/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 14:51:44,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:51:44,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:51:44,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:51:44,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:51:44,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:51:44,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:51:44,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:51:44,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:51:44,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:51:44,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:51:44,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:51:44,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:51:44,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:51:44,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:51:44,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:51:44,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:51:44,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:51:44,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:51:44,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:51:44,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:51:44,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:51:44,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:51:44,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:51:44,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:51:44,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:51:44,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:51:44,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:51:44,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:51:44,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:51:44,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:51:44,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:51:44,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:51:44,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:51:44,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:51:44,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:51:44,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:51:44,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:51:44,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:51:44,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:51:44,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:51:44,668 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-SemanticLbe.epf [2022-12-12 14:51:44,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:51:44,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:51:44,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:51:44,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:51:44,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:51:44,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:51:44,699 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:51:44,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:51:44,699 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:51:44,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:51:44,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:51:44,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:51:44,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:51:44,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:51:44,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:51:44,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:51:44,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:51:44,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:51:44,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:51:44,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:51:44,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:51:44,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:51:44,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:51:44,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:51:44,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:51:44,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:51:44,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:51:44,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:51:44,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:51:44,702 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:51:44,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:51:44,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:51:44,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:51:45,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:51:45,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:51:45,001 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:51:45,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2022-12-12 14:51:45,864 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:51:46,270 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:51:46,270 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2022-12-12 14:51:46,333 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0397d973e/6ccf1bfe856e4d0b8643db5a070bdc3d/FLAG9f1c1e84f [2022-12-12 14:51:46,435 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0397d973e/6ccf1bfe856e4d0b8643db5a070bdc3d [2022-12-12 14:51:46,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:51:46,438 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:51:46,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:51:46,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:51:46,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:51:46,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:51:46" (1/1) ... [2022-12-12 14:51:46,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36889a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:46, skipping insertion in model container [2022-12-12 14:51:46,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:51:46" (1/1) ... [2022-12-12 14:51:46,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:51:46,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:51:46,782 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_current_pc8736x_gpio_set.i[5469,5482] [2022-12-12 14:51:46,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:46,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,039 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 14:51:47,044 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:51:47,048 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:51:47,057 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:51:47,171 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:51:47,177 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:51:47,305 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 14:51:47,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:47,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:47,619 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 14:51:47,624 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 14:51:47,628 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 14:51:47,745 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 14:51:47,745 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:51:47,750 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 14:51:47,750 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:51:47,935 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 14:51:48,435 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:51:48,443 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:51:48,504 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 14:51:48,507 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 14:51:48,818 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 14:51:49,050 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 14:51:49,055 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 14:51:49,283 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 14:51:49,465 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 14:51:49,466 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 14:51:49,466 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 14:51:50,551 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 14:51:50,551 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:51:50,553 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:51:50,556 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:51:50,558 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:51:51,042 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-12 14:51:51,043 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-12 14:51:51,077 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-12 14:51:51,078 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-12 14:51:51,079 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-12 14:51:51,080 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-12 14:51:51,080 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-12 14:51:51,080 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-12 14:51:51,085 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-12 14:51:51,086 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-12 14:51:51,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:51:51,143 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:51:51,164 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_current_pc8736x_gpio_set.i[5469,5482] [2022-12-12 14:51:51,176 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,176 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,200 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,203 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 14:51:51,203 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:51:51,203 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:51:51,203 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:51:51,206 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:51:51,206 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:51:51,216 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 14:51:51,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:51:51,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:51:51,227 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 14:51:51,240 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 14:51:51,241 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 14:51:51,243 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 14:51:51,243 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:51:51,243 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 14:51:51,243 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:51:51,248 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 14:51:51,255 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:51:51,256 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:51:51,257 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 14:51:51,257 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 14:51:51,261 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 14:51:51,264 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 14:51:51,264 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 14:51:51,266 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 14:51:51,268 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 14:51:51,268 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 14:51:51,269 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 14:51:51,301 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 14:51:51,302 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:51:51,303 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:51:51,304 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:51:51,319 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:51:51,343 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-12 14:51:51,344 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-12 14:51:51,347 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-12 14:51:51,347 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-12 14:51:51,348 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-12 14:51:51,348 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-12 14:51:51,348 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-12 14:51:51,349 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-12 14:51:51,349 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-12 14:51:51,349 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-12 14:51:51,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:51:51,743 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:51:51,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51 WrapperNode [2022-12-12 14:51:51,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:51:51,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:51:51,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:51:51,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:51:51,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,891 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 725 [2022-12-12 14:51:51,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:51:51,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:51:51,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:51:51,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:51:51,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:51:51,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:51:51,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:51:51,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:51:51,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (1/1) ... [2022-12-12 14:51:51,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:51:51,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:51:51,997 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) [2022-12-12 14:51:52,076 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 [2022-12-12 14:51:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 14:51:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 14:51:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:51:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-12 14:51:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-12 14:51:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-12 14:51:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:51:52,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:51:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-12 14:51:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:51:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-12 14:51:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:51:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:51:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-12 14:51:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-12 14:51:52,105 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-12 14:51:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:51:52,106 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:51:52,533 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:51:52,534 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:51:53,109 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:51:53,117 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:51:53,117 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2022-12-12 14:51:53,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:51:53 BoogieIcfgContainer [2022-12-12 14:51:53,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:51:53,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:51:53,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:51:53,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:51:53,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:51:46" (1/3) ... [2022-12-12 14:51:53,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad3da6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:51:53, skipping insertion in model container [2022-12-12 14:51:53,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:51:51" (2/3) ... [2022-12-12 14:51:53,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad3da6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:51:53, skipping insertion in model container [2022-12-12 14:51:53,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:51:53" (3/3) ... [2022-12-12 14:51:53,124 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2022-12-12 14:51:53,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:51:53,136 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-12 14:51:53,136 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:51:53,206 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 14:51:53,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 741 places, 798 transitions, 1612 flow [2022-12-12 14:51:53,453 INFO L130 PetriNetUnfolder]: 64/796 cut-off events. [2022-12-12 14:51:53,453 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 14:51:53,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 796 events. 64/796 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1260 event pairs, 0 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 719. Up to 9 conditions per place. [2022-12-12 14:51:53,460 INFO L82 GeneralOperation]: Start removeDead. Operand has 741 places, 798 transitions, 1612 flow [2022-12-12 14:51:53,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 731 places, 788 transitions, 1585 flow [2022-12-12 14:51:53,469 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:51:53,479 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 731 places, 788 transitions, 1585 flow [2022-12-12 14:51:53,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 731 places, 788 transitions, 1585 flow [2022-12-12 14:51:53,652 INFO L130 PetriNetUnfolder]: 64/788 cut-off events. [2022-12-12 14:51:53,652 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 14:51:53,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 788 events. 64/788 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1199 event pairs, 0 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 719. Up to 9 conditions per place. [2022-12-12 14:51:53,666 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 731 places, 788 transitions, 1585 flow [2022-12-12 14:51:53,666 INFO L226 LiptonReduction]: Number of co-enabled transitions 19018 [2022-12-12 14:52:56,801 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 441 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:53:02,124 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 441 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:56:01,223 WARN L233 SmtUtils]: Spent 2.71m on a formula simplification. DAG size of input: 659 DAG size of output: 657 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:56:35,976 WARN L233 SmtUtils]: Spent 34.73s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 14:59:04,062 WARN L233 SmtUtils]: Spent 2.47m on a formula simplification. DAG size of input: 659 DAG size of output: 657 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 15:00:12,048 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 581 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-12 15:01:16,817 INFO L241 LiptonReduction]: Total number of compositions: 730 [2022-12-12 15:01:16,834 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:01:16,838 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;@5ba9d79c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:01:16,839 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 15:01:16,847 INFO L130 PetriNetUnfolder]: 5/11 cut-off events. [2022-12-12 15:01:16,847 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:16,847 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:16,847 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 15:01:16,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:01:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash 3144302, now seen corresponding path program 1 times [2022-12-12 15:01:16,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:16,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460779992] [2022-12-12 15:01:16,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:16,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:17,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:17,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460779992] [2022-12-12 15:01:17,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460779992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:17,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:01:17,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 15:01:17,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897844446] [2022-12-12 15:01:17,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:17,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 15:01:17,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 15:01:17,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 15:01:17,285 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 214 [2022-12-12 15:01:17,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 214 transitions, 437 flow. Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-12-12 15:01:17,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:17,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 214 [2022-12-12 15:01:17,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:20,935 INFO L130 PetriNetUnfolder]: 28238/46586 cut-off events. [2022-12-12 15:01:20,935 INFO L131 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2022-12-12 15:01:20,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92580 conditions, 46586 events. 28238/46586 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 3774. Compared 404082 event pairs, 28228 based on Foata normal form. 0/8916 useless extension candidates. Maximal degree in co-relation 91992. Up to 45727 conditions per place. [2022-12-12 15:01:21,017 INFO L137 encePairwiseOnDemand]: 197/214 looper letters, 188 selfloop transitions, 0 changer transitions 0/197 dead transitions. [2022-12-12 15:01:21,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 197 transitions, 779 flow [2022-12-12 15:01:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 15:01:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 15:01:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 223 transitions. [2022-12-12 15:01:21,029 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5210280373831776 [2022-12-12 15:01:21,030 INFO L175 Difference]: Start difference. First operand has 198 places, 214 transitions, 437 flow. Second operand 2 states and 223 transitions. [2022-12-12 15:01:21,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 197 transitions, 779 flow [2022-12-12 15:01:21,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 197 transitions, 774 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 15:01:21,064 INFO L231 Difference]: Finished difference. Result has 192 places, 197 transitions, 398 flow [2022-12-12 15:01:21,065 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=398, PETRI_PLACES=192, PETRI_TRANSITIONS=197} [2022-12-12 15:01:21,070 INFO L295 CegarLoopForPetriNet]: 198 programPoint places, -6 predicate places. [2022-12-12 15:01:21,070 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 197 transitions, 398 flow [2022-12-12 15:01:21,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2022-12-12 15:01:21,070 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:21,071 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:01:21,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:01:21,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:01:21,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:21,077 INFO L85 PathProgramCache]: Analyzing trace with hash -578833000, now seen corresponding path program 1 times [2022-12-12 15:01:21,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:21,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836328619] [2022-12-12 15:01:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:21,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:21,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:21,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836328619] [2022-12-12 15:01:21,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836328619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:21,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:01:21,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 15:01:21,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992444649] [2022-12-12 15:01:21,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:21,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 15:01:21,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:21,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 15:01:21,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 15:01:21,658 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 214 [2022-12-12 15:01:21,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 197 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-12-12 15:01:21,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:21,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 214 [2022-12-12 15:01:21,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:25,285 INFO L130 PetriNetUnfolder]: 28238/46587 cut-off events. [2022-12-12 15:01:25,285 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:25,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92526 conditions, 46587 events. 28238/46587 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3870. Compared 404272 event pairs, 28228 based on Foata normal form. 0/8917 useless extension candidates. Maximal degree in co-relation 92523. Up to 45727 conditions per place. [2022-12-12 15:01:25,356 INFO L137 encePairwiseOnDemand]: 210/214 looper letters, 187 selfloop transitions, 2 changer transitions 0/198 dead transitions. [2022-12-12 15:01:25,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 198 transitions, 778 flow [2022-12-12 15:01:25,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 15:01:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 15:01:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2022-12-12 15:01:25,357 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3395638629283489 [2022-12-12 15:01:25,357 INFO L175 Difference]: Start difference. First operand has 192 places, 197 transitions, 398 flow. Second operand 3 states and 218 transitions. [2022-12-12 15:01:25,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 198 transitions, 778 flow [2022-12-12 15:01:25,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 198 transitions, 778 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-12 15:01:25,367 INFO L231 Difference]: Finished difference. Result has 195 places, 198 transitions, 412 flow [2022-12-12 15:01:25,367 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=195, PETRI_TRANSITIONS=198} [2022-12-12 15:01:25,368 INFO L295 CegarLoopForPetriNet]: 198 programPoint places, -3 predicate places. [2022-12-12 15:01:25,368 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 198 transitions, 412 flow [2022-12-12 15:01:25,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-12-12 15:01:25,369 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:25,369 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:01:25,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 15:01:25,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:01:25,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:25,369 INFO L85 PathProgramCache]: Analyzing trace with hash 379003992, now seen corresponding path program 1 times [2022-12-12 15:01:25,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:25,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645365006] [2022-12-12 15:01:25,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:25,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:26,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:26,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645365006] [2022-12-12 15:01:26,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645365006] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:01:26,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986619043] [2022-12-12 15:01:26,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:26,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:01:26,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:01:26,084 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) [2022-12-12 15:01:26,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 15:01:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:26,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-12 15:01:26,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:01:26,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 15:01:26,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 15:01:26,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986619043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:26,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 15:01:26,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-12-12 15:01:26,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688931499] [2022-12-12 15:01:26,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:26,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 15:01:26,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:26,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 15:01:26,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:01:26,526 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 214 [2022-12-12 15:01:26,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 198 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-12 15:01:26,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:26,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 214 [2022-12-12 15:01:26,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:30,185 INFO L130 PetriNetUnfolder]: 29081/47861 cut-off events. [2022-12-12 15:01:30,186 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-12-12 15:01:30,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95277 conditions, 47861 events. 29081/47861 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 3850. Compared 413708 event pairs, 14069 based on Foata normal form. 0/9345 useless extension candidates. Maximal degree in co-relation 95272. Up to 24351 conditions per place. [2022-12-12 15:01:30,269 INFO L137 encePairwiseOnDemand]: 209/214 looper letters, 133 selfloop transitions, 3 changer transitions 189/332 dead transitions. [2022-12-12 15:01:30,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 332 transitions, 1331 flow [2022-12-12 15:01:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 15:01:30,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 15:01:30,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2022-12-12 15:01:30,272 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5404984423676013 [2022-12-12 15:01:30,272 INFO L175 Difference]: Start difference. First operand has 195 places, 198 transitions, 412 flow. Second operand 3 states and 347 transitions. [2022-12-12 15:01:30,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 332 transitions, 1331 flow [2022-12-12 15:01:30,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 332 transitions, 1327 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-12 15:01:30,277 INFO L231 Difference]: Finished difference. Result has 197 places, 109 transitions, 245 flow [2022-12-12 15:01:30,277 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=197, PETRI_TRANSITIONS=109} [2022-12-12 15:01:30,278 INFO L295 CegarLoopForPetriNet]: 198 programPoint places, -1 predicate places. [2022-12-12 15:01:30,278 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 109 transitions, 245 flow [2022-12-12 15:01:30,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-12-12 15:01:30,278 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:30,278 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:01:30,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 15:01:30,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:01:30,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:01:30,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:30,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1169163087, now seen corresponding path program 1 times [2022-12-12 15:01:30,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:30,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632526578] [2022-12-12 15:01:30,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:30,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:31,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632526578] [2022-12-12 15:01:31,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632526578] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:01:31,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460209220] [2022-12-12 15:01:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:31,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:01:31,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:01:31,140 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) [2022-12-12 15:01:31,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 15:01:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:32,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-12 15:01:32,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:01:32,057 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 9 treesize of output 3 [2022-12-12 15:01:32,170 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-12 15:01:32,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2022-12-12 15:01:32,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 15:01:32,204 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 [2022-12-12 15:01:32,220 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 [2022-12-12 15:01:32,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 15:01:32,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 15:01:32,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460209220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:32,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 15:01:32,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2022-12-12 15:01:32,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153908649] [2022-12-12 15:01:32,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:32,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:01:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:32,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:01:32,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-12 15:01:32,233 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 214 [2022-12-12 15:01:32,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 109 transitions, 245 flow. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-12 15:01:32,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:32,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 214 [2022-12-12 15:01:32,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:34,632 INFO L130 PetriNetUnfolder]: 9487/15692 cut-off events. [2022-12-12 15:01:34,633 INFO L131 PetriNetUnfolder]: For 343/343 co-relation queries the response was YES. [2022-12-12 15:01:34,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31735 conditions, 15692 events. 9487/15692 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 1496. Compared 120334 event pairs, 4295 based on Foata normal form. 0/4823 useless extension candidates. Maximal degree in co-relation 31729. Up to 5512 conditions per place. [2022-12-12 15:01:34,668 INFO L137 encePairwiseOnDemand]: 205/214 looper letters, 102 selfloop transitions, 8 changer transitions 241/356 dead transitions. [2022-12-12 15:01:34,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 356 transitions, 1476 flow [2022-12-12 15:01:34,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 15:01:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 15:01:34,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2022-12-12 15:01:34,670 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.30218068535825543 [2022-12-12 15:01:34,670 INFO L175 Difference]: Start difference. First operand has 197 places, 109 transitions, 245 flow. Second operand 6 states and 388 transitions. [2022-12-12 15:01:34,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 356 transitions, 1476 flow [2022-12-12 15:01:34,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 356 transitions, 1465 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 15:01:34,675 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 269 flow [2022-12-12 15:01:34,676 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=269, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2022-12-12 15:01:34,676 INFO L295 CegarLoopForPetriNet]: 198 programPoint places, -84 predicate places. [2022-12-12 15:01:34,676 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 269 flow [2022-12-12 15:01:34,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-12 15:01:34,676 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:34,676 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:01:34,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-12 15:01:34,885 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,SelfDestructingSolverStorable3 [2022-12-12 15:01:34,885 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:01:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:34,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1883880050, now seen corresponding path program 1 times [2022-12-12 15:01:34,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:34,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646741869] [2022-12-12 15:01:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:34,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:35,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:35,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646741869] [2022-12-12 15:01:35,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646741869] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:01:35,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570985567] [2022-12-12 15:01:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:35,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:01:35,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:01:35,355 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) [2022-12-12 15:01:35,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 15:01:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:36,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 288 conjunts are in the unsatisfiable core [2022-12-12 15:01:36,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:01:36,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 15:01:36,812 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-12-12 15:01:43,331 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 1276 DAG size of output: 275 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-12 15:01:43,336 INFO L321 Elim1Store]: treesize reduction 9056, result has 6.2 percent of original size [2022-12-12 15:01:43,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 96 case distinctions, treesize of input 557 treesize of output 1059 [2022-12-12 15:02:10,661 INFO L321 Elim1Store]: treesize reduction 136, result has 29.2 percent of original size [2022-12-12 15:02:10,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 354 treesize of output 384 [2022-12-12 15:02:10,694 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-12 15:02:10,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 293 treesize of output 292 [2022-12-12 15:02:10,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 281 treesize of output 281 [2022-12-12 15:02:10,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 275 treesize of output 275 [2022-12-12 15:02:10,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 269 treesize of output 269 [2022-12-12 15:02:10,799 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2022-12-12 15:02:10,815 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 15:02:10,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 41 [2022-12-12 15:02:10,936 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 [2022-12-12 15:02:10,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2022-12-12 15:02:10,982 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 [2022-12-12 15:02:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 15:02:11,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 15:02:11,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570985567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:02:11,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 15:02:11,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 9 [2022-12-12 15:02:11,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706346903] [2022-12-12 15:02:11,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:02:11,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 15:02:11,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:02:11,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 15:02:11,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-12 15:02:11,005 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 214 [2022-12-12 15:02:11,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 269 flow. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2022-12-12 15:02:11,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:02:11,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 214 [2022-12-12 15:02:11,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:02:13,541 INFO L130 PetriNetUnfolder]: 6805/11802 cut-off events. [2022-12-12 15:02:13,541 INFO L131 PetriNetUnfolder]: For 945/945 co-relation queries the response was YES. [2022-12-12 15:02:13,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26253 conditions, 11802 events. 6805/11802 cut-off events. For 945/945 co-relation queries the response was YES. Maximal size of possible extension queue 1108. Compared 93645 event pairs, 1956 based on Foata normal form. 157/4529 useless extension candidates. Maximal degree in co-relation 26244. Up to 5245 conditions per place. [2022-12-12 15:02:13,570 INFO L137 encePairwiseOnDemand]: 199/214 looper letters, 42 selfloop transitions, 14 changer transitions 208/268 dead transitions. [2022-12-12 15:02:13,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 268 transitions, 1141 flow [2022-12-12 15:02:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 15:02:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 15:02:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 303 transitions. [2022-12-12 15:02:13,572 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.20226969292389854 [2022-12-12 15:02:13,572 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 269 flow. Second operand 7 states and 303 transitions. [2022-12-12 15:02:13,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 268 transitions, 1141 flow [2022-12-12 15:02:13,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 268 transitions, 1136 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 15:02:13,587 INFO L231 Difference]: Finished difference. Result has 110 places, 50 transitions, 168 flow [2022-12-12 15:02:13,587 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=168, PETRI_PLACES=110, PETRI_TRANSITIONS=50} [2022-12-12 15:02:13,587 INFO L295 CegarLoopForPetriNet]: 198 programPoint places, -88 predicate places. [2022-12-12 15:02:13,587 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 50 transitions, 168 flow [2022-12-12 15:02:13,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2022-12-12 15:02:13,588 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:02:13,588 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:02:13,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-12 15:02:13,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:02:13,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:02:13,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:02:13,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1988280372, now seen corresponding path program 1 times [2022-12-12 15:02:13,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:02:13,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820425122] [2022-12-12 15:02:13,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:02:13,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:02:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:02:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:02:14,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:02:14,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820425122] [2022-12-12 15:02:14,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820425122] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:02:14,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011981404] [2022-12-12 15:02:14,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:02:14,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:02:14,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:02:14,525 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:02:14,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-12 15:02:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:02:15,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-12 15:02:15,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:02:15,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:02:15,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:02:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:02:15,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011981404] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 15:02:15,657 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 15:02:15,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-12-12 15:02:15,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710279971] [2022-12-12 15:02:15,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 15:02:15,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 15:02:15,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:02:15,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 15:02:15,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-12-12 15:02:15,658 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 214 [2022-12-12 15:02:15,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 50 transitions, 168 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2022-12-12 15:02:15,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:02:15,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 214 [2022-12-12 15:02:15,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:02:16,077 INFO L130 PetriNetUnfolder]: 105/230 cut-off events. [2022-12-12 15:02:16,077 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-12-12 15:02:16,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 230 events. 105/230 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 822 event pairs, 95 based on Foata normal form. 3/169 useless extension candidates. Maximal degree in co-relation 608. Up to 207 conditions per place. [2022-12-12 15:02:16,078 INFO L137 encePairwiseOnDemand]: 206/214 looper letters, 37 selfloop transitions, 12 changer transitions 0/55 dead transitions. [2022-12-12 15:02:16,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 55 transitions, 282 flow [2022-12-12 15:02:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 15:02:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 15:02:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2022-12-12 15:02:16,080 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.0814419225634179 [2022-12-12 15:02:16,080 INFO L175 Difference]: Start difference. First operand has 110 places, 50 transitions, 168 flow. Second operand 7 states and 122 transitions. [2022-12-12 15:02:16,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 55 transitions, 282 flow [2022-12-12 15:02:16,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 55 transitions, 232 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-12-12 15:02:16,081 INFO L231 Difference]: Finished difference. Result has 55 places, 55 transitions, 162 flow [2022-12-12 15:02:16,081 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=162, PETRI_PLACES=55, PETRI_TRANSITIONS=55} [2022-12-12 15:02:16,082 INFO L295 CegarLoopForPetriNet]: 198 programPoint places, -143 predicate places. [2022-12-12 15:02:16,082 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 55 transitions, 162 flow [2022-12-12 15:02:16,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2022-12-12 15:02:16,082 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:02:16,082 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:02:16,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-12 15:02:16,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:02:16,292 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:02:16,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:02:16,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1934299508, now seen corresponding path program 2 times [2022-12-12 15:02:16,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:02:16,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254533594] [2022-12-12 15:02:16,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:02:16,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:02:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:02:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:02:17,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:02:17,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254533594] [2022-12-12 15:02:17,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254533594] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:02:17,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635133800] [2022-12-12 15:02:17,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 15:02:17,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:02:17,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:02:17,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:02:17,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-12 15:02:31,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 15:02:31,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 15:02:31,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-12 15:02:31,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:02:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:02:31,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:02:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:02:31,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635133800] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 15:02:31,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 15:02:31,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-12-12 15:02:31,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829130320] [2022-12-12 15:02:31,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 15:02:31,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-12 15:02:31,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:02:31,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-12 15:02:31,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-12-12 15:02:31,958 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 214 [2022-12-12 15:02:31,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 162 flow. Second operand has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 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) [2022-12-12 15:02:31,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:02:31,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 214 [2022-12-12 15:02:31,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:02:33,844 INFO L130 PetriNetUnfolder]: 105/239 cut-off events. [2022-12-12 15:02:33,844 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-12 15:02:33,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 239 events. 105/239 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 847 event pairs, 95 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 558. Up to 212 conditions per place. [2022-12-12 15:02:33,845 INFO L137 encePairwiseOnDemand]: 206/214 looper letters, 41 selfloop transitions, 17 changer transitions 0/64 dead transitions. [2022-12-12 15:02:33,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 326 flow [2022-12-12 15:02:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 15:02:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 15:02:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 184 transitions. [2022-12-12 15:02:33,847 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.07165109034267912 [2022-12-12 15:02:33,847 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 162 flow. Second operand 12 states and 184 transitions. [2022-12-12 15:02:33,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 326 flow [2022-12-12 15:02:33,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 64 transitions, 291 flow, removed 13 selfloop flow, removed 3 redundant places. [2022-12-12 15:02:33,848 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 271 flow [2022-12-12 15:02:33,848 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=271, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2022-12-12 15:02:33,849 INFO L295 CegarLoopForPetriNet]: 198 programPoint places, -129 predicate places. [2022-12-12 15:02:33,849 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 271 flow [2022-12-12 15:02:33,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 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) [2022-12-12 15:02:33,849 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:02:33,849 INFO L214 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:02:33,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-12 15:02:34,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:02:34,065 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:02:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:02:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1602787700, now seen corresponding path program 3 times [2022-12-12 15:02:34,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:02:34,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252425390] [2022-12-12 15:02:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:02:34,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:02:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:02:35,934 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:02:35,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:02:35,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252425390] [2022-12-12 15:02:35,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252425390] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:02:35,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548649285] [2022-12-12 15:02:35,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 15:02:35,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:02:35,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:02:35,936 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:02:35,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-12 15:04:41,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-12 15:04:41,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 15:04:41,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-12 15:04:41,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:04:41,769 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:04:41,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:04:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:04:42,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548649285] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 15:04:42,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 15:04:42,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2022-12-12 15:04:42,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062723456] [2022-12-12 15:04:42,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 15:04:42,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-12 15:04:42,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:04:42,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-12 15:04:42,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2022-12-12 15:04:42,420 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 214 [2022-12-12 15:04:42,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 271 flow. Second operand has 31 states, 31 states have (on average 10.387096774193548) internal successors, (322), 31 states have internal predecessors, (322), 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) [2022-12-12 15:04:42,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:04:42,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 214 [2022-12-12 15:04:42,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:05:00,525 WARN L233 SmtUtils]: Spent 13.86s on a formula simplification. DAG size of input: 67 DAG size of output: 47 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 15:05:08,400 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 61 DAG size of output: 43 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 15:05:25,536 INFO L130 PetriNetUnfolder]: 105/257 cut-off events. [2022-12-12 15:05:25,536 INFO L131 PetriNetUnfolder]: For 246/246 co-relation queries the response was YES. [2022-12-12 15:05:25,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 257 events. 105/257 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 895 event pairs, 95 based on Foata normal form. 18/212 useless extension candidates. Maximal degree in co-relation 659. Up to 207 conditions per place. [2022-12-12 15:05:25,537 INFO L137 encePairwiseOnDemand]: 206/214 looper letters, 37 selfloop transitions, 39 changer transitions 0/82 dead transitions. [2022-12-12 15:05:25,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 82 transitions, 531 flow [2022-12-12 15:05:25,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-12 15:05:25,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-12 15:05:25,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 337 transitions. [2022-12-12 15:05:25,540 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.06299065420560748 [2022-12-12 15:05:25,540 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 271 flow. Second operand 25 states and 337 transitions. [2022-12-12 15:05:25,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 82 transitions, 531 flow [2022-12-12 15:05:25,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 82 transitions, 507 flow, removed 10 selfloop flow, removed 2 redundant places. [2022-12-12 15:05:25,542 INFO L231 Difference]: Finished difference. Result has 91 places, 82 transitions, 437 flow [2022-12-12 15:05:25,542 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=437, PETRI_PLACES=91, PETRI_TRANSITIONS=82} [2022-12-12 15:05:25,543 INFO L295 CegarLoopForPetriNet]: 198 programPoint places, -107 predicate places. [2022-12-12 15:05:25,543 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 82 transitions, 437 flow [2022-12-12 15:05:25,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.387096774193548) internal successors, (322), 31 states have internal predecessors, (322), 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) [2022-12-12 15:05:25,543 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:05:25,543 INFO L214 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:05:25,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-12 15:05:25,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:05:25,744 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 15:05:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:05:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash -843994764, now seen corresponding path program 4 times [2022-12-12 15:05:25,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:05:25,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220683592] [2022-12-12 15:05:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:05:25,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:05:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:05:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:05:27,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:05:27,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220683592] [2022-12-12 15:05:27,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220683592] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 15:05:27,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885845419] [2022-12-12 15:05:27,400 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-12 15:05:27,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 15:05:27,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:05:27,401 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 15:05:27,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-12 15:05:28,828 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-12 15:05:28,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 15:05:28,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-12 15:05:28,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 15:05:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:05:29,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 15:05:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:05:30,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885845419] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 15:05:30,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 15:05:30,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 69 [2022-12-12 15:05:30,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125092785] [2022-12-12 15:05:30,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 15:05:30,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-12-12 15:05:30,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:05:30,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-12-12 15:05:30,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=754, Invalid=4076, Unknown=0, NotChecked=0, Total=4830 [2022-12-12 15:05:30,634 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 214 [2022-12-12 15:05:30,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 82 transitions, 437 flow. Second operand has 70 states, 70 states have (on average 10.17142857142857) internal successors, (712), 70 states have internal predecessors, (712), 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) [2022-12-12 15:05:30,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:05:30,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 214 [2022-12-12 15:05:30,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:05:40,195 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_external_alloc_~size#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 1) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_external_alloc_~i~0#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 15) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 13) 4294967296) .cse0) (< (mod (+ 19 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_external_alloc_~i~0#1| 11) 4294967296) .cse0) (< (mod (+ 7 |c_ULTIMATE.start_external_alloc_~i~0#1|) 4294967296) .cse0))) is different from false Received shutdown request... [2022-12-12 15:05:41,698 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 15:05:41,726 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 15:05:42,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-12 15:05:42,898 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-12-12 15:05:42,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-12 15:05:42,925 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-12 15:05:42,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 15:05:42,925 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-12-12 15:05:42,926 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-12 15:05:42,926 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-12 15:05:42,926 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-12 15:05:42,926 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-12 15:05:42,926 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-12 15:05:42,927 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-12 15:05:42,927 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2022-12-12 15:05:42,929 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 15:05:42,929 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 15:05:42,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 03:05:42 BasicIcfg [2022-12-12 15:05:42,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 15:05:42,931 INFO L158 Benchmark]: Toolchain (without parser) took 836493.38ms. Allocated memory was 243.3MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 207.8MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-12-12 15:05:42,931 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 243.3MB. Free memory is still 219.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:05:42,932 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5303.82ms. Allocated memory was 243.3MB in the beginning and 336.6MB in the end (delta: 93.3MB). Free memory was 207.8MB in the beginning and 270.7MB in the end (delta: -62.9MB). Peak memory consumption was 145.9MB. Max. memory is 8.0GB. [2022-12-12 15:05:42,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.14ms. Allocated memory is still 336.6MB. Free memory was 270.2MB in the beginning and 258.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-12 15:05:42,932 INFO L158 Benchmark]: Boogie Preprocessor took 63.34ms. Allocated memory is still 336.6MB. Free memory was 258.6MB in the beginning and 252.9MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-12 15:05:42,932 INFO L158 Benchmark]: RCFGBuilder took 1162.88ms. Allocated memory is still 336.6MB. Free memory was 252.9MB in the beginning and 188.9MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-12-12 15:05:42,932 INFO L158 Benchmark]: TraceAbstraction took 829810.81ms. Allocated memory was 336.6MB in the beginning and 3.9GB in the end (delta: 3.5GB). Free memory was 187.3MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-12-12 15:05:42,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2022-12-12 15:05:42,934 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 137 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 243.3MB. Free memory is still 219.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5303.82ms. Allocated memory was 243.3MB in the beginning and 336.6MB in the end (delta: 93.3MB). Free memory was 207.8MB in the beginning and 270.7MB in the end (delta: -62.9MB). Peak memory consumption was 145.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 147.14ms. Allocated memory is still 336.6MB. Free memory was 270.2MB in the beginning and 258.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.34ms. Allocated memory is still 336.6MB. Free memory was 258.6MB in the beginning and 252.9MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1162.88ms. Allocated memory is still 336.6MB. Free memory was 252.9MB in the beginning and 188.9MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. * TraceAbstraction took 829810.81ms. Allocated memory was 336.6MB in the beginning and 3.9GB in the end (delta: 3.5GB). Free memory was 187.3MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 563.2s, 731 PlacesBefore, 198 PlacesAfterwards, 788 TransitionsBefore, 214 TransitionsAfterwards, 19018 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 534 TrivialYvCompositions, 158 ConcurrentYvCompositions, 35 ChoiceCompositions, 730 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 61579, independent: 61352, independent conditional: 61352, independent unconditional: 0, dependent: 224, dependent conditional: 224, dependent unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 61579, independent: 61352, independent conditional: 0, independent unconditional: 61352, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 61579, independent: 61352, independent conditional: 0, independent unconditional: 61352, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61579, independent: 61352, independent conditional: 0, independent unconditional: 61352, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18002, independent: 17951, independent conditional: 0, independent unconditional: 17951, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18002, independent: 17944, independent conditional: 0, independent unconditional: 17944, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2334, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 2173, unknown conditional: 0, unknown unconditional: 2173] ], Cache Queries: [ total: 61579, independent: 43401, independent conditional: 0, independent unconditional: 43401, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 18004, unknown conditional: 0, unknown unconditional: 18004] , Statistics on independence cache: Total cache size (in pairs): 108223, Positive cache size: 108173, Positive conditional cache size: 0, Positive unconditional cache size: 108173, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 903 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 829.7s, OverallIterations: 9, TraceHistogramMax: 22, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 74.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 563.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 748 SdHoareTripleChecker+Valid, 19.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 748 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 18.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 261 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5040 IncrementalHoareTripleChecker+Invalid, 5303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 261 mSolverCounterUnsat, 2 mSDtfsCounter, 5040 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 119 SyntacticMatches, 4 SemanticMatches, 153 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1834 ImplicationChecksByTransitivity, 43.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=0, InterpolantAutomatonStates: 65, 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: 0.5s SsaConstructionTime, 146.0s SatisfiabilityAnalysisTime, 41.6s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 323 ConstructedInterpolants, 2 QuantifiedInterpolants, 2115 SizeOfPredicates, 103 NumberOfNonLiveVariables, 8455 ConjunctsInSsa, 432 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 3/963 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown