/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:12:28,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:12:28,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:12:28,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:12:28,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:12:28,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:12:28,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:12:28,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:12:28,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:12:28,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:12:28,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:12:28,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:12:28,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:12:28,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:12:28,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:12:28,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:12:29,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:12:29,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:12:29,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:12:29,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:12:29,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:12:29,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:12:29,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:12:29,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:12:29,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:12:29,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:12:29,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:12:29,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:12:29,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:12:29,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:12:29,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:12:29,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:12:29,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:12:29,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:12:29,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:12:29,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:12:29,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:12:29,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:12:29,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:12:29,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:12:29,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:12:29,021 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 [2022-12-11 19:12:29,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:12:29,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:12:29,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:12:29,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:12:29,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:12:29,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:12:29,049 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:12:29,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:12:29,049 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:12:29,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:12:29,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:12:29,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:12:29,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:12:29,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:12:29,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:12:29,050 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:12:29,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:12:29,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:12:29,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:12:29,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:12:29,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:12:29,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:12:29,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:12:29,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:12:29,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:12:29,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:12:29,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:12:29,052 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:12:29,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:12:29,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:12:29,052 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:12:29,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:12:29,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:12:29,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:12:29,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:12:29,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:12:29,341 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:12:29,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2022-12-11 19:12:30,330 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:12:30,688 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:12:30,688 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2022-12-11 19:12:30,715 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b99333f3/762aa8a24686455eaba83401c775390a/FLAG367065aaf [2022-12-11 19:12:30,726 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b99333f3/762aa8a24686455eaba83401c775390a [2022-12-11 19:12:30,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:12:30,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:12:30,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:12:30,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:12:30,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:12:30,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:12:30" (1/1) ... [2022-12-11 19:12:30,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658f2a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:30, skipping insertion in model container [2022-12-11 19:12:30,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:12:30" (1/1) ... [2022-12-11 19:12:30,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:12:30,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:12:31,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i[5469,5482] [2022-12-11 19:12:31,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,399 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-11 19:12:31,407 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:12:31,412 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:12:31,422 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:12:31,527 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:12:31,532 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:12:31,626 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-11 19:12:31,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:31,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:31,897 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-11 19:12:31,899 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-11 19:12:31,901 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-11 19:12:31,962 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-11 19:12:31,962 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:12:31,965 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-11 19:12:31,966 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:12:32,063 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-11 19:12:32,308 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:12:32,315 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:12:32,350 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-11 19:12:32,353 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-11 19:12:32,484 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-11 19:12:32,574 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-11 19:12:32,576 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-11 19:12:32,656 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-11 19:12:32,752 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-11 19:12:32,752 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-11 19:12:32,752 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-11 19:12:33,391 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-11 19:12:33,391 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:12:33,393 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:12:33,396 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:12:33,398 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:12:33,768 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 19:12:33,768 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 19:12:33,790 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-11 19:12:33,790 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-11 19:12:33,791 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-11 19:12:33,792 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 19:12:33,792 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-11 19:12:33,792 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-11 19:12:33,795 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 19:12:33,795 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-11 19:12:33,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:12:33,828 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:12:33,838 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i[5469,5482] [2022-12-11 19:12:33,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,847 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-11 19:12:33,847 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:12:33,848 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:12:33,848 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:12:33,852 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:12:33,852 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:12:33,854 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-11 19:12:33,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:12:33,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:12:33,870 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-11 19:12:33,870 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-11 19:12:33,870 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-11 19:12:33,873 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-11 19:12:33,873 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:12:33,873 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-11 19:12:33,873 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:12:33,879 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-11 19:12:33,888 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:12:33,889 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:12:33,891 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-11 19:12:33,891 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-11 19:12:33,898 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-11 19:12:33,922 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-11 19:12:33,923 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-11 19:12:33,927 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-11 19:12:33,931 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-11 19:12:33,932 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-11 19:12:33,932 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-11 19:12:33,997 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-11 19:12:33,998 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:12:34,000 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:12:34,006 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:12:34,010 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:12:34,048 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 19:12:34,048 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 19:12:34,054 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-11 19:12:34,054 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-11 19:12:34,055 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-11 19:12:34,056 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 19:12:34,057 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-11 19:12:34,057 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-11 19:12:34,057 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 19:12:34,058 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-11 19:12:34,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:12:34,520 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:12:34,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34 WrapperNode [2022-12-11 19:12:34,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:12:34,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:12:34,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:12:34,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:12:34,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,703 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 51, statements flattened = 725 [2022-12-11 19:12:34,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:12:34,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:12:34,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:12:34,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:12:34,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,765 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:12:34,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:12:34,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:12:34,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:12:34,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (1/1) ... [2022-12-11 19:12:34,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:12:34,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:34,829 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) [2022-12-11 19:12:34,858 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 [2022-12-11 19:12:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 19:12:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-11 19:12:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:12:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-11 19:12:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-11 19:12:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-11 19:12:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:12:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:12:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-11 19:12:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:12:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-11 19:12:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:12:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:12:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-11 19:12:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-11 19:12:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-11 19:12:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:12:34,889 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:12:35,324 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:12:35,326 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:12:36,005 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:12:36,018 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:12:36,018 INFO L302 CfgBuilder]: Removed 25 assume(true) statements. [2022-12-11 19:12:36,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:12:36 BoogieIcfgContainer [2022-12-11 19:12:36,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:12:36,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:12:36,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:12:36,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:12:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:12:30" (1/3) ... [2022-12-11 19:12:36,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe7f200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:12:36, skipping insertion in model container [2022-12-11 19:12:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:34" (2/3) ... [2022-12-11 19:12:36,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe7f200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:12:36, skipping insertion in model container [2022-12-11 19:12:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:12:36" (3/3) ... [2022-12-11 19:12:36,028 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_current_pc8736x_gpio_set.i [2022-12-11 19:12:36,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:12:36,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-11 19:12:36,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:12:36,150 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 19:12:36,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 741 places, 798 transitions, 1612 flow [2022-12-11 19:12:36,353 INFO L130 PetriNetUnfolder]: 64/796 cut-off events. [2022-12-11 19:12:36,353 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 19:12:36,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 796 events. 64/796 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1260 event pairs, 0 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 719. Up to 9 conditions per place. [2022-12-11 19:12:36,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 741 places, 798 transitions, 1612 flow [2022-12-11 19:12:36,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 731 places, 788 transitions, 1585 flow [2022-12-11 19:12:36,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:12:36,379 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;@9c0c4e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:12:36,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-11 19:12:36,413 INFO L130 PetriNetUnfolder]: 19/378 cut-off events. [2022-12-11 19:12:36,413 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:12:36,413 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:36,414 INFO L214 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] [2022-12-11 19:12:36,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:36,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:36,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1920521419, now seen corresponding path program 1 times [2022-12-11 19:12:36,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:36,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654473678] [2022-12-11 19:12:36,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:36,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:37,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:37,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654473678] [2022-12-11 19:12:37,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654473678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:37,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:37,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 19:12:37,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143416675] [2022-12-11 19:12:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:37,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 19:12:37,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:37,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 19:12:37,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-11 19:12:37,237 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 730 out of 798 [2022-12-11 19:12:37,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 731 places, 788 transitions, 1585 flow. Second operand has 9 states, 9 states have (on average 732.1111111111111) internal successors, (6589), 9 states have internal predecessors, (6589), 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) [2022-12-11 19:12:37,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:37,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 730 of 798 [2022-12-11 19:12:37,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:37,599 INFO L130 PetriNetUnfolder]: 34/752 cut-off events. [2022-12-11 19:12:37,600 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-12-11 19:12:37,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 752 events. 34/752 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1132 event pairs, 0 based on Foata normal form. 19/733 useless extension candidates. Maximal degree in co-relation 717. Up to 12 conditions per place. [2022-12-11 19:12:37,607 INFO L137 encePairwiseOnDemand]: 752/798 looper letters, 18 selfloop transitions, 16 changer transitions 1/752 dead transitions. [2022-12-11 19:12:37,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 740 places, 752 transitions, 1581 flow [2022-12-11 19:12:37,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 19:12:37,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 19:12:37,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 11744 transitions. [2022-12-11 19:12:37,636 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9197994987468672 [2022-12-11 19:12:37,638 INFO L175 Difference]: Start difference. First operand has 731 places, 788 transitions, 1585 flow. Second operand 16 states and 11744 transitions. [2022-12-11 19:12:37,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 740 places, 752 transitions, 1581 flow [2022-12-11 19:12:37,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 737 places, 752 transitions, 1576 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:12:37,660 INFO L231 Difference]: Finished difference. Result has 737 places, 751 transitions, 1538 flow [2022-12-11 19:12:37,663 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1508, PETRI_DIFFERENCE_MINUEND_PLACES=722, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=736, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1538, PETRI_PLACES=737, PETRI_TRANSITIONS=751} [2022-12-11 19:12:37,666 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, 6 predicate places. [2022-12-11 19:12:37,666 INFO L495 AbstractCegarLoop]: Abstraction has has 737 places, 751 transitions, 1538 flow [2022-12-11 19:12:37,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 732.1111111111111) internal successors, (6589), 9 states have internal predecessors, (6589), 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) [2022-12-11 19:12:37,670 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:37,670 INFO L214 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] [2022-12-11 19:12:37,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:12:37,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:37,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:37,673 INFO L85 PathProgramCache]: Analyzing trace with hash -672490705, now seen corresponding path program 1 times [2022-12-11 19:12:37,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:37,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030614554] [2022-12-11 19:12:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:37,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:38,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:38,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030614554] [2022-12-11 19:12:38,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030614554] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:38,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:38,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:12:38,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556632215] [2022-12-11 19:12:38,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:38,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:12:38,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:38,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:12:38,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:12:38,292 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 722 out of 798 [2022-12-11 19:12:38,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 737 places, 751 transitions, 1538 flow. Second operand has 6 states, 6 states have (on average 726.6666666666666) internal successors, (4360), 6 states have internal predecessors, (4360), 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) [2022-12-11 19:12:38,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:38,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 722 of 798 [2022-12-11 19:12:38,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:38,597 INFO L130 PetriNetUnfolder]: 74/1210 cut-off events. [2022-12-11 19:12:38,598 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 19:12:38,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1303 conditions, 1210 events. 74/1210 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3449 event pairs, 4 based on Foata normal form. 0/1129 useless extension candidates. Maximal degree in co-relation 838. Up to 36 conditions per place. [2022-12-11 19:12:38,603 INFO L137 encePairwiseOnDemand]: 788/798 looper letters, 46 selfloop transitions, 9 changer transitions 0/763 dead transitions. [2022-12-11 19:12:38,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 741 places, 763 transitions, 1676 flow [2022-12-11 19:12:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 19:12:38,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 19:12:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5832 transitions. [2022-12-11 19:12:38,617 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9135338345864662 [2022-12-11 19:12:38,617 INFO L175 Difference]: Start difference. First operand has 737 places, 751 transitions, 1538 flow. Second operand 8 states and 5832 transitions. [2022-12-11 19:12:38,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 741 places, 763 transitions, 1676 flow [2022-12-11 19:12:38,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 726 places, 763 transitions, 1644 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-11 19:12:38,626 INFO L231 Difference]: Finished difference. Result has 727 places, 753 transitions, 1541 flow [2022-12-11 19:12:38,627 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=719, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=740, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1541, PETRI_PLACES=727, PETRI_TRANSITIONS=753} [2022-12-11 19:12:38,628 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, -4 predicate places. [2022-12-11 19:12:38,628 INFO L495 AbstractCegarLoop]: Abstraction has has 727 places, 753 transitions, 1541 flow [2022-12-11 19:12:38,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 726.6666666666666) internal successors, (4360), 6 states have internal predecessors, (4360), 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) [2022-12-11 19:12:38,630 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:38,630 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:12:38,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:12:38,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:38,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:38,631 INFO L85 PathProgramCache]: Analyzing trace with hash 86638935, now seen corresponding path program 1 times [2022-12-11 19:12:38,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:38,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021933623] [2022-12-11 19:12:38,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:38,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:38,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:38,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021933623] [2022-12-11 19:12:38,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021933623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:38,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:38,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 19:12:38,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888375321] [2022-12-11 19:12:38,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:38,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 19:12:38,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:38,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 19:12:38,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-11 19:12:38,993 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 742 out of 798 [2022-12-11 19:12:38,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 727 places, 753 transitions, 1541 flow. Second operand has 5 states, 5 states have (on average 743.6) internal successors, (3718), 5 states have internal predecessors, (3718), 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) [2022-12-11 19:12:38,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:38,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 742 of 798 [2022-12-11 19:12:38,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:39,180 INFO L130 PetriNetUnfolder]: 72/1293 cut-off events. [2022-12-11 19:12:39,180 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-12-11 19:12:39,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 1293 events. 72/1293 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3313 event pairs, 0 based on Foata normal form. 0/1213 useless extension candidates. Maximal degree in co-relation 511. Up to 16 conditions per place. [2022-12-11 19:12:39,190 INFO L137 encePairwiseOnDemand]: 791/798 looper letters, 25 selfloop transitions, 6 changer transitions 0/760 dead transitions. [2022-12-11 19:12:39,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 732 places, 760 transitions, 1621 flow [2022-12-11 19:12:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 19:12:39,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 19:12:39,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4483 transitions. [2022-12-11 19:12:39,197 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9362990810359232 [2022-12-11 19:12:39,197 INFO L175 Difference]: Start difference. First operand has 727 places, 753 transitions, 1541 flow. Second operand 6 states and 4483 transitions. [2022-12-11 19:12:39,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 732 places, 760 transitions, 1621 flow [2022-12-11 19:12:39,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 727 places, 760 transitions, 1612 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-11 19:12:39,207 INFO L231 Difference]: Finished difference. Result has 728 places, 754 transitions, 1552 flow [2022-12-11 19:12:39,208 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1532, PETRI_DIFFERENCE_MINUEND_PLACES=722, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=747, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1552, PETRI_PLACES=728, PETRI_TRANSITIONS=754} [2022-12-11 19:12:39,209 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, -3 predicate places. [2022-12-11 19:12:39,209 INFO L495 AbstractCegarLoop]: Abstraction has has 728 places, 754 transitions, 1552 flow [2022-12-11 19:12:39,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 743.6) internal successors, (3718), 5 states have internal predecessors, (3718), 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) [2022-12-11 19:12:39,211 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:39,211 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:12:39,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:12:39,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:39,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:39,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1352976191, now seen corresponding path program 1 times [2022-12-11 19:12:39,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:39,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246183382] [2022-12-11 19:12:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:39,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:39,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:39,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246183382] [2022-12-11 19:12:39,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246183382] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:39,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427631604] [2022-12-11 19:12:39,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:39,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:39,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:39,597 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) [2022-12-11 19:12:39,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-11 19:12:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:39,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-11 19:12:39,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:12:40,054 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 [2022-12-11 19:12:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 19:12:40,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 19:12:40,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427631604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:40,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 19:12:40,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-11 19:12:40,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184505727] [2022-12-11 19:12:40,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:40,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:12:40,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:40,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:12:40,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:12:40,088 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 798 [2022-12-11 19:12:40,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 728 places, 754 transitions, 1552 flow. Second operand has 7 states, 7 states have (on average 710.2857142857143) internal successors, (4972), 7 states have internal predecessors, (4972), 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) [2022-12-11 19:12:40,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:40,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 798 [2022-12-11 19:12:40,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:41,369 INFO L130 PetriNetUnfolder]: 1698/6690 cut-off events. [2022-12-11 19:12:41,369 INFO L131 PetriNetUnfolder]: For 125/125 co-relation queries the response was YES. [2022-12-11 19:12:41,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9455 conditions, 6690 events. 1698/6690 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 50865 event pairs, 453 based on Foata normal form. 0/6008 useless extension candidates. Maximal degree in co-relation 9230. Up to 1005 conditions per place. [2022-12-11 19:12:41,407 INFO L137 encePairwiseOnDemand]: 789/798 looper letters, 134 selfloop transitions, 17 changer transitions 13/854 dead transitions. [2022-12-11 19:12:41,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 740 places, 854 transitions, 2091 flow [2022-12-11 19:12:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 19:12:41,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 19:12:41,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 9327 transitions. [2022-12-11 19:12:41,420 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8990746096009254 [2022-12-11 19:12:41,420 INFO L175 Difference]: Start difference. First operand has 728 places, 754 transitions, 1552 flow. Second operand 13 states and 9327 transitions. [2022-12-11 19:12:41,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 740 places, 854 transitions, 2091 flow [2022-12-11 19:12:41,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 736 places, 854 transitions, 2081 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-11 19:12:41,432 INFO L231 Difference]: Finished difference. Result has 741 places, 770 transitions, 1641 flow [2022-12-11 19:12:41,433 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1542, PETRI_DIFFERENCE_MINUEND_PLACES=724, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=754, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=746, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1641, PETRI_PLACES=741, PETRI_TRANSITIONS=770} [2022-12-11 19:12:41,435 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, 10 predicate places. [2022-12-11 19:12:41,435 INFO L495 AbstractCegarLoop]: Abstraction has has 741 places, 770 transitions, 1641 flow [2022-12-11 19:12:41,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 710.2857142857143) internal successors, (4972), 7 states have internal predecessors, (4972), 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) [2022-12-11 19:12:41,438 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:41,438 INFO L214 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] [2022-12-11 19:12:41,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-11 19:12:41,645 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 [2022-12-11 19:12:41,648 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:41,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1601528762, now seen corresponding path program 1 times [2022-12-11 19:12:41,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:41,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426424063] [2022-12-11 19:12:41,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:41,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:42,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:42,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:42,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426424063] [2022-12-11 19:12:42,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426424063] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:42,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715853566] [2022-12-11 19:12:42,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:42,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:42,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:42,080 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) [2022-12-11 19:12:42,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-11 19:12:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:42,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-11 19:12:42,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:12:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 19:12:42,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 19:12:42,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715853566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:42,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 19:12:42,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2022-12-11 19:12:42,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737243643] [2022-12-11 19:12:42,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:42,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 19:12:42,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:42,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 19:12:42,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-11 19:12:42,593 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 798 [2022-12-11 19:12:42,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 741 places, 770 transitions, 1641 flow. Second operand has 8 states, 8 states have (on average 730.625) internal successors, (5845), 8 states have internal predecessors, (5845), 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) [2022-12-11 19:12:42,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:42,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 798 [2022-12-11 19:12:42,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:43,024 INFO L130 PetriNetUnfolder]: 248/2124 cut-off events. [2022-12-11 19:12:43,024 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-11 19:12:43,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2842 conditions, 2124 events. 248/2124 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11564 event pairs, 0 based on Foata normal form. 0/1968 useless extension candidates. Maximal degree in co-relation 2776. Up to 196 conditions per place. [2022-12-11 19:12:43,042 INFO L137 encePairwiseOnDemand]: 786/798 looper letters, 65 selfloop transitions, 12 changer transitions 0/803 dead transitions. [2022-12-11 19:12:43,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 750 places, 803 transitions, 1877 flow [2022-12-11 19:12:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 19:12:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 19:12:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 7352 transitions. [2022-12-11 19:12:43,053 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9213032581453634 [2022-12-11 19:12:43,053 INFO L175 Difference]: Start difference. First operand has 741 places, 770 transitions, 1641 flow. Second operand 10 states and 7352 transitions. [2022-12-11 19:12:43,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 750 places, 803 transitions, 1877 flow [2022-12-11 19:12:43,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 750 places, 803 transitions, 1877 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-11 19:12:43,100 INFO L231 Difference]: Finished difference. Result has 754 places, 777 transitions, 1704 flow [2022-12-11 19:12:43,101 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1641, PETRI_DIFFERENCE_MINUEND_PLACES=741, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=770, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=760, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1704, PETRI_PLACES=754, PETRI_TRANSITIONS=777} [2022-12-11 19:12:43,102 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, 23 predicate places. [2022-12-11 19:12:43,102 INFO L495 AbstractCegarLoop]: Abstraction has has 754 places, 777 transitions, 1704 flow [2022-12-11 19:12:43,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 730.625) internal successors, (5845), 8 states have internal predecessors, (5845), 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) [2022-12-11 19:12:43,105 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:43,105 INFO L214 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] [2022-12-11 19:12:43,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-11 19:12:43,323 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 [2022-12-11 19:12:43,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:43,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:43,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1353229274, now seen corresponding path program 1 times [2022-12-11 19:12:43,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:43,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753028598] [2022-12-11 19:12:43,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:43,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:43,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:43,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753028598] [2022-12-11 19:12:43,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753028598] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:43,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307413447] [2022-12-11 19:12:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:43,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:43,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:43,702 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) [2022-12-11 19:12:43,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-11 19:12:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:44,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-11 19:12:44,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:12:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:44,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 19:12:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:44,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307413447] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 19:12:44,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 19:12:44,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2022-12-11 19:12:44,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143646513] [2022-12-11 19:12:44,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 19:12:44,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-11 19:12:44,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-11 19:12:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-11 19:12:44,279 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 742 out of 798 [2022-12-11 19:12:44,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 754 places, 777 transitions, 1704 flow. Second operand has 12 states, 12 states have (on average 743.9166666666666) internal successors, (8927), 12 states have internal predecessors, (8927), 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) [2022-12-11 19:12:44,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:44,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 742 of 798 [2022-12-11 19:12:44,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:44,785 INFO L130 PetriNetUnfolder]: 141/2094 cut-off events. [2022-12-11 19:12:44,785 INFO L131 PetriNetUnfolder]: For 61/64 co-relation queries the response was YES. [2022-12-11 19:12:44,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2437 conditions, 2094 events. 141/2094 cut-off events. For 61/64 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 9736 event pairs, 0 based on Foata normal form. 3/1961 useless extension candidates. Maximal degree in co-relation 2344. Up to 27 conditions per place. [2022-12-11 19:12:44,801 INFO L137 encePairwiseOnDemand]: 785/798 looper letters, 27 selfloop transitions, 18 changer transitions 0/797 dead transitions. [2022-12-11 19:12:44,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 768 places, 797 transitions, 1842 flow [2022-12-11 19:12:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 19:12:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 19:12:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 11179 transitions. [2022-12-11 19:12:44,814 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9339181286549708 [2022-12-11 19:12:44,815 INFO L175 Difference]: Start difference. First operand has 754 places, 777 transitions, 1704 flow. Second operand 15 states and 11179 transitions. [2022-12-11 19:12:44,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 768 places, 797 transitions, 1842 flow [2022-12-11 19:12:44,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 766 places, 797 transitions, 1839 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-11 19:12:44,826 INFO L231 Difference]: Finished difference. Result has 769 places, 784 transitions, 1776 flow [2022-12-11 19:12:44,827 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1701, PETRI_DIFFERENCE_MINUEND_PLACES=752, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=777, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=763, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1776, PETRI_PLACES=769, PETRI_TRANSITIONS=784} [2022-12-11 19:12:44,828 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, 38 predicate places. [2022-12-11 19:12:44,828 INFO L495 AbstractCegarLoop]: Abstraction has has 769 places, 784 transitions, 1776 flow [2022-12-11 19:12:44,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 743.9166666666666) internal successors, (8927), 12 states have internal predecessors, (8927), 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) [2022-12-11 19:12:44,832 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:44,832 INFO L214 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] [2022-12-11 19:12:44,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-11 19:12:45,041 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 [2022-12-11 19:12:45,042 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:45,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:45,043 INFO L85 PathProgramCache]: Analyzing trace with hash -843875780, now seen corresponding path program 2 times [2022-12-11 19:12:45,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:45,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355582348] [2022-12-11 19:12:45,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:45,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:45,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:45,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355582348] [2022-12-11 19:12:45,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355582348] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:45,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901376544] [2022-12-11 19:12:45,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 19:12:45,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:45,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:45,583 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) [2022-12-11 19:12:45,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-11 19:12:46,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-11 19:12:46,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 19:12:46,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-11 19:12:46,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:12:46,077 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 [2022-12-11 19:12:46,094 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 [2022-12-11 19:12:46,139 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-11 19:12:46,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 19:12:46,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901376544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:46,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 19:12:46,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-12-11 19:12:46,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684085640] [2022-12-11 19:12:46,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:46,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:12:46,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:46,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:12:46,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-11 19:12:46,143 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 703 out of 798 [2022-12-11 19:12:46,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 769 places, 784 transitions, 1776 flow. Second operand has 7 states, 7 states have (on average 709.1428571428571) internal successors, (4964), 7 states have internal predecessors, (4964), 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) [2022-12-11 19:12:46,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:46,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 703 of 798 [2022-12-11 19:12:46,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:48,007 INFO L130 PetriNetUnfolder]: 2097/9789 cut-off events. [2022-12-11 19:12:48,007 INFO L131 PetriNetUnfolder]: For 1426/1642 co-relation queries the response was YES. [2022-12-11 19:12:48,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14917 conditions, 9789 events. 2097/9789 cut-off events. For 1426/1642 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 79046 event pairs, 804 based on Foata normal form. 192/9034 useless extension candidates. Maximal degree in co-relation 14680. Up to 1241 conditions per place. [2022-12-11 19:12:48,060 INFO L137 encePairwiseOnDemand]: 790/798 looper letters, 90 selfloop transitions, 10 changer transitions 44/849 dead transitions. [2022-12-11 19:12:48,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 780 places, 849 transitions, 2278 flow [2022-12-11 19:12:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-11 19:12:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-11 19:12:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 8561 transitions. [2022-12-11 19:12:48,072 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8940058479532164 [2022-12-11 19:12:48,072 INFO L175 Difference]: Start difference. First operand has 769 places, 784 transitions, 1776 flow. Second operand 12 states and 8561 transitions. [2022-12-11 19:12:48,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 780 places, 849 transitions, 2278 flow [2022-12-11 19:12:48,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 773 places, 849 transitions, 2257 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-12-11 19:12:48,096 INFO L231 Difference]: Finished difference. Result has 781 places, 782 transitions, 1794 flow [2022-12-11 19:12:48,097 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1755, PETRI_DIFFERENCE_MINUEND_PLACES=762, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=784, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=774, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1794, PETRI_PLACES=781, PETRI_TRANSITIONS=782} [2022-12-11 19:12:48,098 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, 50 predicate places. [2022-12-11 19:12:48,098 INFO L495 AbstractCegarLoop]: Abstraction has has 781 places, 782 transitions, 1794 flow [2022-12-11 19:12:48,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 709.1428571428571) internal successors, (4964), 7 states have internal predecessors, (4964), 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) [2022-12-11 19:12:48,099 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:48,100 INFO L214 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] [2022-12-11 19:12:48,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-11 19:12:48,306 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 [2022-12-11 19:12:48,307 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:48,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:48,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1201929583, now seen corresponding path program 1 times [2022-12-11 19:12:48,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:48,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769403151] [2022-12-11 19:12:48,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:48,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:48,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:48,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769403151] [2022-12-11 19:12:48,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769403151] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:48,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004458231] [2022-12-11 19:12:48,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:48,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:48,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:48,806 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) [2022-12-11 19:12:48,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-11 19:12:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:49,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 83 conjunts are in the unsatisfiable core [2022-12-11 19:12:49,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:12:49,683 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-11 19:12:49,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-11 19:12:49,709 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:49,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-11 19:12:49,749 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:49,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:49,790 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:49,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:49,829 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:49,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:49,862 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:49,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:49,893 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:49,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:49,921 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:49,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:49,960 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 19:12:49,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 19:12:50,145 INFO L321 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2022-12-11 19:12:50,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 78 [2022-12-11 19:12:50,362 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:50,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:50,398 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:50,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:50,442 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 19:12:50,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 19:12:50,519 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 19:12:50,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 19:12:50,545 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:50,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:50,571 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:50,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:50,600 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:50,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:50,632 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:50,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:50,662 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:50,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-11 19:12:50,696 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 19:12:50,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 19:12:50,728 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 19:12:50,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 19:12:50,809 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 19:12:50,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 19:12:50,904 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:50,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 27 [2022-12-11 19:12:51,326 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-11 19:12:51,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 27 [2022-12-11 19:12:51,381 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-11 19:12:51,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-11 19:12:51,402 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-11 19:12:51,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-12-11 19:12:51,592 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 [2022-12-11 19:12:51,658 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 [2022-12-11 19:12:51,678 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 [2022-12-11 19:12:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-11 19:12:51,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 19:12:51,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004458231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:51,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 19:12:51,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [9] total 21 [2022-12-11 19:12:51,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690595469] [2022-12-11 19:12:51,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:51,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-11 19:12:51,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:51,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-11 19:12:51,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2022-12-11 19:12:51,729 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 650 out of 798 [2022-12-11 19:12:51,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 781 places, 782 transitions, 1794 flow. Second operand has 14 states, 14 states have (on average 656.2857142857143) internal successors, (9188), 14 states have internal predecessors, (9188), 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) [2022-12-11 19:12:51,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:51,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 650 of 798 [2022-12-11 19:12:51,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:53,919 INFO L130 PetriNetUnfolder]: 1788/8739 cut-off events. [2022-12-11 19:12:53,919 INFO L131 PetriNetUnfolder]: For 2669/2858 co-relation queries the response was YES. [2022-12-11 19:12:53,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13933 conditions, 8739 events. 1788/8739 cut-off events. For 2669/2858 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 68255 event pairs, 579 based on Foata normal form. 186/8091 useless extension candidates. Maximal degree in co-relation 13884. Up to 1205 conditions per place. [2022-12-11 19:12:53,972 INFO L137 encePairwiseOnDemand]: 782/798 looper letters, 119 selfloop transitions, 18 changer transitions 16/809 dead transitions. [2022-12-11 19:12:53,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 785 places, 809 transitions, 2216 flow [2022-12-11 19:12:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 19:12:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 19:12:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 9886 transitions. [2022-12-11 19:12:53,983 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8258980785296575 [2022-12-11 19:12:53,983 INFO L175 Difference]: Start difference. First operand has 781 places, 782 transitions, 1794 flow. Second operand 15 states and 9886 transitions. [2022-12-11 19:12:53,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 785 places, 809 transitions, 2216 flow [2022-12-11 19:12:53,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 779 places, 809 transitions, 2201 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-11 19:12:54,002 INFO L231 Difference]: Finished difference. Result has 779 places, 775 transitions, 1787 flow [2022-12-11 19:12:54,004 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1771, PETRI_DIFFERENCE_MINUEND_PLACES=765, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=780, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=762, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1787, PETRI_PLACES=779, PETRI_TRANSITIONS=775} [2022-12-11 19:12:54,006 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, 48 predicate places. [2022-12-11 19:12:54,006 INFO L495 AbstractCegarLoop]: Abstraction has has 779 places, 775 transitions, 1787 flow [2022-12-11 19:12:54,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 656.2857142857143) internal successors, (9188), 14 states have internal predecessors, (9188), 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) [2022-12-11 19:12:54,008 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:54,009 INFO L214 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] [2022-12-11 19:12:54,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-11 19:12:54,217 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 [2022-12-11 19:12:54,218 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:54,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:54,218 INFO L85 PathProgramCache]: Analyzing trace with hash -874785298, now seen corresponding path program 1 times [2022-12-11 19:12:54,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:54,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353897188] [2022-12-11 19:12:54,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:54,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:54,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:54,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353897188] [2022-12-11 19:12:54,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353897188] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:54,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914134756] [2022-12-11 19:12:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:54,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:54,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:54,827 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) [2022-12-11 19:12:54,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-11 19:12:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:55,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-11 19:12:55,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:12:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:55,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 19:12:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:55,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914134756] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 19:12:55,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 19:12:55,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-11 19:12:55,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532027794] [2022-12-11 19:12:55,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 19:12:55,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-11 19:12:55,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:55,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-11 19:12:55,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-12-11 19:12:55,714 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 742 out of 798 [2022-12-11 19:12:55,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 775 transitions, 1787 flow. Second operand has 18 states, 18 states have (on average 744.8888888888889) internal successors, (13408), 18 states have internal predecessors, (13408), 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) [2022-12-11 19:12:55,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:55,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 742 of 798 [2022-12-11 19:12:55,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:56,988 INFO L130 PetriNetUnfolder]: 126/1878 cut-off events. [2022-12-11 19:12:56,988 INFO L131 PetriNetUnfolder]: For 253/265 co-relation queries the response was YES. [2022-12-11 19:12:57,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 1878 events. 126/1878 cut-off events. For 253/265 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6540 event pairs, 0 based on Foata normal form. 4/1773 useless extension candidates. Maximal degree in co-relation 2306. Up to 27 conditions per place. [2022-12-11 19:12:57,008 INFO L137 encePairwiseOnDemand]: 785/798 looper letters, 56 selfloop transitions, 24 changer transitions 1/821 dead transitions. [2022-12-11 19:12:57,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 821 transitions, 2105 flow [2022-12-11 19:12:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-11 19:12:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-11 19:12:57,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 16414 transitions. [2022-12-11 19:12:57,022 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9349510138983823 [2022-12-11 19:12:57,022 INFO L175 Difference]: Start difference. First operand has 779 places, 775 transitions, 1787 flow. Second operand 22 states and 16414 transitions. [2022-12-11 19:12:57,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 821 transitions, 2105 flow [2022-12-11 19:12:57,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 781 places, 821 transitions, 2035 flow, removed 2 selfloop flow, removed 19 redundant places. [2022-12-11 19:12:57,035 INFO L231 Difference]: Finished difference. Result has 792 places, 782 transitions, 1859 flow [2022-12-11 19:12:57,036 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1713, PETRI_DIFFERENCE_MINUEND_PLACES=760, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=772, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=757, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1859, PETRI_PLACES=792, PETRI_TRANSITIONS=782} [2022-12-11 19:12:57,036 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, 61 predicate places. [2022-12-11 19:12:57,036 INFO L495 AbstractCegarLoop]: Abstraction has has 792 places, 782 transitions, 1859 flow [2022-12-11 19:12:57,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 744.8888888888889) internal successors, (13408), 18 states have internal predecessors, (13408), 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) [2022-12-11 19:12:57,040 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:57,040 INFO L214 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:12:57,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-11 19:12:57,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:57,250 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:57,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1766089352, now seen corresponding path program 2 times [2022-12-11 19:12:57,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:57,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104755157] [2022-12-11 19:12:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:57,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:58,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:58,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104755157] [2022-12-11 19:12:58,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104755157] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:58,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517320475] [2022-12-11 19:12:58,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 19:12:58,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:58,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:58,158 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) [2022-12-11 19:12:58,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-11 19:12:59,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-11 19:12:59,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 19:12:59,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-11 19:12:59,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:13:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:00,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 19:13:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:00,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517320475] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 19:13:00,562 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 19:13:00,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2022-12-11 19:13:00,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678661231] [2022-12-11 19:13:00,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 19:13:00,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-11 19:13:00,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:13:00,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-11 19:13:00,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2022-12-11 19:13:00,583 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 742 out of 798 [2022-12-11 19:13:00,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 792 places, 782 transitions, 1859 flow. Second operand has 29 states, 29 states have (on average 745.3103448275862) internal successors, (21614), 29 states have internal predecessors, (21614), 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) [2022-12-11 19:13:00,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:13:00,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 742 of 798 [2022-12-11 19:13:00,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:13:12,335 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 51 DAG size of output: 50 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-11 19:13:30,402 INFO L130 PetriNetUnfolder]: 117/1932 cut-off events. [2022-12-11 19:13:30,402 INFO L131 PetriNetUnfolder]: For 834/846 co-relation queries the response was YES. [2022-12-11 19:13:30,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2674 conditions, 1932 events. 117/1932 cut-off events. For 834/846 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6098 event pairs, 0 based on Foata normal form. 18/1851 useless extension candidates. Maximal degree in co-relation 2461. Up to 27 conditions per place. [2022-12-11 19:13:30,414 INFO L137 encePairwiseOnDemand]: 785/798 looper letters, 110 selfloop transitions, 42 changer transitions 0/892 dead transitions. [2022-12-11 19:13:30,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 831 places, 892 transitions, 2684 flow [2022-12-11 19:13:30,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-11 19:13:30,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-12-11 19:13:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 29850 transitions. [2022-12-11 19:13:30,431 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9351503759398496 [2022-12-11 19:13:30,431 INFO L175 Difference]: Start difference. First operand has 792 places, 782 transitions, 1859 flow. Second operand 40 states and 29850 transitions. [2022-12-11 19:13:30,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 831 places, 892 transitions, 2684 flow [2022-12-11 19:13:30,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 823 places, 892 transitions, 2669 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-11 19:13:30,444 INFO L231 Difference]: Finished difference. Result has 843 places, 802 transitions, 2188 flow [2022-12-11 19:13:30,445 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=798, PETRI_DIFFERENCE_MINUEND_FLOW=1844, PETRI_DIFFERENCE_MINUEND_PLACES=784, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=782, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=758, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=2188, PETRI_PLACES=843, PETRI_TRANSITIONS=802} [2022-12-11 19:13:30,445 INFO L295 CegarLoopForPetriNet]: 731 programPoint places, 112 predicate places. [2022-12-11 19:13:30,445 INFO L495 AbstractCegarLoop]: Abstraction has has 843 places, 802 transitions, 2188 flow [2022-12-11 19:13:30,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 745.3103448275862) internal successors, (21614), 29 states have internal predecessors, (21614), 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) [2022-12-11 19:13:30,449 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:13:30,449 INFO L214 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:13:30,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-11 19:13:30,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:13:30,659 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:13:30,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:13:30,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1429562858, now seen corresponding path program 3 times [2022-12-11 19:13:30,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:13:30,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416663753] [2022-12-11 19:13:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:13:30,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:13:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:13:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:13:32,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:13:32,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416663753] [2022-12-11 19:13:32,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416663753] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:13:32,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727975334] [2022-12-11 19:13:32,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-11 19:13:32,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:13:32,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:13:32,614 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 19:13:32,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Received shutdown request... [2022-12-11 19:27:01,026 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-11 19:27:01,026 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-11 19:27:02,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-12-11 19:27:02,232 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process [2022-12-11 19:27:02,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137 [2022-12-11 19:27:02,251 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-11 19:27:02,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-11 19:27:02,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2022-12-11 19:27:02,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118868240] [2022-12-11 19:27:02,263 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-11 19:27:02,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-11 19:27:02,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:27:02,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-11 19:27:02,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-12-11 19:27:02,271 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 742 out of 798 [2022-12-11 19:27:02,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 802 transitions, 2188 flow. Second operand has 27 states, 27 states have (on average 745.5555555555555) internal successors, (20130), 27 states have internal predecessors, (20130), 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) [2022-12-11 19:27:02,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:27:02,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 742 of 798 [2022-12-11 19:27:02,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:27:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-11 19:27:02,282 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-11 19:27:02,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-11 19:27:02,282 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 742/798 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 51 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). [2022-12-11 19:27:02,283 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-11 19:27:02,283 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-11 19:27:02,283 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-11 19:27:02,283 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-11 19:27:02,284 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-11 19:27:02,284 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-11 19:27:02,284 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2022-12-11 19:27:02,287 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:27:02,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:27:02,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:27:02 BasicIcfg [2022-12-11 19:27:02,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:27:02,292 INFO L158 Benchmark]: Toolchain (without parser) took 871563.35ms. Allocated memory was 182.5MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 147.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 440.2MB. Max. memory is 8.0GB. [2022-12-11 19:27:02,293 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:27:02,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3789.14ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 147.8MB in the beginning and 94.8MB in the end (delta: 53.0MB). Peak memory consumption was 102.1MB. Max. memory is 8.0GB. [2022-12-11 19:27:02,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 182.63ms. Allocated memory is still 219.2MB. Free memory was 94.8MB in the beginning and 159.1MB in the end (delta: -64.4MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2022-12-11 19:27:02,294 INFO L158 Benchmark]: Boogie Preprocessor took 83.40ms. Allocated memory is still 219.2MB. Free memory was 159.1MB in the beginning and 153.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-12-11 19:27:02,294 INFO L158 Benchmark]: RCFGBuilder took 1232.17ms. Allocated memory is still 219.2MB. Free memory was 153.3MB in the beginning and 88.9MB in the end (delta: 64.5MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-12-11 19:27:02,295 INFO L158 Benchmark]: TraceAbstraction took 866270.33ms. Allocated memory was 219.2MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 87.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 342.9MB. Max. memory is 8.0GB. [2022-12-11 19:27:02,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 3789.14ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 147.8MB in the beginning and 94.8MB in the end (delta: 53.0MB). Peak memory consumption was 102.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 182.63ms. Allocated memory is still 219.2MB. Free memory was 94.8MB in the beginning and 159.1MB in the end (delta: -64.4MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.40ms. Allocated memory is still 219.2MB. Free memory was 159.1MB in the beginning and 153.3MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1232.17ms. Allocated memory is still 219.2MB. Free memory was 153.3MB in the beginning and 88.9MB in the end (delta: 64.5MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. * TraceAbstraction took 866270.33ms. Allocated memory was 219.2MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 87.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 342.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 742/798 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 51 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 742/798 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 51 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 742/798 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 51 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 742/798 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 51 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 742/798 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 51 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 903 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 866.1s, OverallIterations: 11, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 38.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1733 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1733 mSDsluCounter, 1141 SdHoareTripleChecker+Invalid, 7.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 879 mSDsCounter, 197 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2506 IncrementalHoareTripleChecker+Invalid, 2703 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 197 mSolverCounterUnsat, 262 mSDtfsCounter, 2506 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3528 GetRequests, 3267 SyntacticMatches, 4 SemanticMatches, 257 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1871 ImplicationChecksByTransitivity, 25.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2188occurred in iteration=10, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 5716 NumberOfCodeBlocks, 5688 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 6741 ConstructedInterpolants, 3 QuantifiedInterpolants, 17343 SizeOfPredicates, 65 NumberOfNonLiveVariables, 7679 ConjunctsInSsa, 182 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 94/2943 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown