/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_configure_pc8736x_gpio_current.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:44:16,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:44:16,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:44:16,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:44:16,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:44:16,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:44:16,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:44:16,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:44:16,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:44:16,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:44:16,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:44:16,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:44:16,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:44:16,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:44:16,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:44:16,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:44:16,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:44:16,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:44:16,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:44:16,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:44:16,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:44:16,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:44:16,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:44:16,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:44:16,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:44:16,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:44:16,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:44:16,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:44:16,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:44:16,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:44:16,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:44:16,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:44:16,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:44:16,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:44:16,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:44:16,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:44:16,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:44:16,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:44:16,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:44:16,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:44:16,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:44:16,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:44:16,682 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:44:16,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:44:16,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:44:16,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:44:16,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:44:16,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:44:16,684 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:44:16,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:44:16,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:44:16,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:44:16,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:44:16,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:44:16,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:44:16,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:44:16,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:44:16,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:44:16,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:44:16,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:44:16,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:44:16,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:44:16,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:44:16,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:44:16,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:44:16,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:44:16,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:44:16,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:44:16,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:44:16,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:44:16,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:44:16,687 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:44:16,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:44:16,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:44:16,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:44:16,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:44:16,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:44:16,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:44:16,986 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:44:16,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2022-12-05 18:44:18,028 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:44:18,496 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:44:18,496 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2022-12-05 18:44:18,529 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e506c07/b77a6e1a503e401194f9f3ed0101eaba/FLAGe2a83da8e [2022-12-05 18:44:18,543 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e506c07/b77a6e1a503e401194f9f3ed0101eaba [2022-12-05 18:44:18,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:44:18,546 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:44:18,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:44:18,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:44:18,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:44:18,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:44:18" (1/1) ... [2022-12-05 18:44:18,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8d7a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:18, skipping insertion in model container [2022-12-05 18:44:18,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:44:18" (1/1) ... [2022-12-05 18:44:18,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:44:18,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:44:18,956 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_configure_pc8736x_gpio_current.i[5469,5482] [2022-12-05 18:44:19,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,389 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:44:19,398 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:19,406 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:19,421 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:19,602 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:19,608 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:19,718 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:44:19,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:19,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:19,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:20,047 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:44:20,053 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:44:20,059 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:44:20,175 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:44:20,177 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:20,181 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:44:20,181 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:20,375 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:44:20,954 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:20,965 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:21,060 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:44:21,065 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:44:21,490 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:44:21,780 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:44:21,787 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:44:22,031 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:44:22,430 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:44:22,430 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:44:22,430 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:44:23,513 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:44:23,514 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:23,553 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:23,556 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:23,559 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:23,994 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:23,995 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:24,024 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:44:24,025 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:44:24,026 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:44:24,028 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:24,028 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:44:24,028 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:44:24,032 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:24,032 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:44:24,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:44:24,082 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:44:24,107 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_configure_pc8736x_gpio_current.i[5469,5482] [2022-12-05 18:44:24,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,119 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:44:24,119 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:24,119 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:24,120 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:24,123 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:24,124 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:24,128 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:44:24,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:24,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:24,150 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:44:24,151 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:44:24,151 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:44:24,153 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:44:24,154 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:24,154 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:44:24,154 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:24,161 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:44:24,172 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:24,173 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:24,175 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:44:24,176 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:44:24,182 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:44:24,186 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:44:24,187 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:44:24,190 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:44:24,193 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:44:24,194 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:44:24,194 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:44:24,247 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:44:24,248 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:24,250 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:24,256 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:24,259 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:24,294 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:24,294 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:24,298 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:44:24,299 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:44:24,300 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:44:24,300 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:24,301 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:44:24,301 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:44:24,301 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:24,302 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:44:24,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:44:24,701 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:44:24,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24 WrapperNode [2022-12-05 18:44:24,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:44:24,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:44:24,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:44:24,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:44:24,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,853 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 68, statements flattened = 758 [2022-12-05 18:44:24,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:44:24,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:44:24,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:44:24,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:44:24,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:44:24,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:44:24,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:44:24,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:44:24,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (1/1) ... [2022-12-05 18:44:24,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:44:24,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:24,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 18:44:25,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 18:44:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:44:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 18:44:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:44:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 18:44:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-05 18:44:25,023 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2022-12-05 18:44:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:44:25,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2022-12-05 18:44:25,024 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 18:44:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:44:25,026 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:44:25,401 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:44:25,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:44:26,012 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:44:26,043 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:44:26,044 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2022-12-05 18:44:26,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:44:26 BoogieIcfgContainer [2022-12-05 18:44:26,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:44:26,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:44:26,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:44:26,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:44:26,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:44:18" (1/3) ... [2022-12-05 18:44:26,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1100820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:44:26, skipping insertion in model container [2022-12-05 18:44:26,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:24" (2/3) ... [2022-12-05 18:44:26,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1100820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:44:26, skipping insertion in model container [2022-12-05 18:44:26,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:44:26" (3/3) ... [2022-12-05 18:44:26,054 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2022-12-05 18:44:26,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:44:26,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 18:44:26,068 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:44:26,174 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 18:44:26,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 788 places, 838 transitions, 1692 flow [2022-12-05 18:44:26,411 INFO L130 PetriNetUnfolder]: 57/836 cut-off events. [2022-12-05 18:44:26,411 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:44:26,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 836 events. 57/836 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1353 event pairs, 0 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 658. Up to 9 conditions per place. [2022-12-05 18:44:26,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 788 places, 838 transitions, 1692 flow [2022-12-05 18:44:26,433 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 778 places, 828 transitions, 1665 flow [2022-12-05 18:44:26,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:44:26,480 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;@1b1cc07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:44:26,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 18:44:26,516 INFO L130 PetriNetUnfolder]: 10/332 cut-off events. [2022-12-05 18:44:26,516 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:44:26,517 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:26,518 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:26,518 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 2 more)] === [2022-12-05 18:44:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:26,522 INFO L85 PathProgramCache]: Analyzing trace with hash -566504468, now seen corresponding path program 1 times [2022-12-05 18:44:26,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:26,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403360232] [2022-12-05 18:44:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:26,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:27,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:27,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:27,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403360232] [2022-12-05 18:44:27,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403360232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:27,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:27,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:44:27,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172452913] [2022-12-05 18:44:27,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:27,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:44:27,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:27,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:44:27,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:44:27,380 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 777 out of 838 [2022-12-05 18:44:27,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 778 places, 828 transitions, 1665 flow. Second operand has 9 states, 9 states have (on average 779.0) internal successors, (7011), 9 states have internal predecessors, (7011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:27,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:27,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 777 of 838 [2022-12-05 18:44:27,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:27,762 INFO L130 PetriNetUnfolder]: 45/947 cut-off events. [2022-12-05 18:44:27,763 INFO L131 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2022-12-05 18:44:27,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 947 events. 45/947 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1928 event pairs, 1 based on Foata normal form. 15/914 useless extension candidates. Maximal degree in co-relation 662. Up to 15 conditions per place. [2022-12-05 18:44:27,770 INFO L137 encePairwiseOnDemand]: 799/838 looper letters, 19 selfloop transitions, 16 changer transitions 3/800 dead transitions. [2022-12-05 18:44:27,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 800 transitions, 1679 flow [2022-12-05 18:44:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:44:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:44:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 12490 transitions. [2022-12-05 18:44:27,801 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9315334128878282 [2022-12-05 18:44:27,803 INFO L175 Difference]: Start difference. First operand has 778 places, 828 transitions, 1665 flow. Second operand 16 states and 12490 transitions. [2022-12-05 18:44:27,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 788 places, 800 transitions, 1679 flow [2022-12-05 18:44:27,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 800 transitions, 1674 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:44:27,825 INFO L231 Difference]: Finished difference. Result has 785 places, 797 transitions, 1630 flow [2022-12-05 18:44:27,828 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1604, PETRI_DIFFERENCE_MINUEND_PLACES=770, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=784, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1630, PETRI_PLACES=785, PETRI_TRANSITIONS=797} [2022-12-05 18:44:27,831 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 7 predicate places. [2022-12-05 18:44:27,832 INFO L495 AbstractCegarLoop]: Abstraction has has 785 places, 797 transitions, 1630 flow [2022-12-05 18:44:27,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 779.0) internal successors, (7011), 9 states have internal predecessors, (7011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:27,835 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:27,836 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:27,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:44:27,836 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 2 more)] === [2022-12-05 18:44:27,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:27,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1259831483, now seen corresponding path program 1 times [2022-12-05 18:44:27,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:27,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132808935] [2022-12-05 18:44:27,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:27,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:28,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:28,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132808935] [2022-12-05 18:44:28,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132808935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:28,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:28,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:44:28,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670428406] [2022-12-05 18:44:28,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:28,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:44:28,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:28,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:44:28,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:44:28,414 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 769 out of 838 [2022-12-05 18:44:28,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 785 places, 797 transitions, 1630 flow. Second operand has 6 states, 6 states have (on average 773.6666666666666) internal successors, (4642), 6 states have internal predecessors, (4642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:28,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:28,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 769 of 838 [2022-12-05 18:44:28,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:28,746 INFO L130 PetriNetUnfolder]: 80/1460 cut-off events. [2022-12-05 18:44:28,746 INFO L131 PetriNetUnfolder]: For 6/10 co-relation queries the response was YES. [2022-12-05 18:44:28,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1551 conditions, 1460 events. 80/1460 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4926 event pairs, 4 based on Foata normal form. 0/1379 useless extension candidates. Maximal degree in co-relation 1086. Up to 37 conditions per place. [2022-12-05 18:44:28,753 INFO L137 encePairwiseOnDemand]: 828/838 looper letters, 48 selfloop transitions, 9 changer transitions 0/810 dead transitions. [2022-12-05 18:44:28,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 787 places, 810 transitions, 1774 flow [2022-12-05 18:44:28,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 18:44:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 18:44:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 6210 transitions. [2022-12-05 18:44:28,766 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9263126491646778 [2022-12-05 18:44:28,766 INFO L175 Difference]: Start difference. First operand has 785 places, 797 transitions, 1630 flow. Second operand 8 states and 6210 transitions. [2022-12-05 18:44:28,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 787 places, 810 transitions, 1774 flow [2022-12-05 18:44:28,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 772 places, 810 transitions, 1742 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-05 18:44:28,780 INFO L231 Difference]: Finished difference. Result has 773 places, 799 transitions, 1633 flow [2022-12-05 18:44:28,781 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1594, PETRI_DIFFERENCE_MINUEND_PLACES=765, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=795, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1633, PETRI_PLACES=773, PETRI_TRANSITIONS=799} [2022-12-05 18:44:28,781 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, -5 predicate places. [2022-12-05 18:44:28,781 INFO L495 AbstractCegarLoop]: Abstraction has has 773 places, 799 transitions, 1633 flow [2022-12-05 18:44:28,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 773.6666666666666) internal successors, (4642), 6 states have internal predecessors, (4642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:28,784 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:28,784 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:28,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:44:28,784 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 2 more)] === [2022-12-05 18:44:28,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:28,786 INFO L85 PathProgramCache]: Analyzing trace with hash -675145419, now seen corresponding path program 1 times [2022-12-05 18:44:28,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:28,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915655559] [2022-12-05 18:44:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:28,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:29,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:29,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915655559] [2022-12-05 18:44:29,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915655559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:29,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:29,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:44:29,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925797997] [2022-12-05 18:44:29,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:29,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:44:29,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:29,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:44:29,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:44:29,198 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 789 out of 838 [2022-12-05 18:44:29,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 773 places, 799 transitions, 1633 flow. Second operand has 5 states, 5 states have (on average 790.4) internal successors, (3952), 5 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:29,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:29,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 789 of 838 [2022-12-05 18:44:29,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:29,488 INFO L130 PetriNetUnfolder]: 105/1872 cut-off events. [2022-12-05 18:44:29,489 INFO L131 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2022-12-05 18:44:29,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 1872 events. 105/1872 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 6165 event pairs, 3 based on Foata normal form. 0/1762 useless extension candidates. Maximal degree in co-relation 707. Up to 20 conditions per place. [2022-12-05 18:44:29,503 INFO L137 encePairwiseOnDemand]: 831/838 looper letters, 27 selfloop transitions, 6 changer transitions 0/807 dead transitions. [2022-12-05 18:44:29,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 778 places, 807 transitions, 1719 flow [2022-12-05 18:44:29,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:44:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:44:29,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4767 transitions. [2022-12-05 18:44:29,509 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.948090692124105 [2022-12-05 18:44:29,509 INFO L175 Difference]: Start difference. First operand has 773 places, 799 transitions, 1633 flow. Second operand 6 states and 4767 transitions. [2022-12-05 18:44:29,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 778 places, 807 transitions, 1719 flow [2022-12-05 18:44:29,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 773 places, 807 transitions, 1710 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 18:44:29,521 INFO L231 Difference]: Finished difference. Result has 774 places, 800 transitions, 1644 flow [2022-12-05 18:44:29,522 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1624, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=799, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=793, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1644, PETRI_PLACES=774, PETRI_TRANSITIONS=800} [2022-12-05 18:44:29,523 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, -4 predicate places. [2022-12-05 18:44:29,523 INFO L495 AbstractCegarLoop]: Abstraction has has 774 places, 800 transitions, 1644 flow [2022-12-05 18:44:29,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 790.4) internal successors, (3952), 5 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:29,526 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:29,526 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:29,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:44:29,526 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 2 more)] === [2022-12-05 18:44:29,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:29,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1420303379, now seen corresponding path program 1 times [2022-12-05 18:44:29,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:29,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642404411] [2022-12-05 18:44:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:29,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:30,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:30,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642404411] [2022-12-05 18:44:30,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642404411] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:30,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731524440] [2022-12-05 18:44:30,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:30,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:30,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:30,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:44:30,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 18:44:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:30,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-05 18:44:30,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:30,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:44:30,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:44:30,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:30,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731524440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:30,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:30,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-05 18:44:30,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032819136] [2022-12-05 18:44:30,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:30,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:44:30,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:30,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:44:30,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-05 18:44:30,534 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 757 out of 838 [2022-12-05 18:44:30,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 774 places, 800 transitions, 1644 flow. Second operand has 7 states, 7 states have (on average 762.0) internal successors, (5334), 7 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:30,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:30,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 757 of 838 [2022-12-05 18:44:30,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:33,165 INFO L130 PetriNetUnfolder]: 1914/15705 cut-off events. [2022-12-05 18:44:33,166 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-12-05 18:44:33,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17861 conditions, 15705 events. 1914/15705 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 144968 event pairs, 225 based on Foata normal form. 0/14357 useless extension candidates. Maximal degree in co-relation 17636. Up to 870 conditions per place. [2022-12-05 18:44:33,247 INFO L137 encePairwiseOnDemand]: 827/838 looper letters, 102 selfloop transitions, 31 changer transitions 0/874 dead transitions. [2022-12-05 18:44:33,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 786 places, 874 transitions, 2082 flow [2022-12-05 18:44:33,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:44:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:44:33,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 9972 transitions. [2022-12-05 18:44:33,260 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9153662566550395 [2022-12-05 18:44:33,260 INFO L175 Difference]: Start difference. First operand has 774 places, 800 transitions, 1644 flow. Second operand 13 states and 9972 transitions. [2022-12-05 18:44:33,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 786 places, 874 transitions, 2082 flow [2022-12-05 18:44:33,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 782 places, 874 transitions, 2072 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 18:44:33,275 INFO L231 Difference]: Finished difference. Result has 787 places, 838 transitions, 1835 flow [2022-12-05 18:44:33,276 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1634, PETRI_DIFFERENCE_MINUEND_PLACES=770, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=790, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1835, PETRI_PLACES=787, PETRI_TRANSITIONS=838} [2022-12-05 18:44:33,277 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 9 predicate places. [2022-12-05 18:44:33,277 INFO L495 AbstractCegarLoop]: Abstraction has has 787 places, 838 transitions, 1835 flow [2022-12-05 18:44:33,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 762.0) internal successors, (5334), 7 states have internal predecessors, (5334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:33,280 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:33,280 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:33,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-05 18:44:33,487 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 [2022-12-05 18:44:33,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 2 more)] === [2022-12-05 18:44:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:33,489 INFO L85 PathProgramCache]: Analyzing trace with hash 932871335, now seen corresponding path program 1 times [2022-12-05 18:44:33,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:33,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472012927] [2022-12-05 18:44:33,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:33,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:34,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:34,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472012927] [2022-12-05 18:44:34,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472012927] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:34,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284363027] [2022-12-05 18:44:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:34,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:34,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:34,011 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:44:34,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 18:44:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:34,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 85 conjunts are in the unsatisfiable core [2022-12-05 18:44:34,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:34,690 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:44:34,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:44:34,716 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:34,717 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 [2022-12-05 18:44:34,763 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:44:34,763 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 [2022-12-05 18:44:34,809 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:44:34,809 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 [2022-12-05 18:44:34,863 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:34,865 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 [2022-12-05 18:44:34,903 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:34,904 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 [2022-12-05 18:44:34,938 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:34,938 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 [2022-12-05 18:44:34,974 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:34,974 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 [2022-12-05 18:44:35,009 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,009 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 [2022-12-05 18:44:35,061 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,061 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 [2022-12-05 18:44:35,096 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,096 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 [2022-12-05 18:44:35,128 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,128 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 [2022-12-05 18:44:35,228 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-05 18:44:35,229 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 3 case distinctions, treesize of input 21 treesize of output 42 [2022-12-05 18:44:35,276 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,277 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 [2022-12-05 18:44:35,328 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,329 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 [2022-12-05 18:44:35,367 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,367 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 [2022-12-05 18:44:35,408 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,408 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 [2022-12-05 18:44:35,442 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,444 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 [2022-12-05 18:44:35,487 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,488 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 [2022-12-05 18:44:35,524 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:35,524 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 [2022-12-05 18:44:35,600 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:44:35,602 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 [2022-12-05 18:44:35,741 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:44:35,741 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 25 [2022-12-05 18:44:35,857 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:44:35,858 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 [2022-12-05 18:44:36,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:44:36,216 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:44:36,216 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 [2022-12-05 18:44:36,238 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:44:36,238 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 [2022-12-05 18:44:36,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:44:36,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:44:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:44:36,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:36,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284363027] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:36,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:36,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:44:36,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736467698] [2022-12-05 18:44:36,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:36,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:44:36,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:36,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:44:36,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:44:36,432 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 699 out of 838 [2022-12-05 18:44:36,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 787 places, 838 transitions, 1835 flow. Second operand has 16 states, 16 states have (on average 704.25) internal successors, (11268), 16 states have internal predecessors, (11268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:36,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:36,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 699 of 838 [2022-12-05 18:44:36,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:39,652 INFO L130 PetriNetUnfolder]: 1730/16162 cut-off events. [2022-12-05 18:44:39,652 INFO L131 PetriNetUnfolder]: For 653/2893 co-relation queries the response was YES. [2022-12-05 18:44:39,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18603 conditions, 16162 events. 1730/16162 cut-off events. For 653/2893 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 168935 event pairs, 110 based on Foata normal form. 262/15158 useless extension candidates. Maximal degree in co-relation 18332. Up to 378 conditions per place. [2022-12-05 18:44:39,712 INFO L137 encePairwiseOnDemand]: 819/838 looper letters, 144 selfloop transitions, 45 changer transitions 15/893 dead transitions. [2022-12-05 18:44:39,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 806 places, 893 transitions, 2417 flow [2022-12-05 18:44:39,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 18:44:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 18:44:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 14155 transitions. [2022-12-05 18:44:39,728 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8445704057279236 [2022-12-05 18:44:39,728 INFO L175 Difference]: Start difference. First operand has 787 places, 838 transitions, 1835 flow. Second operand 20 states and 14155 transitions. [2022-12-05 18:44:39,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 806 places, 893 transitions, 2417 flow [2022-12-05 18:44:39,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 806 places, 893 transitions, 2417 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 18:44:39,741 INFO L231 Difference]: Finished difference. Result has 815 places, 846 transitions, 2036 flow [2022-12-05 18:44:39,742 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1835, PETRI_DIFFERENCE_MINUEND_PLACES=787, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=838, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2036, PETRI_PLACES=815, PETRI_TRANSITIONS=846} [2022-12-05 18:44:39,743 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 37 predicate places. [2022-12-05 18:44:39,743 INFO L495 AbstractCegarLoop]: Abstraction has has 815 places, 846 transitions, 2036 flow [2022-12-05 18:44:39,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 704.25) internal successors, (11268), 16 states have internal predecessors, (11268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:39,748 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:39,748 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:39,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 18:44:39,955 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 [2022-12-05 18:44:39,956 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 2 more)] === [2022-12-05 18:44:39,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:39,956 INFO L85 PathProgramCache]: Analyzing trace with hash 462775899, now seen corresponding path program 1 times [2022-12-05 18:44:39,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:39,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654148776] [2022-12-05 18:44:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:39,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:40,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:40,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:40,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654148776] [2022-12-05 18:44:40,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654148776] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:40,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231506343] [2022-12-05 18:44:40,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:40,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:40,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:40,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:44:40,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 18:44:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:40,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-05 18:44:40,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:41,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:44:41,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:44:41,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:44:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:44:41,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:41,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231506343] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:41,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:41,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-12-05 18:44:41,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172145625] [2022-12-05 18:44:41,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:41,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:44:41,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:41,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:44:41,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:44:41,423 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 838 [2022-12-05 18:44:41,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 815 places, 846 transitions, 2036 flow. Second operand has 12 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:41,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:41,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 838 [2022-12-05 18:44:41,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:44,427 INFO L130 PetriNetUnfolder]: 2648/17458 cut-off events. [2022-12-05 18:44:44,428 INFO L131 PetriNetUnfolder]: For 3030/3066 co-relation queries the response was YES. [2022-12-05 18:44:44,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23293 conditions, 17458 events. 2648/17458 cut-off events. For 3030/3066 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 178029 event pairs, 190 based on Foata normal form. 20/16180 useless extension candidates. Maximal degree in co-relation 23049. Up to 1104 conditions per place. [2022-12-05 18:44:44,553 INFO L137 encePairwiseOnDemand]: 825/838 looper letters, 125 selfloop transitions, 44 changer transitions 58/963 dead transitions. [2022-12-05 18:44:44,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 831 places, 963 transitions, 3078 flow [2022-12-05 18:44:44,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-05 18:44:44,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-05 18:44:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 12937 transitions. [2022-12-05 18:44:44,786 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9081145584725537 [2022-12-05 18:44:44,786 INFO L175 Difference]: Start difference. First operand has 815 places, 846 transitions, 2036 flow. Second operand 17 states and 12937 transitions. [2022-12-05 18:44:44,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 831 places, 963 transitions, 3078 flow [2022-12-05 18:44:44,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 818 places, 963 transitions, 2949 flow, removed 19 selfloop flow, removed 13 redundant places. [2022-12-05 18:44:44,822 INFO L231 Difference]: Finished difference. Result has 824 places, 857 transitions, 2180 flow [2022-12-05 18:44:44,823 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1971, PETRI_DIFFERENCE_MINUEND_PLACES=802, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=814, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2180, PETRI_PLACES=824, PETRI_TRANSITIONS=857} [2022-12-05 18:44:44,825 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 46 predicate places. [2022-12-05 18:44:44,825 INFO L495 AbstractCegarLoop]: Abstraction has has 824 places, 857 transitions, 2180 flow [2022-12-05 18:44:44,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:44,828 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:44,828 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:44,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-05 18:44:45,035 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 [2022-12-05 18:44:45,036 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 2 more)] === [2022-12-05 18:44:45,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:45,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1972472879, now seen corresponding path program 2 times [2022-12-05 18:44:45,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:45,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858821326] [2022-12-05 18:44:45,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:45,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:45,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:45,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858821326] [2022-12-05 18:44:45,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858821326] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:45,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556521213] [2022-12-05 18:44:45,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:44:45,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:45,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:45,433 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:44:45,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-05 18:44:45,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 18:44:45,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:44:45,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-05 18:44:45,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:46,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:44:46,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:44:46,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:44:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:44:46,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:46,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556521213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:46,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:46,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-12-05 18:44:46,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108734818] [2022-12-05 18:44:46,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:46,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:44:46,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:46,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:44:46,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:44:46,506 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 838 [2022-12-05 18:44:46,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 824 places, 857 transitions, 2180 flow. Second operand has 12 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:46,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:46,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 838 [2022-12-05 18:44:46,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:48,909 INFO L130 PetriNetUnfolder]: 1862/12422 cut-off events. [2022-12-05 18:44:48,910 INFO L131 PetriNetUnfolder]: For 3205/3289 co-relation queries the response was YES. [2022-12-05 18:44:48,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17374 conditions, 12422 events. 1862/12422 cut-off events. For 3205/3289 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 116852 event pairs, 452 based on Foata normal form. 20/11520 useless extension candidates. Maximal degree in co-relation 17134. Up to 1117 conditions per place. [2022-12-05 18:44:48,987 INFO L137 encePairwiseOnDemand]: 823/838 looper letters, 156 selfloop transitions, 55 changer transitions 1/948 dead transitions. [2022-12-05 18:44:48,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 846 places, 948 transitions, 2909 flow [2022-12-05 18:44:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-05 18:44:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-05 18:44:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 17475 transitions. [2022-12-05 18:44:49,001 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9066618242191553 [2022-12-05 18:44:49,001 INFO L175 Difference]: Start difference. First operand has 824 places, 857 transitions, 2180 flow. Second operand 23 states and 17475 transitions. [2022-12-05 18:44:49,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 846 places, 948 transitions, 2909 flow [2022-12-05 18:44:49,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 834 places, 948 transitions, 2850 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-12-05 18:44:49,022 INFO L231 Difference]: Finished difference. Result has 842 places, 879 transitions, 2453 flow [2022-12-05 18:44:49,023 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=2132, PETRI_DIFFERENCE_MINUEND_PLACES=812, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=814, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2453, PETRI_PLACES=842, PETRI_TRANSITIONS=879} [2022-12-05 18:44:49,023 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 64 predicate places. [2022-12-05 18:44:49,023 INFO L495 AbstractCegarLoop]: Abstraction has has 842 places, 879 transitions, 2453 flow [2022-12-05 18:44:49,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:49,025 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:49,025 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:49,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-05 18:44:49,231 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 [2022-12-05 18:44:49,232 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 2 more)] === [2022-12-05 18:44:49,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:49,232 INFO L85 PathProgramCache]: Analyzing trace with hash -672167313, now seen corresponding path program 3 times [2022-12-05 18:44:49,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:49,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135765527] [2022-12-05 18:44:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:49,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:49,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:49,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135765527] [2022-12-05 18:44:49,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135765527] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:49,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328205510] [2022-12-05 18:44:49,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 18:44:49,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:49,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:49,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:44:49,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-05 18:44:49,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-05 18:44:49,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:44:49,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-05 18:44:49,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:50,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:44:50,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:44:50,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:44:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:44:50,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:50,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328205510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:50,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:50,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-12-05 18:44:50,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077025719] [2022-12-05 18:44:50,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:50,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:44:50,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:50,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:44:50,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:44:50,459 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 838 [2022-12-05 18:44:50,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 842 places, 879 transitions, 2453 flow. Second operand has 12 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:50,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:50,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 838 [2022-12-05 18:44:50,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:53,723 INFO L130 PetriNetUnfolder]: 2214/14696 cut-off events. [2022-12-05 18:44:53,724 INFO L131 PetriNetUnfolder]: For 5795/6051 co-relation queries the response was YES. [2022-12-05 18:44:53,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21361 conditions, 14696 events. 2214/14696 cut-off events. For 5795/6051 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 144837 event pairs, 238 based on Foata normal form. 20/13582 useless extension candidates. Maximal degree in co-relation 21114. Up to 1416 conditions per place. [2022-12-05 18:44:53,821 INFO L137 encePairwiseOnDemand]: 824/838 looper letters, 184 selfloop transitions, 50 changer transitions 7/977 dead transitions. [2022-12-05 18:44:53,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 864 places, 977 transitions, 3404 flow [2022-12-05 18:44:53,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-05 18:44:53,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-05 18:44:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 17471 transitions. [2022-12-05 18:44:53,832 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9064542907543841 [2022-12-05 18:44:53,832 INFO L175 Difference]: Start difference. First operand has 842 places, 879 transitions, 2453 flow. Second operand 23 states and 17471 transitions. [2022-12-05 18:44:53,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 864 places, 977 transitions, 3404 flow [2022-12-05 18:44:53,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 857 places, 977 transitions, 3327 flow, removed 23 selfloop flow, removed 7 redundant places. [2022-12-05 18:44:53,861 INFO L231 Difference]: Finished difference. Result has 870 places, 900 transitions, 2800 flow [2022-12-05 18:44:53,861 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=2382, PETRI_DIFFERENCE_MINUEND_PLACES=835, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=879, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2800, PETRI_PLACES=870, PETRI_TRANSITIONS=900} [2022-12-05 18:44:53,862 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 92 predicate places. [2022-12-05 18:44:53,862 INFO L495 AbstractCegarLoop]: Abstraction has has 870 places, 900 transitions, 2800 flow [2022-12-05 18:44:53,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:53,864 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:53,864 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:53,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-05 18:44:54,086 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 [2022-12-05 18:44:54,087 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 2 more)] === [2022-12-05 18:44:54,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1792978445, now seen corresponding path program 4 times [2022-12-05 18:44:54,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:54,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913004512] [2022-12-05 18:44:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:54,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:54,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:54,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913004512] [2022-12-05 18:44:54,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913004512] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:54,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433284927] [2022-12-05 18:44:54,455 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-05 18:44:54,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:54,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:54,456 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:44:54,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-05 18:44:54,834 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-05 18:44:54,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:44:54,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-05 18:44:54,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:55,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:44:55,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:44:55,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:44:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:44:55,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:55,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433284927] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:55,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:55,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-05 18:44:55,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121736026] [2022-12-05 18:44:55,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:55,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:44:55,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:55,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:44:55,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:44:55,612 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 838 [2022-12-05 18:44:55,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 870 places, 900 transitions, 2800 flow. Second operand has 14 states, 14 states have (on average 750.2857142857143) internal successors, (10504), 14 states have internal predecessors, (10504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:55,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:55,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 838 [2022-12-05 18:44:55,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:59,689 INFO L130 PetriNetUnfolder]: 2600/17166 cut-off events. [2022-12-05 18:44:59,689 INFO L131 PetriNetUnfolder]: For 9573/9851 co-relation queries the response was YES. [2022-12-05 18:44:59,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25681 conditions, 17166 events. 2600/17166 cut-off events. For 9573/9851 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 177258 event pairs, 676 based on Foata normal form. 60/15898 useless extension candidates. Maximal degree in co-relation 25416. Up to 1641 conditions per place. [2022-12-05 18:44:59,794 INFO L137 encePairwiseOnDemand]: 821/838 looper letters, 180 selfloop transitions, 87 changer transitions 8/1007 dead transitions. [2022-12-05 18:44:59,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 895 places, 1007 transitions, 3903 flow [2022-12-05 18:44:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-05 18:44:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-05 18:44:59,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 19611 transitions. [2022-12-05 18:44:59,803 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9000826142830917 [2022-12-05 18:44:59,803 INFO L175 Difference]: Start difference. First operand has 870 places, 900 transitions, 2800 flow. Second operand 26 states and 19611 transitions. [2022-12-05 18:44:59,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 895 places, 1007 transitions, 3903 flow [2022-12-05 18:44:59,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 882 places, 1007 transitions, 3768 flow, removed 40 selfloop flow, removed 13 redundant places. [2022-12-05 18:44:59,849 INFO L231 Difference]: Finished difference. Result has 894 places, 932 transitions, 3333 flow [2022-12-05 18:44:59,850 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=2678, PETRI_DIFFERENCE_MINUEND_PLACES=857, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=827, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=3333, PETRI_PLACES=894, PETRI_TRANSITIONS=932} [2022-12-05 18:44:59,850 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 116 predicate places. [2022-12-05 18:44:59,850 INFO L495 AbstractCegarLoop]: Abstraction has has 894 places, 932 transitions, 3333 flow [2022-12-05 18:44:59,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 750.2857142857143) internal successors, (10504), 14 states have internal predecessors, (10504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:59,852 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:59,852 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:59,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:00,059 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 [2022-12-05 18:45:00,060 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 2 more)] === [2022-12-05 18:45:00,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:00,060 INFO L85 PathProgramCache]: Analyzing trace with hash -878435385, now seen corresponding path program 5 times [2022-12-05 18:45:00,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:00,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860789456] [2022-12-05 18:45:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:00,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:00,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:00,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860789456] [2022-12-05 18:45:00,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860789456] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:00,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406857333] [2022-12-05 18:45:00,695 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-05 18:45:00,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:00,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:00,696 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:00,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-05 18:45:01,052 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 18:45:01,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:01,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-05 18:45:01,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:01,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:01,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:01,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:01,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:01,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406857333] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:01,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:01,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-12-05 18:45:01,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970618759] [2022-12-05 18:45:01,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:01,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:45:01,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:01,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:45:01,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:45:01,750 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 838 [2022-12-05 18:45:01,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 894 places, 932 transitions, 3333 flow. Second operand has 12 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:01,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:01,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 838 [2022-12-05 18:45:01,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:05,936 INFO L130 PetriNetUnfolder]: 2940/19010 cut-off events. [2022-12-05 18:45:05,936 INFO L131 PetriNetUnfolder]: For 14077/14617 co-relation queries the response was YES. [2022-12-05 18:45:06,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29848 conditions, 19010 events. 2940/19010 cut-off events. For 14077/14617 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 201837 event pairs, 676 based on Foata normal form. 112/17650 useless extension candidates. Maximal degree in co-relation 29576. Up to 1703 conditions per place. [2022-12-05 18:45:06,091 INFO L137 encePairwiseOnDemand]: 823/838 looper letters, 181 selfloop transitions, 105 changer transitions 8/1030 dead transitions. [2022-12-05 18:45:06,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 917 places, 1030 transitions, 4490 flow [2022-12-05 18:45:06,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-05 18:45:06,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-05 18:45:06,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 18234 transitions. [2022-12-05 18:45:06,112 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9066229116945107 [2022-12-05 18:45:06,112 INFO L175 Difference]: Start difference. First operand has 894 places, 932 transitions, 3333 flow. Second operand 24 states and 18234 transitions. [2022-12-05 18:45:06,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 917 places, 1030 transitions, 4490 flow [2022-12-05 18:45:06,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 908 places, 1030 transitions, 4265 flow, removed 97 selfloop flow, removed 9 redundant places. [2022-12-05 18:45:06,184 INFO L231 Difference]: Finished difference. Result has 917 places, 956 transitions, 3814 flow [2022-12-05 18:45:06,185 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3184, PETRI_DIFFERENCE_MINUEND_PLACES=885, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=835, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3814, PETRI_PLACES=917, PETRI_TRANSITIONS=956} [2022-12-05 18:45:06,185 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 139 predicate places. [2022-12-05 18:45:06,186 INFO L495 AbstractCegarLoop]: Abstraction has has 917 places, 956 transitions, 3814 flow [2022-12-05 18:45:06,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 755.5) internal successors, (9066), 12 states have internal predecessors, (9066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:06,187 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:06,187 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:06,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-05 18:45:06,394 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 [2022-12-05 18:45:06,395 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 2 more)] === [2022-12-05 18:45:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1578199673, now seen corresponding path program 6 times [2022-12-05 18:45:06,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:06,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760054948] [2022-12-05 18:45:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:06,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:06,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:06,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760054948] [2022-12-05 18:45:06,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760054948] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:06,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652457384] [2022-12-05 18:45:06,872 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-05 18:45:06,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:06,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:06,888 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) [2022-12-05 18:45:06,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-05 18:45:07,392 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-05 18:45:07,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:07,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 87 conjunts are in the unsatisfiable core [2022-12-05 18:45:07,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:07,665 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,665 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 [2022-12-05 18:45:07,704 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,705 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 [2022-12-05 18:45:07,744 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:45:07,744 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 [2022-12-05 18:45:07,778 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,778 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 [2022-12-05 18:45:07,808 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,808 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 [2022-12-05 18:45:07,840 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,841 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 [2022-12-05 18:45:07,872 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,872 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 [2022-12-05 18:45:07,901 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,901 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 [2022-12-05 18:45:07,932 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,933 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 [2022-12-05 18:45:07,963 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,963 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 [2022-12-05 18:45:07,992 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:07,993 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 [2022-12-05 18:45:08,023 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:08,023 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 [2022-12-05 18:45:08,053 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:08,053 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 [2022-12-05 18:45:08,083 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:08,084 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 [2022-12-05 18:45:08,128 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:08,128 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 [2022-12-05 18:45:08,179 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:45:08,179 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 [2022-12-05 18:45:08,206 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:08,206 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 [2022-12-05 18:45:08,245 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:45:08,245 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 [2022-12-05 18:45:08,278 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:08,278 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 [2022-12-05 18:45:08,307 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:08,307 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 [2022-12-05 18:45:08,338 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:08,338 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 [2022-12-05 18:45:08,471 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:08,472 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 25 [2022-12-05 18:45:08,589 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:45:08,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-05 18:45:08,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:09,008 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:45:09,008 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 [2022-12-05 18:45:09,029 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:09,030 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 [2022-12-05 18:45:09,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:09,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:09,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:09,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:09,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:09,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:09,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652457384] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:09,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:09,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2022-12-05 18:45:09,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495400406] [2022-12-05 18:45:09,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:09,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-05 18:45:09,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:09,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-05 18:45:09,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2022-12-05 18:45:09,365 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 838 [2022-12-05 18:45:09,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 917 places, 956 transitions, 3814 flow. Second operand has 19 states, 19 states have (on average 698.7368421052631) internal successors, (13276), 19 states have internal predecessors, (13276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:09,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:09,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 838 [2022-12-05 18:45:09,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:14,653 INFO L130 PetriNetUnfolder]: 3122/20170 cut-off events. [2022-12-05 18:45:14,653 INFO L131 PetriNetUnfolder]: For 16903/17507 co-relation queries the response was YES. [2022-12-05 18:45:14,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32284 conditions, 20170 events. 3122/20170 cut-off events. For 16903/17507 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 217459 event pairs, 580 based on Foata normal form. 160/18762 useless extension candidates. Maximal degree in co-relation 31961. Up to 1480 conditions per place. [2022-12-05 18:45:14,865 INFO L137 encePairwiseOnDemand]: 817/838 looper letters, 227 selfloop transitions, 136 changer transitions 1/1048 dead transitions. [2022-12-05 18:45:14,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 1048 transitions, 5001 flow [2022-12-05 18:45:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-05 18:45:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-05 18:45:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 20364 transitions. [2022-12-05 18:45:14,875 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8379557238087401 [2022-12-05 18:45:14,875 INFO L175 Difference]: Start difference. First operand has 917 places, 956 transitions, 3814 flow. Second operand 29 states and 20364 transitions. [2022-12-05 18:45:14,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 1048 transitions, 5001 flow [2022-12-05 18:45:15,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 1048 transitions, 4815 flow, removed 56 selfloop flow, removed 11 redundant places. [2022-12-05 18:45:15,096 INFO L231 Difference]: Finished difference. Result has 940 places, 980 transitions, 4318 flow [2022-12-05 18:45:15,097 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3642, PETRI_DIFFERENCE_MINUEND_PLACES=906, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=834, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=4318, PETRI_PLACES=940, PETRI_TRANSITIONS=980} [2022-12-05 18:45:15,098 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 162 predicate places. [2022-12-05 18:45:15,098 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 980 transitions, 4318 flow [2022-12-05 18:45:15,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 698.7368421052631) internal successors, (13276), 19 states have internal predecessors, (13276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:15,100 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:15,100 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:15,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-05 18:45:15,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-05 18:45:15,308 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 2 more)] === [2022-12-05 18:45:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash 520654215, now seen corresponding path program 7 times [2022-12-05 18:45:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:15,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145308799] [2022-12-05 18:45:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:15,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:15,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145308799] [2022-12-05 18:45:15,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145308799] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061806206] [2022-12-05 18:45:15,601 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-05 18:45:15,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:15,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:15,617 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:15,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-05 18:45:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:16,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 90 conjunts are in the unsatisfiable core [2022-12-05 18:45:16,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:16,336 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:16,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:16,363 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:45:16,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:45:16,384 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,385 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 [2022-12-05 18:45:16,425 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,426 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 [2022-12-05 18:45:16,454 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,454 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 [2022-12-05 18:45:16,486 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,486 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 [2022-12-05 18:45:16,516 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,516 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 [2022-12-05 18:45:16,554 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,554 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 [2022-12-05 18:45:16,591 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,591 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 [2022-12-05 18:45:16,624 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,624 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 [2022-12-05 18:45:16,655 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,656 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 [2022-12-05 18:45:16,688 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,688 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 [2022-12-05 18:45:16,725 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:45:16,725 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 [2022-12-05 18:45:16,745 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,745 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 [2022-12-05 18:45:16,770 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,770 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 [2022-12-05 18:45:16,796 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,799 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 [2022-12-05 18:45:16,826 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,826 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 [2022-12-05 18:45:16,860 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,860 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 [2022-12-05 18:45:16,881 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:45:16,881 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 [2022-12-05 18:45:16,940 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-05 18:45:16,940 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 3 case distinctions, treesize of input 21 treesize of output 42 [2022-12-05 18:45:16,975 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:45:16,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-05 18:45:17,372 INFO L321 Elim1Store]: treesize reduction 62, result has 41.5 percent of original size [2022-12-05 18:45:17,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 37 treesize of output 71 [2022-12-05 18:45:17,884 INFO L321 Elim1Store]: treesize reduction 30, result has 63.4 percent of original size [2022-12-05 18:45:17,884 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 40 treesize of output 84 [2022-12-05 18:45:18,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:18,508 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:45:18,508 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 [2022-12-05 18:45:18,528 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:45:18,529 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 [2022-12-05 18:45:18,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:18,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:18,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:18,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:18,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:18,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061806206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:18,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:18,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2022-12-05 18:45:18,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278883970] [2022-12-05 18:45:18,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:18,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-05 18:45:18,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:18,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-05 18:45:18,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2022-12-05 18:45:18,899 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 838 [2022-12-05 18:45:18,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 980 transitions, 4318 flow. Second operand has 22 states, 22 states have (on average 698.0909090909091) internal successors, (15358), 22 states have internal predecessors, (15358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:18,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:18,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 838 [2022-12-05 18:45:18,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:25,345 INFO L130 PetriNetUnfolder]: 3348/22074 cut-off events. [2022-12-05 18:45:25,346 INFO L131 PetriNetUnfolder]: For 21277/22169 co-relation queries the response was YES. [2022-12-05 18:45:25,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35933 conditions, 22074 events. 3348/22074 cut-off events. For 21277/22169 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 244330 event pairs, 718 based on Foata normal form. 196/20578 useless extension candidates. Maximal degree in co-relation 35601. Up to 1704 conditions per place. [2022-12-05 18:45:25,538 INFO L137 encePairwiseOnDemand]: 815/838 looper letters, 237 selfloop transitions, 142 changer transitions 16/1079 dead transitions. [2022-12-05 18:45:25,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 970 places, 1079 transitions, 5757 flow [2022-12-05 18:45:25,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-05 18:45:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-05 18:45:25,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 21751 transitions. [2022-12-05 18:45:25,548 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8372853953345138 [2022-12-05 18:45:25,548 INFO L175 Difference]: Start difference. First operand has 940 places, 980 transitions, 4318 flow. Second operand 31 states and 21751 transitions. [2022-12-05 18:45:25,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 970 places, 1079 transitions, 5757 flow [2022-12-05 18:45:25,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 1079 transitions, 5495 flow, removed 99 selfloop flow, removed 13 redundant places. [2022-12-05 18:45:25,655 INFO L231 Difference]: Finished difference. Result has 966 places, 997 transitions, 4810 flow [2022-12-05 18:45:25,656 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=4145, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=980, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=4810, PETRI_PLACES=966, PETRI_TRANSITIONS=997} [2022-12-05 18:45:25,657 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 188 predicate places. [2022-12-05 18:45:25,657 INFO L495 AbstractCegarLoop]: Abstraction has has 966 places, 997 transitions, 4810 flow [2022-12-05 18:45:25,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 698.0909090909091) internal successors, (15358), 22 states have internal predecessors, (15358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:25,658 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:25,658 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:25,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:25,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:25,866 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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 2 more)] === [2022-12-05 18:45:25,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:25,867 INFO L85 PathProgramCache]: Analyzing trace with hash 864488339, now seen corresponding path program 1 times [2022-12-05 18:45:25,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:25,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219669907] [2022-12-05 18:45:25,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:25,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:26,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:26,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:26,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219669907] [2022-12-05 18:45:26,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219669907] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:26,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021099989] [2022-12-05 18:45:26,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:26,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:26,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:26,408 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:26,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-05 18:45:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:26,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-05 18:45:26,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:27,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:27,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:27,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:27,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:27,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:27,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:27,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021099989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:27,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:27,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-05 18:45:27,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90683309] [2022-12-05 18:45:27,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:27,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:45:27,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:27,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:45:27,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:45:27,923 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 838 [2022-12-05 18:45:27,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 966 places, 997 transitions, 4810 flow. Second operand has 14 states, 14 states have (on average 753.2857142857143) internal successors, (10546), 14 states have internal predecessors, (10546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:27,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:27,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 838 [2022-12-05 18:45:27,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:33,924 INFO L130 PetriNetUnfolder]: 4994/22786 cut-off events. [2022-12-05 18:45:33,924 INFO L131 PetriNetUnfolder]: For 35459/35783 co-relation queries the response was YES. [2022-12-05 18:45:34,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44091 conditions, 22786 events. 4994/22786 cut-off events. For 35459/35783 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 238441 event pairs, 2110 based on Foata normal form. 56/21106 useless extension candidates. Maximal degree in co-relation 43793. Up to 4469 conditions per place. [2022-12-05 18:45:34,131 INFO L137 encePairwiseOnDemand]: 821/838 looper letters, 229 selfloop transitions, 65 changer transitions 177/1205 dead transitions. [2022-12-05 18:45:34,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1012 places, 1205 transitions, 6851 flow [2022-12-05 18:45:34,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-05 18:45:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-05 18:45:34,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 35555 transitions. [2022-12-05 18:45:34,144 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.902731935205403 [2022-12-05 18:45:34,144 INFO L175 Difference]: Start difference. First operand has 966 places, 997 transitions, 4810 flow. Second operand 47 states and 35555 transitions. [2022-12-05 18:45:34,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1012 places, 1205 transitions, 6851 flow [2022-12-05 18:45:34,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 993 places, 1205 transitions, 6600 flow, removed 54 selfloop flow, removed 19 redundant places. [2022-12-05 18:45:34,287 INFO L231 Difference]: Finished difference. Result has 1007 places, 977 transitions, 4286 flow [2022-12-05 18:45:34,288 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=4599, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=997, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=4286, PETRI_PLACES=1007, PETRI_TRANSITIONS=977} [2022-12-05 18:45:34,289 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 229 predicate places. [2022-12-05 18:45:34,289 INFO L495 AbstractCegarLoop]: Abstraction has has 1007 places, 977 transitions, 4286 flow [2022-12-05 18:45:34,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 753.2857142857143) internal successors, (10546), 14 states have internal predecessors, (10546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:34,290 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:34,290 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:34,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:34,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-05 18:45:34,497 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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 2 more)] === [2022-12-05 18:45:34,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:34,498 INFO L85 PathProgramCache]: Analyzing trace with hash -735986797, now seen corresponding path program 2 times [2022-12-05 18:45:34,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:34,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402253974] [2022-12-05 18:45:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:34,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:34,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:34,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402253974] [2022-12-05 18:45:34,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402253974] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:34,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369653546] [2022-12-05 18:45:34,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:45:34,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:34,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:34,922 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:34,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-05 18:45:35,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 18:45:35,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:35,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-05 18:45:35,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:35,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:35,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:36,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:36,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:36,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:36,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:36,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369653546] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:36,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:36,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2022-12-05 18:45:36,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988640552] [2022-12-05 18:45:36,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:36,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:45:36,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:45:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-12-05 18:45:36,449 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 838 [2022-12-05 18:45:36,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1007 places, 977 transitions, 4286 flow. Second operand has 15 states, 15 states have (on average 753.0666666666667) internal successors, (11296), 15 states have internal predecessors, (11296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:36,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:36,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 838 [2022-12-05 18:45:36,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:41,659 INFO L130 PetriNetUnfolder]: 3886/18500 cut-off events. [2022-12-05 18:45:41,660 INFO L131 PetriNetUnfolder]: For 24931/25537 co-relation queries the response was YES. [2022-12-05 18:45:41,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35165 conditions, 18500 events. 3886/18500 cut-off events. For 24931/25537 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 183858 event pairs, 1638 based on Foata normal form. 264/17352 useless extension candidates. Maximal degree in co-relation 35019. Up to 3567 conditions per place. [2022-12-05 18:45:41,937 INFO L137 encePairwiseOnDemand]: 821/838 looper letters, 218 selfloop transitions, 60 changer transitions 109/1121 dead transitions. [2022-12-05 18:45:41,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1018 places, 1121 transitions, 5710 flow [2022-12-05 18:45:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-05 18:45:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-05 18:45:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 33261 transitions. [2022-12-05 18:45:41,950 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9020666088088523 [2022-12-05 18:45:41,951 INFO L175 Difference]: Start difference. First operand has 1007 places, 977 transitions, 4286 flow. Second operand 44 states and 33261 transitions. [2022-12-05 18:45:41,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1018 places, 1121 transitions, 5710 flow [2022-12-05 18:45:42,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 990 places, 1121 transitions, 5435 flow, removed 69 selfloop flow, removed 28 redundant places. [2022-12-05 18:45:42,066 INFO L231 Difference]: Finished difference. Result has 1007 places, 957 transitions, 3897 flow [2022-12-05 18:45:42,067 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=4075, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=977, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=917, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=3897, PETRI_PLACES=1007, PETRI_TRANSITIONS=957} [2022-12-05 18:45:42,067 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 229 predicate places. [2022-12-05 18:45:42,068 INFO L495 AbstractCegarLoop]: Abstraction has has 1007 places, 957 transitions, 3897 flow [2022-12-05 18:45:42,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 753.0666666666667) internal successors, (11296), 15 states have internal predecessors, (11296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:42,069 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:42,069 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:42,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:42,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-05 18:45:42,276 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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 2 more)] === [2022-12-05 18:45:42,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:42,277 INFO L85 PathProgramCache]: Analyzing trace with hash 906536907, now seen corresponding path program 3 times [2022-12-05 18:45:42,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:42,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000696415] [2022-12-05 18:45:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:42,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:42,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:42,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:42,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000696415] [2022-12-05 18:45:42,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000696415] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:42,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532851402] [2022-12-05 18:45:42,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 18:45:42,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:42,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:42,609 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:42,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-05 18:45:43,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-05 18:45:43,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:43,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-05 18:45:43,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:43,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:43,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:44,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:44,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:44,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:44,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:44,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532851402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:44,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:44,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2022-12-05 18:45:44,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118185991] [2022-12-05 18:45:44,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:44,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:45:44,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:44,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:45:44,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-12-05 18:45:44,059 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 838 [2022-12-05 18:45:44,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1007 places, 957 transitions, 3897 flow. Second operand has 15 states, 15 states have (on average 753.0666666666667) internal successors, (11296), 15 states have internal predecessors, (11296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:44,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:44,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 838 [2022-12-05 18:45:44,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:48,190 INFO L130 PetriNetUnfolder]: 3474/16532 cut-off events. [2022-12-05 18:45:48,190 INFO L131 PetriNetUnfolder]: For 34885/35527 co-relation queries the response was YES. [2022-12-05 18:45:48,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34925 conditions, 16532 events. 3474/16532 cut-off events. For 34885/35527 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 160045 event pairs, 1432 based on Foata normal form. 264/15574 useless extension candidates. Maximal degree in co-relation 34786. Up to 3109 conditions per place. [2022-12-05 18:45:48,344 INFO L137 encePairwiseOnDemand]: 821/838 looper letters, 260 selfloop transitions, 89 changer transitions 24/1107 dead transitions. [2022-12-05 18:45:48,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1107 transitions, 5409 flow [2022-12-05 18:45:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-05 18:45:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-05 18:45:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 32521 transitions. [2022-12-05 18:45:48,371 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9025087417439085 [2022-12-05 18:45:48,371 INFO L175 Difference]: Start difference. First operand has 1007 places, 957 transitions, 3897 flow. Second operand 43 states and 32521 transitions. [2022-12-05 18:45:48,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1107 transitions, 5409 flow [2022-12-05 18:45:48,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 970 places, 1107 transitions, 4787 flow, removed 210 selfloop flow, removed 54 redundant places. [2022-12-05 18:45:48,555 INFO L231 Difference]: Finished difference. Result has 975 places, 983 transitions, 3921 flow [2022-12-05 18:45:48,556 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3551, PETRI_DIFFERENCE_MINUEND_PLACES=928, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=3921, PETRI_PLACES=975, PETRI_TRANSITIONS=983} [2022-12-05 18:45:48,557 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 197 predicate places. [2022-12-05 18:45:48,557 INFO L495 AbstractCegarLoop]: Abstraction has has 975 places, 983 transitions, 3921 flow [2022-12-05 18:45:48,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 753.0666666666667) internal successors, (11296), 15 states have internal predecessors, (11296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:48,558 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:48,558 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:48,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:48,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-05 18:45:48,761 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 2 more)] === [2022-12-05 18:45:48,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:48,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1255964395, now seen corresponding path program 4 times [2022-12-05 18:45:48,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:48,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442856169] [2022-12-05 18:45:48,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:48,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:49,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:49,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442856169] [2022-12-05 18:45:49,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442856169] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:49,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103484252] [2022-12-05 18:45:49,240 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-05 18:45:49,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:49,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:49,241 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:49,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-05 18:45:49,708 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-05 18:45:49,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:49,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-05 18:45:49,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:50,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:50,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:50,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:50,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:50,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:50,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:50,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103484252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:50,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:50,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2022-12-05 18:45:50,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578083589] [2022-12-05 18:45:50,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:50,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 18:45:50,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 18:45:50,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:45:50,852 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 745 out of 838 [2022-12-05 18:45:50,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 975 places, 983 transitions, 3921 flow. Second operand has 16 states, 16 states have (on average 748.125) internal successors, (11970), 16 states have internal predecessors, (11970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:50,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:50,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 745 of 838 [2022-12-05 18:45:50,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:55,438 INFO L130 PetriNetUnfolder]: 3912/18430 cut-off events. [2022-12-05 18:45:55,439 INFO L131 PetriNetUnfolder]: For 18749/20027 co-relation queries the response was YES. [2022-12-05 18:45:55,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35178 conditions, 18430 events. 3912/18430 cut-off events. For 18749/20027 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 184566 event pairs, 1714 based on Foata normal form. 432/17468 useless extension candidates. Maximal degree in co-relation 34892. Up to 3465 conditions per place. [2022-12-05 18:45:55,592 INFO L137 encePairwiseOnDemand]: 819/838 looper letters, 217 selfloop transitions, 74 changer transitions 94/1115 dead transitions. [2022-12-05 18:45:55,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1007 places, 1115 transitions, 5690 flow [2022-12-05 18:45:55,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-05 18:45:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-05 18:45:55,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 24790 transitions. [2022-12-05 18:45:55,602 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8964345121863022 [2022-12-05 18:45:55,602 INFO L175 Difference]: Start difference. First operand has 975 places, 983 transitions, 3921 flow. Second operand 33 states and 24790 transitions. [2022-12-05 18:45:55,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1007 places, 1115 transitions, 5690 flow [2022-12-05 18:45:55,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 975 places, 1115 transitions, 5368 flow, removed 43 selfloop flow, removed 32 redundant places. [2022-12-05 18:45:55,698 INFO L231 Difference]: Finished difference. Result has 985 places, 977 transitions, 3858 flow [2022-12-05 18:45:55,699 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3730, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=983, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=913, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=3858, PETRI_PLACES=985, PETRI_TRANSITIONS=977} [2022-12-05 18:45:55,699 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 207 predicate places. [2022-12-05 18:45:55,699 INFO L495 AbstractCegarLoop]: Abstraction has has 985 places, 977 transitions, 3858 flow [2022-12-05 18:45:55,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 748.125) internal successors, (11970), 16 states have internal predecessors, (11970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:55,701 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:55,701 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:55,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:55,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-05 18:45:55,909 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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 2 more)] === [2022-12-05 18:45:55,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash -396707707, now seen corresponding path program 5 times [2022-12-05 18:45:55,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:55,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743592095] [2022-12-05 18:45:55,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:55,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:56,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:56,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743592095] [2022-12-05 18:45:56,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743592095] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327591957] [2022-12-05 18:45:56,250 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-05 18:45:56,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:56,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:56,251 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:45:56,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-05 18:45:56,684 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 18:45:56,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:45:56,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-05 18:45:56,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:45:57,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:57,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:57,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:45:57,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:45:57,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:45:57,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:45:57,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:45:57,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327591957] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:45:57,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:45:57,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2022-12-05 18:45:57,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377738479] [2022-12-05 18:45:57,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:45:57,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-05 18:45:57,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:45:57,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-05 18:45:57,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-12-05 18:45:57,785 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 838 [2022-12-05 18:45:57,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 985 places, 977 transitions, 3858 flow. Second operand has 14 states, 14 states have (on average 753.2857142857143) internal successors, (10546), 14 states have internal predecessors, (10546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:57,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:45:57,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 838 [2022-12-05 18:45:57,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:01,935 INFO L130 PetriNetUnfolder]: 3618/17998 cut-off events. [2022-12-05 18:46:01,935 INFO L131 PetriNetUnfolder]: For 16011/16883 co-relation queries the response was YES. [2022-12-05 18:46:02,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32062 conditions, 17998 events. 3618/17998 cut-off events. For 16011/16883 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 179656 event pairs, 1420 based on Foata normal form. 384/17048 useless extension candidates. Maximal degree in co-relation 31966. Up to 3097 conditions per place. [2022-12-05 18:46:02,087 INFO L137 encePairwiseOnDemand]: 821/838 looper letters, 201 selfloop transitions, 52 changer transitions 79/1066 dead transitions. [2022-12-05 18:46:02,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1000 places, 1066 transitions, 4947 flow [2022-12-05 18:46:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-05 18:46:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-05 18:46:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 21189 transitions. [2022-12-05 18:46:02,095 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9030429594272077 [2022-12-05 18:46:02,095 INFO L175 Difference]: Start difference. First operand has 985 places, 977 transitions, 3858 flow. Second operand 28 states and 21189 transitions. [2022-12-05 18:46:02,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1000 places, 1066 transitions, 4947 flow [2022-12-05 18:46:02,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 975 places, 1066 transitions, 4736 flow, removed 23 selfloop flow, removed 25 redundant places. [2022-12-05 18:46:02,193 INFO L231 Difference]: Finished difference. Result has 980 places, 938 transitions, 3465 flow [2022-12-05 18:46:02,194 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3694, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=977, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=925, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3465, PETRI_PLACES=980, PETRI_TRANSITIONS=938} [2022-12-05 18:46:02,207 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 202 predicate places. [2022-12-05 18:46:02,207 INFO L495 AbstractCegarLoop]: Abstraction has has 980 places, 938 transitions, 3465 flow [2022-12-05 18:46:02,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 753.2857142857143) internal successors, (10546), 14 states have internal predecessors, (10546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:02,209 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:02,209 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:02,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:02,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:02,417 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 2 more)] === [2022-12-05 18:46:02,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:02,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1422549073, now seen corresponding path program 6 times [2022-12-05 18:46:02,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:02,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464929742] [2022-12-05 18:46:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:02,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:03,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:03,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:03,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464929742] [2022-12-05 18:46:03,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464929742] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:03,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205065108] [2022-12-05 18:46:03,090 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-05 18:46:03,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:03,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:03,108 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:03,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-05 18:46:03,656 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-05 18:46:03,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:03,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-05 18:46:03,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:04,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:04,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:04,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:04,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:04,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205065108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:04,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:04,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-12-05 18:46:04,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876807900] [2022-12-05 18:46:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:04,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:46:04,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:04,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:46:04,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:46:04,351 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 838 [2022-12-05 18:46:04,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 980 places, 938 transitions, 3465 flow. Second operand has 12 states, 12 states have (on average 755.6666666666666) internal successors, (9068), 12 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:04,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:04,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 838 [2022-12-05 18:46:04,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:07,440 INFO L130 PetriNetUnfolder]: 2792/13606 cut-off events. [2022-12-05 18:46:07,441 INFO L131 PetriNetUnfolder]: For 14571/15381 co-relation queries the response was YES. [2022-12-05 18:46:07,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25305 conditions, 13606 events. 2792/13606 cut-off events. For 14571/15381 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 125746 event pairs, 308 based on Foata normal form. 14/12636 useless extension candidates. Maximal degree in co-relation 25148. Up to 1686 conditions per place. [2022-12-05 18:46:07,548 INFO L137 encePairwiseOnDemand]: 826/838 looper letters, 257 selfloop transitions, 18 changer transitions 39/1056 dead transitions. [2022-12-05 18:46:07,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 1056 transitions, 5145 flow [2022-12-05 18:46:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:46:07,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:46:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 9896 transitions. [2022-12-05 18:46:07,552 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9083899394161924 [2022-12-05 18:46:07,552 INFO L175 Difference]: Start difference. First operand has 980 places, 938 transitions, 3465 flow. Second operand 13 states and 9896 transitions. [2022-12-05 18:46:07,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 1056 transitions, 5145 flow [2022-12-05 18:46:07,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 923 places, 1056 transitions, 4804 flow, removed 46 selfloop flow, removed 36 redundant places. [2022-12-05 18:46:07,606 INFO L231 Difference]: Finished difference. Result has 930 places, 938 transitions, 3296 flow [2022-12-05 18:46:07,607 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3225, PETRI_DIFFERENCE_MINUEND_PLACES=911, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=920, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3296, PETRI_PLACES=930, PETRI_TRANSITIONS=938} [2022-12-05 18:46:07,607 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 152 predicate places. [2022-12-05 18:46:07,608 INFO L495 AbstractCegarLoop]: Abstraction has has 930 places, 938 transitions, 3296 flow [2022-12-05 18:46:07,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 755.6666666666666) internal successors, (9068), 12 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:07,609 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:07,609 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:07,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:07,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-05 18:46:07,816 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 2 more)] === [2022-12-05 18:46:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash 310838685, now seen corresponding path program 7 times [2022-12-05 18:46:07,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:07,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753757262] [2022-12-05 18:46:07,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:07,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:08,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:08,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753757262] [2022-12-05 18:46:08,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753757262] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:08,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430167380] [2022-12-05 18:46:08,177 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-05 18:46:08,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:08,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:08,205 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:08,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-05 18:46:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:08,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-05 18:46:08,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:09,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:09,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:09,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:09,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:09,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430167380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:09,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:09,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-12-05 18:46:09,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910668187] [2022-12-05 18:46:09,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:09,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:46:09,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:46:09,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:46:09,560 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 838 [2022-12-05 18:46:09,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 938 transitions, 3296 flow. Second operand has 12 states, 12 states have (on average 755.6666666666666) internal successors, (9068), 12 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:09,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:09,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 838 [2022-12-05 18:46:09,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:12,472 INFO L130 PetriNetUnfolder]: 2664/12368 cut-off events. [2022-12-05 18:46:12,472 INFO L131 PetriNetUnfolder]: For 13059/13815 co-relation queries the response was YES. [2022-12-05 18:46:12,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23562 conditions, 12368 events. 2664/12368 cut-off events. For 13059/13815 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 110796 event pairs, 258 based on Foata normal form. 14/11482 useless extension candidates. Maximal degree in co-relation 23282. Up to 2776 conditions per place. [2022-12-05 18:46:12,568 INFO L137 encePairwiseOnDemand]: 825/838 looper letters, 223 selfloop transitions, 15 changer transitions 48/1028 dead transitions. [2022-12-05 18:46:12,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 940 places, 1028 transitions, 4489 flow [2022-12-05 18:46:12,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-05 18:46:12,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-05 18:46:12,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 13668 transitions. [2022-12-05 18:46:12,574 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9061256961018298 [2022-12-05 18:46:12,574 INFO L175 Difference]: Start difference. First operand has 930 places, 938 transitions, 3296 flow. Second operand 18 states and 13668 transitions. [2022-12-05 18:46:12,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 940 places, 1028 transitions, 4489 flow [2022-12-05 18:46:12,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 930 places, 1028 transitions, 4406 flow, removed 28 selfloop flow, removed 10 redundant places. [2022-12-05 18:46:12,629 INFO L231 Difference]: Finished difference. Result has 942 places, 939 transitions, 3382 flow [2022-12-05 18:46:12,630 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3243, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3382, PETRI_PLACES=942, PETRI_TRANSITIONS=939} [2022-12-05 18:46:12,630 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 164 predicate places. [2022-12-05 18:46:12,630 INFO L495 AbstractCegarLoop]: Abstraction has has 942 places, 939 transitions, 3382 flow [2022-12-05 18:46:12,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 755.6666666666666) internal successors, (9068), 12 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:12,631 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:12,632 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:12,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:12,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:12,839 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 2 more)] === [2022-12-05 18:46:12,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:12,840 INFO L85 PathProgramCache]: Analyzing trace with hash -116744921, now seen corresponding path program 8 times [2022-12-05 18:46:12,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:12,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538223554] [2022-12-05 18:46:12,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:12,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:13,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:13,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538223554] [2022-12-05 18:46:13,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538223554] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:13,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10853812] [2022-12-05 18:46:13,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:46:13,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:13,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:13,218 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:13,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-05 18:46:13,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 18:46:13,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:13,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-05 18:46:13,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:14,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:14,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:14,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:14,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:14,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10853812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:14,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:14,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2022-12-05 18:46:14,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024758617] [2022-12-05 18:46:14,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:14,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-05 18:46:14,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:14,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-05 18:46:14,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-12-05 18:46:14,613 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 752 out of 838 [2022-12-05 18:46:14,615 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 942 places, 939 transitions, 3382 flow. Second operand has 12 states, 12 states have (on average 755.6666666666666) internal successors, (9068), 12 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:14,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:14,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 752 of 838 [2022-12-05 18:46:14,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:17,202 INFO L130 PetriNetUnfolder]: 2492/11768 cut-off events. [2022-12-05 18:46:17,202 INFO L131 PetriNetUnfolder]: For 13271/14327 co-relation queries the response was YES. [2022-12-05 18:46:17,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22216 conditions, 11768 events. 2492/11768 cut-off events. For 13271/14327 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 103840 event pairs, 258 based on Foata normal form. 14/10930 useless extension candidates. Maximal degree in co-relation 21930. Up to 2764 conditions per place. [2022-12-05 18:46:17,317 INFO L137 encePairwiseOnDemand]: 827/838 looper letters, 218 selfloop transitions, 9 changer transitions 29/998 dead transitions. [2022-12-05 18:46:17,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 998 transitions, 4277 flow [2022-12-05 18:46:17,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 18:46:17,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 18:46:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 10632 transitions. [2022-12-05 18:46:17,321 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9062393453801568 [2022-12-05 18:46:17,321 INFO L175 Difference]: Start difference. First operand has 942 places, 939 transitions, 3382 flow. Second operand 14 states and 10632 transitions. [2022-12-05 18:46:17,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 998 transitions, 4277 flow [2022-12-05 18:46:17,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 930 places, 998 transitions, 4213 flow, removed 21 selfloop flow, removed 15 redundant places. [2022-12-05 18:46:17,503 INFO L231 Difference]: Finished difference. Result has 936 places, 932 transitions, 3189 flow [2022-12-05 18:46:17,504 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3326, PETRI_DIFFERENCE_MINUEND_PLACES=917, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=930, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3189, PETRI_PLACES=936, PETRI_TRANSITIONS=932} [2022-12-05 18:46:17,504 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 158 predicate places. [2022-12-05 18:46:17,504 INFO L495 AbstractCegarLoop]: Abstraction has has 936 places, 932 transitions, 3189 flow [2022-12-05 18:46:17,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 755.6666666666666) internal successors, (9068), 12 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:17,505 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:17,505 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:17,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:17,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:17,706 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 2 more)] === [2022-12-05 18:46:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1543006789, now seen corresponding path program 9 times [2022-12-05 18:46:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:17,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296352111] [2022-12-05 18:46:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:17,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:18,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:18,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296352111] [2022-12-05 18:46:18,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296352111] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:18,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591878732] [2022-12-05 18:46:18,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 18:46:18,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:18,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:18,032 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:18,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-05 18:46:18,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-05 18:46:18,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:18,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-05 18:46:18,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:19,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:19,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:19,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:19,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:19,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:19,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:19,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591878732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:19,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:19,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2022-12-05 18:46:19,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138564049] [2022-12-05 18:46:19,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:19,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:46:19,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:19,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:46:19,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-12-05 18:46:19,643 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 838 [2022-12-05 18:46:19,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 932 transitions, 3189 flow. Second operand has 15 states, 15 states have (on average 753.0666666666667) internal successors, (11296), 15 states have internal predecessors, (11296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:19,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:19,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 838 [2022-12-05 18:46:19,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:23,412 INFO L130 PetriNetUnfolder]: 2966/15162 cut-off events. [2022-12-05 18:46:23,412 INFO L131 PetriNetUnfolder]: For 11445/12019 co-relation queries the response was YES. [2022-12-05 18:46:23,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26208 conditions, 15162 events. 2966/15162 cut-off events. For 11445/12019 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 145582 event pairs, 596 based on Foata normal form. 206/14306 useless extension candidates. Maximal degree in co-relation 26123. Up to 2320 conditions per place. [2022-12-05 18:46:23,526 INFO L137 encePairwiseOnDemand]: 823/838 looper letters, 195 selfloop transitions, 48 changer transitions 70/1047 dead transitions. [2022-12-05 18:46:23,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 1047 transitions, 4289 flow [2022-12-05 18:46:23,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-05 18:46:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-05 18:46:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 21946 transitions. [2022-12-05 18:46:23,534 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9030532466463665 [2022-12-05 18:46:23,534 INFO L175 Difference]: Start difference. First operand has 936 places, 932 transitions, 3189 flow. Second operand 29 states and 21946 transitions. [2022-12-05 18:46:23,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 1047 transitions, 4289 flow [2022-12-05 18:46:23,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 1047 transitions, 4224 flow, removed 14 selfloop flow, removed 13 redundant places. [2022-12-05 18:46:23,591 INFO L231 Difference]: Finished difference. Result has 956 places, 919 transitions, 3227 flow [2022-12-05 18:46:23,592 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3152, PETRI_DIFFERENCE_MINUEND_PLACES=911, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=884, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=3227, PETRI_PLACES=956, PETRI_TRANSITIONS=919} [2022-12-05 18:46:23,592 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 178 predicate places. [2022-12-05 18:46:23,592 INFO L495 AbstractCegarLoop]: Abstraction has has 956 places, 919 transitions, 3227 flow [2022-12-05 18:46:23,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 753.0666666666667) internal successors, (11296), 15 states have internal predecessors, (11296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:23,593 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:23,593 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:23,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:23,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:23,802 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 2 more)] === [2022-12-05 18:46:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash 589459205, now seen corresponding path program 10 times [2022-12-05 18:46:23,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302368390] [2022-12-05 18:46:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:24,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:24,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302368390] [2022-12-05 18:46:24,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302368390] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:24,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885127723] [2022-12-05 18:46:24,242 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-05 18:46:24,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:24,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:24,260 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:24,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-05 18:46:24,773 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-05 18:46:24,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:24,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-05 18:46:24,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:25,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:25,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:25,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:25,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:25,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:25,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:25,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885127723] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:25,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:25,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2022-12-05 18:46:25,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156080961] [2022-12-05 18:46:25,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:25,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 18:46:25,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:25,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 18:46:25,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2022-12-05 18:46:25,915 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 745 out of 838 [2022-12-05 18:46:25,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 956 places, 919 transitions, 3227 flow. Second operand has 17 states, 17 states have (on average 747.9411764705883) internal successors, (12715), 17 states have internal predecessors, (12715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:25,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:25,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 745 of 838 [2022-12-05 18:46:25,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:29,685 INFO L130 PetriNetUnfolder]: 2452/12822 cut-off events. [2022-12-05 18:46:29,686 INFO L131 PetriNetUnfolder]: For 22657/23313 co-relation queries the response was YES. [2022-12-05 18:46:29,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25323 conditions, 12822 events. 2452/12822 cut-off events. For 22657/23313 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 117718 event pairs, 524 based on Foata normal form. 238/12140 useless extension candidates. Maximal degree in co-relation 25059. Up to 1776 conditions per place. [2022-12-05 18:46:29,783 INFO L137 encePairwiseOnDemand]: 820/838 looper letters, 174 selfloop transitions, 66 changer transitions 51/1021 dead transitions. [2022-12-05 18:46:29,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 984 places, 1021 transitions, 4402 flow [2022-12-05 18:46:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-05 18:46:29,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-05 18:46:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 25524 transitions. [2022-12-05 18:46:29,793 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8958304085357294 [2022-12-05 18:46:29,793 INFO L175 Difference]: Start difference. First operand has 956 places, 919 transitions, 3227 flow. Second operand 34 states and 25524 transitions. [2022-12-05 18:46:29,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 984 places, 1021 transitions, 4402 flow [2022-12-05 18:46:29,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 1021 transitions, 4031 flow, removed 91 selfloop flow, removed 45 redundant places. [2022-12-05 18:46:29,885 INFO L231 Difference]: Finished difference. Result has 949 places, 920 transitions, 3210 flow [2022-12-05 18:46:29,885 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3014, PETRI_DIFFERENCE_MINUEND_PLACES=906, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=858, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3210, PETRI_PLACES=949, PETRI_TRANSITIONS=920} [2022-12-05 18:46:29,886 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 171 predicate places. [2022-12-05 18:46:29,886 INFO L495 AbstractCegarLoop]: Abstraction has has 949 places, 920 transitions, 3210 flow [2022-12-05 18:46:29,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 747.9411764705883) internal successors, (12715), 17 states have internal predecessors, (12715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:29,887 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:29,887 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:29,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:30,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:30,095 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 2 more)] === [2022-12-05 18:46:30,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:30,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1880814311, now seen corresponding path program 11 times [2022-12-05 18:46:30,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:30,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225472855] [2022-12-05 18:46:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:30,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:30,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:30,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225472855] [2022-12-05 18:46:30,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225472855] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:30,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128117460] [2022-12-05 18:46:30,417 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-05 18:46:30,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:30,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:30,418 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:30,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-05 18:46:30,922 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 18:46:30,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:30,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-05 18:46:30,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:31,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:31,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:32,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:46:32,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:32,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:32,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:32,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128117460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:32,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:32,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2022-12-05 18:46:32,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265759368] [2022-12-05 18:46:32,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:32,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:46:32,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:32,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:46:32,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-12-05 18:46:32,186 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 838 [2022-12-05 18:46:32,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 920 transitions, 3210 flow. Second operand has 15 states, 15 states have (on average 753.0666666666667) internal successors, (11296), 15 states have internal predecessors, (11296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:32,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:32,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 838 [2022-12-05 18:46:32,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:35,174 INFO L130 PetriNetUnfolder]: 2282/11966 cut-off events. [2022-12-05 18:46:35,174 INFO L131 PetriNetUnfolder]: For 14399/15155 co-relation queries the response was YES. [2022-12-05 18:46:35,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22537 conditions, 11966 events. 2282/11966 cut-off events. For 14399/15155 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 107124 event pairs, 440 based on Foata normal form. 326/11438 useless extension candidates. Maximal degree in co-relation 22451. Up to 1768 conditions per place. [2022-12-05 18:46:35,269 INFO L137 encePairwiseOnDemand]: 823/838 looper letters, 108 selfloop transitions, 14 changer transitions 152/1008 dead transitions. [2022-12-05 18:46:35,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 972 places, 1008 transitions, 4133 flow [2022-12-05 18:46:35,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-05 18:46:35,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-05 18:46:35,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 23432 transitions. [2022-12-05 18:46:35,278 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9019939949187774 [2022-12-05 18:46:35,278 INFO L175 Difference]: Start difference. First operand has 949 places, 920 transitions, 3210 flow. Second operand 31 states and 23432 transitions. [2022-12-05 18:46:35,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 972 places, 1008 transitions, 4133 flow [2022-12-05 18:46:35,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 1008 transitions, 3943 flow, removed 31 selfloop flow, removed 24 redundant places. [2022-12-05 18:46:35,331 INFO L231 Difference]: Finished difference. Result has 962 places, 854 transitions, 2357 flow [2022-12-05 18:46:35,332 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=3042, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=920, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=906, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=2357, PETRI_PLACES=962, PETRI_TRANSITIONS=854} [2022-12-05 18:46:35,332 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 184 predicate places. [2022-12-05 18:46:35,333 INFO L495 AbstractCegarLoop]: Abstraction has has 962 places, 854 transitions, 2357 flow [2022-12-05 18:46:35,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 753.0666666666667) internal successors, (11296), 15 states have internal predecessors, (11296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:35,334 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:35,334 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:35,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-05 18:46:35,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-05 18:46:35,544 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 2 more)] === [2022-12-05 18:46:35,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:35,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1376123373, now seen corresponding path program 12 times [2022-12-05 18:46:35,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:35,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792925531] [2022-12-05 18:46:35,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:35,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:35,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:35,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792925531] [2022-12-05 18:46:35,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792925531] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606585837] [2022-12-05 18:46:35,958 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-05 18:46:35,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:35,972 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:36,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-05 18:46:36,625 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-05 18:46:36,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:36,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 108 conjunts are in the unsatisfiable core [2022-12-05 18:46:36,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:36,884 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:36,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:36,907 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:36,908 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 [2022-12-05 18:46:36,941 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:36,941 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 [2022-12-05 18:46:36,976 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:36,976 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 [2022-12-05 18:46:37,019 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,019 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 [2022-12-05 18:46:37,061 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,062 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 [2022-12-05 18:46:37,098 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,099 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 [2022-12-05 18:46:37,141 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,141 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 [2022-12-05 18:46:37,181 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,182 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 [2022-12-05 18:46:37,226 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,227 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 [2022-12-05 18:46:37,260 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,261 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 [2022-12-05 18:46:37,296 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,296 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 [2022-12-05 18:46:37,330 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,330 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 [2022-12-05 18:46:37,366 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,366 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 [2022-12-05 18:46:37,399 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,399 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 [2022-12-05 18:46:37,431 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,432 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 [2022-12-05 18:46:37,463 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,463 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 [2022-12-05 18:46:37,492 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:37,492 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 [2022-12-05 18:46:37,530 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,531 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 [2022-12-05 18:46:37,570 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,571 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 [2022-12-05 18:46:37,603 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,604 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 [2022-12-05 18:46:37,746 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:37,746 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 25 [2022-12-05 18:46:37,861 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:37,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-05 18:46:38,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:38,263 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:38,263 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 [2022-12-05 18:46:38,313 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-12-05 18:46:38,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2022-12-05 18:46:38,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:38,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:39,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:39,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:39,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:39,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606585837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:39,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:39,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2022-12-05 18:46:39,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183940461] [2022-12-05 18:46:39,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-05 18:46:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:39,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-05 18:46:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2022-12-05 18:46:39,175 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 692 out of 838 [2022-12-05 18:46:39,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 854 transitions, 2357 flow. Second operand has 22 states, 22 states have (on average 696.2727272727273) internal successors, (15318), 22 states have internal predecessors, (15318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:39,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:39,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 692 of 838 [2022-12-05 18:46:39,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:42,166 INFO L130 PetriNetUnfolder]: 1712/7260 cut-off events. [2022-12-05 18:46:42,167 INFO L131 PetriNetUnfolder]: For 26069/26169 co-relation queries the response was YES. [2022-12-05 18:46:42,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17965 conditions, 7260 events. 1712/7260 cut-off events. For 26069/26169 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 55222 event pairs, 758 based on Foata normal form. 32/6752 useless extension candidates. Maximal degree in co-relation 17905. Up to 1572 conditions per place. [2022-12-05 18:46:42,227 INFO L137 encePairwiseOnDemand]: 816/838 looper letters, 134 selfloop transitions, 21 changer transitions 134/971 dead transitions. [2022-12-05 18:46:42,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 916 places, 971 transitions, 3795 flow [2022-12-05 18:46:42,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-05 18:46:42,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-05 18:46:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 22365 transitions. [2022-12-05 18:46:42,236 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8340170047732697 [2022-12-05 18:46:42,236 INFO L175 Difference]: Start difference. First operand has 962 places, 854 transitions, 2357 flow. Second operand 32 states and 22365 transitions. [2022-12-05 18:46:42,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 916 places, 971 transitions, 3795 flow [2022-12-05 18:46:42,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 867 places, 971 transitions, 3293 flow, removed 209 selfloop flow, removed 49 redundant places. [2022-12-05 18:46:42,309 INFO L231 Difference]: Finished difference. Result has 886 places, 832 transitions, 2118 flow [2022-12-05 18:46:42,310 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=2152, PETRI_DIFFERENCE_MINUEND_PLACES=836, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=833, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=2118, PETRI_PLACES=886, PETRI_TRANSITIONS=832} [2022-12-05 18:46:42,310 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 108 predicate places. [2022-12-05 18:46:42,311 INFO L495 AbstractCegarLoop]: Abstraction has has 886 places, 832 transitions, 2118 flow [2022-12-05 18:46:42,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 696.2727272727273) internal successors, (15318), 22 states have internal predecessors, (15318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:42,312 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:42,312 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:42,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:42,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-05 18:46:42,523 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 2 more)] === [2022-12-05 18:46:42,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:42,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2146467795, now seen corresponding path program 13 times [2022-12-05 18:46:42,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:42,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782088822] [2022-12-05 18:46:42,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:42,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:42,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:42,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782088822] [2022-12-05 18:46:42,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782088822] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:42,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762201973] [2022-12-05 18:46:42,881 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-05 18:46:42,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:42,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:42,882 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:42,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-05 18:46:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:43,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-05 18:46:43,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:43,705 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:43,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:43,721 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:43,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:43,739 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,739 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 [2022-12-05 18:46:43,769 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,769 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 [2022-12-05 18:46:43,796 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,796 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 [2022-12-05 18:46:43,821 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,821 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 [2022-12-05 18:46:43,846 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,846 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 [2022-12-05 18:46:43,902 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,902 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 [2022-12-05 18:46:43,929 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,929 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 [2022-12-05 18:46:43,966 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,966 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 [2022-12-05 18:46:43,994 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:43,994 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 [2022-12-05 18:46:44,032 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:44,032 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 [2022-12-05 18:46:44,069 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:44,069 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 [2022-12-05 18:46:44,110 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:44,110 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 [2022-12-05 18:46:44,144 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:44,144 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 [2022-12-05 18:46:44,173 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:44,174 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 [2022-12-05 18:46:44,201 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:44,201 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 [2022-12-05 18:46:44,238 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:44,238 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 [2022-12-05 18:46:44,270 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:44,270 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 [2022-12-05 18:46:44,305 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:44,305 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 [2022-12-05 18:46:44,336 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:44,336 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 [2022-12-05 18:46:44,452 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:44,452 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 25 [2022-12-05 18:46:44,542 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:44,542 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 [2022-12-05 18:46:44,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:44,935 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:44,935 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 [2022-12-05 18:46:44,952 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 18:46:44,952 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 [2022-12-05 18:46:45,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:45,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:45,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:45,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:45,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:45,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:45,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762201973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:45,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:45,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2022-12-05 18:46:45,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303031160] [2022-12-05 18:46:45,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:45,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-05 18:46:45,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:45,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-05 18:46:45,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2022-12-05 18:46:45,723 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 692 out of 838 [2022-12-05 18:46:45,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 886 places, 832 transitions, 2118 flow. Second operand has 22 states, 22 states have (on average 696.2727272727273) internal successors, (15318), 22 states have internal predecessors, (15318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:45,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:45,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 692 of 838 [2022-12-05 18:46:45,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:47,858 INFO L130 PetriNetUnfolder]: 1054/5352 cut-off events. [2022-12-05 18:46:47,858 INFO L131 PetriNetUnfolder]: For 8791/9143 co-relation queries the response was YES. [2022-12-05 18:46:47,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10973 conditions, 5352 events. 1054/5352 cut-off events. For 8791/9143 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 36374 event pairs, 240 based on Foata normal form. 8/4960 useless extension candidates. Maximal degree in co-relation 10927. Up to 576 conditions per place. [2022-12-05 18:46:47,910 INFO L137 encePairwiseOnDemand]: 816/838 looper letters, 118 selfloop transitions, 16 changer transitions 102/918 dead transitions. [2022-12-05 18:46:47,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 884 places, 918 transitions, 3181 flow [2022-12-05 18:46:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-05 18:46:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-05 18:46:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 21657 transitions. [2022-12-05 18:46:47,919 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8336669489568096 [2022-12-05 18:46:47,919 INFO L175 Difference]: Start difference. First operand has 886 places, 832 transitions, 2118 flow. Second operand 31 states and 21657 transitions. [2022-12-05 18:46:47,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 884 places, 918 transitions, 3181 flow [2022-12-05 18:46:47,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 862 places, 918 transitions, 3031 flow, removed 53 selfloop flow, removed 22 redundant places. [2022-12-05 18:46:47,940 INFO L231 Difference]: Finished difference. Result has 879 places, 812 transitions, 1887 flow [2022-12-05 18:46:47,941 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=832, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=832, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=816, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1887, PETRI_PLACES=879, PETRI_TRANSITIONS=812} [2022-12-05 18:46:47,942 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 101 predicate places. [2022-12-05 18:46:47,942 INFO L495 AbstractCegarLoop]: Abstraction has has 879 places, 812 transitions, 1887 flow [2022-12-05 18:46:47,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 696.2727272727273) internal successors, (15318), 22 states have internal predecessors, (15318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:47,943 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:47,944 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:47,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:48,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:48,148 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 2 more)] === [2022-12-05 18:46:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:48,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1433718799, now seen corresponding path program 14 times [2022-12-05 18:46:48,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:48,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306639425] [2022-12-05 18:46:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:48,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:48,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:48,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306639425] [2022-12-05 18:46:48,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306639425] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:48,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683623027] [2022-12-05 18:46:48,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:46:48,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:48,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:48,551 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:48,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-05 18:46:49,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 18:46:49,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:49,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 93 conjunts are in the unsatisfiable core [2022-12-05 18:46:49,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:49,351 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:49,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:49,369 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,369 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 [2022-12-05 18:46:49,401 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,401 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 [2022-12-05 18:46:49,427 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,427 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 [2022-12-05 18:46:49,461 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:49,461 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 [2022-12-05 18:46:49,495 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:49,495 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 [2022-12-05 18:46:49,528 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,528 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 [2022-12-05 18:46:49,556 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,556 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 [2022-12-05 18:46:49,594 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,595 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 [2022-12-05 18:46:49,622 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,623 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 [2022-12-05 18:46:49,647 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,647 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 [2022-12-05 18:46:49,676 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,676 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 [2022-12-05 18:46:49,709 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,709 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 16 treesize of output 22 [2022-12-05 18:46:49,756 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,756 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 [2022-12-05 18:46:49,782 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,783 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 [2022-12-05 18:46:49,814 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,815 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 [2022-12-05 18:46:49,841 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,842 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 [2022-12-05 18:46:49,874 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,874 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 [2022-12-05 18:46:49,899 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,899 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 [2022-12-05 18:46:49,927 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,927 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 [2022-12-05 18:46:49,954 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:49,954 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 [2022-12-05 18:46:50,073 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:50,074 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 25 [2022-12-05 18:46:50,169 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:50,170 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 [2022-12-05 18:46:50,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:50,507 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:50,507 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 [2022-12-05 18:46:50,556 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-12-05 18:46:50,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 30 [2022-12-05 18:46:50,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:50,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:51,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:51,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:51,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:51,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:51,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683623027] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:51,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:51,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2022-12-05 18:46:51,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487297571] [2022-12-05 18:46:51,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:51,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-05 18:46:51,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:51,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-05 18:46:51,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2022-12-05 18:46:51,263 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 692 out of 838 [2022-12-05 18:46:51,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 879 places, 812 transitions, 1887 flow. Second operand has 23 states, 23 states have (on average 696.0869565217391) internal successors, (16010), 23 states have internal predecessors, (16010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:51,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:51,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 692 of 838 [2022-12-05 18:46:51,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:52,974 INFO L130 PetriNetUnfolder]: 642/3420 cut-off events. [2022-12-05 18:46:52,975 INFO L131 PetriNetUnfolder]: For 10275/10291 co-relation queries the response was YES. [2022-12-05 18:46:52,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7271 conditions, 3420 events. 642/3420 cut-off events. For 10275/10291 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 19130 event pairs, 30 based on Foata normal form. 8/3218 useless extension candidates. Maximal degree in co-relation 7219. Up to 216 conditions per place. [2022-12-05 18:46:53,000 INFO L137 encePairwiseOnDemand]: 816/838 looper letters, 108 selfloop transitions, 17 changer transitions 108/896 dead transitions. [2022-12-05 18:46:53,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 882 places, 896 transitions, 3009 flow [2022-12-05 18:46:53,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-05 18:46:53,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-05 18:46:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 20965 transitions. [2022-12-05 18:46:53,008 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8339299920445505 [2022-12-05 18:46:53,008 INFO L175 Difference]: Start difference. First operand has 879 places, 812 transitions, 1887 flow. Second operand 30 states and 20965 transitions. [2022-12-05 18:46:53,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 882 places, 896 transitions, 3009 flow [2022-12-05 18:46:53,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 833 places, 896 transitions, 2443 flow, removed 255 selfloop flow, removed 49 redundant places. [2022-12-05 18:46:53,029 INFO L231 Difference]: Finished difference. Result has 850 places, 779 transitions, 1734 flow [2022-12-05 18:46:53,030 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1763, PETRI_DIFFERENCE_MINUEND_PLACES=804, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=812, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1734, PETRI_PLACES=850, PETRI_TRANSITIONS=779} [2022-12-05 18:46:53,030 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 72 predicate places. [2022-12-05 18:46:53,030 INFO L495 AbstractCegarLoop]: Abstraction has has 850 places, 779 transitions, 1734 flow [2022-12-05 18:46:53,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 696.0869565217391) internal successors, (16010), 23 states have internal predecessors, (16010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:53,032 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:53,033 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:53,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:53,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:53,243 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 2 more)] === [2022-12-05 18:46:53,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:53,243 INFO L85 PathProgramCache]: Analyzing trace with hash 645524783, now seen corresponding path program 15 times [2022-12-05 18:46:53,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:53,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927032470] [2022-12-05 18:46:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:53,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:53,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:53,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927032470] [2022-12-05 18:46:53,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927032470] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:53,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123842081] [2022-12-05 18:46:53,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 18:46:53,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:53,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:53,541 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:53,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-05 18:46:54,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-05 18:46:54,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:54,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 94 conjunts are in the unsatisfiable core [2022-12-05 18:46:54,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:54,335 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:54,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:54,370 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,371 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 [2022-12-05 18:46:54,401 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,401 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 [2022-12-05 18:46:54,429 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,429 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 [2022-12-05 18:46:54,456 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,457 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 [2022-12-05 18:46:54,482 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,483 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 [2022-12-05 18:46:54,517 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,518 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 [2022-12-05 18:46:54,545 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,545 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 [2022-12-05 18:46:54,570 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,571 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 [2022-12-05 18:46:54,602 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:54,602 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 [2022-12-05 18:46:54,628 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,628 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 [2022-12-05 18:46:54,656 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,656 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 [2022-12-05 18:46:54,688 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,688 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 [2022-12-05 18:46:54,724 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,729 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 [2022-12-05 18:46:54,764 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,764 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 [2022-12-05 18:46:54,800 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,800 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 [2022-12-05 18:46:54,832 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,832 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 [2022-12-05 18:46:54,867 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:54,867 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 [2022-12-05 18:46:54,908 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:54,908 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 [2022-12-05 18:46:54,939 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,939 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 [2022-12-05 18:46:54,974 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:54,975 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 [2022-12-05 18:46:55,114 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:55,114 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 25 [2022-12-05 18:46:55,272 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:55,272 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 [2022-12-05 18:46:55,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:55,571 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:55,571 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 [2022-12-05 18:46:55,618 INFO L321 Elim1Store]: treesize reduction 4, result has 84.0 percent of original size [2022-12-05 18:46:55,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 35 [2022-12-05 18:46:55,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:55,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:56,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:46:56,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:46:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:46:56,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:46:56,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123842081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:46:56,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:46:56,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2022-12-05 18:46:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425985604] [2022-12-05 18:46:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:46:56,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-05 18:46:56,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:46:56,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-05 18:46:56,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=564, Unknown=0, NotChecked=0, Total=650 [2022-12-05 18:46:56,447 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 692 out of 838 [2022-12-05 18:46:56,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 850 places, 779 transitions, 1734 flow. Second operand has 22 states, 22 states have (on average 696.2727272727273) internal successors, (15318), 22 states have internal predecessors, (15318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:56,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:46:56,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 692 of 838 [2022-12-05 18:46:56,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:46:57,803 INFO L130 PetriNetUnfolder]: 178/1886 cut-off events. [2022-12-05 18:46:57,803 INFO L131 PetriNetUnfolder]: For 957/993 co-relation queries the response was YES. [2022-12-05 18:46:57,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 1886 events. 178/1886 cut-off events. For 957/993 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7794 event pairs, 28 based on Foata normal form. 16/1814 useless extension candidates. Maximal degree in co-relation 2797. Up to 92 conditions per place. [2022-12-05 18:46:57,812 INFO L137 encePairwiseOnDemand]: 817/838 looper letters, 105 selfloop transitions, 18 changer transitions 20/806 dead transitions. [2022-12-05 18:46:57,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 826 places, 806 transitions, 2160 flow [2022-12-05 18:46:57,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-05 18:46:57,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-05 18:46:57,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 15362 transitions. [2022-12-05 18:46:57,825 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.833261011065307 [2022-12-05 18:46:57,825 INFO L175 Difference]: Start difference. First operand has 850 places, 779 transitions, 1734 flow. Second operand 22 states and 15362 transitions. [2022-12-05 18:46:57,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 826 places, 806 transitions, 2160 flow [2022-12-05 18:46:57,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 793 places, 806 transitions, 2021 flow, removed 42 selfloop flow, removed 33 redundant places. [2022-12-05 18:46:57,860 INFO L231 Difference]: Finished difference. Result has 799 places, 777 transitions, 1696 flow [2022-12-05 18:46:57,861 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1646, PETRI_DIFFERENCE_MINUEND_PLACES=772, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=779, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=763, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1696, PETRI_PLACES=799, PETRI_TRANSITIONS=777} [2022-12-05 18:46:57,862 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 21 predicate places. [2022-12-05 18:46:57,862 INFO L495 AbstractCegarLoop]: Abstraction has has 799 places, 777 transitions, 1696 flow [2022-12-05 18:46:57,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 696.2727272727273) internal successors, (15318), 22 states have internal predecessors, (15318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:46:57,863 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:46:57,863 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:46:57,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-12-05 18:46:58,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-05 18:46:58,064 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 2 more)] === [2022-12-05 18:46:58,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:46:58,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1228958447, now seen corresponding path program 16 times [2022-12-05 18:46:58,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:46:58,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063152995] [2022-12-05 18:46:58,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:46:58,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:46:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:46:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:46:58,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:46:58,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063152995] [2022-12-05 18:46:58,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063152995] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:46:58,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066570553] [2022-12-05 18:46:58,359 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-05 18:46:58,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:46:58,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:46:58,360 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-05 18:46:58,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-05 18:46:58,999 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-05 18:46:58,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:46:59,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 100 conjunts are in the unsatisfiable core [2022-12-05 18:46:59,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:46:59,282 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:59,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:59,307 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:59,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:59,331 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:46:59,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-05 18:46:59,353 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,353 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 [2022-12-05 18:46:59,393 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,394 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 [2022-12-05 18:46:59,427 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,428 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 [2022-12-05 18:46:59,463 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:59,463 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 [2022-12-05 18:46:59,498 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,499 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 [2022-12-05 18:46:59,535 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,535 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 [2022-12-05 18:46:59,572 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:59,572 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 [2022-12-05 18:46:59,604 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,605 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 [2022-12-05 18:46:59,636 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,636 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 [2022-12-05 18:46:59,702 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:59,702 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 [2022-12-05 18:46:59,732 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,733 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 [2022-12-05 18:46:59,766 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,767 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 [2022-12-05 18:46:59,796 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,796 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 [2022-12-05 18:46:59,836 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:59,836 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 [2022-12-05 18:46:59,874 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,875 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 [2022-12-05 18:46:59,905 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:46:59,905 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 16 treesize of output 22 [2022-12-05 18:46:59,946 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:59,947 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 [2022-12-05 18:46:59,987 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:46:59,987 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 [2022-12-05 18:47:00,308 INFO L321 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-12-05 18:47:00,309 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 5 case distinctions, treesize of input 41 treesize of output 58 [2022-12-05 18:47:00,531 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-12-05 18:47:00,532 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 5 case distinctions, treesize of input 45 treesize of output 70 [2022-12-05 18:47:01,232 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-05 18:47:01,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 47 [2022-12-05 18:47:01,429 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-12-05 18:47:01,430 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 5 case distinctions, treesize of input 41 treesize of output 66 [2022-12-05 18:47:01,523 INFO L321 Elim1Store]: treesize reduction 4, result has 84.0 percent of original size [2022-12-05 18:47:01,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 47 [2022-12-05 18:47:01,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:47:01,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:47:01,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:47:02,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 18:47:02,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-05 18:47:02,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-05 18:47:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 18:47:02,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:47:02,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066570553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:47:02,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:47:02,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2022-12-05 18:47:02,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928017277] [2022-12-05 18:47:02,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:47:02,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-05 18:47:02,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:47:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-05 18:47:02,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2022-12-05 18:47:02,434 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 692 out of 838 [2022-12-05 18:47:02,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 799 places, 777 transitions, 1696 flow. Second operand has 22 states, 22 states have (on average 696.2727272727273) internal successors, (15318), 22 states have internal predecessors, (15318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:02,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:47:02,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 692 of 838 [2022-12-05 18:47:02,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:47:03,832 INFO L130 PetriNetUnfolder]: 144/1724 cut-off events. [2022-12-05 18:47:03,833 INFO L131 PetriNetUnfolder]: For 361/389 co-relation queries the response was YES. [2022-12-05 18:47:03,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2331 conditions, 1724 events. 144/1724 cut-off events. For 361/389 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6577 event pairs, 18 based on Foata normal form. 16/1652 useless extension candidates. Maximal degree in co-relation 2307. Up to 56 conditions per place. [2022-12-05 18:47:03,839 INFO L137 encePairwiseOnDemand]: 817/838 looper letters, 0 selfloop transitions, 0 changer transitions 790/790 dead transitions. [2022-12-05 18:47:03,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 812 places, 790 transitions, 1978 flow [2022-12-05 18:47:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-05 18:47:03,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-05 18:47:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 15349 transitions. [2022-12-05 18:47:03,846 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8325558689520504 [2022-12-05 18:47:03,846 INFO L175 Difference]: Start difference. First operand has 799 places, 777 transitions, 1696 flow. Second operand 22 states and 15349 transitions. [2022-12-05 18:47:03,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 812 places, 790 transitions, 1978 flow [2022-12-05 18:47:03,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 789 places, 790 transitions, 1908 flow, removed 6 selfloop flow, removed 23 redundant places. [2022-12-05 18:47:03,854 INFO L231 Difference]: Finished difference. Result has 789 places, 0 transitions, 0 flow [2022-12-05 18:47:03,854 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=838, PETRI_DIFFERENCE_MINUEND_FLOW=1620, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=775, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=0, PETRI_PLACES=789, PETRI_TRANSITIONS=0} [2022-12-05 18:47:03,854 INFO L294 CegarLoopForPetriNet]: 778 programPoint places, 11 predicate places. [2022-12-05 18:47:03,854 INFO L495 AbstractCegarLoop]: Abstraction has has 789 places, 0 transitions, 0 flow [2022-12-05 18:47:03,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 696.2727272727273) internal successors, (15318), 22 states have internal predecessors, (15318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:47:03,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 18:47:03,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 18:47:03,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-05 18:47:03,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-05 18:47:03,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-05 18:47:03,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-12-05 18:47:04,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-05 18:47:04,068 INFO L458 BasicCegarLoop]: Path program histogram: [16, 7, 1, 1, 1, 1, 1] [2022-12-05 18:47:04,093 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:47:04,094 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:47:04,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:47:04 BasicIcfg [2022-12-05 18:47:04,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:47:04,098 INFO L158 Benchmark]: Toolchain (without parser) took 165552.18ms. Allocated memory was 200.3MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 165.8MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2022-12-05 18:47:04,098 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory is still 177.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:47:04,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6153.49ms. Allocated memory was 200.3MB in the beginning and 384.8MB in the end (delta: 184.5MB). Free memory was 165.3MB in the beginning and 307.3MB in the end (delta: -142.1MB). Peak memory consumption was 126.2MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.32ms. Allocated memory is still 384.8MB. Free memory was 307.3MB in the beginning and 295.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,102 INFO L158 Benchmark]: Boogie Preprocessor took 86.53ms. Allocated memory is still 384.8MB. Free memory was 295.3MB in the beginning and 289.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,103 INFO L158 Benchmark]: RCFGBuilder took 1104.05ms. Allocated memory is still 384.8MB. Free memory was 289.5MB in the beginning and 218.2MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2022-12-05 18:47:04,104 INFO L158 Benchmark]: TraceAbstraction took 158049.88ms. Allocated memory was 384.8MB in the beginning and 6.4GB in the end (delta: 6.0GB). Free memory was 217.2MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-12-05 18:47:04,104 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 200.3MB. Free memory is still 177.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 6153.49ms. Allocated memory was 200.3MB in the beginning and 384.8MB in the end (delta: 184.5MB). Free memory was 165.3MB in the beginning and 307.3MB in the end (delta: -142.1MB). Peak memory consumption was 126.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 151.32ms. Allocated memory is still 384.8MB. Free memory was 307.3MB in the beginning and 295.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.53ms. Allocated memory is still 384.8MB. Free memory was 295.3MB in the beginning and 289.5MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1104.05ms. Allocated memory is still 384.8MB. Free memory was 289.5MB in the beginning and 218.2MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. * TraceAbstraction took 158049.88ms. Allocated memory was 384.8MB in the beginning and 6.4GB in the end (delta: 6.0GB). Free memory was 217.2MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 997 locations, 5 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: 157.8s, OverallIterations: 28, TraceHistogramMax: 1, PathProgramHistogramMax: 16, EmptinessCheckTime: 0.0s, AutomataDifference: 93.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7706 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7706 mSDsluCounter, 9064 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7581 mSDsCounter, 771 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19644 IncrementalHoareTripleChecker+Invalid, 20415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 771 mSolverCounterUnsat, 1483 mSDtfsCounter, 19644 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9270 GetRequests, 8245 SyntacticMatches, 1 SemanticMatches, 1024 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7894 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4810occurred in iteration=12, InterpolantAutomatonStates: 707, 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: 1.5s SsaConstructionTime, 5.6s SatisfiabilityAnalysisTime, 43.0s InterpolantComputationTime, 17772 NumberOfCodeBlocks, 17695 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 17719 ConstructedInterpolants, 109 QuantifiedInterpolants, 100204 SizeOfPredicates, 536 NumberOfNonLiveVariables, 29036 ConjunctsInSsa, 1106 ConjunctsInUnsatCore, 53 InterpolantComputations, 28 PerfectInterpolantSequences, 25/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:47:04,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...