/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:53:38,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:53:38,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:53:38,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:53:38,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:53:38,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:53:38,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:53:38,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:53:38,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:53:38,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:53:38,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:53:38,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:53:38,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:53:38,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:53:38,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:53:38,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:53:38,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:53:38,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:53:38,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:53:38,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:53:38,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:53:38,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:53:38,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:53:38,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:53:38,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:53:38,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:53:38,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:53:38,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:53:38,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:53:38,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:53:38,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:53:38,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:53:38,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:53:38,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:53:38,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:53:38,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:53:38,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:53:38,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:53:38,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:53:38,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:53:38,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:53:38,895 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:53:38,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:53:38,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:53:38,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:53:38,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:53:38,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:53:38,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:53:38,923 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:53:38,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:53:38,923 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:53:38,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:53:38,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:53:38,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:53:38,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:53:38,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:53:38,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:53:38,924 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:53:38,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:53:38,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:53:38,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:53:38,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:53:38,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:53:38,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:53:38,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:53:38,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:53:38,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:53:38,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:53:38,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:53:38,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:53:38,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:53:38,926 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:53:38,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:53:38,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:53:39,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:53:39,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:53:39,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:53:39,246 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:53:39,246 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:53:39,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-06 16:53:40,363 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:53:40,922 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:53:40,923 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-06 16:53:40,973 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c01c168e0/60d0684411d1408eb3fc16f1b14b3b20/FLAG808117d59 [2022-12-06 16:53:40,988 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c01c168e0/60d0684411d1408eb3fc16f1b14b3b20 [2022-12-06 16:53:40,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:53:40,992 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:53:40,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:53:40,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:53:40,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:53:40,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:53:40" (1/1) ... [2022-12-06 16:53:40,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfba932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:40, skipping insertion in model container [2022-12-06 16:53:40,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:53:40" (1/1) ... [2022-12-06 16:53:41,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:53:41,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:53:41,484 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i[5469,5482] [2022-12-06 16:53:41,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:41,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:41,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:41,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:41,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:41,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:41,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:41,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:41,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:41,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:41,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:41,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:41,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:41,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:41,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:41,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:41,981 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:53:41,993 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:42,004 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:42,024 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:42,268 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:53:42,277 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:53:42,485 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:53:42,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:42,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:42,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:42,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:42,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:42,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:42,862 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:53:42,866 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:53:42,871 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:53:42,984 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:53:42,984 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:53:42,989 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:53:42,990 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:53:43,163 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:53:43,475 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:53:43,483 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:53:43,522 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:53:43,525 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:53:43,683 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:53:43,792 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:53:43,795 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:53:43,895 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:53:44,026 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:53:44,027 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:53:44,027 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:53:44,783 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:53:44,784 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:44,787 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:44,791 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:44,794 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:45,357 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:53:45,361 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:53:45,403 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:53:45,403 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:53:45,405 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:53:45,407 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:53:45,407 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:53:45,407 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:53:45,412 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:53:45,412 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:53:45,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:53:45,467 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:53:45,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i[5469,5482] [2022-12-06 16:53:45,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,501 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:53:45,502 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:45,502 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:45,502 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:53:45,506 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:53:45,507 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:53:45,511 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:53:45,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:53:45,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:53:45,576 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:53:45,576 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:53:45,577 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:53:45,581 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:53:45,582 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:53:45,582 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:53:45,582 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:53:45,589 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:53:45,603 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:53:45,604 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:53:45,607 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:53:45,607 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:53:45,613 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:53:45,617 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:53:45,618 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:53:45,623 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:53:45,626 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:53:45,627 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:53:45,627 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:53:45,699 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:53:45,700 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:45,702 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:45,710 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:45,714 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:53:45,758 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:53:45,759 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:53:45,764 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:53:45,764 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:53:45,765 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:53:45,766 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:53:45,766 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:53:45,767 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:53:45,767 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:53:45,768 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:53:45,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:53:46,171 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:53:46,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46 WrapperNode [2022-12-06 16:53:46,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:53:46,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:53:46,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:53:46,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:53:46,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,380 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 56, statements flattened = 775 [2022-12-06 16:53:46,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:53:46,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:53:46,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:53:46,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:53:46,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:53:46,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:53:46,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:53:46,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:53:46,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (1/1) ... [2022-12-06 16:53:46,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:53:46,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:53:46,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:53:46,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:53:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:53:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 16:53:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:53:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 16:53:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-06 16:53:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-06 16:53:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:53:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:53:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-06 16:53:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-06 16:53:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-06 16:53:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:53:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 16:53:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:53:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:53:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 16:53:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:53:46,565 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:53:47,013 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:53:47,015 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:53:47,733 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:53:47,747 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:53:47,748 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-06 16:53:47,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:53:47 BoogieIcfgContainer [2022-12-06 16:53:47,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:53:47,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:53:47,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:53:47,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:53:47,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:53:40" (1/3) ... [2022-12-06 16:53:47,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455980f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:53:47, skipping insertion in model container [2022-12-06 16:53:47,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:53:46" (2/3) ... [2022-12-06 16:53:47,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455980f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:53:47, skipping insertion in model container [2022-12-06 16:53:47,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:53:47" (3/3) ... [2022-12-06 16:53:47,758 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-06 16:53:47,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:53:47,775 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-06 16:53:47,775 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:53:47,909 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:53:47,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 794 places, 857 transitions, 1730 flow [2022-12-06 16:53:48,197 INFO L130 PetriNetUnfolder]: 70/855 cut-off events. [2022-12-06 16:53:48,198 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:53:48,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 855 events. 70/855 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1433 event pairs, 0 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 653. Up to 9 conditions per place. [2022-12-06 16:53:48,208 INFO L82 GeneralOperation]: Start removeDead. Operand has 794 places, 857 transitions, 1730 flow [2022-12-06 16:53:48,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 784 places, 847 transitions, 1703 flow [2022-12-06 16:53:48,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:53:48,230 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;@789db9fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:53:48,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-06 16:53:48,344 INFO L130 PetriNetUnfolder]: 12/341 cut-off events. [2022-12-06 16:53:48,344 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:53:48,344 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:48,345 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] [2022-12-06 16:53:48,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:53:48,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:48,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1816157891, now seen corresponding path program 1 times [2022-12-06 16:53:48,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:48,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603907259] [2022-12-06 16:53:48,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:48,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:49,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:49,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603907259] [2022-12-06 16:53:49,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603907259] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:49,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:49,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:53:49,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588449717] [2022-12-06 16:53:49,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:49,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:53:49,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:49,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:53:49,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:53:49,373 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 785 out of 857 [2022-12-06 16:53:49,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 784 places, 847 transitions, 1703 flow. Second operand has 9 states, 9 states have (on average 787.0) internal successors, (7083), 9 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:49,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:49,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 785 of 857 [2022-12-06 16:53:49,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:49,783 INFO L130 PetriNetUnfolder]: 37/807 cut-off events. [2022-12-06 16:53:49,783 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-12-06 16:53:49,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 807 events. 37/807 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1285 event pairs, 0 based on Foata normal form. 21/786 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-12-06 16:53:49,792 INFO L137 encePairwiseOnDemand]: 808/857 looper letters, 18 selfloop transitions, 16 changer transitions 1/807 dead transitions. [2022-12-06 16:53:49,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 807 transitions, 1691 flow [2022-12-06 16:53:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:53:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:53:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 12627 transitions. [2022-12-06 16:53:49,834 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9208722287047841 [2022-12-06 16:53:49,837 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 8 predicate places. [2022-12-06 16:53:49,838 INFO L495 AbstractCegarLoop]: Abstraction has has 792 places, 807 transitions, 1691 flow [2022-12-06 16:53:49,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 787.0) internal successors, (7083), 9 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:49,842 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:49,842 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:53:49,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:53:49,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:53:49,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:49,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1867755080, now seen corresponding path program 1 times [2022-12-06 16:53:49,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:49,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106444580] [2022-12-06 16:53:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:49,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:50,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:50,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106444580] [2022-12-06 16:53:50,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106444580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:50,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:50,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:53:50,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246118840] [2022-12-06 16:53:50,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:50,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:53:50,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:50,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:53:50,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:53:50,656 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 774 out of 857 [2022-12-06 16:53:50,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 792 places, 807 transitions, 1691 flow. Second operand has 6 states, 6 states have (on average 778.6666666666666) internal successors, (4672), 6 states have internal predecessors, (4672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:50,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:50,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 774 of 857 [2022-12-06 16:53:50,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:51,217 INFO L130 PetriNetUnfolder]: 122/1751 cut-off events. [2022-12-06 16:53:51,217 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-12-06 16:53:51,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1933 conditions, 1751 events. 122/1751 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6936 event pairs, 20 based on Foata normal form. 0/1621 useless extension candidates. Maximal degree in co-relation 988. Up to 55 conditions per place. [2022-12-06 16:53:51,232 INFO L137 encePairwiseOnDemand]: 847/857 looper letters, 52 selfloop transitions, 9 changer transitions 1/822 dead transitions. [2022-12-06 16:53:51,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 797 places, 822 transitions, 1868 flow [2022-12-06 16:53:51,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 16:53:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 16:53:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 6254 transitions. [2022-12-06 16:53:51,246 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9121936989498249 [2022-12-06 16:53:51,246 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 13 predicate places. [2022-12-06 16:53:51,247 INFO L495 AbstractCegarLoop]: Abstraction has has 797 places, 822 transitions, 1868 flow [2022-12-06 16:53:51,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 778.6666666666666) internal successors, (4672), 6 states have internal predecessors, (4672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:51,254 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:51,254 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] [2022-12-06 16:53:51,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:53:51,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:53:51,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:51,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1675110681, now seen corresponding path program 1 times [2022-12-06 16:53:51,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:51,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400261676] [2022-12-06 16:53:51,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:51,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:51,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:51,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400261676] [2022-12-06 16:53:51,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400261676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:51,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:51,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:53:51,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375565013] [2022-12-06 16:53:51,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:51,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:53:51,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:51,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:53:51,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:53:51,996 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 780 out of 857 [2022-12-06 16:53:52,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 797 places, 822 transitions, 1868 flow. Second operand has 6 states, 6 states have (on average 784.5) internal successors, (4707), 6 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:52,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:52,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 780 of 857 [2022-12-06 16:53:52,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:52,981 INFO L130 PetriNetUnfolder]: 436/4418 cut-off events. [2022-12-06 16:53:52,981 INFO L131 PetriNetUnfolder]: For 457/619 co-relation queries the response was YES. [2022-12-06 16:53:52,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5234 conditions, 4418 events. 436/4418 cut-off events. For 457/619 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 30112 event pairs, 22 based on Foata normal form. 0/4020 useless extension candidates. Maximal degree in co-relation 2642. Up to 124 conditions per place. [2022-12-06 16:53:53,011 INFO L137 encePairwiseOnDemand]: 848/857 looper letters, 90 selfloop transitions, 33 changer transitions 1/892 dead transitions. [2022-12-06 16:53:53,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 808 places, 892 transitions, 2494 flow [2022-12-06 16:53:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:53:53,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:53:53,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9442 transitions. [2022-12-06 16:53:53,030 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9181252430960716 [2022-12-06 16:53:53,031 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 24 predicate places. [2022-12-06 16:53:53,031 INFO L495 AbstractCegarLoop]: Abstraction has has 808 places, 892 transitions, 2494 flow [2022-12-06 16:53:53,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 784.5) internal successors, (4707), 6 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:53,034 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:53,035 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] [2022-12-06 16:53:53,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:53:53,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:53:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:53,036 INFO L85 PathProgramCache]: Analyzing trace with hash 352451334, now seen corresponding path program 1 times [2022-12-06 16:53:53,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:53,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222535783] [2022-12-06 16:53:53,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:53,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:54,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:54,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222535783] [2022-12-06 16:53:54,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222535783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:54,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:54,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:53:54,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569596849] [2022-12-06 16:53:54,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:54,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:53:54,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:54,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:53:54,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:53:54,638 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 745 out of 857 [2022-12-06 16:53:54,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 808 places, 892 transitions, 2494 flow. Second operand has 12 states, 12 states have (on average 749.9166666666666) internal successors, (8999), 12 states have internal predecessors, (8999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:54,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:54,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 745 of 857 [2022-12-06 16:53:54,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:55,921 INFO L130 PetriNetUnfolder]: 416/4373 cut-off events. [2022-12-06 16:53:55,922 INFO L131 PetriNetUnfolder]: For 757/1451 co-relation queries the response was YES. [2022-12-06 16:53:55,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5642 conditions, 4373 events. 416/4373 cut-off events. For 757/1451 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 30031 event pairs, 0 based on Foata normal form. 94/4089 useless extension candidates. Maximal degree in co-relation 2569. Up to 129 conditions per place. [2022-12-06 16:53:55,949 INFO L137 encePairwiseOnDemand]: 843/857 looper letters, 156 selfloop transitions, 63 changer transitions 1/955 dead transitions. [2022-12-06 16:53:55,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 825 places, 955 transitions, 3372 flow [2022-12-06 16:53:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 16:53:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 16:53:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 13523 transitions. [2022-12-06 16:53:55,972 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8766368468818877 [2022-12-06 16:53:55,974 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 41 predicate places. [2022-12-06 16:53:55,974 INFO L495 AbstractCegarLoop]: Abstraction has has 825 places, 955 transitions, 3372 flow [2022-12-06 16:53:55,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 749.9166666666666) internal successors, (8999), 12 states have internal predecessors, (8999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:55,979 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:55,979 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:53:55,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:53:55,980 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:53:55,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:55,980 INFO L85 PathProgramCache]: Analyzing trace with hash 639064403, now seen corresponding path program 1 times [2022-12-06 16:53:55,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:55,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454732730] [2022-12-06 16:53:55,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:55,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:56,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:56,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454732730] [2022-12-06 16:53:56,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454732730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:56,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:53:56,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:53:56,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446001589] [2022-12-06 16:53:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:56,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:53:56,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:56,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:53:56,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:53:56,412 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 797 out of 857 [2022-12-06 16:53:56,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 825 places, 955 transitions, 3372 flow. Second operand has 5 states, 5 states have (on average 798.6) internal successors, (3993), 5 states have internal predecessors, (3993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:56,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:56,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 797 of 857 [2022-12-06 16:53:56,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:53:57,770 INFO L130 PetriNetUnfolder]: 607/6208 cut-off events. [2022-12-06 16:53:57,771 INFO L131 PetriNetUnfolder]: For 1505/2051 co-relation queries the response was YES. [2022-12-06 16:53:57,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8166 conditions, 6208 events. 607/6208 cut-off events. For 1505/2051 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 43109 event pairs, 0 based on Foata normal form. 12/5669 useless extension candidates. Maximal degree in co-relation 2418. Up to 215 conditions per place. [2022-12-06 16:53:57,825 INFO L137 encePairwiseOnDemand]: 850/857 looper letters, 94 selfloop transitions, 6 changer transitions 1/984 dead transitions. [2022-12-06 16:53:57,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 830 places, 984 transitions, 3913 flow [2022-12-06 16:53:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:53:57,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:53:57,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4813 transitions. [2022-12-06 16:53:57,834 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9360171139634383 [2022-12-06 16:53:57,835 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 46 predicate places. [2022-12-06 16:53:57,835 INFO L495 AbstractCegarLoop]: Abstraction has has 830 places, 984 transitions, 3913 flow [2022-12-06 16:53:57,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 798.6) internal successors, (3993), 5 states have internal predecessors, (3993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:57,837 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:53:57,838 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:53:57,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:53:57,838 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:53:57,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:53:57,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1885809191, now seen corresponding path program 1 times [2022-12-06 16:53:57,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:53:57,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272330839] [2022-12-06 16:53:57,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:57,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:53:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:58,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:53:58,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:53:58,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272330839] [2022-12-06 16:53:58,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272330839] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:53:58,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228060289] [2022-12-06 16:53:58,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:53:58,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:53:58,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:53:58,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:53:58,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 16:53:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:53:58,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 16:53:58,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:53:58,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:53:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:53:58,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:53:58,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228060289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:53:58,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:53:58,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-06 16:53:58,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883342267] [2022-12-06 16:53:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:53:58,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:53:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:53:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:53:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:53:58,951 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 857 [2022-12-06 16:53:58,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 984 transitions, 3913 flow. Second operand has 7 states, 7 states have (on average 758.2857142857143) internal successors, (5308), 7 states have internal predecessors, (5308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:53:58,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:53:58,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 857 [2022-12-06 16:53:58,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:03,639 INFO L130 PetriNetUnfolder]: 3905/22004 cut-off events. [2022-12-06 16:54:03,640 INFO L131 PetriNetUnfolder]: For 19298/21087 co-relation queries the response was YES. [2022-12-06 16:54:03,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35027 conditions, 22004 events. 3905/22004 cut-off events. For 19298/21087 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 222524 event pairs, 699 based on Foata normal form. 60/20230 useless extension candidates. Maximal degree in co-relation 8787. Up to 2253 conditions per place. [2022-12-06 16:54:03,874 INFO L137 encePairwiseOnDemand]: 845/857 looper letters, 339 selfloop transitions, 62 changer transitions 1/1187 dead transitions. [2022-12-06 16:54:03,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 1187 transitions, 6629 flow [2022-12-06 16:54:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:54:03,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:54:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 10699 transitions. [2022-12-06 16:54:03,895 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8917319553258877 [2022-12-06 16:54:03,898 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 59 predicate places. [2022-12-06 16:54:03,900 INFO L495 AbstractCegarLoop]: Abstraction has has 843 places, 1187 transitions, 6629 flow [2022-12-06 16:54:03,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 758.2857142857143) internal successors, (5308), 7 states have internal predecessors, (5308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:03,907 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:03,908 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:54:03,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 16:54:04,117 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 [2022-12-06 16:54:04,118 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:54:04,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:04,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1844347868, now seen corresponding path program 1 times [2022-12-06 16:54:04,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:04,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575340918] [2022-12-06 16:54:04,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:04,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:04,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:04,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:04,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575340918] [2022-12-06 16:54:04,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575340918] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:04,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110190758] [2022-12-06 16:54:04,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:04,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:04,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:04,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:54:04,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 16:54:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:05,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:05,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:05,439 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:05,439 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 [2022-12-06 16:54:05,479 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:05,480 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 [2022-12-06 16:54:05,511 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:05,512 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 [2022-12-06 16:54:05,533 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:05,534 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 [2022-12-06 16:54:06,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:54:06,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:54:06,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:54:06,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:06,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110190758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:06,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:06,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:06,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582721632] [2022-12-06 16:54:06,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:06,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:06,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:06,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:06,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:06,324 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-06 16:54:06,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 1187 transitions, 6629 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:06,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:06,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-06 16:54:06,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:15,186 INFO L130 PetriNetUnfolder]: 9308/45199 cut-off events. [2022-12-06 16:54:15,186 INFO L131 PetriNetUnfolder]: For 36552/39614 co-relation queries the response was YES. [2022-12-06 16:54:15,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84991 conditions, 45199 events. 9308/45199 cut-off events. For 36552/39614 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 515970 event pairs, 763 based on Foata normal form. 564/42316 useless extension candidates. Maximal degree in co-relation 24058. Up to 5416 conditions per place. [2022-12-06 16:54:15,598 INFO L137 encePairwiseOnDemand]: 835/857 looper letters, 726 selfloop transitions, 83 changer transitions 1/1530 dead transitions. [2022-12-06 16:54:15,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 862 places, 1530 transitions, 10924 flow [2022-12-06 16:54:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 16:54:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 16:54:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 14147 transitions. [2022-12-06 16:54:15,619 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8253792298716452 [2022-12-06 16:54:15,620 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 78 predicate places. [2022-12-06 16:54:15,620 INFO L495 AbstractCegarLoop]: Abstraction has has 862 places, 1530 transitions, 10924 flow [2022-12-06 16:54:15,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:15,623 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:15,624 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:54:15,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 16:54:15,835 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 [2022-12-06 16:54:15,836 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:54:15,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:15,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1966184858, now seen corresponding path program 2 times [2022-12-06 16:54:15,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:15,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284469529] [2022-12-06 16:54:15,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:16,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:16,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284469529] [2022-12-06 16:54:16,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284469529] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:16,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943185280] [2022-12-06 16:54:16,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:54:16,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:16,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:16,350 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:54:16,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 16:54:16,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 16:54:16,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:54:16,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:16,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:17,069 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:17,070 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 [2022-12-06 16:54:17,102 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:17,102 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 [2022-12-06 16:54:17,136 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:17,136 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 [2022-12-06 16:54:17,157 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:17,158 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 [2022-12-06 16:54:17,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:54:17,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:54:17,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:54:17,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:17,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943185280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:17,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:17,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:17,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352204595] [2022-12-06 16:54:17,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:17,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:17,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:17,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:17,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:17,872 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-06 16:54:17,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 862 places, 1530 transitions, 10924 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:17,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:17,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-06 16:54:17,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:30,263 INFO L130 PetriNetUnfolder]: 11815/57454 cut-off events. [2022-12-06 16:54:30,263 INFO L131 PetriNetUnfolder]: For 60080/68605 co-relation queries the response was YES. [2022-12-06 16:54:30,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122253 conditions, 57454 events. 11815/57454 cut-off events. For 60080/68605 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 690856 event pairs, 746 based on Foata normal form. 1168/54254 useless extension candidates. Maximal degree in co-relation 34618. Up to 7900 conditions per place. [2022-12-06 16:54:30,772 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 941 selfloop transitions, 172 changer transitions 1/1834 dead transitions. [2022-12-06 16:54:30,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 894 places, 1834 transitions, 16094 flow [2022-12-06 16:54:30,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-06 16:54:30,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-06 16:54:30,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 23257 transitions. [2022-12-06 16:54:30,792 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.822354230755631 [2022-12-06 16:54:30,795 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 110 predicate places. [2022-12-06 16:54:30,795 INFO L495 AbstractCegarLoop]: Abstraction has has 894 places, 1834 transitions, 16094 flow [2022-12-06 16:54:30,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:30,798 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:30,798 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:54:30,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 16:54:31,006 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 [2022-12-06 16:54:31,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:54:31,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:31,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1764014174, now seen corresponding path program 3 times [2022-12-06 16:54:31,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:31,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708845256] [2022-12-06 16:54:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:31,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:31,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:31,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708845256] [2022-12-06 16:54:31,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708845256] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:31,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527883283] [2022-12-06 16:54:31,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 16:54:31,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:31,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:31,496 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) [2022-12-06 16:54:31,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 16:54:31,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-06 16:54:31,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:54:31,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:31,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:32,122 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:32,123 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 [2022-12-06 16:54:32,148 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:32,149 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 [2022-12-06 16:54:32,172 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:32,173 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 [2022-12-06 16:54:32,190 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:32,191 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 [2022-12-06 16:54:32,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:54:32,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:54:32,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:54:32,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:32,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527883283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:32,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:32,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:32,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456304778] [2022-12-06 16:54:32,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:32,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:32,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:32,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:32,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:32,879 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-06 16:54:32,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 894 places, 1834 transitions, 16094 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:32,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:32,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-06 16:54:32,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:54:50,467 INFO L130 PetriNetUnfolder]: 15756/75422 cut-off events. [2022-12-06 16:54:50,467 INFO L131 PetriNetUnfolder]: For 106411/126736 co-relation queries the response was YES. [2022-12-06 16:54:50,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182302 conditions, 75422 events. 15756/75422 cut-off events. For 106411/126736 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 954989 event pairs, 1032 based on Foata normal form. 1399/71043 useless extension candidates. Maximal degree in co-relation 51801. Up to 12372 conditions per place. [2022-12-06 16:54:50,966 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 1343 selfloop transitions, 158 changer transitions 1/2222 dead transitions. [2022-12-06 16:54:50,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 2222 transitions, 23775 flow [2022-12-06 16:54:50,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 16:54:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 16:54:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 19774 transitions. [2022-12-06 16:54:50,985 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8240540090015003 [2022-12-06 16:54:50,986 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 137 predicate places. [2022-12-06 16:54:50,986 INFO L495 AbstractCegarLoop]: Abstraction has has 921 places, 2222 transitions, 23775 flow [2022-12-06 16:54:50,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:50,989 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:54:50,989 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:54:51,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 16:54:51,197 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 [2022-12-06 16:54:51,198 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:54:51,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:54:51,198 INFO L85 PathProgramCache]: Analyzing trace with hash 463313794, now seen corresponding path program 4 times [2022-12-06 16:54:51,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:54:51,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086887394] [2022-12-06 16:54:51,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:54:51,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:54:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:54:51,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:54:51,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:54:51,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086887394] [2022-12-06 16:54:51,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086887394] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:54:51,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089494729] [2022-12-06 16:54:51,843 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 16:54:51,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:54:51,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:54:51,848 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) [2022-12-06 16:54:51,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 16:54:52,242 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 16:54:52,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:54:52,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:54:52,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:54:52,544 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:52,544 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 [2022-12-06 16:54:52,563 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:52,564 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 [2022-12-06 16:54:52,583 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:54:52,584 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 [2022-12-06 16:54:52,599 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:54:52,599 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 [2022-12-06 16:54:53,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:54:53,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:54:53,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:54:53,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:54:53,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089494729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:54:53,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:54:53,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:54:53,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080009777] [2022-12-06 16:54:53,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:54:53,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:54:53,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:54:53,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:54:53,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:54:53,208 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-06 16:54:53,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 2222 transitions, 23775 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:54:53,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:54:53,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-06 16:54:53,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:12,772 INFO L130 PetriNetUnfolder]: 16513/79081 cut-off events. [2022-12-06 16:55:12,772 INFO L131 PetriNetUnfolder]: For 143059/174655 co-relation queries the response was YES. [2022-12-06 16:55:13,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212416 conditions, 79081 events. 16513/79081 cut-off events. For 143059/174655 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 1009397 event pairs, 1074 based on Foata normal form. 1747/74803 useless extension candidates. Maximal degree in co-relation 60303. Up to 13595 conditions per place. [2022-12-06 16:55:13,310 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 1447 selfloop transitions, 173 changer transitions 1/2341 dead transitions. [2022-12-06 16:55:13,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 2341 transitions, 28863 flow [2022-12-06 16:55:13,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 16:55:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 16:55:13,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 20476 transitions. [2022-12-06 16:55:13,327 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8238844405101999 [2022-12-06 16:55:13,328 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 165 predicate places. [2022-12-06 16:55:13,328 INFO L495 AbstractCegarLoop]: Abstraction has has 949 places, 2341 transitions, 28863 flow [2022-12-06 16:55:13,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:13,331 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:13,332 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:13,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-06 16:55:13,539 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 [2022-12-06 16:55:13,539 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:55:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1840456970, now seen corresponding path program 5 times [2022-12-06 16:55:13,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:13,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224478503] [2022-12-06 16:55:13,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:13,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:13,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:13,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224478503] [2022-12-06 16:55:13,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224478503] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:13,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499798170] [2022-12-06 16:55:13,960 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-06 16:55:13,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:13,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:13,964 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) [2022-12-06 16:55:13,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 16:55:14,384 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 16:55:14,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:55:14,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:55:14,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:14,590 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:14,590 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 [2022-12-06 16:55:14,615 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:14,615 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 [2022-12-06 16:55:14,639 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:14,639 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 [2022-12-06 16:55:14,652 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:55:14,652 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 [2022-12-06 16:55:15,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:55:15,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:55:15,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:15,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:15,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499798170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:15,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:15,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:55:15,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12948048] [2022-12-06 16:55:15,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:15,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:55:15,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:15,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:55:15,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:55:15,265 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-06 16:55:15,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 2341 transitions, 28863 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:15,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:15,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-06 16:55:15,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:55:37,892 INFO L130 PetriNetUnfolder]: 18659/90019 cut-off events. [2022-12-06 16:55:37,892 INFO L131 PetriNetUnfolder]: For 215543/270503 co-relation queries the response was YES. [2022-12-06 16:55:38,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265139 conditions, 90019 events. 18659/90019 cut-off events. For 215543/270503 co-relation queries the response was YES. Maximal size of possible extension queue 801. Compared 1175744 event pairs, 911 based on Foata normal form. 2398/85630 useless extension candidates. Maximal degree in co-relation 76568. Up to 16105 conditions per place. [2022-12-06 16:55:38,657 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 1543 selfloop transitions, 275 changer transitions 1/2539 dead transitions. [2022-12-06 16:55:38,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 982 places, 2539 transitions, 35779 flow [2022-12-06 16:55:38,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-06 16:55:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-06 16:55:38,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 23969 transitions. [2022-12-06 16:55:38,676 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8226027867389663 [2022-12-06 16:55:38,677 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 198 predicate places. [2022-12-06 16:55:38,677 INFO L495 AbstractCegarLoop]: Abstraction has has 982 places, 2539 transitions, 35779 flow [2022-12-06 16:55:38,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:38,679 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:55:38,679 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:55:38,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-06 16:55:38,887 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 [2022-12-06 16:55:38,888 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:55:38,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:55:38,888 INFO L85 PathProgramCache]: Analyzing trace with hash -126497090, now seen corresponding path program 6 times [2022-12-06 16:55:38,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:55:38,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695948423] [2022-12-06 16:55:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:55:38,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:55:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:55:39,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:55:39,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:55:39,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695948423] [2022-12-06 16:55:39,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695948423] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:55:39,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473956765] [2022-12-06 16:55:39,299 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-06 16:55:39,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:55:39,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:55:39,301 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:55:39,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-06 16:55:39,663 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-06 16:55:39,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:55:39,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-06 16:55:39,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:55:39,814 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:39,815 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 [2022-12-06 16:55:39,839 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:39,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:55:39,859 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:55:39,859 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 [2022-12-06 16:55:39,874 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:55:39,874 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 [2022-12-06 16:55:40,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:55:40,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:55:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:55:40,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:55:40,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473956765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:55:40,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:55:40,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-06 16:55:40,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893486042] [2022-12-06 16:55:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:55:40,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:55:40,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:55:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:55:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-12-06 16:55:40,461 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 857 [2022-12-06 16:55:40,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 982 places, 2539 transitions, 35779 flow. Second operand has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:55:40,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:55:40,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 857 [2022-12-06 16:55:40,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:56:06,898 INFO L130 PetriNetUnfolder]: 22368/107646 cut-off events. [2022-12-06 16:56:06,898 INFO L131 PetriNetUnfolder]: For 316419/389089 co-relation queries the response was YES. [2022-12-06 16:56:07,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343723 conditions, 107646 events. 22368/107646 cut-off events. For 316419/389089 co-relation queries the response was YES. Maximal size of possible extension queue 960. Compared 1453312 event pairs, 709 based on Foata normal form. 2750/102217 useless extension candidates. Maximal degree in co-relation 101969. Up to 20684 conditions per place. [2022-12-06 16:56:07,695 INFO L137 encePairwiseOnDemand]: 834/857 looper letters, 1962 selfloop transitions, 313 changer transitions 1/2995 dead transitions. [2022-12-06 16:56:07,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1009 places, 2995 transitions, 49001 flow [2022-12-06 16:56:07,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-06 16:56:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-06 16:56:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 21156 transitions. [2022-12-06 16:56:07,710 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8228704784130688 [2022-12-06 16:56:07,710 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 225 predicate places. [2022-12-06 16:56:07,711 INFO L495 AbstractCegarLoop]: Abstraction has has 1009 places, 2995 transitions, 49001 flow [2022-12-06 16:56:07,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 699.625) internal successors, (11194), 16 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:07,713 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:07,713 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:07,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-06 16:56:07,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:56:07,924 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:56:07,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:07,924 INFO L85 PathProgramCache]: Analyzing trace with hash -888868379, now seen corresponding path program 1 times [2022-12-06 16:56:07,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:07,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18054509] [2022-12-06 16:56:07,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:07,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:56:08,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 16:56:08,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:56:08,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18054509] [2022-12-06 16:56:08,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18054509] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:56:08,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:56:08,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 16:56:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697274574] [2022-12-06 16:56:08,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:56:08,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:56:08,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:56:08,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:56:08,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:56:08,062 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 810 out of 857 [2022-12-06 16:56:08,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1009 places, 2995 transitions, 49001 flow. Second operand has 3 states, 3 states have (on average 812.3333333333334) internal successors, (2437), 3 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:08,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:56:08,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 810 of 857 [2022-12-06 16:56:08,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:56:49,765 INFO L130 PetriNetUnfolder]: 31706/154820 cut-off events. [2022-12-06 16:56:49,765 INFO L131 PetriNetUnfolder]: For 572077/652014 co-relation queries the response was YES. [2022-12-06 16:56:50,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502292 conditions, 154820 events. 31706/154820 cut-off events. For 572077/652014 co-relation queries the response was YES. Maximal size of possible extension queue 1278. Compared 2232010 event pairs, 1342 based on Foata normal form. 498/143923 useless extension candidates. Maximal degree in co-relation 150443. Up to 30182 conditions per place. [2022-12-06 16:56:50,928 INFO L137 encePairwiseOnDemand]: 855/857 looper letters, 769 selfloop transitions, 1 changer transitions 1/3221 dead transitions. [2022-12-06 16:56:50,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1011 places, 3221 transitions, 57068 flow [2022-12-06 16:56:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:56:50,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:56:50,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2443 transitions. [2022-12-06 16:56:50,932 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9502139245429794 [2022-12-06 16:56:50,932 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 227 predicate places. [2022-12-06 16:56:50,933 INFO L495 AbstractCegarLoop]: Abstraction has has 1011 places, 3221 transitions, 57068 flow [2022-12-06 16:56:50,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 812.3333333333334) internal successors, (2437), 3 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:50,933 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:50,933 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:50,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 16:56:50,934 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:56:50,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:50,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1995219397, now seen corresponding path program 1 times [2022-12-06 16:56:50,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:50,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243091106] [2022-12-06 16:56:50,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:50,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:56:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:56:51,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:56:51,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243091106] [2022-12-06 16:56:51,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243091106] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:56:51,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018622427] [2022-12-06 16:56:51,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:51,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:56:51,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:56:51,478 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:56:51,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-06 16:56:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:56:52,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-06 16:56:52,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:56:52,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:56:52,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:56:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:56:52,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018622427] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:56:52,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:56:52,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2022-12-06 16:56:52,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437736837] [2022-12-06 16:56:52,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:56:52,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:56:52,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:56:52,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:56:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:56:52,231 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 797 out of 857 [2022-12-06 16:56:52,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1011 places, 3221 transitions, 57068 flow. Second operand has 13 states, 13 states have (on average 799.1538461538462) internal successors, (10389), 13 states have internal predecessors, (10389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:52,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:56:52,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 797 of 857 [2022-12-06 16:56:52,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:57:36,968 INFO L130 PetriNetUnfolder]: 31706/154834 cut-off events. [2022-12-06 16:57:36,969 INFO L131 PetriNetUnfolder]: For 635436/715373 co-relation queries the response was YES. [2022-12-06 16:57:37,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504957 conditions, 154834 events. 31706/154834 cut-off events. For 635436/715373 co-relation queries the response was YES. Maximal size of possible extension queue 1278. Compared 2233101 event pairs, 1312 based on Foata normal form. 498/143937 useless extension candidates. Maximal degree in co-relation 151196. Up to 30182 conditions per place. [2022-12-06 16:57:38,610 INFO L137 encePairwiseOnDemand]: 844/857 looper letters, 783 selfloop transitions, 18 changer transitions 1/3235 dead transitions. [2022-12-06 16:57:38,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 3235 transitions, 58770 flow [2022-12-06 16:57:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 16:57:38,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 16:57:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 12004 transitions. [2022-12-06 16:57:38,646 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9338000777907429 [2022-12-06 16:57:38,647 INFO L294 CegarLoopForPetriNet]: 784 programPoint places, 241 predicate places. [2022-12-06 16:57:38,647 INFO L495 AbstractCegarLoop]: Abstraction has has 1025 places, 3235 transitions, 58770 flow [2022-12-06 16:57:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 799.1538461538462) internal successors, (10389), 13 states have internal predecessors, (10389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:57:38,648 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:38,649 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:57:38,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-06 16:57:38,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-06 16:57:38,858 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 16:57:38,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:38,859 INFO L85 PathProgramCache]: Analyzing trace with hash -546043253, now seen corresponding path program 2 times [2022-12-06 16:57:38,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:38,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114474739] [2022-12-06 16:57:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:38,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:57:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:57:39,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:57:39,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114474739] [2022-12-06 16:57:39,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114474739] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:57:39,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588859233] [2022-12-06 16:57:39,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:57:39,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:57:39,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:57:39,923 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 16:57:39,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-06 16:57:40,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 16:57:40,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:57:40,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-06 16:57:40,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:57:40,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-06 16:57:40,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 16:57:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-06 16:57:40,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:57:40,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588859233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:57:40,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:57:40,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 18 [2022-12-06 16:57:40,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102137798] [2022-12-06 16:57:40,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:57:40,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 16:57:40,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:57:40,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 16:57:40,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-12-06 16:57:40,753 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 735 out of 857 [2022-12-06 16:57:40,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 3235 transitions, 58770 flow. Second operand has 11 states, 11 states have (on average 740.4545454545455) internal successors, (8145), 11 states have internal predecessors, (8145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:57:40,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:57:40,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 735 of 857 [2022-12-06 16:57:40,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand