/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_get.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:11:53,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:11:53,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:11:53,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:11:53,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:11:53,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:11:53,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:11:53,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:11:53,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:11:53,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:11:53,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:11:53,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:11:53,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:11:53,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:11:53,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:11:53,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:11:53,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:11:53,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:11:53,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:11:53,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:11:53,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:11:53,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:11:53,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:11:53,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:11:53,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:11:53,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:11:53,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:11:53,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:11:53,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:11:53,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:11:53,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:11:53,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:11:53,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:11:53,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:11:53,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:11:53,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:11:53,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:11:53,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:11:53,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:11:53,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:11:53,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:11:53,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 19:11:53,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:11:53,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:11:53,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:11:53,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:11:53,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:11:53,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:11:53,425 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:11:53,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:11:53,425 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:11:53,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:11:53,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:11:53,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:11:53,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:11:53,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:11:53,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:11:53,435 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:11:53,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:11:53,435 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:11:53,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:11:53,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:11:53,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:11:53,435 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:11:53,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:11:53,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:11:53,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:11:53,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:11:53,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:11:53,436 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:11:53,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:11:53,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:11:53,436 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:11:53,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:11:53,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:11:53,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:11:53,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:11:53,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:11:53,741 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:11:53,743 INFO L432 ainManager$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_get.i [2022-12-11 19:11:54,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:11:55,150 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:11:55,151 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2022-12-11 19:11:55,179 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577f53ef2/bb874f4756ba4116bf2adb11577cca32/FLAGf2f8ebe17 [2022-12-11 19:11:55,193 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577f53ef2/bb874f4756ba4116bf2adb11577cca32 [2022-12-11 19:11:55,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:11:55,196 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:11:55,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:11:55,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:11:55,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:11:55,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:11:55" (1/1) ... [2022-12-11 19:11:55,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125cf732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:11:55, skipping insertion in model container [2022-12-11 19:11:55,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:11:55" (1/1) ... [2022-12-11 19:11:55,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:11:55,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:11:55,568 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_get.i[5469,5482] [2022-12-11 19:11:55,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:55,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:55,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:55,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:55,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:55,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:55,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:55,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:55,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:55,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:55,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:55,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:55,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:55,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:55,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:55,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:55,959 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-11 19:11:55,966 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:11:55,972 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:11:55,985 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:11:56,149 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:11:56,157 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:11:56,351 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-11 19:11:56,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:56,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:56,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:56,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:56,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:56,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:56,663 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-11 19:11:56,666 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-11 19:11:56,669 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-11 19:11:56,763 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-11 19:11:56,764 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:11:56,767 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-11 19:11:56,768 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:11:56,924 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-11 19:11:57,286 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:11:57,295 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:11:57,375 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-11 19:11:57,381 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-11 19:11:57,584 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-11 19:11:57,766 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-11 19:11:57,772 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-11 19:11:57,920 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-11 19:11:58,137 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-11 19:11:58,137 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-11 19:11:58,137 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-11 19:11:59,135 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-11 19:11:59,135 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:11:59,138 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:11:59,141 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:11:59,181 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:11:59,595 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 19:11:59,595 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 19:11:59,623 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-11 19:11:59,623 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-11 19:11:59,629 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-11 19:11:59,630 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 19:11:59,630 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-11 19:11:59,630 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-11 19:11:59,633 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 19:11:59,634 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-11 19:11:59,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:11:59,661 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:11:59,670 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_get.i[5469,5482] [2022-12-11 19:11:59,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,694 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-11 19:11:59,694 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:11:59,694 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:11:59,694 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-11 19:11:59,702 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:11:59,703 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-11 19:11:59,704 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-11 19:11:59,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 19:11:59,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 19:11:59,718 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-11 19:11:59,718 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-11 19:11:59,719 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-11 19:11:59,723 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-11 19:11:59,723 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:11:59,723 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-11 19:11:59,724 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-11 19:11:59,732 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-11 19:11:59,741 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:11:59,742 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-11 19:11:59,744 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-11 19:11:59,745 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-11 19:11:59,750 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-11 19:11:59,754 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-11 19:11:59,754 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-11 19:11:59,758 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-11 19:11:59,762 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-11 19:11:59,763 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-11 19:11:59,763 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-11 19:11:59,822 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-11 19:11:59,823 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:11:59,825 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:11:59,831 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:11:59,833 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-11 19:11:59,864 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 19:11:59,865 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-11 19:11:59,869 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-11 19:11:59,869 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-11 19:11:59,870 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-11 19:11:59,871 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 19:11:59,871 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-11 19:11:59,871 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-11 19:11:59,872 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-11 19:11:59,872 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-11 19:11:59,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:12:00,194 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:12:00,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00 WrapperNode [2022-12-11 19:12:00,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:12:00,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:12:00,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:12:00,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:12:00,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,368 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 54, statements flattened = 774 [2022-12-11 19:12:00,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:12:00,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:12:00,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:12:00,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:12:00,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:12:00,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:12:00,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:12:00,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:12:00,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (1/1) ... [2022-12-11 19:12:00,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:12:00,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:00,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-11 19:12:00,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-11 19:12:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 19:12:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-11 19:12:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:12:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-11 19:12:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-11 19:12:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:12:00,510 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:12:00,951 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:12:00,952 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:12:01,602 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:12:01,618 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:12:01,619 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-11 19:12:01,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:12:01 BoogieIcfgContainer [2022-12-11 19:12:01,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:12:01,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:12:01,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:12:01,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:12:01,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:11:55" (1/3) ... [2022-12-11 19:12:01,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f18ecd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:12:01, skipping insertion in model container [2022-12-11 19:12:01,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:12:00" (2/3) ... [2022-12-11 19:12:01,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f18ecd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:12:01, skipping insertion in model container [2022-12-11 19:12:01,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:12:01" (3/3) ... [2022-12-11 19:12:01,657 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_get.i [2022-12-11 19:12:01,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:12:01,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-11 19:12:01,674 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:12:01,758 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 19:12:01,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 792 places, 856 transitions, 1728 flow [2022-12-11 19:12:01,964 INFO L130 PetriNetUnfolder]: 71/854 cut-off events. [2022-12-11 19:12:01,964 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 19:12:01,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 854 events. 71/854 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1429 event pairs, 0 based on Foata normal form. 0/780 useless extension candidates. Maximal degree in co-relation 652. Up to 9 conditions per place. [2022-12-11 19:12:01,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 792 places, 856 transitions, 1728 flow [2022-12-11 19:12:01,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 782 places, 846 transitions, 1701 flow [2022-12-11 19:12:02,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:12:02,004 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;@7128aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:12:02,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-11 19:12:02,063 INFO L130 PetriNetUnfolder]: 19/396 cut-off events. [2022-12-11 19:12:02,063 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 19:12:02,064 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:02,064 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:12:02,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:02,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:02,069 INFO L85 PathProgramCache]: Analyzing trace with hash 49780713, now seen corresponding path program 1 times [2022-12-11 19:12:02,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:02,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322398088] [2022-12-11 19:12:02,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:02,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:02,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:02,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322398088] [2022-12-11 19:12:02,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322398088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:02,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:02,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 19:12:02,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477897340] [2022-12-11 19:12:02,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:02,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 19:12:02,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:02,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 19:12:02,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-11 19:12:02,948 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 786 out of 856 [2022-12-11 19:12:02,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 846 transitions, 1701 flow. Second operand has 9 states, 9 states have (on average 788.1111111111111) internal successors, (7093), 9 states have internal predecessors, (7093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:02,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:02,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 786 of 856 [2022-12-11 19:12:02,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:03,308 INFO L130 PetriNetUnfolder]: 39/808 cut-off events. [2022-12-11 19:12:03,309 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-12-11 19:12:03,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 808 events. 39/808 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1270 event pairs, 0 based on Foata normal form. 20/785 useless extension candidates. Maximal degree in co-relation 656. Up to 12 conditions per place. [2022-12-11 19:12:03,314 INFO L137 encePairwiseOnDemand]: 808/856 looper letters, 18 selfloop transitions, 16 changer transitions 1/808 dead transitions. [2022-12-11 19:12:03,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 791 places, 808 transitions, 1693 flow [2022-12-11 19:12:03,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-11 19:12:03,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-11 19:12:03,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 12642 transitions. [2022-12-11 19:12:03,343 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9230432242990654 [2022-12-11 19:12:03,345 INFO L175 Difference]: Start difference. First operand has 782 places, 846 transitions, 1701 flow. Second operand 16 states and 12642 transitions. [2022-12-11 19:12:03,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 791 places, 808 transitions, 1693 flow [2022-12-11 19:12:03,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 788 places, 808 transitions, 1688 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:12:03,364 INFO L231 Difference]: Finished difference. Result has 788 places, 807 transitions, 1650 flow [2022-12-11 19:12:03,366 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1620, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=792, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1650, PETRI_PLACES=788, PETRI_TRANSITIONS=807} [2022-12-11 19:12:03,369 INFO L295 CegarLoopForPetriNet]: 782 programPoint places, 6 predicate places. [2022-12-11 19:12:03,369 INFO L495 AbstractCegarLoop]: Abstraction has has 788 places, 807 transitions, 1650 flow [2022-12-11 19:12:03,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 788.1111111111111) internal successors, (7093), 9 states have internal predecessors, (7093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:03,373 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:03,373 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:12:03,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:12:03,374 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:03,375 INFO L85 PathProgramCache]: Analyzing trace with hash 889962922, now seen corresponding path program 1 times [2022-12-11 19:12:03,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:03,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914139642] [2022-12-11 19:12:03,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:03,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:03,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:03,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914139642] [2022-12-11 19:12:03,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914139642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:03,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:03,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:12:03,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042531678] [2022-12-11 19:12:03,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:03,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:12:03,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:03,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:12:03,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:12:03,995 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 778 out of 856 [2022-12-11 19:12:03,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 807 transitions, 1650 flow. Second operand has 6 states, 6 states have (on average 782.6666666666666) internal successors, (4696), 6 states have internal predecessors, (4696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:03,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:03,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 778 of 856 [2022-12-11 19:12:04,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:04,265 INFO L130 PetriNetUnfolder]: 68/1192 cut-off events. [2022-12-11 19:12:04,265 INFO L131 PetriNetUnfolder]: For 4/8 co-relation queries the response was YES. [2022-12-11 19:12:04,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 1192 events. 68/1192 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3381 event pairs, 2 based on Foata normal form. 0/1119 useless extension candidates. Maximal degree in co-relation 812. Up to 34 conditions per place. [2022-12-11 19:12:04,273 INFO L137 encePairwiseOnDemand]: 846/856 looper letters, 46 selfloop transitions, 9 changer transitions 0/819 dead transitions. [2022-12-11 19:12:04,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 819 transitions, 1788 flow [2022-12-11 19:12:04,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-11 19:12:04,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-11 19:12:04,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 6280 transitions. [2022-12-11 19:12:04,282 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9170560747663551 [2022-12-11 19:12:04,282 INFO L175 Difference]: Start difference. First operand has 788 places, 807 transitions, 1650 flow. Second operand 8 states and 6280 transitions. [2022-12-11 19:12:04,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 819 transitions, 1788 flow [2022-12-11 19:12:04,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 777 places, 819 transitions, 1756 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-11 19:12:04,292 INFO L231 Difference]: Finished difference. Result has 778 places, 809 transitions, 1653 flow [2022-12-11 19:12:04,293 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1614, PETRI_DIFFERENCE_MINUEND_PLACES=770, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=805, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=796, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1653, PETRI_PLACES=778, PETRI_TRANSITIONS=809} [2022-12-11 19:12:04,294 INFO L295 CegarLoopForPetriNet]: 782 programPoint places, -4 predicate places. [2022-12-11 19:12:04,294 INFO L495 AbstractCegarLoop]: Abstraction has has 778 places, 809 transitions, 1653 flow [2022-12-11 19:12:04,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 782.6666666666666) internal successors, (4696), 6 states have internal predecessors, (4696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:04,296 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:04,297 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:12:04,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:12:04,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:04,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2102801257, now seen corresponding path program 1 times [2022-12-11 19:12:04,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:04,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544106862] [2022-12-11 19:12:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:04,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:04,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544106862] [2022-12-11 19:12:04,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544106862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:04,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:12:04,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 19:12:04,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746842289] [2022-12-11 19:12:04,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:04,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 19:12:04,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:04,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 19:12:04,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-11 19:12:04,705 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 798 out of 856 [2022-12-11 19:12:04,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 778 places, 809 transitions, 1653 flow. Second operand has 5 states, 5 states have (on average 799.6) internal successors, (3998), 5 states have internal predecessors, (3998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:04,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:04,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 798 of 856 [2022-12-11 19:12:04,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:04,914 INFO L130 PetriNetUnfolder]: 87/1461 cut-off events. [2022-12-11 19:12:04,915 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-12-11 19:12:04,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 1461 events. 87/1461 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3964 event pairs, 0 based on Foata normal form. 0/1366 useless extension candidates. Maximal degree in co-relation 567. Up to 16 conditions per place. [2022-12-11 19:12:04,924 INFO L137 encePairwiseOnDemand]: 849/856 looper letters, 25 selfloop transitions, 6 changer transitions 0/816 dead transitions. [2022-12-11 19:12:04,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 816 transitions, 1733 flow [2022-12-11 19:12:04,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 19:12:04,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 19:12:04,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4819 transitions. [2022-12-11 19:12:04,931 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9382788161993769 [2022-12-11 19:12:04,931 INFO L175 Difference]: Start difference. First operand has 778 places, 809 transitions, 1653 flow. Second operand 6 states and 4819 transitions. [2022-12-11 19:12:04,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 816 transitions, 1733 flow [2022-12-11 19:12:04,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 816 transitions, 1724 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-11 19:12:04,941 INFO L231 Difference]: Finished difference. Result has 779 places, 810 transitions, 1664 flow [2022-12-11 19:12:04,943 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1644, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=809, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1664, PETRI_PLACES=779, PETRI_TRANSITIONS=810} [2022-12-11 19:12:04,943 INFO L295 CegarLoopForPetriNet]: 782 programPoint places, -3 predicate places. [2022-12-11 19:12:04,943 INFO L495 AbstractCegarLoop]: Abstraction has has 779 places, 810 transitions, 1664 flow [2022-12-11 19:12:04,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 799.6) internal successors, (3998), 5 states have internal predecessors, (3998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:04,945 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:04,945 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:12:04,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:12:04,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:04,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:04,946 INFO L85 PathProgramCache]: Analyzing trace with hash -9878413, now seen corresponding path program 1 times [2022-12-11 19:12:04,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:04,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576060329] [2022-12-11 19:12:04,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:04,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:05,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:05,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576060329] [2022-12-11 19:12:05,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576060329] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:05,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784329956] [2022-12-11 19:12:05,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:05,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:05,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:05,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 19:12:05,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-11 19:12:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:05,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-11 19:12:05,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:12:05,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-11 19:12:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 19:12:05,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 19:12:05,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784329956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:05,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 19:12:05,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-12-11 19:12:05,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157568522] [2022-12-11 19:12:05,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:05,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 19:12:05,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:05,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 19:12:05,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-11 19:12:05,828 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 755 out of 856 [2022-12-11 19:12:05,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 810 transitions, 1664 flow. Second operand has 7 states, 7 states have (on average 760.2857142857143) internal successors, (5322), 7 states have internal predecessors, (5322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:05,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:05,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 755 of 856 [2022-12-11 19:12:05,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:06,636 INFO L130 PetriNetUnfolder]: 771/4278 cut-off events. [2022-12-11 19:12:06,636 INFO L131 PetriNetUnfolder]: For 89/197 co-relation queries the response was YES. [2022-12-11 19:12:06,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5357 conditions, 4278 events. 771/4278 cut-off events. For 89/197 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 28277 event pairs, 135 based on Foata normal form. 0/3929 useless extension candidates. Maximal degree in co-relation 5132. Up to 333 conditions per place. [2022-12-11 19:12:06,664 INFO L137 encePairwiseOnDemand]: 845/856 looper letters, 95 selfloop transitions, 10 changer transitions 0/844 dead transitions. [2022-12-11 19:12:06,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 787 places, 844 transitions, 1951 flow [2022-12-11 19:12:06,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-11 19:12:06,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-11 19:12:06,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 8407 transitions. [2022-12-11 19:12:06,677 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8928419711129991 [2022-12-11 19:12:06,677 INFO L175 Difference]: Start difference. First operand has 779 places, 810 transitions, 1664 flow. Second operand 11 states and 8407 transitions. [2022-12-11 19:12:06,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 787 places, 844 transitions, 1951 flow [2022-12-11 19:12:06,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 783 places, 844 transitions, 1941 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-11 19:12:06,689 INFO L231 Difference]: Finished difference. Result has 783 places, 808 transitions, 1670 flow [2022-12-11 19:12:06,691 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1650, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1670, PETRI_PLACES=783, PETRI_TRANSITIONS=808} [2022-12-11 19:12:06,691 INFO L295 CegarLoopForPetriNet]: 782 programPoint places, 1 predicate places. [2022-12-11 19:12:06,691 INFO L495 AbstractCegarLoop]: Abstraction has has 783 places, 808 transitions, 1670 flow [2022-12-11 19:12:06,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 760.2857142857143) internal successors, (5322), 7 states have internal predecessors, (5322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:06,694 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:12:06,695 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:12:06,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-11 19:12:06,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:06,901 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-11 19:12:06,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:12:06,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1191577647, now seen corresponding path program 1 times [2022-12-11 19:12:06,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:12:06,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863945023] [2022-12-11 19:12:06,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:06,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:12:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:12:07,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:12:07,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863945023] [2022-12-11 19:12:07,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863945023] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 19:12:07,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098617301] [2022-12-11 19:12:07,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:12:07,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:07,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:12:07,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 19:12:07,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-11 19:12:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:12:07,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-11 19:12:07,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 19:12:07,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-11 19:12:08,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-11 19:12:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 19:12:08,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-11 19:12:08,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098617301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:12:08,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-11 19:12:08,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2022-12-11 19:12:08,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502151227] [2022-12-11 19:12:08,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:12:08,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-11 19:12:08,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:12:08,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-11 19:12:08,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-11 19:12:08,085 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 737 out of 856 [2022-12-11 19:12:08,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 808 transitions, 1670 flow. Second operand has 11 states, 11 states have (on average 742.4545454545455) internal successors, (8167), 11 states have internal predecessors, (8167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:08,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:12:08,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 737 of 856 [2022-12-11 19:12:08,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:12:09,126 INFO L130 PetriNetUnfolder]: 1178/5188 cut-off events. [2022-12-11 19:12:09,126 INFO L131 PetriNetUnfolder]: For 185/237 co-relation queries the response was YES. [2022-12-11 19:12:09,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7135 conditions, 5188 events. 1178/5188 cut-off events. For 185/237 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 42492 event pairs, 390 based on Foata normal form. 0/4812 useless extension candidates. Maximal degree in co-relation 6913. Up to 859 conditions per place. [2022-12-11 19:12:09,147 INFO L137 encePairwiseOnDemand]: 841/856 looper letters, 0 selfloop transitions, 0 changer transitions 906/906 dead transitions. [2022-12-11 19:12:09,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 906 transitions, 2262 flow [2022-12-11 19:12:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-11 19:12:09,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-11 19:12:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 14924 transitions. [2022-12-11 19:12:09,165 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8717289719626168 [2022-12-11 19:12:09,165 INFO L175 Difference]: Start difference. First operand has 783 places, 808 transitions, 1670 flow. Second operand 20 states and 14924 transitions. [2022-12-11 19:12:09,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 906 transitions, 2262 flow [2022-12-11 19:12:09,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 790 places, 906 transitions, 2236 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-12-11 19:12:09,176 INFO L231 Difference]: Finished difference. Result has 790 places, 0 transitions, 0 flow [2022-12-11 19:12:09,177 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=856, PETRI_DIFFERENCE_MINUEND_FLOW=1646, PETRI_DIFFERENCE_MINUEND_PLACES=771, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=806, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=0, PETRI_PLACES=790, PETRI_TRANSITIONS=0} [2022-12-11 19:12:09,179 INFO L295 CegarLoopForPetriNet]: 782 programPoint places, 8 predicate places. [2022-12-11 19:12:09,179 INFO L495 AbstractCegarLoop]: Abstraction has has 790 places, 0 transitions, 0 flow [2022-12-11 19:12:09,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 742.4545454545455) internal successors, (8167), 11 states have internal predecessors, (8167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:12:09,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-11 19:12:09,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2022-12-11 19:12:09,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-11 19:12:09,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-11 19:12:09,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-11 19:12:09,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-11 19:12:09,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-11 19:12:09,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-11 19:12:09,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 19:12:09,396 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-11 19:12:09,401 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:12:09,401 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:12:09,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:12:09 BasicIcfg [2022-12-11 19:12:09,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:12:09,406 INFO L158 Benchmark]: Toolchain (without parser) took 14209.01ms. Allocated memory was 200.3MB in the beginning and 469.8MB in the end (delta: 269.5MB). Free memory was 164.9MB in the beginning and 125.6MB in the end (delta: 39.3MB). Peak memory consumption was 363.8MB. Max. memory is 8.0GB. [2022-12-11 19:12:09,408 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 200.3MB. Free memory was 178.4MB in the beginning and 178.4MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:12:09,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4996.88ms. Allocated memory was 200.3MB in the beginning and 299.9MB in the end (delta: 99.6MB). Free memory was 164.6MB in the beginning and 221.4MB in the end (delta: -56.8MB). Peak memory consumption was 126.8MB. Max. memory is 8.0GB. [2022-12-11 19:12:09,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 171.58ms. Allocated memory is still 299.9MB. Free memory was 221.4MB in the beginning and 209.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-11 19:12:09,411 INFO L158 Benchmark]: Boogie Preprocessor took 78.27ms. Allocated memory is still 299.9MB. Free memory was 209.8MB in the beginning and 204.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-11 19:12:09,411 INFO L158 Benchmark]: RCFGBuilder took 1173.16ms. Allocated memory is still 299.9MB. Free memory was 203.5MB in the beginning and 136.4MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. [2022-12-11 19:12:09,412 INFO L158 Benchmark]: TraceAbstraction took 7781.68ms. Allocated memory was 299.9MB in the beginning and 469.8MB in the end (delta: 169.9MB). Free memory was 134.9MB in the beginning and 125.6MB in the end (delta: 9.2MB). Peak memory consumption was 234.7MB. Max. memory is 8.0GB. [2022-12-11 19:12:09,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 200.3MB. Free memory was 178.4MB in the beginning and 178.4MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4996.88ms. Allocated memory was 200.3MB in the beginning and 299.9MB in the end (delta: 99.6MB). Free memory was 164.6MB in the beginning and 221.4MB in the end (delta: -56.8MB). Peak memory consumption was 126.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 171.58ms. Allocated memory is still 299.9MB. Free memory was 221.4MB in the beginning and 209.8MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.27ms. Allocated memory is still 299.9MB. Free memory was 209.8MB in the beginning and 204.1MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1173.16ms. Allocated memory is still 299.9MB. Free memory was 203.5MB in the beginning and 136.4MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. * TraceAbstraction took 7781.68ms. Allocated memory was 299.9MB in the beginning and 469.8MB in the end (delta: 169.9MB). Free memory was 134.9MB in the beginning and 125.6MB in the end (delta: 9.2MB). Peak memory consumption was 234.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 1005 locations, 7 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: 7.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 454 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 454 mSDsluCounter, 1104 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 915 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 836 IncrementalHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 189 mSDtfsCounter, 836 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 679 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1701occurred in iteration=0, InterpolantAutomatonStates: 61, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1934 NumberOfCodeBlocks, 1934 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1927 ConstructedInterpolants, 0 QuantifiedInterpolants, 2344 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2113 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-11 19:12:09,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...