/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_change_pc8736x_gpio_configure.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:46:43,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:46:43,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:46:43,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:46:43,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:46:43,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:46:43,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:46:43,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:46:43,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:46:43,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:46:43,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:46:43,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:46:43,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:46:43,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:46:43,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:46:43,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:46:43,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:46:43,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:46:43,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:46:43,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:46:43,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:46:43,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:46:43,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:46:43,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:46:43,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:46:43,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:46:43,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:46:43,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:46:43,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:46:43,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:46:43,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:46:43,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:46:43,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:46:43,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:46:43,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:46:43,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:46:43,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:46:43,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:46:43,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:46:43,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:46:43,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:46:43,938 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 16:46:43,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:46:43,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:46:43,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:46:43,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:46:43,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:46:43,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:46:43,962 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:46:43,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:46:43,962 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:46:43,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:46:43,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:46:43,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:46:43,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:46:43,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:46:43,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:46:43,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:46:43,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:46:43,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:46:43,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:46:43,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:46:43,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:46:43,965 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:46:43,965 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:46:43,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:46:44,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:46:44,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:46:44,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:46:44,242 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:46:44,243 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:46:44,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2022-12-06 16:46:45,186 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:46:45,686 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:46:45,686 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2022-12-06 16:46:45,739 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a019bc46/9211aa6b98cd4d8588d3cefa02acb973/FLAGf375c8dab [2022-12-06 16:46:45,764 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a019bc46/9211aa6b98cd4d8588d3cefa02acb973 [2022-12-06 16:46:45,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:46:45,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:46:45,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:46:45,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:46:45,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:46:45,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:46:45" (1/1) ... [2022-12-06 16:46:45,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b92965d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:45, skipping insertion in model container [2022-12-06 16:46:45,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:46:45" (1/1) ... [2022-12-06 16:46:45,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:46:45,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:46:46,174 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_change_pc8736x_gpio_configure.i[5469,5482] [2022-12-06 16:46:46,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:46,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:46,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:46,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:46,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:46,480 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:46,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:46,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:46,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:46,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:46,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:46,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:46,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:46,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:46,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:46,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:46,541 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:46:46,551 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:46,560 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:46,575 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:46,769 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:46:46,778 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:46:46,966 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:46:47,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:47,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:47,104 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:47,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:47,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:47,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:47,362 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:46:47,366 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:46:47,370 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:46:47,469 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:46:47,470 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:46:47,472 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:46:47,473 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:46:47,652 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:46:48,001 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:46:48,008 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:46:48,052 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:46:48,055 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:46:48,265 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:46:48,405 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:46:48,410 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:46:48,542 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:46:48,683 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:46:48,683 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:46:48,683 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:46:49,378 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:46:49,378 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:49,386 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:49,390 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:49,396 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:49,885 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:46:49,886 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:46:49,926 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:46:49,927 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:46:49,929 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:46:49,932 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:46:49,932 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:46:49,932 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:46:49,938 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:46:49,939 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:46:49,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:46:49,982 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:46:49,991 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_change_pc8736x_gpio_configure.i[5469,5482] [2022-12-06 16:46:49,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:49,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:49,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:49,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:49,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:49,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:49,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:49,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:49,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:49,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:49,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:49,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:49,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:49,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:49,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:49,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:49,999 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 16:46:50,000 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:50,000 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:50,000 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 16:46:50,003 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:46:50,004 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 16:46:50,006 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 16:46:50,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:50,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:50,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:50,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:50,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:46:50,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:46:50,026 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 16:46:50,026 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 16:46:50,027 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 16:46:50,029 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 16:46:50,029 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:46:50,029 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 16:46:50,030 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 16:46:50,036 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 16:46:50,045 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:46:50,046 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 16:46:50,047 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 16:46:50,047 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 16:46:50,052 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 16:46:50,056 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 16:46:50,056 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 16:46:50,059 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 16:46:50,061 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 16:46:50,062 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 16:46:50,062 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 16:46:50,221 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 16:46:50,222 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:50,223 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:50,225 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:50,240 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 16:46:50,282 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:46:50,282 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-06 16:46:50,286 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-06 16:46:50,286 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-06 16:46:50,287 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-06 16:46:50,288 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:46:50,288 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-06 16:46:50,288 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-06 16:46:50,288 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-06 16:46:50,288 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-06 16:46:50,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:46:50,727 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:46:50,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50 WrapperNode [2022-12-06 16:46:50,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:46:50,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:46:50,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:46:50,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:46:50,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,875 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 75, statements flattened = 867 [2022-12-06 16:46:50,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:46:50,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:46:50,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:46:50,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:46:50,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,919 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:46:50,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:46:50,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:46:50,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:46:50,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (1/1) ... [2022-12-06 16:46:50,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:46:50,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:46:50,981 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 16:46:51,027 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 16:46:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:46:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 16:46:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:46:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-06 16:46:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:46:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2022-12-06 16:46:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 16:46:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:46:51,069 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 16:46:51,424 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:46:51,426 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:46:52,055 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:46:52,075 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:46:52,075 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2022-12-06 16:46:52,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:46:52 BoogieIcfgContainer [2022-12-06 16:46:52,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:46:52,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:46:52,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:46:52,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:46:52,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:46:45" (1/3) ... [2022-12-06 16:46:52,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a07e597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:46:52, skipping insertion in model container [2022-12-06 16:46:52,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:46:50" (2/3) ... [2022-12-06 16:46:52,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a07e597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:46:52, skipping insertion in model container [2022-12-06 16:46:52,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:46:52" (3/3) ... [2022-12-06 16:46:52,082 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2022-12-06 16:46:52,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:46:52,092 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-06 16:46:52,092 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:46:52,187 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:46:52,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 896 places, 963 transitions, 1942 flow [2022-12-06 16:46:52,528 INFO L130 PetriNetUnfolder]: 74/961 cut-off events. [2022-12-06 16:46:52,529 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:46:52,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 970 conditions, 961 events. 74/961 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1929 event pairs, 0 based on Foata normal form. 0/884 useless extension candidates. Maximal degree in co-relation 759. Up to 9 conditions per place. [2022-12-06 16:46:52,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 896 places, 963 transitions, 1942 flow [2022-12-06 16:46:52,548 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 886 places, 953 transitions, 1915 flow [2022-12-06 16:46:52,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:46:52,559 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;@7fd9ab76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:46:52,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-06 16:46:52,629 INFO L130 PetriNetUnfolder]: 13/379 cut-off events. [2022-12-06 16:46:52,629 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:46:52,629 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:52,630 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 16:46:52,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:46:52,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash -363387003, now seen corresponding path program 1 times [2022-12-06 16:46:52,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:52,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290194960] [2022-12-06 16:46:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:52,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:53,538 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 16:46:53,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:53,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290194960] [2022-12-06 16:46:53,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290194960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:53,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:53,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:46:53,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121575040] [2022-12-06 16:46:53,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:53,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:46:53,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:53,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:46:53,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:46:53,584 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 894 out of 963 [2022-12-06 16:46:53,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 886 places, 953 transitions, 1915 flow. Second operand has 9 states, 9 states have (on average 896.1111111111111) internal successors, (8065), 9 states have internal predecessors, (8065), 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 16:46:53,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:53,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 894 of 963 [2022-12-06 16:46:53,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:53,942 INFO L130 PetriNetUnfolder]: 62/1101 cut-off events. [2022-12-06 16:46:53,942 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-12-06 16:46:53,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 1101 events. 62/1101 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2828 event pairs, 1 based on Foata normal form. 28/1061 useless extension candidates. Maximal degree in co-relation 766. Up to 15 conditions per place. [2022-12-06 16:46:53,954 INFO L137 encePairwiseOnDemand]: 917/963 looper letters, 19 selfloop transitions, 16 changer transitions 1/917 dead transitions. [2022-12-06 16:46:53,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 895 places, 917 transitions, 1913 flow [2022-12-06 16:46:53,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:46:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:46:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 14369 transitions. [2022-12-06 16:46:53,990 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.932567497403946 [2022-12-06 16:46:53,993 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 9 predicate places. [2022-12-06 16:46:53,993 INFO L495 AbstractCegarLoop]: Abstraction has has 895 places, 917 transitions, 1913 flow [2022-12-06 16:46:53,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 896.1111111111111) internal successors, (8065), 9 states have internal predecessors, (8065), 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 16:46:53,998 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:53,998 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 16:46:53,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:46:53,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:46:53,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:53,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1858368299, now seen corresponding path program 1 times [2022-12-06 16:46:53,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:53,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031588573] [2022-12-06 16:46:53,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:54,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:54,514 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 16:46:54,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:54,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031588573] [2022-12-06 16:46:54,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031588573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:54,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:54,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:46:54,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648690862] [2022-12-06 16:46:54,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:54,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:46:54,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:54,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:46:54,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:46:54,520 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 885 out of 963 [2022-12-06 16:46:54,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 895 places, 917 transitions, 1913 flow. Second operand has 6 states, 6 states have (on average 889.6666666666666) internal successors, (5338), 6 states have internal predecessors, (5338), 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 16:46:54,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:54,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 885 of 963 [2022-12-06 16:46:54,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:54,970 INFO L130 PetriNetUnfolder]: 158/2159 cut-off events. [2022-12-06 16:46:54,970 INFO L131 PetriNetUnfolder]: For 52/58 co-relation queries the response was YES. [2022-12-06 16:46:54,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2329 conditions, 2159 events. 158/2159 cut-off events. For 52/58 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 9062 event pairs, 14 based on Foata normal form. 0/1991 useless extension candidates. Maximal degree in co-relation 1148. Up to 48 conditions per place. [2022-12-06 16:46:54,989 INFO L137 encePairwiseOnDemand]: 953/963 looper letters, 50 selfloop transitions, 9 changer transitions 1/931 dead transitions. [2022-12-06 16:46:54,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 900 places, 931 transitions, 2086 flow [2022-12-06 16:46:54,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 16:46:54,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 16:46:54,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7140 transitions. [2022-12-06 16:46:55,000 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.926791277258567 [2022-12-06 16:46:55,003 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 14 predicate places. [2022-12-06 16:46:55,004 INFO L495 AbstractCegarLoop]: Abstraction has has 900 places, 931 transitions, 2086 flow [2022-12-06 16:46:55,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 889.6666666666666) internal successors, (5338), 6 states have internal predecessors, (5338), 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 16:46:55,007 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:55,007 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:46:55,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:46:55,007 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:46:55,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:55,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1289087035, now seen corresponding path program 1 times [2022-12-06 16:46:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:55,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949165717] [2022-12-06 16:46:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:55,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:55,396 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 16:46:55,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:55,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949165717] [2022-12-06 16:46:55,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949165717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:55,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:46:55,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:46:55,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368854696] [2022-12-06 16:46:55,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:55,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:46:55,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:55,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:46:55,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:46:55,450 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 906 out of 963 [2022-12-06 16:46:55,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 900 places, 931 transitions, 2086 flow. Second operand has 5 states, 5 states have (on average 907.6) internal successors, (4538), 5 states have internal predecessors, (4538), 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 16:46:55,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:55,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 906 of 963 [2022-12-06 16:46:55,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:46:56,000 INFO L130 PetriNetUnfolder]: 225/2923 cut-off events. [2022-12-06 16:46:56,000 INFO L131 PetriNetUnfolder]: For 155/173 co-relation queries the response was YES. [2022-12-06 16:46:56,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3199 conditions, 2923 events. 225/2923 cut-off events. For 155/173 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 12925 event pairs, 21 based on Foata normal form. 0/2683 useless extension candidates. Maximal degree in co-relation 1408. Up to 53 conditions per place. [2022-12-06 16:46:56,027 INFO L137 encePairwiseOnDemand]: 956/963 looper letters, 31 selfloop transitions, 6 changer transitions 1/939 dead transitions. [2022-12-06 16:46:56,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 905 places, 939 transitions, 2205 flow [2022-12-06 16:46:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:46:56,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:46:56,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5469 transitions. [2022-12-06 16:46:56,034 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.946521287642783 [2022-12-06 16:46:56,035 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 19 predicate places. [2022-12-06 16:46:56,035 INFO L495 AbstractCegarLoop]: Abstraction has has 905 places, 939 transitions, 2205 flow [2022-12-06 16:46:56,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 907.6) internal successors, (4538), 5 states have internal predecessors, (4538), 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 16:46:56,038 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:46:56,038 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 16:46:56,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:46:56,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:46:56,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:46:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2025320207, now seen corresponding path program 1 times [2022-12-06 16:46:56,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:46:56,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891122120] [2022-12-06 16:46:56,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:56,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:46:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:56,447 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 16:46:56,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:46:56,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891122120] [2022-12-06 16:46:56,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891122120] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:46:56,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736320901] [2022-12-06 16:46:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:46:56,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:46:56,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:46:56,469 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 16:46:56,474 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 16:46:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:46:56,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 16:46:56,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:46:56,936 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 16:46:56,964 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 16:46:56,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:46:56,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736320901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:46:56,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:46:56,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-06 16:46:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317218938] [2022-12-06 16:46:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:46:56,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:46:56,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:46:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:46:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:46:56,970 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 963 [2022-12-06 16:46:56,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 905 places, 939 transitions, 2205 flow. Second operand has 7 states, 7 states have (on average 868.2857142857143) internal successors, (6078), 7 states have internal predecessors, (6078), 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 16:46:56,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:46:56,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 963 [2022-12-06 16:46:56,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:47:00,664 INFO L130 PetriNetUnfolder]: 2599/18443 cut-off events. [2022-12-06 16:47:00,664 INFO L131 PetriNetUnfolder]: For 4310/4915 co-relation queries the response was YES. [2022-12-06 16:47:00,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22961 conditions, 18443 events. 2599/18443 cut-off events. For 4310/4915 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 191206 event pairs, 463 based on Foata normal form. 0/16814 useless extension candidates. Maximal degree in co-relation 7225. Up to 1233 conditions per place. [2022-12-06 16:47:00,853 INFO L137 encePairwiseOnDemand]: 950/963 looper letters, 182 selfloop transitions, 49 changer transitions 1/1086 dead transitions. [2022-12-06 16:47:00,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 918 places, 1086 transitions, 3503 flow [2022-12-06 16:47:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:47:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:47:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 12242 transitions. [2022-12-06 16:47:00,869 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.908025515502151 [2022-12-06 16:47:00,871 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 32 predicate places. [2022-12-06 16:47:00,871 INFO L495 AbstractCegarLoop]: Abstraction has has 918 places, 1086 transitions, 3503 flow [2022-12-06 16:47:00,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 868.2857142857143) internal successors, (6078), 7 states have internal predecessors, (6078), 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 16:47:00,874 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:47:00,875 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 16:47:00,896 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 16:47:01,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:47:01,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:47:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:47:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1169067245, now seen corresponding path program 1 times [2022-12-06 16:47:01,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:47:01,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360966514] [2022-12-06 16:47:01,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:47:01,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:47:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:47:01,491 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 16:47:01,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:47:01,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360966514] [2022-12-06 16:47:01,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360966514] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:47:01,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131967572] [2022-12-06 16:47:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:47:01,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:47:01,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:47:01,510 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 16:47:01,511 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 16:47:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:47:01,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-06 16:47:01,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:47:02,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:47:02,488 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 16:47:02,519 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 16:47:02,551 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 16:47:02,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:47:02,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131967572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:47:02,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:47:02,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-12-06 16:47:02,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538743211] [2022-12-06 16:47:02,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:47:02,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:47:02,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:47:02,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:47:02,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-12-06 16:47:02,558 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 858 out of 963 [2022-12-06 16:47:02,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 1086 transitions, 3503 flow. Second operand has 12 states, 12 states have (on average 861.5) internal successors, (10338), 12 states have internal predecessors, (10338), 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 16:47:02,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:47:02,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 858 of 963 [2022-12-06 16:47:02,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:47:09,681 INFO L130 PetriNetUnfolder]: 5022/34008 cut-off events. [2022-12-06 16:47:09,681 INFO L131 PetriNetUnfolder]: For 7598/8406 co-relation queries the response was YES. [2022-12-06 16:47:09,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45631 conditions, 34008 events. 5022/34008 cut-off events. For 7598/8406 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 377749 event pairs, 193 based on Foata normal form. 120/31508 useless extension candidates. Maximal degree in co-relation 15405. Up to 2031 conditions per place. [2022-12-06 16:47:09,863 INFO L137 encePairwiseOnDemand]: 947/963 looper letters, 353 selfloop transitions, 112 changer transitions 1/1315 dead transitions. [2022-12-06 16:47:09,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 1315 transitions, 5534 flow [2022-12-06 16:47:09,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-06 16:47:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-06 16:47:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 31164 transitions. [2022-12-06 16:47:09,894 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8989269643475251 [2022-12-06 16:47:09,896 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 67 predicate places. [2022-12-06 16:47:09,897 INFO L495 AbstractCegarLoop]: Abstraction has has 953 places, 1315 transitions, 5534 flow [2022-12-06 16:47:09,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 861.5) internal successors, (10338), 12 states have internal predecessors, (10338), 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 16:47:09,911 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:47:09,911 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 16:47:09,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 16:47:10,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:47:10,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:47:10,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:47:10,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1204473059, now seen corresponding path program 1 times [2022-12-06 16:47:10,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:47:10,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002765822] [2022-12-06 16:47:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:47:10,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:47:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:47:10,520 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 16:47:10,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:47:10,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002765822] [2022-12-06 16:47:10,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002765822] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:47:10,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337562134] [2022-12-06 16:47:10,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:47:10,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:47:10,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:47:10,523 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 16:47:10,525 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 16:47:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:47:10,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-06 16:47:10,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:47:10,999 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 16:47:10,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:47:11,083 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 16:47:11,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337562134] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:47:11,084 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:47:11,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2022-12-06 16:47:11,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044735853] [2022-12-06 16:47:11,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:47:11,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:47:11,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:47:11,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:47:11,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:47:11,090 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 906 out of 963 [2022-12-06 16:47:11,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 1315 transitions, 5534 flow. Second operand has 12 states, 12 states have (on average 908.0) internal successors, (10896), 12 states have internal predecessors, (10896), 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 16:47:11,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:47:11,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 906 of 963 [2022-12-06 16:47:11,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:47:17,378 INFO L130 PetriNetUnfolder]: 5002/33755 cut-off events. [2022-12-06 16:47:17,379 INFO L131 PetriNetUnfolder]: For 10225/10935 co-relation queries the response was YES. [2022-12-06 16:47:17,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45858 conditions, 33755 events. 5002/33755 cut-off events. For 10225/10935 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 374769 event pairs, 191 based on Foata normal form. 30/31181 useless extension candidates. Maximal degree in co-relation 15535. Up to 2033 conditions per place. [2022-12-06 16:47:17,533 INFO L137 encePairwiseOnDemand]: 950/963 looper letters, 117 selfloop transitions, 18 changer transitions 1/1329 dead transitions. [2022-12-06 16:47:17,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 967 places, 1329 transitions, 5876 flow [2022-12-06 16:47:17,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 16:47:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 16:47:17,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 13641 transitions. [2022-12-06 16:47:17,540 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9443406022845275 [2022-12-06 16:47:17,543 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 81 predicate places. [2022-12-06 16:47:17,543 INFO L495 AbstractCegarLoop]: Abstraction has has 967 places, 1329 transitions, 5876 flow [2022-12-06 16:47:17,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 908.0) internal successors, (10896), 12 states have internal predecessors, (10896), 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 16:47:17,545 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:47:17,546 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 16:47:17,566 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 16:47:17,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:47:17,754 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:47:17,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:47:17,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1474275859, now seen corresponding path program 2 times [2022-12-06 16:47:17,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:47:17,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858492596] [2022-12-06 16:47:17,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:47:17,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:47:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:47:18,298 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 16:47:18,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:47:18,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858492596] [2022-12-06 16:47:18,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858492596] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:47:18,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072695298] [2022-12-06 16:47:18,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:47:18,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:47:18,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:47:18,300 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 16:47:18,302 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 16:47:18,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 16:47:18,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:47:18,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-06 16:47:18,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:47:18,875 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 16:47:18,901 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 16:47:18,958 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 16:47:18,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:47:18,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072695298] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:47:18,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:47:18,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2022-12-06 16:47:18,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766538179] [2022-12-06 16:47:18,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:47:18,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 16:47:18,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:47:18,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 16:47:18,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-12-06 16:47:18,963 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 845 out of 963 [2022-12-06 16:47:18,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 967 places, 1329 transitions, 5876 flow. Second operand has 11 states, 11 states have (on average 850.4545454545455) internal successors, (9355), 11 states have internal predecessors, (9355), 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 16:47:18,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:47:18,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 845 of 963 [2022-12-06 16:47:18,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:47:35,861 INFO L130 PetriNetUnfolder]: 13070/80037 cut-off events. [2022-12-06 16:47:35,861 INFO L131 PetriNetUnfolder]: For 57615/59735 co-relation queries the response was YES. [2022-12-06 16:47:36,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125602 conditions, 80037 events. 13070/80037 cut-off events. For 57615/59735 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 1056463 event pairs, 1119 based on Foata normal form. 98/74312 useless extension candidates. Maximal degree in co-relation 44552. Up to 6719 conditions per place. [2022-12-06 16:47:36,435 INFO L137 encePairwiseOnDemand]: 946/963 looper letters, 573 selfloop transitions, 57 changer transitions 455/2008 dead transitions. [2022-12-06 16:47:36,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 996 places, 2008 transitions, 14955 flow [2022-12-06 16:47:36,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-06 16:47:36,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-06 16:47:36,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 25624 transitions. [2022-12-06 16:47:36,487 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8869505019037729 [2022-12-06 16:47:36,488 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 110 predicate places. [2022-12-06 16:47:36,488 INFO L495 AbstractCegarLoop]: Abstraction has has 996 places, 2008 transitions, 14955 flow [2022-12-06 16:47:36,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 850.4545454545455) internal successors, (9355), 11 states have internal predecessors, (9355), 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 16:47:36,491 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:47:36,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:47:36,515 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 16:47:36,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:47:36,700 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:47:36,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:47:36,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1353624945, now seen corresponding path program 1 times [2022-12-06 16:47:36,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:47:36,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652550439] [2022-12-06 16:47:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:47:36,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:47:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:47:37,612 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 16:47:37,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:47:37,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652550439] [2022-12-06 16:47:37,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652550439] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:47:37,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670167267] [2022-12-06 16:47:37,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:47:37,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:47:37,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:47:37,615 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 16:47:37,617 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 16:47:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:47:38,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-06 16:47:38,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:47:39,234 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 16:47:39,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:47:39,264 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 16:47:39,295 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 16:47:39,352 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 16:47:39,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:47:39,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670167267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:47:39,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:47:39,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [10] total 24 [2022-12-06 16:47:39,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104155921] [2022-12-06 16:47:39,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:47:39,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:47:39,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:47:39,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:47:39,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-12-06 16:47:39,361 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 840 out of 963 [2022-12-06 16:47:39,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 996 places, 2008 transitions, 14955 flow. Second operand has 16 states, 16 states have (on average 844.0625) internal successors, (13505), 16 states have internal predecessors, (13505), 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 16:47:39,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:47:39,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 840 of 963 [2022-12-06 16:47:39,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:48:10,171 INFO L130 PetriNetUnfolder]: 19760/123310 cut-off events. [2022-12-06 16:48:10,172 INFO L131 PetriNetUnfolder]: For 101503/135622 co-relation queries the response was YES. [2022-12-06 16:48:10,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210154 conditions, 123310 events. 19760/123310 cut-off events. For 101503/135622 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 1774317 event pairs, 1447 based on Foata normal form. 2179/116676 useless extension candidates. Maximal degree in co-relation 74769. Up to 10812 conditions per place. [2022-12-06 16:48:10,856 INFO L137 encePairwiseOnDemand]: 943/963 looper letters, 944 selfloop transitions, 92 changer transitions 980/2901 dead transitions. [2022-12-06 16:48:10,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1029 places, 2901 transitions, 28749 flow [2022-12-06 16:48:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-06 16:48:10,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-06 16:48:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 28950 transitions. [2022-12-06 16:48:10,901 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.884185449880887 [2022-12-06 16:48:10,904 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 143 predicate places. [2022-12-06 16:48:10,904 INFO L495 AbstractCegarLoop]: Abstraction has has 1029 places, 2901 transitions, 28749 flow [2022-12-06 16:48:10,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 844.0625) internal successors, (13505), 16 states have internal predecessors, (13505), 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 16:48:10,907 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:48:10,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:48:10,927 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 16:48:11,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:48:11,116 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:48:11,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:48:11,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1699604615, now seen corresponding path program 1 times [2022-12-06 16:48:11,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:48:11,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975181917] [2022-12-06 16:48:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:48:11,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:48:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:48:11,289 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 16:48:11,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:48:11,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975181917] [2022-12-06 16:48:11,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975181917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:48:11,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:48:11,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 16:48:11,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611463569] [2022-12-06 16:48:11,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:48:11,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:48:11,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:48:11,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:48:11,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:48:11,292 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 919 out of 963 [2022-12-06 16:48:11,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 2901 transitions, 28749 flow. Second operand has 3 states, 3 states have (on average 921.6666666666666) internal successors, (2765), 3 states have internal predecessors, (2765), 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 16:48:11,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:48:11,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 919 of 963 [2022-12-06 16:48:11,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:48:58,125 INFO L130 PetriNetUnfolder]: 30545/196256 cut-off events. [2022-12-06 16:48:58,126 INFO L131 PetriNetUnfolder]: For 205172/253331 co-relation queries the response was YES. [2022-12-06 16:48:59,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339621 conditions, 196256 events. 30545/196256 cut-off events. For 205172/253331 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 3078293 event pairs, 1908 based on Foata normal form. 247/182721 useless extension candidates. Maximal degree in co-relation 120344. Up to 15664 conditions per place. [2022-12-06 16:48:59,664 INFO L137 encePairwiseOnDemand]: 961/963 looper letters, 358 selfloop transitions, 1 changer transitions 1376/3406 dead transitions. [2022-12-06 16:48:59,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 3406 transitions, 41242 flow [2022-12-06 16:48:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:48:59,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:48:59,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2772 transitions. [2022-12-06 16:48:59,666 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9595015576323987 [2022-12-06 16:48:59,667 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 145 predicate places. [2022-12-06 16:48:59,667 INFO L495 AbstractCegarLoop]: Abstraction has has 1031 places, 3406 transitions, 41242 flow [2022-12-06 16:48:59,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 921.6666666666666) internal successors, (2765), 3 states have internal predecessors, (2765), 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 16:48:59,668 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:48:59,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:48:59,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:48:59,668 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:48:59,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:48:59,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1015461111, now seen corresponding path program 2 times [2022-12-06 16:48:59,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:48:59,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708144466] [2022-12-06 16:48:59,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:48:59,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:48:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:49:00,598 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 16:49:00,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:49:00,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708144466] [2022-12-06 16:49:00,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708144466] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:49:00,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141581536] [2022-12-06 16:49:00,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:49:00,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:49:00,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:49:00,600 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 16:49:00,667 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 16:49:01,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 16:49:01,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:49:01,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-06 16:49:01,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:49:02,118 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 16:49:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:49:02,152 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 16:49:02,194 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 16:49:02,271 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 16:49:02,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:49:02,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141581536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:49:02,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:49:02,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2022-12-06 16:49:02,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389388355] [2022-12-06 16:49:02,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:49:02,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:49:02,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:49:02,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:49:02,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2022-12-06 16:49:02,279 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 840 out of 963 [2022-12-06 16:49:02,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1031 places, 3406 transitions, 41242 flow. Second operand has 16 states, 16 states have (on average 844.0625) internal successors, (13505), 16 states have internal predecessors, (13505), 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 16:49:02,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:49:02,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 840 of 963 [2022-12-06 16:49:02,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:50:30,034 INFO L130 PetriNetUnfolder]: 44370/292518 cut-off events. [2022-12-06 16:50:30,034 INFO L131 PetriNetUnfolder]: For 369573/902949 co-relation queries the response was YES. [2022-12-06 16:50:31,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554451 conditions, 292518 events. 44370/292518 cut-off events. For 369573/902949 co-relation queries the response was YES. Maximal size of possible extension queue 2268. Compared 4875021 event pairs, 2195 based on Foata normal form. 9698/282472 useless extension candidates. Maximal degree in co-relation 195165. Up to 27264 conditions per place. [2022-12-06 16:50:31,985 INFO L137 encePairwiseOnDemand]: 942/963 looper letters, 1471 selfloop transitions, 179 changer transitions 2471/5006 dead transitions. [2022-12-06 16:50:31,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1086 places, 5006 transitions, 74370 flow [2022-12-06 16:50:31,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-06 16:50:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2022-12-06 16:50:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 47599 transitions. [2022-12-06 16:50:32,045 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.882639816051031 [2022-12-06 16:50:32,046 INFO L294 CegarLoopForPetriNet]: 886 programPoint places, 200 predicate places. [2022-12-06 16:50:32,046 INFO L495 AbstractCegarLoop]: Abstraction has has 1086 places, 5006 transitions, 74370 flow [2022-12-06 16:50:32,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 844.0625) internal successors, (13505), 16 states have internal predecessors, (13505), 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 16:50:32,049 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:50:32,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:50:32,069 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 16:50:32,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:50:32,257 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-06 16:50:32,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:50:32,257 INFO L85 PathProgramCache]: Analyzing trace with hash 456434983, now seen corresponding path program 3 times [2022-12-06 16:50:32,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:50:32,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416323201] [2022-12-06 16:50:32,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:50:32,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:50:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:50:32,915 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 16:50:32,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:50:32,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416323201] [2022-12-06 16:50:32,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416323201] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:50:32,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108043160] [2022-12-06 16:50:32,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 16:50:32,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:50:32,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:50:32,920 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 16:50:32,927 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 16:50:33,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-06 16:50:33,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:50:33,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-06 16:50:33,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:50:34,755 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 16:50:34,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:50:34,788 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 16:50:34,814 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 16:50:34,882 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 16:50:34,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 16:50:34,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108043160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:50:34,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 16:50:34,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2022-12-06 16:50:34,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260400052] [2022-12-06 16:50:34,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:50:34,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:50:34,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:50:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:50:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2022-12-06 16:50:34,903 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 840 out of 963 [2022-12-06 16:50:34,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1086 places, 5006 transitions, 74370 flow. Second operand has 16 states, 16 states have (on average 844.0625) internal successors, (13505), 16 states have internal predecessors, (13505), 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 16:50:34,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:50:34,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 840 of 963 [2022-12-06 16:50:34,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand