/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_change_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:44:04,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:44:04,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:44:04,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:44:04,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:44:04,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:44:04,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:44:04,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:44:04,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:44:04,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:44:04,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:44:04,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:44:04,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:44:04,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:44:04,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:44:04,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:44:04,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:44:04,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:44:04,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:44:04,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:44:04,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:44:04,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:44:04,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:44:04,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:44:04,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:44:04,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:44:04,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:44:04,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:44:04,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:44:04,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:44:04,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:44:04,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:44:04,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:44:04,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:44:04,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:44:04,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:44:04,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:44:04,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:44:04,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:44:04,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:44:04,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:44:04,408 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 18:44:04,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:44:04,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:44:04,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:44:04,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:44:04,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:44:04,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:44:04,443 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:44:04,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:44:04,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:44:04,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:44:04,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:44:04,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:44:04,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:44:04,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:44:04,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:44:04,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:44:04,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:44:04,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:44:04,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:44:04,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:44:04,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:44:04,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:44:04,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:44:04,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:44:04,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:44:04,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:44:04,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:44:04,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:44:04,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:44:04,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:44:04,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:44:04,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:44:04,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:44:04,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:44:04,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:44:04,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:44:04,780 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:44:04,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2022-12-05 18:44:05,951 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:44:06,498 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:44:06,498 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2022-12-05 18:44:06,549 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0dcece89/67dadced07014b898340abc6ab0d859b/FLAGcd2de07ab [2022-12-05 18:44:06,566 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0dcece89/67dadced07014b898340abc6ab0d859b [2022-12-05 18:44:06,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:44:06,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:44:06,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:44:06,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:44:06,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:44:06,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:44:06" (1/1) ... [2022-12-05 18:44:06,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfcdac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:06, skipping insertion in model container [2022-12-05 18:44:06,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:44:06" (1/1) ... [2022-12-05 18:44:06,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:44:06,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:44:07,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5469,5482] [2022-12-05 18:44:07,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:07,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:07,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:07,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:07,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:07,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:07,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:07,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:07,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:07,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:07,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:07,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:07,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:07,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:07,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:07,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:07,451 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:44:07,460 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:07,468 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:07,484 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:07,664 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:07,673 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:07,858 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:44:08,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:08,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:08,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:08,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:08,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:08,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:08,337 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:44:08,344 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:44:08,351 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:44:08,550 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:44:08,550 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:08,557 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:44:08,557 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:08,826 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:44:09,189 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:09,206 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:09,291 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:44:09,294 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:44:09,683 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:44:09,953 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:44:09,961 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:44:10,178 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:44:10,332 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:44:10,333 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:44:10,333 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:44:11,682 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:44:11,683 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:11,686 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:11,690 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:11,700 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:12,790 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:12,791 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:12,849 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:44:12,855 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:44:12,856 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:44:12,857 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:12,858 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:44:12,858 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:44:12,864 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:12,864 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:44:12,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:44:12,933 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:44:12,947 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5469,5482] [2022-12-05 18:44:12,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:12,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:12,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:12,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:12,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:12,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:12,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:12,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:12,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:12,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:13,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:13,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:13,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:13,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:13,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:13,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:13,010 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 18:44:13,011 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:13,011 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:13,012 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 18:44:13,016 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:13,017 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 18:44:13,048 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 18:44:13,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:13,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:13,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:13,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:13,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:44:13,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:44:13,080 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 18:44:13,084 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 18:44:13,085 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 18:44:13,088 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 18:44:13,089 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:13,089 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 18:44:13,089 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 18:44:13,108 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 18:44:13,141 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:13,154 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 18:44:13,156 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 18:44:13,157 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 18:44:13,165 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 18:44:13,170 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 18:44:13,171 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 18:44:13,175 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 18:44:13,180 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 18:44:13,181 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 18:44:13,181 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 18:44:13,276 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 18:44:13,276 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:13,278 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:13,280 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:13,282 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 18:44:13,323 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:13,324 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 18:44:13,329 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 18:44:13,329 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 18:44:13,330 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 18:44:13,331 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:13,332 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 18:44:13,332 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 18:44:13,332 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 18:44:13,332 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 18:44:13,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:44:13,782 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:44:13,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13 WrapperNode [2022-12-05 18:44:13,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:44:13,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:44:13,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:44:13,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:44:13,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:13,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:13,959 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 58, statements flattened = 834 [2022-12-05 18:44:13,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:44:13,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:44:13,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:44:13,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:44:13,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:13,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:13,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:13,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:14,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:14,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:14,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:14,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:14,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:44:14,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:44:14,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:44:14,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:44:14,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (1/1) ... [2022-12-05 18:44:14,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:44:14,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:14,104 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 18:44:14,126 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 18:44:14,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:44:14,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-05 18:44:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:44:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:44:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 18:44:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-05 18:44:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2022-12-05 18:44:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:44:14,153 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 18:44:14,620 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:44:14,622 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:44:15,256 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:44:15,267 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:44:15,267 INFO L302 CfgBuilder]: Removed 31 assume(true) statements. [2022-12-05 18:44:15,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:44:15 BoogieIcfgContainer [2022-12-05 18:44:15,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:44:15,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:44:15,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:44:15,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:44:15,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:44:06" (1/3) ... [2022-12-05 18:44:15,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc03b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:44:15, skipping insertion in model container [2022-12-05 18:44:15,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:44:13" (2/3) ... [2022-12-05 18:44:15,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc03b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:44:15, skipping insertion in model container [2022-12-05 18:44:15,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:44:15" (3/3) ... [2022-12-05 18:44:15,277 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2022-12-05 18:44:15,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:44:15,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 18:44:15,293 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:44:15,461 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 18:44:15,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 849 places, 923 transitions, 1862 flow [2022-12-05 18:44:15,768 INFO L130 PetriNetUnfolder]: 81/921 cut-off events. [2022-12-05 18:44:15,768 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 18:44:15,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 921 events. 81/921 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1804 event pairs, 0 based on Foata normal form. 0/836 useless extension candidates. Maximal degree in co-relation 719. Up to 9 conditions per place. [2022-12-05 18:44:15,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 849 places, 923 transitions, 1862 flow [2022-12-05 18:44:15,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 839 places, 913 transitions, 1835 flow [2022-12-05 18:44:15,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:44:15,821 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;@5bb25b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:44:15,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-05 18:44:15,957 INFO L130 PetriNetUnfolder]: 22/402 cut-off events. [2022-12-05 18:44:15,957 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:44:15,957 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:15,958 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 18:44:15,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2142759674, now seen corresponding path program 1 times [2022-12-05 18:44:15,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:15,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149344343] [2022-12-05 18:44:15,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:15,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:16,905 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 18:44:16,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:16,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149344343] [2022-12-05 18:44:16,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149344343] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:16,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:16,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:44:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178624008] [2022-12-05 18:44:16,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:16,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:44:16,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:16,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:44:16,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:44:16,987 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 847 out of 923 [2022-12-05 18:44:17,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 839 places, 913 transitions, 1835 flow. Second operand has 9 states, 9 states have (on average 849.1111111111111) internal successors, (7642), 9 states have internal predecessors, (7642), 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 18:44:17,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:17,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 847 of 923 [2022-12-05 18:44:17,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:17,393 INFO L130 PetriNetUnfolder]: 44/869 cut-off events. [2022-12-05 18:44:17,393 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-12-05 18:44:17,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 869 events. 44/869 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1585 event pairs, 0 based on Foata normal form. 25/845 useless extension candidates. Maximal degree in co-relation 717. Up to 12 conditions per place. [2022-12-05 18:44:17,407 INFO L137 encePairwiseOnDemand]: 870/923 looper letters, 18 selfloop transitions, 16 changer transitions 1/869 dead transitions. [2022-12-05 18:44:17,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 847 places, 869 transitions, 1815 flow [2022-12-05 18:44:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:44:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:44:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 13623 transitions. [2022-12-05 18:44:17,450 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.922467497291441 [2022-12-05 18:44:17,452 INFO L175 Difference]: Start difference. First operand has 839 places, 913 transitions, 1835 flow. Second operand 16 states and 13623 transitions. [2022-12-05 18:44:17,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 847 places, 869 transitions, 1815 flow [2022-12-05 18:44:17,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 844 places, 869 transitions, 1810 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:44:17,484 INFO L231 Difference]: Finished difference. Result has 844 places, 868 transitions, 1772 flow [2022-12-05 18:44:17,487 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=1742, PETRI_DIFFERENCE_MINUEND_PLACES=829, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=853, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1772, PETRI_PLACES=844, PETRI_TRANSITIONS=868} [2022-12-05 18:44:17,491 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, 5 predicate places. [2022-12-05 18:44:17,491 INFO L495 AbstractCegarLoop]: Abstraction has has 844 places, 868 transitions, 1772 flow [2022-12-05 18:44:17,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 849.1111111111111) internal successors, (7642), 9 states have internal predecessors, (7642), 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 18:44:17,496 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:17,496 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 18:44:17,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:44:17,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:17,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:17,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1853438149, now seen corresponding path program 1 times [2022-12-05 18:44:17,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:17,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66062114] [2022-12-05 18:44:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:17,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:18,269 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 18:44:18,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:18,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66062114] [2022-12-05 18:44:18,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66062114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:18,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:18,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:44:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955227328] [2022-12-05 18:44:18,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:18,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:44:18,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:18,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:44:18,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:44:18,279 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 838 out of 923 [2022-12-05 18:44:18,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 844 places, 868 transitions, 1772 flow. Second operand has 6 states, 6 states have (on average 842.6666666666666) internal successors, (5056), 6 states have internal predecessors, (5056), 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 18:44:18,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:18,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 838 of 923 [2022-12-05 18:44:18,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:18,832 INFO L130 PetriNetUnfolder]: 118/1688 cut-off events. [2022-12-05 18:44:18,832 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-05 18:44:18,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 1688 events. 118/1688 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 6235 event pairs, 8 based on Foata normal form. 0/1561 useless extension candidates. Maximal degree in co-relation 1326. Up to 41 conditions per place. [2022-12-05 18:44:18,850 INFO L137 encePairwiseOnDemand]: 913/923 looper letters, 48 selfloop transitions, 9 changer transitions 0/881 dead transitions. [2022-12-05 18:44:18,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 881 transitions, 1916 flow [2022-12-05 18:44:18,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 18:44:18,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 18:44:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 6762 transitions. [2022-12-05 18:44:18,868 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9157638136511376 [2022-12-05 18:44:18,869 INFO L175 Difference]: Start difference. First operand has 844 places, 868 transitions, 1772 flow. Second operand 8 states and 6762 transitions. [2022-12-05 18:44:18,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 881 transitions, 1916 flow [2022-12-05 18:44:18,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 833 places, 881 transitions, 1884 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-05 18:44:18,893 INFO L231 Difference]: Finished difference. Result has 834 places, 870 transitions, 1775 flow [2022-12-05 18:44:18,895 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=1736, PETRI_DIFFERENCE_MINUEND_PLACES=826, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=857, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1775, PETRI_PLACES=834, PETRI_TRANSITIONS=870} [2022-12-05 18:44:18,895 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, -5 predicate places. [2022-12-05 18:44:18,896 INFO L495 AbstractCegarLoop]: Abstraction has has 834 places, 870 transitions, 1775 flow [2022-12-05 18:44:18,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 842.6666666666666) internal successors, (5056), 6 states have internal predecessors, (5056), 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 18:44:18,899 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:18,899 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:18,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:44:18,899 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:18,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:18,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1312235684, now seen corresponding path program 1 times [2022-12-05 18:44:18,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:18,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953176700] [2022-12-05 18:44:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:18,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:19,531 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 18:44:19,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:19,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953176700] [2022-12-05 18:44:19,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953176700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:19,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:44:19,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:44:19,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530513711] [2022-12-05 18:44:19,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:19,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:44:19,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:19,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:44:19,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:44:19,540 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 859 out of 923 [2022-12-05 18:44:19,545 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 870 transitions, 1775 flow. Second operand has 5 states, 5 states have (on average 860.6) internal successors, (4303), 5 states have internal predecessors, (4303), 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 18:44:19,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:19,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 859 of 923 [2022-12-05 18:44:19,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:19,933 INFO L130 PetriNetUnfolder]: 102/1644 cut-off events. [2022-12-05 18:44:19,933 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-12-05 18:44:19,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 1644 events. 