO L294 CegarLoopForPetriNet]: 726 programPoint places, 17 predicate places. [2022-12-06 16:53:20,943 INFO L495 AbstractCegarLoop]: Abstraction has has 743 places, 763 transitions, 1802 flow [2022-12-06 16:53:20,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 751.0) internal successors, (2253), 3 states have internal predecessors, (2253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:20,944 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:20,944 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:53:20,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:53:20,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:53:20,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:20,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1569101742, now seen corresponding path program 1 times [2022-12-06 16:53:20,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:20,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458323741] [2022-12-06 16:53:20,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:20,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:21,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:21,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458323741] [2022-12-06 16:53:21,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458323741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:21,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:21,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:53:21,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166200652] [2022-12-06 16:53:21,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:21,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:53:21,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:21,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:53:21,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:53:21,528 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 792 [2022-12-06 16:53:21,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 743 places, 763 transitions, 1802 flow. Second operand has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:21,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:21,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 792 [2022-12-06 16:53:21,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:21,925 INFO L130 PetriNetUnfolder]: 150/2092 cut-off events. [2022-12-06 16:53:21,925 INFO L131 PetriNetUnfolder]: For 560/581 co-relation queries the response was YES. [2022-12-06 16:53:21,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2537 conditions, 2092 events. 150/2092 cut-off events. For 560/581 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 8458 event pairs, 27 based on Foata normal form. 0/1948 useless extension candidates. Maximal degree in co-relation 1489. Up to 67 conditions per place. [2022-12-06 16:53:21,942 INFO L137 encePairwiseOnDemand]: 785/792 looper letters, 34 selfloop transitions, 6 changer transitions 1/772 dead transitions. [2022-12-06 16:53:21,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 748 places, 772 transitions, 1949 flow [2022-12-06 16:53:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:53:21,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:53:21,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4447 transitions. [2022-12-06 16:53:21,950 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9358164983164983 [2022-12-06 16:53:21,952 INFO L294 CegarLoopForPetriNet]: 726 programPoint places, 22 predicate places. [2022-12-06 16:53:21,952 INFO L495 AbstractCegarLoop]: Abstraction has has 748 places, 772 transitions, 1949 flow [2022-12-06 16:53:21,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 737.4) internal successors, (3687), 5 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:21,954 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:21,954 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:53:21,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:53:21,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:53:21,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:21,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1943554435, now seen corresponding path program 1 times [2022-12-06 16:53:21,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:21,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284657491] [2022-12-06 16:53:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:21,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:22,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:22,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:22,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284657491] [2022-12-06 16:53:22,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284657491] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:53:22,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828009735] [2022-12-06 16:53:22,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:22,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:53:22,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:53:22,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:53:22,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 16:53:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:23,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-06 16:53:23,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:53:23,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:23,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:53:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:23,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828009735] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:53:23,672 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:53:23,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2022-12-06 16:53:23,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768574741] [2022-12-06 16:53:23,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:53:23,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:53:23,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:23,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:53:23,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:53:23,683 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 736 out of 792 [2022-12-06 16:53:23,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 748 places, 772 transitions, 1949 flow. Second operand has 13 states, 13 states have (on average 738.0769230769231) internal successors, (9595), 13 states have internal predecessors, (9595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:23,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:23,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 736 of 792 [2022-12-06 16:53:23,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:24,469 INFO L130 PetriNetUnfolder]: 150/2113 cut-off events. [2022-12-06 16:53:24,470 INFO L131 PetriNetUnfolder]: For 863/884 co-relation queries the response was YES. [2022-12-06 16:53:24,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2656 conditions, 2113 events. 150/2113 cut-off events. For 863/884 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 8507 event pairs, 27 based on Foata normal form. 0/1969 useless extension candidates. Maximal degree in co-relation 1568. Up to 67 conditions per place. [2022-12-06 16:53:24,484 INFO L137 encePairwiseOnDemand]: 779/792 looper letters, 36 selfloop transitions, 18 changer transitions 1/786 dead transitions. [2022-12-06 16:53:24,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 762 places, 786 transitions, 2121 flow [2022-12-06 16:53:24,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 16:53:24,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 16:53:24,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 11089 transitions. [2022-12-06 16:53:24,505 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9334175084175084 [2022-12-06 16:53:24,508 INFO L294 CegarLoopForPetriNet]: 726 programPoint places, 36 predicate places. [2022-12-06 16:53:24,508 INFO L495 AbstractCegarLoop]: Abstraction has has 762 places, 786 transitions, 2121 flow [2022-12-06 16:53:24,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 738.0769230769231) internal successors, (9595), 13 states have internal predecessors, (9595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:24,513 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:24,514 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] [2022-12-06 16:53:24,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 16:53:24,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:53:24,733 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:53:24,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:24,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2054894062, now seen corresponding path program 2 times [2022-12-06 16:53:24,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:24,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917524270] [2022-12-06 16:53:24,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:24,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:25,546 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:25,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:25,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917524270] [2022-12-06 16:53:25,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917524270] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:53:25,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216732269] [2022-12-06 16:53:25,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:53:25,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:53:25,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:53:25,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:53:25,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 16:53:26,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 16:53:26,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:53:26,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-06 16:53:26,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:53:26,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:53:26,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:53:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-06 16:53:26,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:53:26,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216732269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:26,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:53:26,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-12-06 16:53:26,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505261463] [2022-12-06 16:53:26,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:26,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:53:26,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:53:26,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:53:26,322 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 792 [2022-12-06 16:53:26,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 762 places, 786 transitions, 2121 flow. Second operand has 7 states, 7 states have (on average 704.1428571428571) internal successors, (4929), 7 states have internal predecessors, (4929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:26,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:26,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 792 [2022-12-06 16:53:26,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:28,904 INFO L130 PetriNetUnfolder]: 1734/10605 cut-off events. [2022-12-06 16:53:28,906 INFO L131 PetriNetUnfolder]: For 5071/5077 co-relation queries the response was YES. [2022-12-06 16:53:28,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15035 conditions, 10605 events. 1734/10605 cut-off events. For 5071/5077 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 90427 event pairs, 619 based on Foata normal form. 2/9686 useless extension candidates. Maximal degree in co-relation 5149. Up to 839 conditions per place. [2022-12-06 16:53:28,965 INFO L137 encePairwiseOnDemand]: 784/792 looper letters, 77 selfloop transitions, 5 changer transitions 120/903 dead transitions. [2022-12-06 16:53:28,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 773 places, 903 transitions, 3717 flow [2022-12-06 16:53:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:53:28,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:53:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8490 transitions. [2022-12-06 16:53:28,982 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8933080808080808 [2022-12-06 16:53:28,985 INFO L294 CegarLoopForPetriNet]: 726 programPoint places, 47 predicate places. [2022-12-06 16:53:28,985 INFO L495 AbstractCegarLoop]: Abstraction has has 773 places, 903 transitions, 3717 flow [2022-12-06 16:53:28,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 704.1428571428571) internal successors, (4929), 7 states have internal predecessors, (4929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:28,996 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:28,996 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] [2022-12-06 16:53:29,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 16:53:29,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-06 16:53:29,206 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:53:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:29,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1860490758, now seen corresponding path program 1 times [2022-12-06 16:53:29,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:29,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144715916] [2022-12-06 16:53:29,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:29,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:29,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:29,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144715916] [2022-12-06 16:53:29,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144715916] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:53:29,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093016943] [2022-12-06 16:53:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:29,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:53:29,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:53:29,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:53:29,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 16:53:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:30,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 99 conjunts are in the unsatisfiable core [2022-12-06 16:53:30,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:53:31,031 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:31,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-06 16:53:31,089 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,138 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:31,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:31,189 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,250 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,302 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,356 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,408 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,458 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,506 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,559 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,629 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,680 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:31,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:31,800 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-06 16:53:31,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 42 [2022-12-06 16:53:31,869 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:31,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:31,910 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:31,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:31,956 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:31,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:32,003 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:32,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:32,051 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:32,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:32,090 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:32,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:32,125 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:32,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:32,226 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:53:32,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-12-06 16:53:32,360 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-06 16:53:32,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-06 16:53:33,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:53:33,062 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-06 16:53:33,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-06 16:53:33,124 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-12-06 16:53:33,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2022-12-06 16:53:33,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:53:33,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:53:33,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:53:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-06 16:53:33,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:53:33,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093016943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:33,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:53:33,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [10] total 23 [2022-12-06 16:53:33,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528550010] [2022-12-06 16:53:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:33,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:53:33,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:53:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2022-12-06 16:53:33,533 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 792 [2022-12-06 16:53:33,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 773 places, 903 transitions, 3717 flow. Second operand has 15 states, 15 states have (on average 650.8666666666667) internal successors, (9763), 15 states have internal predecessors, (9763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:33,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:33,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 792 [2022-12-06 16:53:33,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:36,003 INFO L130 PetriNetUnfolder]: 1648/9975 cut-off events. [2022-12-06 16:53:36,004 INFO L131 PetriNetUnfolder]: For 6076/8034 co-relation queries the response was YES. [2022-12-06 16:53:36,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16609 conditions, 9975 events. 1648/9975 cut-off events. For 6076/8034 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 83090 event pairs, 425 based on Foata normal form. 42/9196 useless extension candidates. Maximal degree in co-relation 5299. Up to 839 conditions per place. [2022-12-06 16:53:36,056 INFO L137 encePairwiseOnDemand]: 778/792 looper letters, 0 selfloop transitions, 0 changer transitions 941/941 dead transitions. [2022-12-06 16:53:36,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 941 transitions, 4837 flow [2022-12-06 16:53:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:53:36,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:53:36,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 8518 transitions. [2022-12-06 16:53:36,185 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8273115773115773 [2022-12-06 16:53:36,185 INFO L294 CegarLoopForPetriNet]: 726 programPoint places, 57 predicate places. [2022-12-06 16:53:36,185 INFO L495 AbstractCegarLoop]: Abstraction has has 783 places, 941 transitions, 4837 flow [2022-12-06 16:53:36,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 650.8666666666667) internal successors, (9763), 15 states have internal predecessors, (9763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:36,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 16:53:36,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 16:53:36,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 16:53:36,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-06 16:53:36,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-06 16:53:36,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 16:53:36,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:53:36,402 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-06 16:53:36,407 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:53:36,407 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:53:36,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:53:36 BasicIcfg [2022-12-06 16:53:36,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:53:36,412 INFO L158 Benchmark]: Toolchain (without parser) took 27626.84ms. Allocated memory was 180.4MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 146.2MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 897.2MB. Max. memory is 8.0GB. [2022-12-06 16:53:36,412 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory was 157.2MB in the beginning and 157.1MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:53:36,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6674.72ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 145.7MB in the beginning and 132.8MB in the end (delta: 12.9MB). Peak memory consumption was 134.9MB. Max. memory is 8.0GB. [2022-12-06 16:53:36,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 228.33ms. Allocated memory is still 272.6MB. Free memory was 132.8MB in the beginning and 214.8MB in the end (delta: -82.0MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. [2022-12-06 16:53:36,415 INFO L158 Benchmark]: Boogie Preprocessor took 68.67ms. Allocated memory is still 272.6MB. Free memory was 214.8MB in the beginning and 209.1MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-12-06 16:53:36,415 INFO L158 Benchmark]: RCFGBuilder took 1206.58ms. Allocated memory is still 272.6MB. Free memory was 209.1MB in the beginning and 145.6MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2022-12-06 16:53:36,416 INFO L158 Benchmark]: TraceAbstraction took 19439.97ms. Allocated memory was 272.6MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 145.1MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 802.2MB. Max. memory is 8.0GB. [2022-12-06 16:53:36,418 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 180.4MB. Free memory was 157.2MB in the beginning and 157.1MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 6674.72ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 145.7MB in the beginning and 132.8MB in the end (delta: 12.9MB). Peak memory consumption was 134.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 228.33ms. Allocated memory is still 272.6MB. Free memory was 132.8MB in the beginning and 214.8MB in the end (delta: -82.0MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 68.67ms. Allocated memory is still 272.6MB. Free memory was 214.8MB in the beginning and 209.1MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1206.58ms. Allocated memory is still 272.6MB. Free memory was 209.1MB in the beginning and 145.6MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 19439.97ms. Allocated memory was 272.6MB in the beginning and 1.8GB in the end (delta: 1.5GB). Free memory was 145.1MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 802.2MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 893 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.3s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 629 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 629 mSDsluCounter, 897 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 710 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1121 IncrementalHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 187 mSDtfsCounter, 1121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1356 GetRequests, 1249 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4837occurred in iteration=7, InterpolantAutomatonStates: 73, 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: 0.3s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 3029 NumberOfCodeBlocks, 3001 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3322 ConstructedInterpolants, 4 QuantifiedInterpolants, 8062 SizeOfPredicates, 46 NumberOfNonLiveVariables, 3195 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 92/187 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:53:36,445 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...