/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_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:45:13,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:45:13,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:45:13,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:45:13,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:45:13,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:45:13,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:45:13,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:45:13,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:45:13,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:45:13,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:45:13,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:45:13,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:45:13,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:45:13,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:45:13,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:45:13,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:45:13,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:45:13,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:45:13,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:45:13,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:45:13,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:45:13,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:45:13,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:45:13,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:45:13,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:45:13,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:45:13,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:45:13,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:45:13,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:45:13,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:45:13,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:45:13,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:45:13,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:45:13,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:45:13,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:45:13,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:45:13,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:45:13,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:45:13,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:45:13,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:45:13,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:45:13,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:45:13,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:45:13,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:45:13,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:45:13,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:45:13,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:45:13,312 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:45:13,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:45:13,312 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:45:13,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:45:13,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:45:13,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:45:13,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:45:13,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:45:13,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:45:13,314 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:45:13,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:45:13,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:45:13,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:45:13,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:45:13,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:45:13,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:45:13,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:45:13,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:45:13,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:45:13,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:45:13,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:45:13,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:45:13,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:45:13,315 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:45:13,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:45:13,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:45:13,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:45:13,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:45:13,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:45:13,631 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:45:13,632 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:45:13,633 INFO L432 ainManager$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_current.i [2022-12-05 18:45:14,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:45:15,192 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:45:15,193 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2022-12-05 18:45:15,226 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ff067d7/e8f41ccc526c49c0bd6b92ce57fad719/FLAGb2c2e8ed4 [2022-12-05 18:45:15,272 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ff067d7/e8f41ccc526c49c0bd6b92ce57fad719 [2022-12-05 18:45:15,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:45:15,276 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:45:15,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:45:15,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:45:15,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:45:15,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:45:15" (1/1) ... [2022-12-05 18:45:15,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52112458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:15, skipping insertion in model container [2022-12-05 18:45:15,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:45:15" (1/1) ... [2022-12-05 18:45:15,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:45:15,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:45:15,749 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_current.i[5469,5482] [2022-12-05 18:45:16,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,118 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:45:16,127 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:16,135 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:16,148 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:16,319 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:45:16,326 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:45:16,470 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:45:16,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:16,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:16,742 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:45:16,745 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:45:16,749 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:45:16,821 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:45:16,822 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:45:16,824 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:45:16,825 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:45:16,967 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:45:17,250 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:45:17,256 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:45:17,295 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:45:17,298 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:45:17,456 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:45:17,573 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:45:17,576 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:45:17,658 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:45:17,753 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:45:17,753 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:45:17,753 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:45:18,351 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:45:18,352 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:18,355 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:18,359 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:18,362 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:18,813 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:45:18,814 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:45:18,838 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:45:18,839 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:45:18,840 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:45:18,841 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:45:18,841 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:45:18,842 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:45:18,845 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:45:18,846 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:45:18,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:45:18,881 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:45:18,905 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_current.i[5469,5482] [2022-12-05 18:45:18,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,924 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:45:18,924 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:18,924 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:18,925 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:45:18,981 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:45:18,982 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:45:18,984 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:45:18,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:18,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:45:18,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:45:19,016 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:45:19,017 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:45:19,017 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:45:19,021 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:45:19,021 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:45:19,021 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:45:19,022 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:45:19,032 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:45:19,045 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:45:19,046 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:45:19,048 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:45:19,048 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:45:19,055 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:45:19,059 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:45:19,060 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:45:19,065 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:45:19,070 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:45:19,070 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:45:19,070 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:45:19,140 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:45:19,140 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:19,145 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:19,152 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:19,155 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:45:19,196 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:45:19,197 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:45:19,201 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:45:19,203 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:45:19,203 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:45:19,205 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:45:19,205 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:45:19,205 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:45:19,206 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:45:19,206 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:45:19,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:45:19,695 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:45:19,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19 WrapperNode [2022-12-05 18:45:19,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:45:19,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:45:19,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:45:19,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:45:19,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,856 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 49, statements flattened = 666 [2022-12-05 18:45:19,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:45:19,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:45:19,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:45:19,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:45:19,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,915 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:45:19,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:45:19,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:45:19,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:45:19,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (1/1) ... [2022-12-05 18:45:19,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:45:19,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:19,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:45:20,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:45:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:45:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 18:45:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:45:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 18:45:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-05 18:45:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-05 18:45:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:45:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:45:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-05 18:45:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-05 18:45:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 18:45:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:45:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-05 18:45:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:45:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:45:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 18:45:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:45:20,034 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:45:20,479 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:45:20,480 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:45:21,110 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:45:21,131 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:45:21,132 INFO L302 CfgBuilder]: Removed 21 assume(true) statements. [2022-12-05 18:45:21,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:45:21 BoogieIcfgContainer [2022-12-05 18:45:21,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:45:21,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:45:21,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:45:21,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:45:21,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:45:15" (1/3) ... [2022-12-05 18:45:21,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ccb40d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:45:21, skipping insertion in model container [2022-12-05 18:45:21,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:45:19" (2/3) ... [2022-12-05 18:45:21,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ccb40d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:45:21, skipping insertion in model container [2022-12-05 18:45:21,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:45:21" (3/3) ... [2022-12-05 18:45:21,141 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_current.i [2022-12-05 18:45:21,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:45:21,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-05 18:45:21,156 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:45:21,261 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 18:45:21,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 686 places, 732 transitions, 1480 flow [2022-12-05 18:45:21,493 INFO L130 PetriNetUnfolder]: 53/730 cut-off events. [2022-12-05 18:45:21,493 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:45:21,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 730 events. 53/730 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1070 event pairs, 0 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 653. Up to 9 conditions per place. [2022-12-05 18:45:21,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 686 places, 732 transitions, 1480 flow [2022-12-05 18:45:21,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 676 places, 722 transitions, 1453 flow [2022-12-05 18:45:21,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:45:21,521 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;@19d4b8de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:45:21,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-05 18:45:21,565 INFO L130 PetriNetUnfolder]: 12/342 cut-off events. [2022-12-05 18:45:21,565 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:45:21,565 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:21,566 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] [2022-12-05 18:45:21,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:21,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:21,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1040898291, now seen corresponding path program 1 times [2022-12-05 18:45:21,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:21,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505750334] [2022-12-05 18:45:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:21,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:22,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:22,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505750334] [2022-12-05 18:45:22,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505750334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:22,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:22,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:45:22,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824263041] [2022-12-05 18:45:22,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:22,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:45:22,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:22,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:45:22,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:45:22,511 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 668 out of 732 [2022-12-05 18:45:22,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 676 places, 722 transitions, 1453 flow. Second operand has 9 states, 9 states have (on average 670.0) internal successors, (6030), 9 states have internal predecessors, (6030), 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 18:45:22,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:22,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 668 of 732 [2022-12-05 18:45:22,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:22,913 INFO L130 PetriNetUnfolder]: 27/690 cut-off events. [2022-12-05 18:45:22,913 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-12-05 18:45:22,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 690 events. 27/690 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 952 event pairs, 0 based on Foata normal form. 17/676 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-12-05 18:45:22,921 INFO L137 encePairwiseOnDemand]: 690/732 looper letters, 18 selfloop transitions, 16 changer transitions 1/690 dead transitions. [2022-12-05 18:45:22,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 690 transitions, 1457 flow [2022-12-05 18:45:22,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:45:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:45:22,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 10748 transitions. [2022-12-05 18:45:22,959 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.917691256830601 [2022-12-05 18:45:22,961 INFO L175 Difference]: Start difference. First operand has 676 places, 722 transitions, 1453 flow. Second operand 16 states and 10748 transitions. [2022-12-05 18:45:22,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 690 transitions, 1457 flow [2022-12-05 18:45:22,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 690 transitions, 1452 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:45:22,986 INFO L231 Difference]: Finished difference. Result has 682 places, 689 transitions, 1414 flow [2022-12-05 18:45:22,989 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1384, PETRI_DIFFERENCE_MINUEND_PLACES=667, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1414, PETRI_PLACES=682, PETRI_TRANSITIONS=689} [2022-12-05 18:45:22,994 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 6 predicate places. [2022-12-05 18:45:22,994 INFO L495 AbstractCegarLoop]: Abstraction has has 682 places, 689 transitions, 1414 flow [2022-12-05 18:45:22,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 670.0) internal successors, (6030), 9 states have internal predecessors, (6030), 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 18:45:22,998 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:22,999 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:22,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:45:22,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2067762182, now seen corresponding path program 1 times [2022-12-05 18:45:23,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:23,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847503046] [2022-12-05 18:45:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:23,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:23,682 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 18:45:23,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:23,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847503046] [2022-12-05 18:45:23,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847503046] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:23,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:23,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:45:23,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129809195] [2022-12-05 18:45:23,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:23,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:45:23,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:23,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:45:23,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:45:23,689 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 658 out of 732 [2022-12-05 18:45:23,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 689 transitions, 1414 flow. Second operand has 6 states, 6 states have (on average 662.6666666666666) internal successors, (3976), 6 states have internal predecessors, (3976), 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 18:45:23,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:23,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 658 of 732 [2022-12-05 18:45:23,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:24,145 INFO L130 PetriNetUnfolder]: 72/1210 cut-off events. [2022-12-05 18:45:24,145 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:45:24,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1210 events. 72/1210 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3633 event pairs, 12 based on Foata normal form. 0/1135 useless extension candidates. Maximal degree in co-relation 866. Up to 46 conditions per place. [2022-12-05 18:45:24,151 INFO L137 encePairwiseOnDemand]: 722/732 looper letters, 50 selfloop transitions, 9 changer transitions 0/703 dead transitions. [2022-12-05 18:45:24,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 703 transitions, 1564 flow [2022-12-05 18:45:24,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 18:45:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 18:45:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5324 transitions. [2022-12-05 18:45:24,161 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9091530054644809 [2022-12-05 18:45:24,161 INFO L175 Difference]: Start difference. First operand has 682 places, 689 transitions, 1414 flow. Second operand 8 states and 5324 transitions. [2022-12-05 18:45:24,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 703 transitions, 1564 flow [2022-12-05 18:45:24,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 703 transitions, 1532 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-05 18:45:24,172 INFO L231 Difference]: Finished difference. Result has 672 places, 691 transitions, 1417 flow [2022-12-05 18:45:24,173 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1378, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1417, PETRI_PLACES=672, PETRI_TRANSITIONS=691} [2022-12-05 18:45:24,174 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, -4 predicate places. [2022-12-05 18:45:24,174 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 691 transitions, 1417 flow [2022-12-05 18:45:24,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 662.6666666666666) internal successors, (3976), 6 states have internal predecessors, (3976), 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 18:45:24,177 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:24,177 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 18:45:24,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:45:24,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:24,178 INFO L85 PathProgramCache]: Analyzing trace with hash 444713056, now seen corresponding path program 1 times [2022-12-05 18:45:24,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:24,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309464087] [2022-12-05 18:45:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:24,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:24,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:24,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:24,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309464087] [2022-12-05 18:45:24,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309464087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:24,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:24,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:45:24,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704684686] [2022-12-05 18:45:24,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:24,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:45:24,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:24,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:45:24,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:45:24,813 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 664 out of 732 [2022-12-05 18:45:24,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 691 transitions, 1417 flow. Second operand has 6 states, 6 states have (on average 668.5) internal successors, (4011), 6 states have internal predecessors, (4011), 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 18:45:24,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:24,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 664 of 732 [2022-12-05 18:45:24,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:25,354 INFO L130 PetriNetUnfolder]: 206/2188 cut-off events. [2022-12-05 18:45:25,355 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-05 18:45:25,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2549 conditions, 2188 events. 206/2188 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11368 event pairs, 18 based on Foata normal form. 0/2023 useless extension candidates. Maximal degree in co-relation 1217. Up to 90 conditions per place. [2022-12-05 18:45:25,370 INFO L137 encePairwiseOnDemand]: 724/732 looper letters, 59 selfloop transitions, 14 changer transitions 0/721 dead transitions. [2022-12-05 18:45:25,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 683 places, 721 transitions, 1645 flow [2022-12-05 18:45:25,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:45:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:45:25,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8039 transitions. [2022-12-05 18:45:25,386 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9151867030965392 [2022-12-05 18:45:25,386 INFO L175 Difference]: Start difference. First operand has 672 places, 691 transitions, 1417 flow. Second operand 12 states and 8039 transitions. [2022-12-05 18:45:25,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 683 places, 721 transitions, 1645 flow [2022-12-05 18:45:25,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 678 places, 721 transitions, 1636 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 18:45:25,401 INFO L231 Difference]: Finished difference. Result has 682 places, 704 transitions, 1490 flow [2022-12-05 18:45:25,402 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1408, PETRI_DIFFERENCE_MINUEND_PLACES=667, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1490, PETRI_PLACES=682, PETRI_TRANSITIONS=704} [2022-12-05 18:45:25,404 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 6 predicate places. [2022-12-05 18:45:25,404 INFO L495 AbstractCegarLoop]: Abstraction has has 682 places, 704 transitions, 1490 flow [2022-12-05 18:45:25,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 668.5) internal successors, (4011), 6 states have internal predecessors, (4011), 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 18:45:25,406 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:25,406 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 18:45:25,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:45:25,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:25,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:25,407 INFO L85 PathProgramCache]: Analyzing trace with hash 263238215, now seen corresponding path program 1 times [2022-12-05 18:45:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:25,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072297988] [2022-12-05 18:45:25,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:25,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:26,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:26,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072297988] [2022-12-05 18:45:26,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072297988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:26,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:26,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-05 18:45:26,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634543400] [2022-12-05 18:45:26,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:26,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:45:26,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:26,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:45:26,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-05 18:45:26,822 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 732 [2022-12-05 18:45:26,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 704 transitions, 1490 flow. Second operand has 12 states, 12 states have (on average 633.9166666666666) internal successors, (7607), 12 states have internal predecessors, (7607), 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 18:45:26,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:26,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 732 [2022-12-05 18:45:26,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:27,554 INFO L130 PetriNetUnfolder]: 184/1970 cut-off events. [2022-12-05 18:45:27,554 INFO L131 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2022-12-05 18:45:27,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2503 conditions, 1970 events. 184/1970 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9424 event pairs, 4 based on Foata normal form. 4/1843 useless extension candidates. Maximal degree in co-relation 2310. Up to 56 conditions per place. [2022-12-05 18:45:27,566 INFO L137 encePairwiseOnDemand]: 720/732 looper letters, 79 selfloop transitions, 18 changer transitions 0/711 dead transitions. [2022-12-05 18:45:27,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 711 transitions, 1712 flow [2022-12-05 18:45:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:45:27,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:45:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 8263 transitions. [2022-12-05 18:45:27,580 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8683270281630937 [2022-12-05 18:45:27,581 INFO L175 Difference]: Start difference. First operand has 682 places, 704 transitions, 1490 flow. Second operand 13 states and 8263 transitions. [2022-12-05 18:45:27,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 692 places, 711 transitions, 1712 flow [2022-12-05 18:45:27,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 711 transitions, 1706 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:45:27,595 INFO L231 Difference]: Finished difference. Result has 690 places, 702 transitions, 1512 flow [2022-12-05 18:45:27,596 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1476, PETRI_DIFFERENCE_MINUEND_PLACES=678, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1512, PETRI_PLACES=690, PETRI_TRANSITIONS=702} [2022-12-05 18:45:27,597 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 14 predicate places. [2022-12-05 18:45:27,597 INFO L495 AbstractCegarLoop]: Abstraction has has 690 places, 702 transitions, 1512 flow [2022-12-05 18:45:27,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 633.9166666666666) internal successors, (7607), 12 states have internal predecessors, (7607), 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 18:45:27,602 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:27,602 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 18:45:27,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:45:27,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:27,603 INFO L85 PathProgramCache]: Analyzing trace with hash -385185696, now seen corresponding path program 1 times [2022-12-05 18:45:27,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:27,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25114845] [2022-12-05 18:45:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:27,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:28,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:28,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25114845] [2022-12-05 18:45:28,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25114845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:28,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:45:28,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:45:28,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479325306] [2022-12-05 18:45:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:28,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:45:28,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:28,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:45:28,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:45:28,089 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 680 out of 732 [2022-12-05 18:45:28,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 702 transitions, 1512 flow. Second operand has 5 states, 5 states have (on average 681.6) internal successors, (3408), 5 states have internal predecessors, (3408), 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 18:45:28,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:28,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 680 of 732 [2022-12-05 18:45:28,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:28,454 INFO L130 PetriNetUnfolder]: 132/1968 cut-off events. [2022-12-05 18:45:28,454 INFO L131 PetriNetUnfolder]: For 53/62 co-relation queries the response was YES. [2022-12-05 18:45:28,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2231 conditions, 1968 events. 132/1968 cut-off events. For 53/62 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 8297 event pairs, 0 based on Foata normal form. 0/1828 useless extension candidates. Maximal degree in co-relation 1082. Up to 36 conditions per place. [2022-12-05 18:45:28,470 INFO L137 encePairwiseOnDemand]: 725/732 looper letters, 25 selfloop transitions, 6 changer transitions 0/709 dead transitions. [2022-12-05 18:45:28,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 695 places, 709 transitions, 1592 flow [2022-12-05 18:45:28,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:45:28,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:45:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4111 transitions. [2022-12-05 18:45:28,478 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9360200364298725 [2022-12-05 18:45:28,478 INFO L175 Difference]: Start difference. First operand has 690 places, 702 transitions, 1512 flow. Second operand 6 states and 4111 transitions. [2022-12-05 18:45:28,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 695 places, 709 transitions, 1592 flow [2022-12-05 18:45:28,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 684 places, 709 transitions, 1559 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-12-05 18:45:28,492 INFO L231 Difference]: Finished difference. Result has 685 places, 703 transitions, 1499 flow [2022-12-05 18:45:28,493 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1479, PETRI_DIFFERENCE_MINUEND_PLACES=679, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=696, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1499, PETRI_PLACES=685, PETRI_TRANSITIONS=703} [2022-12-05 18:45:28,495 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 9 predicate places. [2022-12-05 18:45:28,495 INFO L495 AbstractCegarLoop]: Abstraction has has 685 places, 703 transitions, 1499 flow [2022-12-05 18:45:28,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 681.6) internal successors, (3408), 5 states have internal predecessors, (3408), 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 18:45:28,498 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:28,498 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] [2022-12-05 18:45:28,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:45:28,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:28,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash 122575318, now seen corresponding path program 1 times [2022-12-05 18:45:28,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:28,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118895945] [2022-12-05 18:45:28,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:28,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:29,009 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 18:45:29,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:29,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118895945] [2022-12-05 18:45:29,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118895945] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:29,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704468754] [2022-12-05 18:45:29,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:29,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:29,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:29,014 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 18:45:29,015 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 18:45:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:29,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-05 18:45:29,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:29,531 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 18:45:29,570 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 18:45:29,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:29,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704468754] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:29,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:29,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-05 18:45:29,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570894670] [2022-12-05 18:45:29,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:29,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:45:29,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:29,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:45:29,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-05 18:45:29,580 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 732 [2022-12-05 18:45:29,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 703 transitions, 1499 flow. Second operand has 7 states, 7 states have (on average 652.2857142857143) internal successors, (4566), 7 states have internal predecessors, (4566), 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 18:45:29,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:29,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 732 [2022-12-05 18:45:29,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:31,116 INFO L130 PetriNetUnfolder]: 1302/6792 cut-off events. [2022-12-05 18:45:31,116 INFO L131 PetriNetUnfolder]: For 536/764 co-relation queries the response was YES. [2022-12-05 18:45:31,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9799 conditions, 6792 events. 1302/6792 cut-off events. For 536/764 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 57251 event pairs, 258 based on Foata normal form. 0/6278 useless extension candidates. Maximal degree in co-relation 9572. Up to 741 conditions per place. [2022-12-05 18:45:31,158 INFO L137 encePairwiseOnDemand]: 723/732 looper letters, 97 selfloop transitions, 17 changer transitions 27/771 dead transitions. [2022-12-05 18:45:31,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 697 places, 771 transitions, 1940 flow [2022-12-05 18:45:31,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:45:31,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:45:31,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 8537 transitions. [2022-12-05 18:45:31,175 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8971206389239176 [2022-12-05 18:45:31,176 INFO L175 Difference]: Start difference. First operand has 685 places, 703 transitions, 1499 flow. Second operand 13 states and 8537 transitions. [2022-12-05 18:45:31,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 697 places, 771 transitions, 1940 flow [2022-12-05 18:45:31,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 693 places, 771 transitions, 1930 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 18:45:31,190 INFO L231 Difference]: Finished difference. Result has 698 places, 706 transitions, 1559 flow [2022-12-05 18:45:31,191 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1489, PETRI_DIFFERENCE_MINUEND_PLACES=681, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1559, PETRI_PLACES=698, PETRI_TRANSITIONS=706} [2022-12-05 18:45:31,191 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 22 predicate places. [2022-12-05 18:45:31,192 INFO L495 AbstractCegarLoop]: Abstraction has has 698 places, 706 transitions, 1559 flow [2022-12-05 18:45:31,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 652.2857142857143) internal successors, (4566), 7 states have internal predecessors, (4566), 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 18:45:31,194 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:31,195 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] [2022-12-05 18:45:31,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-05 18:45:31,401 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 18:45:31,402 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:31,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:31,402 INFO L85 PathProgramCache]: Analyzing trace with hash -801080925, now seen corresponding path program 1 times [2022-12-05 18:45:31,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:31,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486668692] [2022-12-05 18:45:31,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:31,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:31,951 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 18:45:31,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:31,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486668692] [2022-12-05 18:45:31,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486668692] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:31,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254318091] [2022-12-05 18:45:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:31,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:31,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:31,956 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 18:45:31,958 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 18:45:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:32,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:32,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:32,788 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:32,788 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 18:45:32,832 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:32,832 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 18:45:32,861 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:32,861 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 18:45:32,880 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:32,880 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 18:45:33,686 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 18:45:33,716 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 18:45:33,764 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 18:45:33,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:33,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254318091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:33,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:33,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:33,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147451541] [2022-12-05 18:45:33,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:33,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:33,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:33,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:33,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:33,774 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-05 18:45:33,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 698 places, 706 transitions, 1559 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:33,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:33,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-05 18:45:33,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:36,197 INFO L130 PetriNetUnfolder]: 2112/9332 cut-off events. [2022-12-05 18:45:36,197 INFO L131 PetriNetUnfolder]: For 1571/1619 co-relation queries the response was YES. [2022-12-05 18:45:36,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14881 conditions, 9332 events. 2112/9332 cut-off events. For 1571/1619 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 86109 event pairs, 230 based on Foata normal form. 64/8802 useless extension candidates. Maximal degree in co-relation 14607. Up to 1278 conditions per place. [2022-12-05 18:45:36,250 INFO L137 encePairwiseOnDemand]: 713/732 looper letters, 176 selfloop transitions, 21 changer transitions 42/814 dead transitions. [2022-12-05 18:45:36,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 710 places, 814 transitions, 2419 flow [2022-12-05 18:45:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:45:36,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:45:36,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 10795 transitions. [2022-12-05 18:45:36,270 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8192926533090468 [2022-12-05 18:45:36,270 INFO L175 Difference]: Start difference. First operand has 698 places, 706 transitions, 1559 flow. Second operand 18 states and 10795 transitions. [2022-12-05 18:45:36,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 710 places, 814 transitions, 2419 flow [2022-12-05 18:45:36,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 704 places, 814 transitions, 2343 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-05 18:45:36,291 INFO L231 Difference]: Finished difference. Result has 711 places, 711 transitions, 1636 flow [2022-12-05 18:45:36,293 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=687, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1636, PETRI_PLACES=711, PETRI_TRANSITIONS=711} [2022-12-05 18:45:36,293 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 35 predicate places. [2022-12-05 18:45:36,293 INFO L495 AbstractCegarLoop]: Abstraction has has 711 places, 711 transitions, 1636 flow [2022-12-05 18:45:36,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:36,296 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:36,297 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] [2022-12-05 18:45:36,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-05 18:45:36,504 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 18:45:36,505 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:36,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:36,505 INFO L85 PathProgramCache]: Analyzing trace with hash 757954403, now seen corresponding path program 2 times [2022-12-05 18:45:36,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:36,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798434405] [2022-12-05 18:45:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:36,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:37,061 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 18:45:37,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:37,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798434405] [2022-12-05 18:45:37,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798434405] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:37,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985318676] [2022-12-05 18:45:37,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:45:37,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:37,068 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 18:45:37,071 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 18:45:37,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 18:45:37,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:37,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:37,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:37,756 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:37,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:37,780 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:37,781 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 18:45:37,806 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:37,807 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 18:45:37,823 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:37,824 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 18:45:38,506 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 18:45:38,528 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 18:45:38,566 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 18:45:38,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:38,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985318676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:38,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:38,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:38,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332535307] [2022-12-05 18:45:38,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:38,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:38,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:38,577 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-05 18:45:38,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 711 places, 711 transitions, 1636 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:38,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:38,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-05 18:45:38,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:41,196 INFO L130 PetriNetUnfolder]: 1842/8392 cut-off events. [2022-12-05 18:45:41,196 INFO L131 PetriNetUnfolder]: For 2152/2248 co-relation queries the response was YES. [2022-12-05 18:45:41,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13426 conditions, 8392 events. 1842/8392 cut-off events. For 2152/2248 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 76384 event pairs, 420 based on Foata normal form. 96/7920 useless extension candidates. Maximal degree in co-relation 13138. Up to 890 conditions per place. [2022-12-05 18:45:41,223 INFO L137 encePairwiseOnDemand]: 712/732 looper letters, 125 selfloop transitions, 17 changer transitions 151/868 dead transitions. [2022-12-05 18:45:41,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 740 places, 868 transitions, 2654 flow [2022-12-05 18:45:41,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-05 18:45:41,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-05 18:45:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 17922 transitions. [2022-12-05 18:45:41,258 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.816120218579235 [2022-12-05 18:45:41,259 INFO L175 Difference]: Start difference. First operand has 711 places, 711 transitions, 1636 flow. Second operand 30 states and 17922 transitions. [2022-12-05 18:45:41,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 740 places, 868 transitions, 2654 flow [2022-12-05 18:45:41,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 727 places, 868 transitions, 2588 flow, removed 6 selfloop flow, removed 13 redundant places. [2022-12-05 18:45:41,285 INFO L231 Difference]: Finished difference. Result has 740 places, 696 transitions, 1563 flow [2022-12-05 18:45:41,287 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1593, PETRI_DIFFERENCE_MINUEND_PLACES=698, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=694, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1563, PETRI_PLACES=740, PETRI_TRANSITIONS=696} [2022-12-05 18:45:41,289 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 64 predicate places. [2022-12-05 18:45:41,289 INFO L495 AbstractCegarLoop]: Abstraction has has 740 places, 696 transitions, 1563 flow [2022-12-05 18:45:41,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:41,292 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:41,292 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] [2022-12-05 18:45:41,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-05 18:45:41,500 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 18:45:41,500 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:41,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:41,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1636478205, now seen corresponding path program 3 times [2022-12-05 18:45:41,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:41,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294794470] [2022-12-05 18:45:41,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:41,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:42,060 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 18:45:42,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:42,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294794470] [2022-12-05 18:45:42,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294794470] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:42,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761637197] [2022-12-05 18:45:42,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 18:45:42,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:42,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:42,063 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 18:45:42,064 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 18:45:42,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-05 18:45:42,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:42,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:42,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:42,725 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:42,726 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 18:45:42,748 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:42,749 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 18:45:42,772 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:42,772 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 18:45:42,789 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:42,789 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 18:45:43,485 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 18:45:43,509 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 18:45:43,550 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 18:45:43,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:43,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761637197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:43,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:43,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:43,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284799950] [2022-12-05 18:45:43,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:43,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:43,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:43,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:43,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:43,560 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-05 18:45:43,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 740 places, 696 transitions, 1563 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:43,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:43,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-05 18:45:43,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:44,944 INFO L130 PetriNetUnfolder]: 1034/4402 cut-off events. [2022-12-05 18:45:44,945 INFO L131 PetriNetUnfolder]: For 3038/3098 co-relation queries the response was YES. [2022-12-05 18:45:44,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7894 conditions, 4402 events. 1034/4402 cut-off events. For 3038/3098 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 29365 event pairs, 284 based on Foata normal form. 16/4036 useless extension candidates. Maximal degree in co-relation 7705. Up to 834 conditions per place. [2022-12-05 18:45:44,966 INFO L137 encePairwiseOnDemand]: 713/732 looper letters, 112 selfloop transitions, 10 changer transitions 90/787 dead transitions. [2022-12-05 18:45:44,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 733 places, 787 transitions, 2395 flow [2022-12-05 18:45:44,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-05 18:45:44,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-05 18:45:44,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 13135 transitions. [2022-12-05 18:45:44,980 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.815635866865375 [2022-12-05 18:45:44,980 INFO L175 Difference]: Start difference. First operand has 740 places, 696 transitions, 1563 flow. Second operand 22 states and 13135 transitions. [2022-12-05 18:45:44,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 733 places, 787 transitions, 2395 flow [2022-12-05 18:45:44,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 706 places, 787 transitions, 2199 flow, removed 64 selfloop flow, removed 27 redundant places. [2022-12-05 18:45:45,002 INFO L231 Difference]: Finished difference. Result has 718 places, 696 transitions, 1548 flow [2022-12-05 18:45:45,003 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1485, PETRI_DIFFERENCE_MINUEND_PLACES=685, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1548, PETRI_PLACES=718, PETRI_TRANSITIONS=696} [2022-12-05 18:45:45,004 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 42 predicate places. [2022-12-05 18:45:45,004 INFO L495 AbstractCegarLoop]: Abstraction has has 718 places, 696 transitions, 1548 flow [2022-12-05 18:45:45,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:45,007 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:45,007 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] [2022-12-05 18:45:45,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:45,215 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 18:45:45,216 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:45,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:45,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1912971135, now seen corresponding path program 4 times [2022-12-05 18:45:45,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:45,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279317823] [2022-12-05 18:45:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:45,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:45,651 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 18:45:45,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:45,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279317823] [2022-12-05 18:45:45,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279317823] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:45,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614974398] [2022-12-05 18:45:45,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-05 18:45:45,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:45,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:45,653 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 18:45:45,656 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 18:45:46,082 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-05 18:45:46,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:46,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:46,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:46,298 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:46,299 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 18:45:46,322 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:46,322 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 18:45:46,344 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:46,345 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 18:45:46,361 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:46,362 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 18:45:47,028 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 18:45:47,076 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 18:45:47,110 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 18:45:47,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:47,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614974398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:47,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:47,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:47,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180486119] [2022-12-05 18:45:47,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:47,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:47,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:47,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:47,121 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-05 18:45:47,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 718 places, 696 transitions, 1548 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:47,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:47,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-05 18:45:47,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:48,531 INFO L130 PetriNetUnfolder]: 884/3802 cut-off events. [2022-12-05 18:45:48,531 INFO L131 PetriNetUnfolder]: For 2350/2358 co-relation queries the response was YES. [2022-12-05 18:45:48,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6527 conditions, 3802 events. 884/3802 cut-off events. For 2350/2358 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 23861 event pairs, 288 based on Foata normal form. 24/3484 useless extension candidates. Maximal degree in co-relation 6232. Up to 594 conditions per place. [2022-12-05 18:45:48,552 INFO L137 encePairwiseOnDemand]: 712/732 looper letters, 108 selfloop transitions, 15 changer transitions 77/775 dead transitions. [2022-12-05 18:45:48,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 728 places, 775 transitions, 2258 flow [2022-12-05 18:45:48,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-05 18:45:48,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-05 18:45:48,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 13717 transitions. [2022-12-05 18:45:48,564 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8147422190544072 [2022-12-05 18:45:48,564 INFO L175 Difference]: Start difference. First operand has 718 places, 696 transitions, 1548 flow. Second operand 23 states and 13717 transitions. [2022-12-05 18:45:48,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 728 places, 775 transitions, 2258 flow [2022-12-05 18:45:48,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 712 places, 775 transitions, 2176 flow, removed 28 selfloop flow, removed 16 redundant places. [2022-12-05 18:45:48,582 INFO L231 Difference]: Finished difference. Result has 719 places, 692 transitions, 1538 flow [2022-12-05 18:45:48,583 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=690, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1538, PETRI_PLACES=719, PETRI_TRANSITIONS=692} [2022-12-05 18:45:48,584 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 43 predicate places. [2022-12-05 18:45:48,584 INFO L495 AbstractCegarLoop]: Abstraction has has 719 places, 692 transitions, 1538 flow [2022-12-05 18:45:48,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:48,586 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:48,587 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] [2022-12-05 18:45:48,602 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 18:45:48,795 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 18:45:48,795 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-12-05 18:45:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash 40526785, now seen corresponding path program 5 times [2022-12-05 18:45:48,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:48,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611954263] [2022-12-05 18:45:48,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:48,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:49,212 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 18:45:49,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:49,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611954263] [2022-12-05 18:45:49,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611954263] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:49,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963193679] [2022-12-05 18:45:49,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-05 18:45:49,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:49,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:49,215 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 18:45:49,217 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 18:45:49,606 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 18:45:49,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:49,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-05 18:45:49,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:49,821 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:49,821 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 18:45:49,850 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:49,851 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 18:45:49,876 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:49,876 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 18:45:49,893 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:49,894 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 18:45:50,447 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 18:45:50,466 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 18:45:50,504 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 18:45:50,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:50,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963193679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:50,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:50,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:50,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280540492] [2022-12-05 18:45:50,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:50,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:50,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:50,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:50,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:50,512 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 732 [2022-12-05 18:45:50,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 719 places, 692 transitions, 1538 flow. Second operand has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:50,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:50,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 732 [2022-12-05 18:45:50,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:51,523 INFO L130 PetriNetUnfolder]: 470/2338 cut-off events. [2022-12-05 18:45:51,523 INFO L131 PetriNetUnfolder]: For 1418/1418 co-relation queries the response was YES. [2022-12-05 18:45:51,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3832 conditions, 2338 events. 470/2338 cut-off events. For 1418/1418 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 11262 event pairs, 110 based on Foata normal form. 16/2148 useless extension candidates. Maximal degree in co-relation 3538. Up to 216 conditions per place. [2022-12-05 18:45:51,533 INFO L137 encePairwiseOnDemand]: 713/732 looper letters, 0 selfloop transitions, 0 changer transitions 725/725 dead transitions. [2022-12-05 18:45:51,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 724 places, 725 transitions, 1943 flow [2022-12-05 18:45:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-05 18:45:51,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-05 18:45:51,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 11319 transitions. [2022-12-05 18:45:51,543 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8138481449525453 [2022-12-05 18:45:51,544 INFO L175 Difference]: Start difference. First operand has 719 places, 692 transitions, 1538 flow. Second operand 19 states and 11319 transitions. [2022-12-05 18:45:51,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 724 places, 725 transitions, 1943 flow [2022-12-05 18:45:51,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 698 places, 725 transitions, 1851 flow, removed 24 selfloop flow, removed 26 redundant places. [2022-12-05 18:45:51,555 INFO L231 Difference]: Finished difference. Result has 698 places, 0 transitions, 0 flow [2022-12-05 18:45:51,556 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=732, PETRI_DIFFERENCE_MINUEND_FLOW=1455, PETRI_DIFFERENCE_MINUEND_PLACES=680, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=690, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=0, PETRI_PLACES=698, PETRI_TRANSITIONS=0} [2022-12-05 18:45:51,557 INFO L294 CegarLoopForPetriNet]: 676 programPoint places, 22 predicate places. [2022-12-05 18:45:51,557 INFO L495 AbstractCegarLoop]: Abstraction has has 698 places, 0 transitions, 0 flow [2022-12-05 18:45:51,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 593.625) internal successors, (9498), 16 states have internal predecessors, (9498), 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 18:45:51,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-05 18:45:51,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-05 18:45:51,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-05 18:45:51,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-05 18:45:51,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-05 18:45:51,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-05 18:45:51,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-05 18:45:51,572 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 18:45:51,771 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 18:45:51,772 INFO L458 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:51,779 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:45:51,779 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:45:51,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:45:51 BasicIcfg [2022-12-05 18:45:51,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:45:51,787 INFO L158 Benchmark]: Toolchain (without parser) took 36507.81ms. Allocated memory was 182.5MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 157.8MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 758.3MB. Max. memory is 8.0GB. [2022-12-05 18:45:51,787 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:45:51,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4417.77ms. Allocated memory was 182.5MB in the beginning and 247.5MB in the end (delta: 65.0MB). Free memory was 157.8MB in the beginning and 130.9MB in the end (delta: 26.9MB). Peak memory consumption was 121.9MB. Max. memory is 8.0GB. [2022-12-05 18:45:51,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 160.28ms. Allocated memory is still 247.5MB. Free memory was 130.9MB in the beginning and 120.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-05 18:45:51,787 INFO L158 Benchmark]: Boogie Preprocessor took 83.84ms. Allocated memory is still 247.5MB. Free memory was 120.0MB in the beginning and 114.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-12-05 18:45:51,788 INFO L158 Benchmark]: RCFGBuilder took 1192.63ms. Allocated memory is still 247.5MB. Free memory was 114.2MB in the beginning and 183.7MB in the end (delta: -69.5MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2022-12-05 18:45:51,788 INFO L158 Benchmark]: TraceAbstraction took 30646.66ms. Allocated memory was 247.5MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 183.2MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 719.2MB. Max. memory is 8.0GB. [2022-12-05 18:45:51,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4417.77ms. Allocated memory was 182.5MB in the beginning and 247.5MB in the end (delta: 65.0MB). Free memory was 157.8MB in the beginning and 130.9MB in the end (delta: 26.9MB). Peak memory consumption was 121.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 160.28ms. Allocated memory is still 247.5MB. Free memory was 130.9MB in the beginning and 120.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.84ms. Allocated memory is still 247.5MB. Free memory was 120.0MB in the beginning and 114.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1192.63ms. Allocated memory is still 247.5MB. Free memory was 114.2MB in the beginning and 183.7MB in the end (delta: -69.5MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * TraceAbstraction took 30646.66ms. Allocated memory was 247.5MB in the beginning and 2.3GB in the end (delta: 2.0GB). Free memory was 183.2MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 719.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 793 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 30.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2033 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2033 mSDsluCounter, 3653 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3098 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5786 IncrementalHoareTripleChecker+Invalid, 5931 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 555 mSDtfsCounter, 5786 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1846 GetRequests, 1584 SyntacticMatches, 0 SemanticMatches, 262 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1636occurred in iteration=7, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 4478 NumberOfCodeBlocks, 4464 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 4461 ConstructedInterpolants, 0 QuantifiedInterpolants, 16155 SizeOfPredicates, 98 NumberOfNonLiveVariables, 6115 ConjunctsInSsa, 207 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:45:51,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...