102/1644 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 4920 event pairs, 0 based on Foata normal form. 0/1531 useless extension candidates. Maximal degree in co-relation 628. Up to 16 conditions per place. [2022-12-05 18:44:19,952 INFO L137 encePairwiseOnDemand]: 916/923 looper letters, 25 selfloop transitions, 6 changer transitions 0/877 dead transitions. [2022-12-05 18:44:19,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 839 places, 877 transitions, 1855 flow [2022-12-05 18:44:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:44:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:44:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5185 transitions. [2022-12-05 18:44:19,962 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9362585771036476 [2022-12-05 18:44:19,962 INFO L175 Difference]: Start difference. First operand has 834 places, 870 transitions, 1775 flow. Second operand 6 states and 5185 transitions. [2022-12-05 18:44:19,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 839 places, 877 transitions, 1855 flow [2022-12-05 18:44:19,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 834 places, 877 transitions, 1846 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 18:44:19,979 INFO L231 Difference]: Finished difference. Result has 835 places, 871 transitions, 1786 flow [2022-12-05 18:44:19,981 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=1766, PETRI_DIFFERENCE_MINUEND_PLACES=829, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=870, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=864, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1786, PETRI_PLACES=835, PETRI_TRANSITIONS=871} [2022-12-05 18:44:19,981 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, -4 predicate places. [2022-12-05 18:44:19,982 INFO L495 AbstractCegarLoop]: Abstraction has has 835 places, 871 transitions, 1786 flow [2022-12-05 18:44:19,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 860.6) internal successors, (4303), 5 states have internal predecessors, (4303), 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 18:44:19,984 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:19,985 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:19,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:44:19,985 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:19,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:19,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2098893123, now seen corresponding path program 1 times [2022-12-05 18:44:19,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:19,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814023234] [2022-12-05 18:44:19,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:19,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:20,480 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 18:44:20,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:20,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814023234] [2022-12-05 18:44:20,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814023234] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:20,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975515357] [2022-12-05 18:44:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:20,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:20,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:20,491 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 18:44:20,515 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 18:44:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:20,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-05 18:44:20,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:21,047 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 18:44:21,079 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 18:44:21,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:21,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975515357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:21,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:21,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-05 18:44:21,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387941821] [2022-12-05 18:44:21,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:21,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:44:21,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:21,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:44:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-05 18:44:21,088 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 811 out of 923 [2022-12-05 18:44:21,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 835 places, 871 transitions, 1786 flow. Second operand has 7 states, 7 states have (on average 816.2857142857143) internal successors, (5714), 7 states have internal predecessors, (5714), 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 18:44:21,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:21,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 811 of 923 [2022-12-05 18:44:21,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:24,944 INFO L130 PetriNetUnfolder]: 3285/15108 cut-off events. [2022-12-05 18:44:24,944 INFO L131 PetriNetUnfolder]: For 191/191 co-relation queries the response was YES. [2022-12-05 18:44:25,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19526 conditions, 15108 events. 3285/15108 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 139708 event pairs, 819 based on Foata normal form. 0/13718 useless extension candidates. Maximal degree in co-relation 19301. Up to 1719 conditions per place. [2022-12-05 18:44:25,051 INFO L137 encePairwiseOnDemand]: 911/923 looper letters, 182 selfloop transitions, 20 changer transitions 0/998 dead transitions. [2022-12-05 18:44:25,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 998 transitions, 2456 flow [2022-12-05 18:44:25,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-05 18:44:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-05 18:44:25,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 11554 transitions. [2022-12-05 18:44:25,071 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8941340349791054 [2022-12-05 18:44:25,072 INFO L175 Difference]: Start difference. First operand has 835 places, 871 transitions, 1786 flow. Second operand 14 states and 11554 transitions. [2022-12-05 18:44:25,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 998 transitions, 2456 flow [2022-12-05 18:44:25,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 844 places, 998 transitions, 2446 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 18:44:25,090 INFO L231 Difference]: Finished difference. Result has 852 places, 892 transitions, 1910 flow [2022-12-05 18:44:25,091 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=1776, PETRI_DIFFERENCE_MINUEND_PLACES=831, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=871, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=860, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1910, PETRI_PLACES=852, PETRI_TRANSITIONS=892} [2022-12-05 18:44:25,093 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, 13 predicate places. [2022-12-05 18:44:25,093 INFO L495 AbstractCegarLoop]: Abstraction has has 852 places, 892 transitions, 1910 flow [2022-12-05 18:44:25,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 816.2857142857143) internal successors, (5714), 7 states have internal predecessors, (5714), 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 18:44:25,096 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:25,097 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] [2022-12-05 18:44:25,108 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 18:44:25,304 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 18:44:25,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:25,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:25,306 INFO L85 PathProgramCache]: Analyzing trace with hash 774353638, now seen corresponding path program 1 times [2022-12-05 18:44:25,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:25,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202329896] [2022-12-05 18:44:25,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:25,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:25,984 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 18:44:25,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:25,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202329896] [2022-12-05 18:44:25,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202329896] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:25,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478213050] [2022-12-05 18:44:25,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:25,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:25,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:26,200 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 18:44:26,205 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 18:44:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:26,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-05 18:44:26,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:26,877 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 18:44:26,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 18:44:27,004 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 18:44:27,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478213050] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 18:44:27,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 18:44:27,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2022-12-05 18:44:27,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297983675] [2022-12-05 18:44:27,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 18:44:27,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 18:44:27,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:27,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 18:44:27,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-05 18:44:27,016 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 859 out of 923 [2022-12-05 18:44:27,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 852 places, 892 transitions, 1910 flow. Second operand has 13 states, 13 states have (on average 861.0769230769231) internal successors, (11194), 13 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:27,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:27,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 859 of 923 [2022-12-05 18:44:27,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:28,056 INFO L130 PetriNetUnfolder]: 210/2829 cut-off events. [2022-12-05 18:44:28,056 INFO L131 PetriNetUnfolder]: For 76/79 co-relation queries the response was YES. [2022-12-05 18:44:28,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 2829 events. 210/2829 cut-off events. For 76/79 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 14926 event pairs, 0 based on Foata normal form. 3/2621 useless extension candidates. Maximal degree in co-relation 3049. Up to 33 conditions per place. [2022-12-05 18:44:28,079 INFO L137 encePairwiseOnDemand]: 910/923 looper letters, 27 selfloop transitions, 18 changer transitions 0/912 dead transitions. [2022-12-05 18:44:28,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 866 places, 912 transitions, 2048 flow [2022-12-05 18:44:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-05 18:44:28,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-05 18:44:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 12934 transitions. [2022-12-05 18:44:28,101 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9342000722282412 [2022-12-05 18:44:28,102 INFO L175 Difference]: Start difference. First operand has 852 places, 892 transitions, 1910 flow. Second operand 15 states and 12934 transitions. [2022-12-05 18:44:28,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 866 places, 912 transitions, 2048 flow [2022-12-05 18:44:28,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 866 places, 912 transitions, 2048 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 18:44:28,122 INFO L231 Difference]: Finished difference. Result has 869 places, 899 transitions, 1985 flow [2022-12-05 18:44:28,123 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=1910, PETRI_DIFFERENCE_MINUEND_PLACES=852, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=878, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1985, PETRI_PLACES=869, PETRI_TRANSITIONS=899} [2022-12-05 18:44:28,124 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, 30 predicate places. [2022-12-05 18:44:28,124 INFO L495 AbstractCegarLoop]: Abstraction has has 869 places, 899 transitions, 1985 flow [2022-12-05 18:44:28,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 861.0769230769231) internal successors, (11194), 13 states have internal predecessors, (11194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:44:28,136 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:28,137 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:28,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-05 18:44:28,337 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 18:44:28,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:28,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1269430113, now seen corresponding path program 2 times [2022-12-05 18:44:28,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:28,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182758526] [2022-12-05 18:44:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:28,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:29,152 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:29,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:29,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182758526] [2022-12-05 18:44:29,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182758526] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:29,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221484349] [2022-12-05 18:44:29,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:44:29,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:29,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:29,160 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 18:44:29,163 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 18:44:29,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 18:44:29,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:44:29,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-05 18:44:29,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:29,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-05 18:44:29,892 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 18:44:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-05 18:44:29,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:29,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221484349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:29,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:29,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-12-05 18:44:29,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225661281] [2022-12-05 18:44:29,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:29,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:44:29,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:29,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:44:29,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-12-05 18:44:29,952 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 814 out of 923 [2022-12-05 18:44:29,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 869 places, 899 transitions, 1985 flow. Second operand has 7 states, 7 states have (on average 820.1428571428571) internal successors, (5741), 7 states have internal predecessors, (5741), 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 18:44:29,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:29,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 814 of 923 [2022-12-05 18:44:29,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:34,311 INFO L130 PetriNetUnfolder]: 4908/19476 cut-off events. [2022-12-05 18:44:34,311 INFO L131 PetriNetUnfolder]: For 2317/2506 co-relation queries the response was YES. [2022-12-05 18:44:34,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29697 conditions, 19476 events. 4908/19476 cut-off events. For 2317/2506 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 184701 event pairs, 1776 based on Foata normal form. 189/17596 useless extension candidates. Maximal degree in co-relation 29461. Up to 2021 conditions per place. [2022-12-05 18:44:34,465 INFO L137 encePairwiseOnDemand]: 914/923 looper letters, 179 selfloop transitions, 33 changer transitions 0/1028 dead transitions. [2022-12-05 18:44:34,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 880 places, 1028 transitions, 2805 flow [2022-12-05 18:44:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-05 18:44:34,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-05 18:44:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 9959 transitions. [2022-12-05 18:44:34,484 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8991513181654027 [2022-12-05 18:44:34,484 INFO L175 Difference]: Start difference. First operand has 869 places, 899 transitions, 1985 flow. Second operand 12 states and 9959 transitions. [2022-12-05 18:44:34,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 880 places, 1028 transitions, 2805 flow [2022-12-05 18:44:34,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 873 places, 1028 transitions, 2784 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-12-05 18:44:34,526 INFO L231 Difference]: Finished difference. Result has 879 places, 921 transitions, 2166 flow [2022-12-05 18:44:34,527 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=1964, PETRI_DIFFERENCE_MINUEND_PLACES=862, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=881, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2166, PETRI_PLACES=879, PETRI_TRANSITIONS=921} [2022-12-05 18:44:34,530 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, 40 predicate places. [2022-12-05 18:44:34,531 INFO L495 AbstractCegarLoop]: Abstraction has has 879 places, 921 transitions, 2166 flow [2022-12-05 18:44:34,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 820.1428571428571) internal successors, (5741), 7 states have internal predecessors, (5741), 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 18:44:34,532 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:34,533 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:34,545 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 18:44:34,741 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 18:44:34,742 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:34,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash -589330235, now seen corresponding path program 1 times [2022-12-05 18:44:34,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:34,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219715045] [2022-12-05 18:44:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:34,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:35,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:35,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219715045] [2022-12-05 18:44:35,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219715045] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:35,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423364277] [2022-12-05 18:44:35,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:35,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:35,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:35,613 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 18:44:35,615 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 18:44:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:36,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-05 18:44:36,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:36,192 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-05 18:44:36,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:36,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423364277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:36,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:36,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-12-05 18:44:36,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728124941] [2022-12-05 18:44:36,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:36,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:44:36,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:36,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:44:36,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-12-05 18:44:36,200 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 845 out of 923 [2022-12-05 18:44:36,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 879 places, 921 transitions, 2166 flow. Second operand has 8 states, 8 states have (on average 847.625) internal successors, (6781), 8 states have internal predecessors, (6781), 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 18:44:36,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:36,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 845 of 923 [2022-12-05 18:44:36,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:37,490 INFO L130 PetriNetUnfolder]: 792/6993 cut-off events. [2022-12-05 18:44:37,490 INFO L131 PetriNetUnfolder]: For 1237/1702 co-relation queries the response was YES. [2022-12-05 18:44:37,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9309 conditions, 6993 events. 792/6993 cut-off events. For 1237/1702 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 52376 event pairs, 9 based on Foata normal form. 81/6498 useless extension candidates. Maximal degree in co-relation 9182. Up to 372 conditions per place. [2022-12-05 18:44:37,555 INFO L137 encePairwiseOnDemand]: 911/923 looper letters, 69 selfloop transitions, 12 changer transitions 0/954 dead transitions. [2022-12-05 18:44:37,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 888 places, 954 transitions, 2410 flow [2022-12-05 18:44:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:44:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:44:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 8522 transitions. [2022-12-05 18:44:37,675 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9232936078006501 [2022-12-05 18:44:37,675 INFO L175 Difference]: Start difference. First operand has 879 places, 921 transitions, 2166 flow. Second operand 10 states and 8522 transitions. [2022-12-05 18:44:37,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 888 places, 954 transitions, 2410 flow [2022-12-05 18:44:37,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 888 places, 954 transitions, 2410 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 18:44:37,699 INFO L231 Difference]: Finished difference. Result has 892 places, 928 transitions, 2229 flow [2022-12-05 18:44:37,701 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=2166, PETRI_DIFFERENCE_MINUEND_PLACES=879, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2229, PETRI_PLACES=892, PETRI_TRANSITIONS=928} [2022-12-05 18:44:37,701 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, 53 predicate places. [2022-12-05 18:44:37,702 INFO L495 AbstractCegarLoop]: Abstraction has has 892 places, 928 transitions, 2229 flow [2022-12-05 18:44:37,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 847.625) internal successors, (6781), 8 states have internal predecessors, (6781), 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 18:44:37,704 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:37,704 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:37,715 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 18:44:37,912 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 18:44:37,913 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:37,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1723263785, now seen corresponding path program 1 times [2022-12-05 18:44:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:37,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618859774] [2022-12-05 18:44:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:37,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:38,753 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:38,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:38,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618859774] [2022-12-05 18:44:38,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618859774] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:38,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926042467] [2022-12-05 18:44:38,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:38,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:38,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:38,757 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 18:44:38,760 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 18:44:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:39,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 81 conjunts are in the unsatisfiable core [2022-12-05 18:44:39,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:39,717 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-05 18:44:39,717 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 18:44:39,744 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:39,745 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 12 treesize of output 18 [2022-12-05 18:44:39,787 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:39,788 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 18:44:39,830 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:39,831 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 18:44:39,886 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:44:39,886 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 18:44:39,925 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:39,926 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 18:44:39,964 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:39,965 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 18:44:40,003 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,003 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 18:44:40,044 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,045 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 18:44:40,137 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-05 18:44:40,138 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 18:44:40,189 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,189 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 18:44:40,222 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,223 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 18:44:40,267 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,267 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 18:44:40,315 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:44:40,315 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 18:44:40,428 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-12-05 18:44:40,429 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 18:44:40,493 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,493 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 18:44:40,528 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,528 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 18:44:40,567 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,568 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 18:44:40,604 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,605 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 18:44:40,640 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,641 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 18:44:40,678 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,678 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 18:44:40,781 INFO L321 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-12-05 18:44:40,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-12-05 18:44:40,900 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:40,901 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 21 treesize of output 27 [2022-12-05 18:44:41,358 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:41,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 27 [2022-12-05 18:44:41,437 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-05 18:44:41,437 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 18:44:41,497 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-12-05 18:44:41,497 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 18:44:41,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-05 18:44:41,823 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 18:44:41,853 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 18:44:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-05 18:44:41,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 18:44:41,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926042467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:44:41,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:44:41,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9] total 22 [2022-12-05 18:44:41,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434952479] [2022-12-05 18:44:41,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:44:41,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-05 18:44:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:41,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-05 18:44:41,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-12-05 18:44:41,912 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 761 out of 923 [2022-12-05 18:44:41,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 892 places, 928 transitions, 2229 flow. Second operand has 15 states, 15 states have (on average 766.8666666666667) internal successors, (11503), 15 states have internal predecessors, (11503), 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 18:44:41,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:41,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 761 of 923 [2022-12-05 18:44:41,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:47,898 INFO L130 PetriNetUnfolder]: 6108/24843 cut-off events. [2022-12-05 18:44:47,898 INFO L131 PetriNetUnfolder]: For 11432/12098 co-relation queries the response was YES. [2022-12-05 18:44:47,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41556 conditions, 24843 events. 6108/24843 cut-off events. For 11432/12098 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 250354 event pairs, 1857 based on Foata normal form. 513/22872 useless extension candidates. Maximal degree in co-relation 41256. Up to 3293 conditions per place. [2022-12-05 18:44:48,050 INFO L137 encePairwiseOnDemand]: 905/923 looper letters, 192 selfloop transitions, 53 changer transitions 0/1018 dead transitions. [2022-12-05 18:44:48,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 911 places, 1018 transitions, 3063 flow [2022-12-05 18:44:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-05 18:44:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-05 18:44:48,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 15427 transitions. [2022-12-05 18:44:48,065 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8356988082340195 [2022-12-05 18:44:48,066 INFO L175 Difference]: Start difference. First operand has 892 places, 928 transitions, 2229 flow. Second operand 20 states and 15427 transitions. [2022-12-05 18:44:48,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 911 places, 1018 transitions, 3063 flow [2022-12-05 18:44:48,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 909 places, 1018 transitions, 3060 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:44:48,138 INFO L231 Difference]: Finished difference. Result has 912 places, 944 transitions, 2517 flow [2022-12-05 18:44:48,140 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=2226, PETRI_DIFFERENCE_MINUEND_PLACES=890, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=885, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2517, PETRI_PLACES=912, PETRI_TRANSITIONS=944} [2022-12-05 18:44:48,140 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, 73 predicate places. [2022-12-05 18:44:48,140 INFO L495 AbstractCegarLoop]: Abstraction has has 912 places, 944 transitions, 2517 flow [2022-12-05 18:44:48,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 766.8666666666667) internal successors, (11503), 15 states have internal predecessors, (11503), 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 18:44:48,144 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:48,144 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:48,155 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 18:44:48,354 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 18:44:48,355 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:48,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:48,355 INFO L85 PathProgramCache]: Analyzing trace with hash -467023725, now seen corresponding path program 1 times [2022-12-05 18:44:48,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:48,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989507513] [2022-12-05 18:44:48,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:48,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:49,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:49,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989507513] [2022-12-05 18:44:49,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989507513] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:49,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201023058] [2022-12-05 18:44:49,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:49,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:49,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:49,188 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 18:44:49,191 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 18:44:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:49,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-05 18:44:49,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:50,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 18:44:50,402 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:50,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201023058] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 18:44:50,402 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 18:44:50,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2022-12-05 18:44:50,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079644530] [2022-12-05 18:44:50,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 18:44:50,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-05 18:44:50,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:50,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-05 18:44:50,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2022-12-05 18:44:50,415 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 859 out of 923 [2022-12-05 18:44:50,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 912 places, 944 transitions, 2517 flow. Second operand has 20 states, 20 states have (on average 861.8) internal successors, (17236), 20 states have internal predecessors, (17236), 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 18:44:50,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:50,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 859 of 923 [2022-12-05 18:44:50,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:44:52,561 INFO L130 PetriNetUnfolder]: 420/4740 cut-off events. [2022-12-05 18:44:52,561 INFO L131 PetriNetUnfolder]: For 2572/2725 co-relation queries the response was YES. [2022-12-05 18:44:52,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6755 conditions, 4740 events. 420/4740 cut-off events. For 2572/2725 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 29411 event pairs, 0 based on Foata normal form. 49/4455 useless extension candidates. Maximal degree in co-relation 6605. Up to 88 conditions per place. [2022-12-05 18:44:52,599 INFO L137 encePairwiseOnDemand]: 910/923 looper letters, 56 selfloop transitions, 24 changer transitions 0/990 dead transitions. [2022-12-05 18:44:52,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 990 transitions, 2835 flow [2022-12-05 18:44:52,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-05 18:44:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-05 18:44:52,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 18988 transitions. [2022-12-05 18:44:52,620 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9350930759381464 [2022-12-05 18:44:52,620 INFO L175 Difference]: Start difference. First operand has 912 places, 944 transitions, 2517 flow. Second operand 22 states and 18988 transitions. [2022-12-05 18:44:52,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 990 transitions, 2835 flow [2022-12-05 18:44:52,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 923 places, 990 transitions, 2736 flow, removed 30 selfloop flow, removed 10 redundant places. [2022-12-05 18:44:52,653 INFO L231 Difference]: Finished difference. Result has 934 places, 952 transitions, 2564 flow [2022-12-05 18:44:52,654 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=2414, PETRI_DIFFERENCE_MINUEND_PLACES=902, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=926, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2564, PETRI_PLACES=934, PETRI_TRANSITIONS=952} [2022-12-05 18:44:52,655 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, 95 predicate places. [2022-12-05 18:44:52,655 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 952 transitions, 2564 flow [2022-12-05 18:44:52,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 861.8) internal successors, (17236), 20 states have internal predecessors, (17236), 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 18:44:52,660 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:44:52,661 INFO L213 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:44:52,674 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 18:44:52,871 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 18:44:52,871 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:44:52,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:44:52,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1389219131, now seen corresponding path program 2 times [2022-12-05 18:44:52,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:44:52,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466548256] [2022-12-05 18:44:52,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:44:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:44:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:44:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:54,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:44:54,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466548256] [2022-12-05 18:44:54,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466548256] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:44:54,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210328690] [2022-12-05 18:44:54,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 18:44:54,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:44:54,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:44:54,097 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 18:44:54,100 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 18:44:55,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 18:44:55,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 18:44:55,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-05 18:44:55,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 18:44:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:56,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 18:44:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:44:56,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210328690] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 18:44:56,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 18:44:56,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 30 [2022-12-05 18:44:56,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746515983] [2022-12-05 18:44:56,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 18:44:56,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-05 18:44:56,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:44:56,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-05 18:44:56,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=620, Unknown=0, NotChecked=0, Total=870 [2022-12-05 18:44:56,536 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 859 out of 923 [2022-12-05 18:44:56,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 952 transitions, 2564 flow. Second operand has 30 states, 30 states have (on average 862.3333333333334) internal successors, (25870), 30 states have internal predecessors, (25870), 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 18:44:56,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:44:56,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 859 of 923 [2022-12-05 18:44:56,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:45:15,557 WARN L233 SmtUtils]: Spent 12.16s on a formula simplification. DAG size of input: 51 DAG size of output: 50 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-05 18:45:19,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-05 18:45:20,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-05 18:45:33,803 INFO L130 PetriNetUnfolder]: 420/4842 cut-off events. [2022-12-05 18:45:33,803 INFO L131 PetriNetUnfolder]: For 2259/2334 co-relation queries the response was YES. [2022-12-05 18:45:33,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6949 conditions, 4842 events. 420/4842 cut-off events. For 2259/2334 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 28366 event pairs, 0 based on Foata normal form. 63/4575 useless extension candidates. Maximal degree in co-relation 6790. Up to 82 conditions per place. [2022-12-05 18:45:33,845 INFO L137 encePairwiseOnDemand]: 910/923 looper letters, 110 selfloop transitions, 42 changer transitions 0/1062 dead transitions. [2022-12-05 18:45:33,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 973 places, 1062 transitions, 3389 flow [2022-12-05 18:45:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-05 18:45:33,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-12-05 18:45:33,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 34530 transitions. [2022-12-05 18:45:33,871 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9352654387865655 [2022-12-05 18:45:33,871 INFO L175 Difference]: Start difference. First operand has 934 places, 952 transitions, 2564 flow. Second operand 40 states and 34530 transitions. [2022-12-05 18:45:33,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 973 places, 1062 transitions, 3389 flow [2022-12-05 18:45:33,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 965 places, 1062 transitions, 3374 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-05 18:45:33,902 INFO L231 Difference]: Finished difference. Result has 985 places, 972 transitions, 2893 flow [2022-12-05 18:45:33,903 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=2549, PETRI_DIFFERENCE_MINUEND_PLACES=926, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=952, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=2893, PETRI_PLACES=985, PETRI_TRANSITIONS=972} [2022-12-05 18:45:33,904 INFO L294 CegarLoopForPetriNet]: 839 programPoint places, 146 predicate places. [2022-12-05 18:45:33,904 INFO L495 AbstractCegarLoop]: Abstraction has has 985 places, 972 transitions, 2893 flow [2022-12-05 18:45:33,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 862.3333333333334) internal successors, (25870), 30 states have internal predecessors, (25870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 18:45:33,909 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:45:33,909 INFO L213 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:45:33,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-05 18:45:34,122 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 18:45:34,123 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 18:45:34,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:45:34,124 INFO L85 PathProgramCache]: Analyzing trace with hash 144652165, now seen corresponding path program 3 times [2022-12-05 18:45:34,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:45:34,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809633207] [2022-12-05 18:45:34,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:45:34,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:45:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:45:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:45:36,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:45:36,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809633207] [2022-12-05 18:45:36,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809633207] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 18:45:36,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558674374] [2022-12-05 18:45:36,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 18:45:36,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 18:45:36,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:45:36,576 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 18:45:36,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Received shutdown request... [2022-12-05 18:58:20,589 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 18:58:20,589 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-05 18:58:21,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-12-05 18:58:21,796 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process [2022-12-05 18:58:21,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137 [2022-12-05 18:58:21,815 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-05 18:58:21,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-05 18:58:21,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2022-12-05 18:58:21,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599680365] [2022-12-05 18:58:21,816 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-05 18:58:21,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-05 18:58:21,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:58:21,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-05 18:58:21,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2022-12-05 18:58:21,826 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 859 out of 923 [2022-12-05 18:58:21,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 985 places, 972 transitions, 2893 flow. Second operand has 27 states, 27 states have (on average 862.5555555555555) internal successors, (23289), 27 states have internal predecessors, (23289), 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 18:58:21,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:58:21,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 859 of 923 [2022-12-05 18:58:21,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:58:21,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 18:58:21,844 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2022-12-05 18:58:21,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 18:58:21,844 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 859/923 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 60 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). [2022-12-05 18:58:21,846 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2022-12-05 18:58:21,846 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2022-12-05 18:58:21,846 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2022-12-05 18:58:21,846 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2022-12-05 18:58:21,846 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2022-12-05 18:58:21,846 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2022-12-05 18:58:21,847 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2022-12-05 18:58:21,847 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2022-12-05 18:58:21,847 INFO L458 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2022-12-05 18:58:21,852 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:58:21,852 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:58:21,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:58:21 BasicIcfg [2022-12-05 18:58:21,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:58:21,858 INFO L158 Benchmark]: Toolchain (without parser) took 855289.30ms. Allocated memory was 200.3MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 165.3MB in the beginning and 2.9GB in the end (delta: -2.7GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-12-05 18:58:21,858 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 200.3MB. Free memory is still 176.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:58:21,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7211.11ms. Allocated memory was 200.3MB in the beginning and 285.2MB in the end (delta: 84.9MB). Free memory was 165.3MB in the beginning and 230.0MB in the end (delta: -64.7MB). Peak memory consumption was 142.0MB. Max. memory is 8.0GB. [2022-12-05 18:58:21,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 177.07ms. Allocated memory is still 285.2MB. Free memory was 230.0MB in the beginning and 218.0MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-05 18:58:21,859 INFO L158 Benchmark]: Boogie Preprocessor took 111.98ms. Allocated memory is still 285.2MB. Free memory was 218.0MB in the beginning and 212.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-12-05 18:58:21,859 INFO L158 Benchmark]: RCFGBuilder took 1196.46ms. Allocated memory is still 285.2MB. Free memory was 211.7MB in the beginning and 140.9MB in the end (delta: 70.8MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2022-12-05 18:58:21,860 INFO L158 Benchmark]: TraceAbstraction took 846586.05ms. Allocated memory was 285.2MB in the beginning and 4.7GB in the end (delta: 4.4GB). Free memory was 140.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-12-05 18:58:21,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 200.3MB. Free memory is still 176.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 7211.11ms. Allocated memory was 200.3MB in the beginning and 285.2MB in the end (delta: 84.9MB). Free memory was 165.3MB in the beginning and 230.0MB in the end (delta: -64.7MB). Peak memory consumption was 142.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 177.07ms. Allocated memory is still 285.2MB. Free memory was 230.0MB in the beginning and 218.0MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 111.98ms. Allocated memory is still 285.2MB. Free memory was 218.0MB in the beginning and 212.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1196.46ms. Allocated memory is still 285.2MB. Free memory was 211.7MB in the beginning and 140.9MB in the end (delta: 70.8MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. * TraceAbstraction took 846586.05ms. Allocated memory was 285.2MB in the beginning and 4.7GB in the end (delta: 4.4GB). Free memory was 140.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 859/923 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 60 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 859/923 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 60 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 7068]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 859/923 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 60 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 7069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 859/923 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 60 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 859/923 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 60 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 859/923 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 60 conditions, 2 events (0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/2 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 1119 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 846.4s, OverallIterations: 11, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 58.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2095 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2095 mSDsluCounter, 1362 SdHoareTripleChecker+Invalid, 8.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1070 mSDsCounter, 243 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3021 IncrementalHoareTripleChecker+Invalid, 3264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 243 mSolverCounterUnsat, 292 mSDtfsCounter, 3021 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3576 GetRequests, 3300 SyntacticMatches, 7 SemanticMatches, 269 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2041 ImplicationChecksByTransitivity, 32.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2893occurred in iteration=10, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 5795 NumberOfCodeBlocks, 5767 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 6826 ConstructedInterpolants, 7 QuantifiedInterpolants, 17495 SizeOfPredicates, 66 NumberOfNonLiveVariables, 7775 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 139/3033 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown