/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:44:44,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:44:44,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:44:44,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:44:44,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:44:44,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:44:44,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:44:44,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:44:44,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:44:44,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:44:44,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:44:44,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:44:44,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:44:44,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:44:44,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:44:44,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:44:44,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:44:44,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:44:44,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:44:44,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:44:44,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:44:44,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:44:44,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:44:44,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:44:44,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:44:44,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:44:44,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:44:44,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:44:44,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:44:44,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:44:44,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:44:44,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:44:44,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:44:44,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:44:44,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:44:44,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:44:44,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:44:44,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:44:44,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:44:44,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:44:44,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:44:44,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:44:44,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:44:44,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:44:44,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:44:44,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:44:44,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:44:44,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:44:44,147 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:44:44,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:44:44,147 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:44:44,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:44:44,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:44:44,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:44:44,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:44:44,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:44:44,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:44:44,149 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:44:44,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:44:44,149 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:44:44,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:44:44,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:44:44,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:44:44,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:44:44,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:44:44,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:44:44,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:44:44,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:44:44,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:44:44,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:44:44,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:44:44,159 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:44:44,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:44:44,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:44:44,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:44:44,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:44:44,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:44:44,461 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:44:44,461 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:44:44,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-05 18:44:45,399 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:44:45,797 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:44:45,798 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-05 18:44:45,830 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff906986/cbf93ecb0fc74721bc12252e02704270/FLAG8ac468844 [2022-12-05 18:44:45,844 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff906986/cbf93ecb0fc74721bc12252e02704270 [2022-12-05 18:44:45,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:44:45,847 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:44:45,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:44:45,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:44:45,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:44:45,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:44:45" (1/1) ... [2022-12-05 18:44:45,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7191d568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:45, skipping insertion in model container [2022-12-05 18:44:45,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:44:45" (1/1) ... [2022-12-05 18:44:45,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:44:45,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:44:46,208 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i[5469,5482] [2022-12-05 18:44:46,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,561 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:44:46,570 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:46,577 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:46,587 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:46,749 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:46,755 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:46,868 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:44:46,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,960 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:46,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:46,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:47,125 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:44:47,129 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:44:47,133 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:44:47,301 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:44:47,303 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:47,308 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:44:47,309 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:47,499 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:44:47,797 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:47,802 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:47,834 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:44:47,837 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:44:47,969 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:44:48,085 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:44:48,088 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:44:48,177 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:44:48,278 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:44:48,279 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:44:48,279 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:44:48,833 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:44:48,833 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:48,839 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:48,843 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:48,849 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:49,207 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:49,208 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:49,228 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:44:49,228 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:44:49,229 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:44:49,230 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:49,230 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:44:49,231 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:44:49,233 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:49,233 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:44:49,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:44:49,271 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:44:49,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i[5469,5482] [2022-12-05 18:44:49,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,307 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:44:49,307 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:49,307 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:49,308 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:49,311 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:49,311 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:49,313 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:44:49,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:49,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:49,336 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:44:49,337 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:44:49,337 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:44:49,341 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:44:49,342 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:49,342 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:44:49,342 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:49,349 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:44:49,358 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:49,360 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:49,361 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:44:49,362 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:44:49,366 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:44:49,370 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:44:49,370 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:44:49,374 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:44:49,376 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:44:49,377 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:44:49,377 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:44:49,420 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:44:49,420 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:49,423 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:49,426 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:49,428 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:49,459 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:49,459 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:49,464 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:44:49,465 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:44:49,466 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:44:49,467 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:49,467 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:44:49,467 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:44:49,467 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:49,468 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:44:49,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:44:49,861 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:44:49,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49 WrapperNode [2022-12-05 18:44:49,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:44:49,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:44:49,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:44:49,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:44:49,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:49,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,013 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 56, statements flattened = 775 [2022-12-05 18:44:50,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:44:50,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:44:50,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:44:50,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:44:50,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:44:50,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:44:50,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:44:50,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:44:50,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (1/1) ... [2022-12-05 18:44:50,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:44:50,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:50,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:44:50,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:44:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:44:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 18:44:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:44:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 18:44:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-05 18:44:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-05 18:44:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:44:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:44:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-05 18:44:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-05 18:44:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 18:44:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:44:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-05 18:44:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:44:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:44:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 18:44:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:44:50,197 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:44:50,550 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:44:50,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:44:51,036 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:44:51,043 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:44:51,044 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-05 18:44:51,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:44:51 BoogieIcfgContainer [2022-12-05 18:44:51,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:44:51,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:44:51,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:44:51,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:44:51,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:44:45" (1/3) ... [2022-12-05 18:44:51,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d718760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:44:51, skipping insertion in model container [2022-12-05 18:44:51,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:49" (2/3) ... [2022-12-05 18:44:51,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d718760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:44:51, skipping insertion in model container [2022-12-05 18:44:51,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:44:51" (3/3) ... [2022-12-05 18:44:51,051 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-05 18:44:51,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:44:51,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 18:44:51,063 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:44:51,139 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 18:44:51,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 794 places, 857 transitions, 1730 flow [2022-12-05 18:44:51,341 INFO L130 PetriNetUnfolder]: 70/855 cut-off events. [2022-12-05 18:44:51,341 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:44:51,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 855 events. 70/855 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1433 event pairs, 0 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 653. Up to 9 conditions per place. [2022-12-05 18:44:51,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 794 places, 857 transitions, 1730 flow [2022-12-05 18:44:51,357 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 784 places, 847 transitions, 1703 flow [2022-12-05 18:44:51,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:44:51,367 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;@2c39c1fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:44:51,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-05 18:44:51,441 INFO L130 PetriNetUnfolder]: 12/341 cut-off events. [2022-12-05 18:44:51,441 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:44:51,441 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:51,442 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:51,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1816157891, now seen corresponding path program 1 times [2022-12-05 18:44:51,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:51,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335084395] [2022-12-05 18:44:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:52,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335084395] [2022-12-05 18:44:52,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335084395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:52,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:52,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:44:52,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566147651] [2022-12-05 18:44:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:52,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:44:52,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:52,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:44:52,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:44:52,131 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 785 out of 857 [2022-12-05 18:44:52,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 784 places, 847 transitions, 1703 flow. Second operand has 9 states, 9 states have (on average 787.0) internal successors, (7083), 9 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:52,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:52,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 785 of 857 [2022-12-05 18:44:52,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:52,428 INFO L130 PetriNetUnfolder]: 37/807 cut-off events. [2022-12-05 18:44:52,428 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-12-05 18:44:52,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 807 events. 37/807 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1285 event pairs, 0 based on Foata normal form. 21/786 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-12-05 18:44:52,434 INFO L137 encePairwiseOnDemand]: 808/857 looper letters, 18 selfloop transitions, 16 changer transitions 1/807 dead transitions. [2022-12-05 18:44:52,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 807 transitions, 1691 flow [2022-12-05 18:44:52,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:44:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:44:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 12627 transitions. [2022-12-05 18:44:52,460 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9208722287047841 [2022-12-05 18:44:52,462 INFO L175 Difference]: Start difference. First operand has 784 places, 847 transitions, 1703 flow. Second operand 16 states and 12627 transitions. [2022-12-05 18:44:52,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 807 transitions, 1691 flow [2022-12-05 18:44:52,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 789 places, 807 transitions, 1686 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:44:52,478 INFO L231 Difference]: Finished difference. Result has 789 places, 806 transitions, 1648 flow [2022-12-05 18:44:52,480 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=1618, PETRI_DIFFERENCE_MINUEND_PLACES=774, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=807, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=791, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1648, PETRI_PLACES=789, PETRI_TRANSITIONS=806} [2022-12-05 18:44:52,483 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 5 predicate places. [2022-12-05 18:44:52,483 INFO L495 AbstractCegarLoop]: Abstraction has has 789 places, 806 transitions, 1648 flow [2022-12-05 18:44:52,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 787.0) internal successors, (7083), 9 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:52,486 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:52,487 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:52,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:44:52,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:52,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:52,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1867755080, now seen corresponding path program 1 times [2022-12-05 18:44:52,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:52,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127297967] [2022-12-05 18:44:52,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:52,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:52,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:52,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127297967] [2022-12-05 18:44:52,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127297967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:52,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:52,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:44:52,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288923730] [2022-12-05 18:44:52,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:52,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:44:52,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:52,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:44:52,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:44:52,975 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 774 out of 857 [2022-12-05 18:44:52,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 806 transitions, 1648 flow. Second operand has 6 states, 6 states have (on average 778.6666666666666) internal successors, (4672), 6 states have internal predecessors, (4672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:52,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:52,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 774 of 857 [2022-12-05 18:44:52,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:53,468 INFO L130 PetriNetUnfolder]: 122/1750 cut-off events. [2022-12-05 18:44:53,469 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-05 18:44:53,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1889 conditions, 1750 events. 122/1750 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6927 event pairs, 20 based on Foata normal form. 0/1621 useless extension candidates. Maximal degree in co-relation 1424. Up to 55 conditions per place. [2022-12-05 18:44:53,478 INFO L137 encePairwiseOnDemand]: 847/857 looper letters, 52 selfloop transitions, 9 changer transitions 0/821 dead transitions. [2022-12-05 18:44:53,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 793 places, 821 transitions, 1804 flow [2022-12-05 18:44:53,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 18:44:53,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 18:44:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 6254 transitions. [2022-12-05 18:44:53,487 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9121936989498249 [2022-12-05 18:44:53,487 INFO L175 Difference]: Start difference. First operand has 789 places, 806 transitions, 1648 flow. Second operand 8 states and 6254 transitions. [2022-12-05 18:44:53,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 793 places, 821 transitions, 1804 flow [2022-12-05 18:44:53,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 821 transitions, 1772 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-05 18:44:53,499 INFO L231 Difference]: Finished difference. Result has 779 places, 808 transitions, 1651 flow [2022-12-05 18:44:53,500 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=1612, PETRI_DIFFERENCE_MINUEND_PLACES=771, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1651, PETRI_PLACES=779, PETRI_TRANSITIONS=808} [2022-12-05 18:44:53,500 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, -5 predicate places. [2022-12-05 18:44:53,501 INFO L495 AbstractCegarLoop]: Abstraction has has 779 places, 808 transitions, 1651 flow [2022-12-05 18:44:53,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 778.6666666666666) internal successors, (4672), 6 states have internal predecessors, (4672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:53,503 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:53,503 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:53,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:44:53,503 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:53,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1675110681, now seen corresponding path program 1 times [2022-12-05 18:44:53,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:53,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503886433] [2022-12-05 18:44:53,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:53,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:54,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:54,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503886433] [2022-12-05 18:44:54,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503886433] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:54,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:54,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:44:54,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806025346] [2022-12-05 18:44:54,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:54,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:44:54,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:54,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:44:54,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:44:54,035 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 780 out of 857 [2022-12-05 18:44:54,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 808 transitions, 1651 flow. Second operand has 6 states, 6 states have (on average 784.5) internal successors, (4707), 6 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:54,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:54,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 780 of 857 [2022-12-05 18:44:54,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:54,575 INFO L130 PetriNetUnfolder]: 336/3446 cut-off events. [2022-12-05 18:44:54,575 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-12-05 18:44:54,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3921 conditions, 3446 events. 336/3446 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 21001 event pairs, 22 based on Foata normal form. 0/3151 useless extension candidates. Maximal degree in co-relation 1903. Up to 124 conditions per place. [2022-12-05 18:44:54,597 INFO L137 encePairwiseOnDemand]: 848/857 looper letters, 65 selfloop transitions, 19 changer transitions 0/848 dead transitions. [2022-12-05 18:44:54,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 848 transitions, 1921 flow [2022-12-05 18:44:54,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:44:54,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:44:54,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9442 transitions. [2022-12-05 18:44:54,609 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9181252430960716 [2022-12-05 18:44:54,609 INFO L175 Difference]: Start difference. First operand has 779 places, 808 transitions, 1651 flow. Second operand 12 states and 9442 transitions. [2022-12-05 18:44:54,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 848 transitions, 1921 flow [2022-12-05 18:44:54,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 848 transitions, 1912 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 18:44:54,620 INFO L231 Difference]: Finished difference. Result has 792 places, 826 transitions, 1769 flow [2022-12-05 18:44:54,621 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=1642, PETRI_DIFFERENCE_MINUEND_PLACES=774, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1769, PETRI_PLACES=792, PETRI_TRANSITIONS=826} [2022-12-05 18:44:54,621 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 8 predicate places. [2022-12-05 18:44:54,622 INFO L495 AbstractCegarLoop]: Abstraction has has 792 places, 826 transitions, 1769 flow [2022-12-05 18:44:54,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 784.5) internal successors, (4707), 6 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:54,624 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:54,624 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:54,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:44:54,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:54,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:54,625 INFO L85 PathProgramCache]: Analyzing trace with hash 352451334, now seen corresponding path program 1 times [2022-12-05 18:44:54,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:54,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898281373] [2022-12-05 18:44:54,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:54,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:55,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:55,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898281373] [2022-12-05 18:44:55,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898281373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:55,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:55,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-05 18:44:55,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135254277] [2022-12-05 18:44:55,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:55,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:44:55,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:55,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:44:55,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-05 18:44:55,694 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 745 out of 857 [2022-12-05 18:44:55,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 792 places, 826 transitions, 1769 flow. Second operand has 12 states, 12 states have (on average 749.9166666666666) internal successors, (8999), 12 states have internal predecessors, (8999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:55,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:55,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 745 of 857 [2022-12-05 18:44:55,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:56,570 INFO L130 PetriNetUnfolder]: 282/3052 cut-off events. [2022-12-05 18:44:56,570 INFO L131 PetriNetUnfolder]: For 929/1177 co-relation queries the response was YES. [2022-12-05 18:44:56,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4082 conditions, 3052 events. 282/3052 cut-off events. For 929/1177 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 18021 event pairs, 0 based on Foata normal form. 86/2899 useless extension candidates. Maximal degree in co-relation 3712. Up to 66 conditions per place. [2022-12-05 18:44:56,594 INFO L137 encePairwiseOnDemand]: 843/857 looper letters, 97 selfloop transitions, 35 changer transitions 0/863 dead transitions. [2022-12-05 18:44:56,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 809 places, 863 transitions, 2227 flow [2022-12-05 18:44:56,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:44:56,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:44:56,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 13523 transitions. [2022-12-05 18:44:56,611 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8766368468818877 [2022-12-05 18:44:56,611 INFO L175 Difference]: Start difference. First operand has 792 places, 826 transitions, 1769 flow. Second operand 18 states and 13523 transitions. [2022-12-05 18:44:56,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 809 places, 863 transitions, 2227 flow [2022-12-05 18:44:56,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 809 places, 863 transitions, 2227 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 18:44:56,627 INFO L231 Difference]: Finished difference. Result has 813 places, 844 transitions, 2014 flow [2022-12-05 18:44:56,629 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=1769, PETRI_DIFFERENCE_MINUEND_PLACES=792, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=826, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=801, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2014, PETRI_PLACES=813, PETRI_TRANSITIONS=844} [2022-12-05 18:44:56,630 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 29 predicate places. [2022-12-05 18:44:56,630 INFO L495 AbstractCegarLoop]: Abstraction has has 813 places, 844 transitions, 2014 flow [2022-12-05 18:44:56,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 749.9166666666666) internal successors, (8999), 12 states have internal predecessors, (8999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:56,635 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:56,635 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:56,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:44:56,635 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:56,636 INFO L85 PathProgramCache]: Analyzing trace with hash 639064403, now seen corresponding path program 1 times [2022-12-05 18:44:56,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:56,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400838127] [2022-12-05 18:44:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:56,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:57,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:57,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400838127] [2022-12-05 18:44:57,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400838127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:57,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:57,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:44:57,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340306193] [2022-12-05 18:44:57,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:57,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:44:57,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:57,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:44:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:44:57,023 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 797 out of 857 [2022-12-05 18:44:57,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 813 places, 844 transitions, 2014 flow. Second operand has 5 states, 5 states have (on average 798.6) internal successors, (3993), 5 states have internal predecessors, (3993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:57,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:57,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 797 of 857 [2022-12-05 18:44:57,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:57,598 INFO L130 PetriNetUnfolder]: 252/3378 cut-off events. [2022-12-05 18:44:57,598 INFO L131 PetriNetUnfolder]: For 1160/1334 co-relation queries the response was YES. [2022-12-05 18:44:57,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4142 conditions, 3378 events. 252/3378 cut-off events. For 1160/1334 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 18015 event pairs, 0 based on Foata normal form. 15/3145 useless extension candidates. Maximal degree in co-relation 3935. Up to 58 conditions per place. [2022-12-05 18:44:57,619 INFO L137 encePairwiseOnDemand]: 850/857 looper letters, 25 selfloop transitions, 6 changer transitions 0/851 dead transitions. [2022-12-05 18:44:57,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 818 places, 851 transitions, 2094 flow [2022-12-05 18:44:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:44:57,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:44:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4813 transitions. [2022-12-05 18:44:57,626 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9360171139634383 [2022-12-05 18:44:57,626 INFO L175 Difference]: Start difference. First operand has 813 places, 844 transitions, 2014 flow. Second operand 6 states and 4813 transitions. [2022-12-05 18:44:57,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 818 places, 851 transitions, 2094 flow [2022-12-05 18:44:57,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 814 places, 851 transitions, 2019 flow, removed 34 selfloop flow, removed 4 redundant places. [2022-12-05 18:44:57,644 INFO L231 Difference]: Finished difference. Result has 815 places, 845 transitions, 1959 flow [2022-12-05 18:44:57,646 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=809, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=844, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=838, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1959, PETRI_PLACES=815, PETRI_TRANSITIONS=845} [2022-12-05 18:44:57,647 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 31 predicate places. [2022-12-05 18:44:57,648 INFO L495 AbstractCegarLoop]: Abstraction has has 815 places, 845 transitions, 1959 flow [2022-12-05 18:44:57,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 798.6) internal successors, (3993), 5 states have internal predecessors, (3993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:57,649 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:57,650 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:57,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:44:57,650 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:57,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:57,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1885809191, now seen corresponding path program 1 times [2022-12-05 18:44:57,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:57,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63204751] [2022-12-05 18:44:57,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:57,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:58,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:58,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63204751] [2022-12-05 18:44:58,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63204751] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:58,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618954001] [2022-12-05 18:44:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:58,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:58,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:58,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:44:58,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 18:44:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:58,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-05 18:44:58,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:58,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:44:58,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:44:58,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:58,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618954001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:58,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:58,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-05 18:44:58,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86930548] [2022-12-05 18:44:58,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:58,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:44:58,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:58,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:44:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-05 18:44:58,544 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 857 [2022-12-05 18:44:58,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 815 places, 845 transitions, 1959 flow. Second operand has 7 states, 7 states have (on average 758.2857142857143) internal successors, (5308), 7 states have internal predecessors, (5308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:58,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:58,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 857 [2022-12-05 18:44:58,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:01,692 INFO L130 PetriNetUnfolder]: 2916/16641 cut-off events. [2022-12-05 18:45:01,692 INFO L131 PetriNetUnfolder]: For 4358/4793 co-relation queries the response was YES. [2022-12-05 18:45:01,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24233 conditions, 16641 events. 2916/16641 cut-off events. For 4358/4793 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 160817 event pairs, 672 based on Foata normal form. 126/15500 useless extension candidates. Maximal degree in co-relation 23997. Up to 1779 conditions per place. [2022-12-05 18:45:01,806 INFO L137 encePairwiseOnDemand]: 845/857 looper letters, 152 selfloop transitions, 32 changer transitions 0/941 dead transitions. [2022-12-05 18:45:01,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 828 places, 941 transitions, 2665 flow [2022-12-05 18:45:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 18:45:01,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 18:45:01,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 10699 transitions. [2022-12-05 18:45:01,820 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8917319553258877 [2022-12-05 18:45:01,820 INFO L175 Difference]: Start difference. First operand has 815 places, 845 transitions, 1959 flow. Second operand 14 states and 10699 transitions. [2022-12-05 18:45:01,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 828 places, 941 transitions, 2665 flow [2022-12-05 18:45:01,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 824 places, 941 transitions, 2655 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 18:45:01,852 INFO L231 Difference]: Finished difference. Result has 832 places, 870 transitions, 2250 flow [2022-12-05 18:45:01,853 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=1949, PETRI_DIFFERENCE_MINUEND_PLACES=811, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=845, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2250, PETRI_PLACES=832, PETRI_TRANSITIONS=870} [2022-12-05 18:45:01,855 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 48 predicate places. [2022-12-05 18:45:01,857 INFO L495 AbstractCegarLoop]: Abstraction has has 832 places, 870 transitions, 2250 flow [2022-12-05 18:45:01,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 758.2857142857143) internal successors, (5308), 7 states have internal predecessors, (5308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:01,858 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:01,858 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:01,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:02,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-05 18:45:02,065 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:45:02,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1262073940, now seen corresponding path program 1 times [2022-12-05 18:45:02,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:02,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381540233] [2022-12-05 18:45:02,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:02,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:02,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:02,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381540233] [2022-12-05 18:45:02,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381540233] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:02,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094383773] [2022-12-05 18:45:02,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:02,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:02,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:02,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:02,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 18:45:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:02,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:02,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:03,177 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:03,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:03,199 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:03,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:03,221 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:03,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:03,235 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:03,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:45:03,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:03,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:03,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:03,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094383773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:03,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:03,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:03,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809317967] [2022-12-05 18:45:03,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:03,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:03,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:03,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:03,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:03,802 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-05 18:45:03,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 870 transitions, 2250 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:03,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:03,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-05 18:45:03,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:09,306 INFO L130 PetriNetUnfolder]: 5682/27048 cut-off events. [2022-12-05 18:45:09,306 INFO L131 PetriNetUnfolder]: For 11495/11823 co-relation queries the response was YES. [2022-12-05 18:45:09,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43584 conditions, 27048 events. 5682/27048 cut-off events. For 11495/11823 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 302775 event pairs, 850 based on Foata normal form. 128/25146 useless extension candidates. Maximal degree in co-relation 43298. Up to 3324 conditions per place. [2022-12-05 18:45:09,491 INFO L137 encePairwiseOnDemand]: 835/857 looper letters, 289 selfloop transitions, 47 changer transitions 0/1036 dead transitions. [2022-12-05 18:45:09,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 851 places, 1036 transitions, 3637 flow [2022-12-05 18:45:09,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 18:45:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 18:45:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 14146 transitions. [2022-12-05 18:45:09,504 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.825320886814469 [2022-12-05 18:45:09,504 INFO L175 Difference]: Start difference. First operand has 832 places, 870 transitions, 2250 flow. Second operand 20 states and 14146 transitions. [2022-12-05 18:45:09,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 851 places, 1036 transitions, 3637 flow [2022-12-05 18:45:09,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 851 places, 1036 transitions, 3637 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 18:45:09,587 INFO L231 Difference]: Finished difference. Result has 861 places, 896 transitions, 2629 flow [2022-12-05 18:45:09,589 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=2250, PETRI_DIFFERENCE_MINUEND_PLACES=832, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=870, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=823, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2629, PETRI_PLACES=861, PETRI_TRANSITIONS=896} [2022-12-05 18:45:09,589 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 77 predicate places. [2022-12-05 18:45:09,589 INFO L495 AbstractCegarLoop]: Abstraction has has 861 places, 896 transitions, 2629 flow [2022-12-05 18:45:09,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:09,591 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:09,592 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:09,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:09,798 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,SelfDestructingSolverStorable6 [2022-12-05 18:45:09,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:45:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:09,799 INFO L85 PathProgramCache]: Analyzing trace with hash -80811442, now seen corresponding path program 2 times [2022-12-05 18:45:09,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:09,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328617316] [2022-12-05 18:45:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:09,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:10,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:10,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328617316] [2022-12-05 18:45:10,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328617316] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:10,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993264777] [2022-12-05 18:45:10,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:45:10,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:10,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:10,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:10,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 18:45:10,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 18:45:10,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:10,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:10,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:10,816 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:10,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:10,839 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:10,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:10,864 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:10,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:10,880 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:10,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:45:11,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:11,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:11,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:11,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993264777] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:11,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:11,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:11,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844988612] [2022-12-05 18:45:11,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:11,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:11,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:11,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:11,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:11,460 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-05 18:45:11,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 896 transitions, 2629 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:11,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:11,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-05 18:45:11,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:18,468 INFO L130 PetriNetUnfolder]: 7316/35152 cut-off events. [2022-12-05 18:45:18,468 INFO L131 PetriNetUnfolder]: For 21222/21634 co-relation queries the response was YES. [2022-12-05 18:45:18,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58817 conditions, 35152 events. 7316/35152 cut-off events. For 21222/21634 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 416581 event pairs, 1498 based on Foata normal form. 244/32646 useless extension candidates. Maximal degree in co-relation 58513. Up to 3180 conditions per place. [2022-12-05 18:45:18,786 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 346 selfloop transitions, 93 changer transitions 0/1139 dead transitions. [2022-12-05 18:45:18,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 893 places, 1139 transitions, 4648 flow [2022-12-05 18:45:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-05 18:45:18,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-05 18:45:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 23256 transitions. [2022-12-05 18:45:18,800 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8223188713270394 [2022-12-05 18:45:18,800 INFO L175 Difference]: Start difference. First operand has 861 places, 896 transitions, 2629 flow. Second operand 33 states and 23256 transitions. [2022-12-05 18:45:18,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 893 places, 1139 transitions, 4648 flow [2022-12-05 18:45:18,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 884 places, 1139 transitions, 4594 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-12-05 18:45:18,995 INFO L231 Difference]: Finished difference. Result has 904 places, 944 transitions, 3368 flow [2022-12-05 18:45:18,996 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=2608, PETRI_DIFFERENCE_MINUEND_PLACES=852, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=828, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=3368, PETRI_PLACES=904, PETRI_TRANSITIONS=944} [2022-12-05 18:45:18,998 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 120 predicate places. [2022-12-05 18:45:18,998 INFO L495 AbstractCegarLoop]: Abstraction has has 904 places, 944 transitions, 3368 flow [2022-12-05 18:45:19,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:19,001 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:19,001 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:19,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:19,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:19,208 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:45:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash 758443270, now seen corresponding path program 3 times [2022-12-05 18:45:19,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:19,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426253629] [2022-12-05 18:45:19,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:19,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:19,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:19,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426253629] [2022-12-05 18:45:19,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426253629] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:19,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028498620] [2022-12-05 18:45:19,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 18:45:19,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:19,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:19,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:19,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-05 18:45:20,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-05 18:45:20,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:20,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:20,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:20,363 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:20,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:20,382 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:20,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:20,403 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:20,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:20,423 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:20,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:45:20,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:20,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:21,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:21,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:21,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028498620] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:21,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:21,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:21,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975372925] [2022-12-05 18:45:21,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:21,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:21,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:21,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:21,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:21,048 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-05 18:45:21,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 904 places, 944 transitions, 3368 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:21,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:21,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-05 18:45:21,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:30,631 INFO L130 PetriNetUnfolder]: 9170/43720 cut-off events. [2022-12-05 18:45:30,631 INFO L131 PetriNetUnfolder]: For 46884/47540 co-relation queries the response was YES. [2022-12-05 18:45:31,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78807 conditions, 43720 events. 9170/43720 cut-off events. For 46884/47540 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 540374 event pairs, 2178 based on Foata normal form. 128/40392 useless extension candidates. Maximal degree in co-relation 78483. Up to 6614 conditions per place. [2022-12-05 18:45:31,274 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 406 selfloop transitions, 89 changer transitions 0/1195 dead transitions. [2022-12-05 18:45:31,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 932 places, 1195 transitions, 5852 flow [2022-12-05 18:45:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-05 18:45:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-05 18:45:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 20475 transitions. [2022-12-05 18:45:31,289 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.823844203919044 [2022-12-05 18:45:31,289 INFO L175 Difference]: Start difference. First operand has 904 places, 944 transitions, 3368 flow. Second operand 29 states and 20475 transitions. [2022-12-05 18:45:31,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 932 places, 1195 transitions, 5852 flow [2022-12-05 18:45:31,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 1195 transitions, 5775 flow, removed 25 selfloop flow, removed 8 redundant places. [2022-12-05 18:45:31,718 INFO L231 Difference]: Finished difference. Result has 941 places, 993 transitions, 4340 flow [2022-12-05 18:45:31,719 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=3297, PETRI_DIFFERENCE_MINUEND_PLACES=896, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=4340, PETRI_PLACES=941, PETRI_TRANSITIONS=993} [2022-12-05 18:45:31,720 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 157 predicate places. [2022-12-05 18:45:31,720 INFO L495 AbstractCegarLoop]: Abstraction has has 941 places, 993 transitions, 4340 flow [2022-12-05 18:45:31,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:31,722 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:31,723 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:31,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-05 18:45:31,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:31,929 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:45:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:31,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1514481156, now seen corresponding path program 4 times [2022-12-05 18:45:31,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:31,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138289494] [2022-12-05 18:45:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:31,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:32,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:32,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138289494] [2022-12-05 18:45:32,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138289494] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:32,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905382684] [2022-12-05 18:45:32,266 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-05 18:45:32,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:32,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:32,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:32,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-05 18:45:32,755 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-05 18:45:32,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:32,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:32,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:32,936 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:32,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:32,954 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:32,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:32,976 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:32,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:32,990 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:32,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:45:33,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:33,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:33,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:33,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905382684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:33,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:33,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:33,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117620286] [2022-12-05 18:45:33,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:33,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:33,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:33,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:33,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:33,555 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-05 18:45:33,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 941 places, 993 transitions, 4340 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:33,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:33,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-05 18:45:33,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:47,384 INFO L130 PetriNetUnfolder]: 11666/56496 cut-off events. [2022-12-05 18:45:47,385 INFO L131 PetriNetUnfolder]: For 78818/80322 co-relation queries the response was YES. [2022-12-05 18:45:48,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103725 conditions, 56496 events. 11666/56496 cut-off events. For 78818/80322 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 734326 event pairs, 2724 based on Foata normal form. 688/52690 useless extension candidates. Maximal degree in co-relation 103384. Up to 4764 conditions per place. [2022-12-05 18:45:48,676 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 389 selfloop transitions, 151 changer transitions 0/1240 dead transitions. [2022-12-05 18:45:48,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 970 places, 1240 transitions, 7162 flow [2022-12-05 18:45:48,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-05 18:45:48,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-05 18:45:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 21156 transitions. [2022-12-05 18:45:48,706 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8228704784130688 [2022-12-05 18:45:48,706 INFO L175 Difference]: Start difference. First operand has 941 places, 993 transitions, 4340 flow. Second operand 30 states and 21156 transitions. [2022-12-05 18:45:48,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 970 places, 1240 transitions, 7162 flow [2022-12-05 18:45:49,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 1240 transitions, 6944 flow, removed 95 selfloop flow, removed 8 redundant places. [2022-12-05 18:45:49,561 INFO L231 Difference]: Finished difference. Result has 978 places, 1049 transitions, 5505 flow [2022-12-05 18:45:49,563 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=4142, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=863, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=5505, PETRI_PLACES=978, PETRI_TRANSITIONS=1049} [2022-12-05 18:45:49,564 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 194 predicate places. [2022-12-05 18:45:49,564 INFO L495 AbstractCegarLoop]: Abstraction has has 978 places, 1049 transitions, 5505 flow [2022-12-05 18:45:49,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:49,566 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:49,566 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:49,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:49,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-05 18:45:49,773 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:45:49,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:49,773 INFO L85 PathProgramCache]: Analyzing trace with hash 76285542, now seen corresponding path program 5 times [2022-12-05 18:45:49,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:49,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552850758] [2022-12-05 18:45:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:49,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:50,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:50,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:50,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552850758] [2022-12-05 18:45:50,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552850758] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:50,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771891682] [2022-12-05 18:45:50,117 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-05 18:45:50,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:50,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:50,119 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:50,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-05 18:45:50,551 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 18:45:50,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:50,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:50,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:50,706 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:50,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:50,725 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:50,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:50,744 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:50,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:50,757 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:50,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-05 18:45:51,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:51,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:51,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:51,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:51,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771891682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:51,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:51,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:51,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490373831] [2022-12-05 18:45:51,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:51,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:51,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:51,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:51,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:51,301 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-05 18:45:51,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 1049 transitions, 5505 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:51,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:51,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-05 18:45:51,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:07,315 INFO L130 PetriNetUnfolder]: 12980/62826 cut-off events. [2022-12-05 18:46:07,315 INFO L131 PetriNetUnfolder]: For 114162/115434 co-relation queries the response was YES. [2022-12-05 18:46:08,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119921 conditions, 62826 events. 12980/62826 cut-off events. For 114162/115434 co-relation queries the response was YES. Maximal size of possible extension queue 835. Compared 832486 event pairs, 2186 based on Foata normal form. 460/58316 useless extension candidates. Maximal degree in co-relation 119564. Up to 4150 conditions per place. [2022-12-05 18:46:08,809 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 390 selfloop transitions, 205 changer transitions 0/1294 dead transitions. [2022-12-05 18:46:08,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1009 places, 1294 transitions, 8396 flow [2022-12-05 18:46:08,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-05 18:46:08,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-05 18:46:08,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 23967 transitions. [2022-12-05 18:46:08,827 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8225341478481708 [2022-12-05 18:46:08,828 INFO L175 Difference]: Start difference. First operand has 978 places, 1049 transitions, 5505 flow. Second operand 34 states and 23967 transitions. [2022-12-05 18:46:08,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1009 places, 1294 transitions, 8396 flow [2022-12-05 18:46:09,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 997 places, 1294 transitions, 8052 flow, removed 112 selfloop flow, removed 12 redundant places. [2022-12-05 18:46:09,993 INFO L231 Difference]: Finished difference. Result has 1016 places, 1094 transitions, 6868 flow [2022-12-05 18:46:09,994 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=5259, PETRI_DIFFERENCE_MINUEND_PLACES=964, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1047, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=863, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=6868, PETRI_PLACES=1016, PETRI_TRANSITIONS=1094} [2022-12-05 18:46:09,995 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 232 predicate places. [2022-12-05 18:46:09,995 INFO L495 AbstractCegarLoop]: Abstraction has has 1016 places, 1094 transitions, 6868 flow [2022-12-05 18:46:09,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:09,997 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:09,997 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:10,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:10,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:10,206 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:46:10,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:10,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1746919909, now seen corresponding path program 1 times [2022-12-05 18:46:10,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:10,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409247808] [2022-12-05 18:46:10,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:10,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:10,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:10,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:10,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409247808] [2022-12-05 18:46:10,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409247808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:10,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:46:10,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:46:10,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618489575] [2022-12-05 18:46:10,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:10,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:46:10,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:10,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:46:10,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:46:10,677 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 786 out of 857 [2022-12-05 18:46:10,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1016 places, 1094 transitions, 6868 flow. Second operand has 8 states, 8 states have (on average 788.875) internal successors, (6311), 8 states have internal predecessors, (6311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:10,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:10,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 786 of 857 [2022-12-05 18:46:10,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:18,431 INFO L130 PetriNetUnfolder]: 4754/31086 cut-off events. [2022-12-05 18:46:18,431 INFO L131 PetriNetUnfolder]: For 57324/57732 co-relation queries the response was YES. [2022-12-05 18:46:18,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54161 conditions, 31086 events. 4754/31086 cut-off events. For 57324/57732 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 406793 event pairs, 836 based on Foata normal form. 130/28344 useless extension candidates. Maximal degree in co-relation 53855. Up to 3187 conditions per place. [2022-12-05 18:46:18,843 INFO L137 encePairwiseOnDemand]: 846/857 looper letters, 181 selfloop transitions, 13 changer transitions 1/1191 dead transitions. [2022-12-05 18:46:18,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 1191 transitions, 8745 flow [2022-12-05 18:46:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:46:18,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:46:18,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 8714 transitions. [2022-12-05 18:46:18,872 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.924366182242495 [2022-12-05 18:46:18,872 INFO L175 Difference]: Start difference. First operand has 1016 places, 1094 transitions, 6868 flow. Second operand 11 states and 8714 transitions. [2022-12-05 18:46:18,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 1191 transitions, 8745 flow [2022-12-05 18:46:19,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1008 places, 1191 transitions, 8207 flow, removed 157 selfloop flow, removed 18 redundant places. [2022-12-05 18:46:19,234 INFO L231 Difference]: Finished difference. Result has 1015 places, 1106 transitions, 6492 flow [2022-12-05 18:46:19,235 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=857, PETRI_DIFFERENCE_MINUEND_FLOW=6402, PETRI_DIFFERENCE_MINUEND_PLACES=998, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1094, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1084, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6492, PETRI_PLACES=1015, PETRI_TRANSITIONS=1106} [2022-12-05 18:46:19,235 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 231 predicate places. [2022-12-05 18:46:19,235 INFO L495 AbstractCegarLoop]: Abstraction has has 1015 places, 1106 transitions, 6492 flow [2022-12-05 18:46:19,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 788.875) internal successors, (6311), 8 states have internal predecessors, (6311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:19,236 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:19,236 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:19,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-05 18:46:19,237 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:46:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1137167867, now seen corresponding path program 1 times [2022-12-05 18:46:19,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:19,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914217279] [2022-12-05 18:46:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:19,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:19,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914217279] [2022-12-05 18:46:19,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914217279] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:19,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997620002] [2022-12-05 18:46:19,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:19,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:19,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:19,736 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:19,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-05 18:46:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:20,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-05 18:46:20,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:20,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:20,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997620002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:20,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:20,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-12-05 18:46:20,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667314791] [2022-12-05 18:46:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:20,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:46:20,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:20,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:46:20,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-05 18:46:20,177 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 786 out of 857 [2022-12-05 18:46:20,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1015 places, 1106 transitions, 6492 flow. Second operand has 6 states, 6 states have (on average 788.8333333333334) internal successors, (4733), 6 states have internal predecessors, (4733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:20,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:20,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 786 of 857 [2022-12-05 18:46:20,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand