/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:37:10,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:37:10,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:37:10,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:37:10,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:37:10,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:37:10,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:37:10,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:37:10,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:37:10,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:37:10,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:37:10,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:37:10,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:37:10,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:37:10,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:37:10,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:37:10,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:37:10,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:37:10,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:37:10,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:37:10,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:37:10,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:37:10,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:37:10,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:37:10,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:37:10,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:37:10,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:37:10,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:37:10,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:37:10,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:37:10,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:37:10,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:37:10,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:37:10,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:37:10,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:37:10,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:37:10,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:37:10,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:37:10,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:37:10,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:37:10,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:37:10,179 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-SemanticLbe.epf [2022-12-05 20:37:10,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:37:10,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:37:10,203 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:37:10,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:37:10,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:37:10,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:37:10,204 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:37:10,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:37:10,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:37:10,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:37:10,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:37:10,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:37:10,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:37:10,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:37:10,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:37:10,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:37:10,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:37:10,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:37:10,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:37:10,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:37:10,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:37:10,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:37:10,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:37:10,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:37:10,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:37:10,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:37:10,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:37:10,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:37:10,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:37:10,207 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:37:10,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:37:10,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:37:10,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:37:10,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:37:10,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:37:10,475 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:37:10,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-05 20:37:11,356 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:37:11,808 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:37:11,808 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-05 20:37:11,846 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c526dcb21/bc82554f3c1d4af08494c472581c923e/FLAG1dcfeaa8e [2022-12-05 20:37:11,860 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c526dcb21/bc82554f3c1d4af08494c472581c923e [2022-12-05 20:37:11,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:37:11,863 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:37:11,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:37:11,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:37:11,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:37:11,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:37:11" (1/1) ... [2022-12-05 20:37:11,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710c1203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:11, skipping insertion in model container [2022-12-05 20:37:11,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:37:11" (1/1) ... [2022-12-05 20:37:11,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:37:11,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:37:12,253 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_open_pc8736x_gpio_change.i[5469,5482] [2022-12-05 20:37:12,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,588 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:37:12,597 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:37:12,604 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:37:12,617 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:37:12,769 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:37:12,775 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:37:12,893 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:37:12,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:12,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:12,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:13,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:13,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:13,175 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:37:13,178 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:37:13,180 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:37:13,248 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:37:13,248 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:37:13,251 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:37:13,251 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:37:13,381 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:37:13,738 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:37:13,744 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:37:13,778 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:37:13,781 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:37:13,943 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:37:14,052 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:37:14,055 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:37:14,161 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:37:14,281 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:37:14,282 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:37:14,282 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:37:14,900 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:37:14,901 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:37:14,904 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:37:14,908 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:37:14,910 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:37:15,290 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 20:37:15,290 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 20:37:15,323 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 20:37:15,324 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 20:37:15,325 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 20:37:15,326 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 20:37:15,327 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 20:37:15,327 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 20:37:15,329 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 20:37:15,329 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 20:37:15,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:37:15,369 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:37:15,386 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_open_pc8736x_gpio_change.i[5469,5482] [2022-12-05 20:37:15,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,395 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:37:15,395 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:37:15,395 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:37:15,395 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:37:15,398 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:37:15,399 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:37:15,402 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:37:15,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:37:15,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:37:15,424 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:37:15,424 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:37:15,424 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:37:15,426 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:37:15,426 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:37:15,426 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:37:15,427 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:37:15,432 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:37:15,441 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:37:15,442 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:37:15,444 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:37:15,444 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:37:15,449 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:37:15,453 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:37:15,453 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:37:15,458 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:37:15,461 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:37:15,461 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:37:15,461 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:37:15,511 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:37:15,512 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:37:15,513 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:37:15,519 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:37:15,522 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:37:15,553 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 20:37:15,554 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-05 20:37:15,557 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-05 20:37:15,558 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-05 20:37:15,558 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-05 20:37:15,560 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 20:37:15,560 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-05 20:37:15,560 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-05 20:37:15,560 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-05 20:37:15,560 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-05 20:37:15,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:37:15,918 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:37:15,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15 WrapperNode [2022-12-05 20:37:15,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:37:15,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:37:15,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:37:15,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:37:15,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:15,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,060 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 56, statements flattened = 775 [2022-12-05 20:37:16,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:37:16,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:37:16,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:37:16,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:37:16,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,124 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:37:16,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:37:16,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:37:16,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:37:16,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (1/1) ... [2022-12-05 20:37:16,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:37:16,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:37:16,176 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 20:37:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:37:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 20:37:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:37:16,199 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 20:37:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 20:37:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-05 20:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-05 20:37:16,212 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 20:37:16,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:37:16,214 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 20:37:16,565 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:37:16,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:37:17,172 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:37:17,179 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:37:17,180 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2022-12-05 20:37:17,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:37:17 BoogieIcfgContainer [2022-12-05 20:37:17,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:37:17,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:37:17,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:37:17,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:37:17,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:37:11" (1/3) ... [2022-12-05 20:37:17,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78aa719d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:37:17, skipping insertion in model container [2022-12-05 20:37:17,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:37:15" (2/3) ... [2022-12-05 20:37:17,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78aa719d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:37:17, skipping insertion in model container [2022-12-05 20:37:17,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:37:17" (3/3) ... [2022-12-05 20:37:17,186 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2022-12-05 20:37:17,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:37:17,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 20:37:17,197 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:37:17,298 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:37:17,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 794 places, 857 transitions, 1730 flow [2022-12-05 20:37:17,562 INFO L130 PetriNetUnfolder]: 70/855 cut-off events. [2022-12-05 20:37:17,563 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:37:17,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 855 events. 70/855 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1433 event pairs, 0 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 653. Up to 9 conditions per place. [2022-12-05 20:37:17,570 INFO L82 GeneralOperation]: Start removeDead. Operand has 794 places, 857 transitions, 1730 flow [2022-12-05 20:37:17,577 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 784 places, 847 transitions, 1703 flow [2022-12-05 20:37:17,578 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:37:17,592 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 784 places, 847 transitions, 1703 flow [2022-12-05 20:37:17,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 784 places, 847 transitions, 1703 flow [2022-12-05 20:37:17,721 INFO L130 PetriNetUnfolder]: 70/847 cut-off events. [2022-12-05 20:37:17,721 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:37:17,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 847 events. 70/847 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1345 event pairs, 0 based on Foata normal form. 0/773 useless extension candidates. Maximal degree in co-relation 653. Up to 9 conditions per place. [2022-12-05 20:37:17,738 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 784 places, 847 transitions, 1703 flow [2022-12-05 20:37:17,738 INFO L188 LiptonReduction]: Number of co-enabled transitions 25632 [2022-12-05 20:37:20,220 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:20,221 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:22,606 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:22,606 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:22,607 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:22,608 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:22,692 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:22,692 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:23,499 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:23,500 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:23,940 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:23,940 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:37:23,942 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:23,942 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:25,097 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:25,098 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:27,271 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:27,276 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:27,277 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:27,278 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:28,842 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:28,842 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:28,845 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:28,845 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:28,852 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:28,853 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:28,854 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:28,855 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:29,339 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:29,362 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:29,363 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:29,364 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:29,817 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:29,817 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:30,380 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:30,380 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:30,409 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:30,409 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:30,410 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:30,411 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:32,896 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:32,897 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:35,494 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:35,499 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:37:35,503 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:35,503 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-05 20:37:35,506 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:35,507 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2022-12-05 20:37:35,512 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:35,512 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:37,803 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:37,803 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:37,805 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:37,806 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:37,810 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:37,811 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:37,814 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:37,814 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:40,770 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:40,771 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:40,780 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:40,780 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:40,895 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:40,896 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:40,897 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:40,897 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:44,532 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:44,532 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:44,533 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:44,534 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:37:50,705 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:50,707 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:37:50,717 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:50,717 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2022-12-05 20:37:50,719 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:50,721 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:37:50,725 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:50,727 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:37:50,728 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:37:50,729 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:38:05,961 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:38:05,961 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:38:05,962 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:38:05,963 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:38:28,561 WARN L233 SmtUtils]: Spent 22.49s on a formula simplification that was a NOOP. DAG size: 552 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:38:59,931 WARN L233 SmtUtils]: Spent 31.36s on a formula simplification that was a NOOP. DAG size: 496 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:39:44,824 WARN L233 SmtUtils]: Spent 44.89s on a formula simplification that was a NOOP. DAG size: 552 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:40:03,550 WARN L233 SmtUtils]: Spent 18.72s on a formula simplification that was a NOOP. DAG size: 496 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:40:46,564 WARN L233 SmtUtils]: Spent 41.52s on a formula simplification that was a NOOP. DAG size: 543 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:41:06,094 WARN L233 SmtUtils]: Spent 19.53s on a formula simplification that was a NOOP. DAG size: 527 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:41:41,566 WARN L233 SmtUtils]: Spent 35.47s on a formula simplification that was a NOOP. DAG size: 543 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:42:15,185 WARN L233 SmtUtils]: Spent 33.61s on a formula simplification that was a NOOP. DAG size: 527 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:42:15,726 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:42:15,727 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-05 20:42:15,730 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:42:15,731 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2022-12-05 20:42:15,734 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:42:15,734 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:42:15,737 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:42:15,737 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:42:15,741 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:42:15,741 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2022-12-05 20:43:15,605 WARN L233 SmtUtils]: Spent 59.74s on a formula simplification. DAG size of input: 559 DAG size of output: 557 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:43:55,794 WARN L233 SmtUtils]: Spent 40.19s on a formula simplification that was a NOOP. DAG size: 557 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:44:50,127 WARN L233 SmtUtils]: Spent 54.33s on a formula simplification. DAG size of input: 559 DAG size of output: 557 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:45:16,944 WARN L233 SmtUtils]: Spent 26.81s on a formula simplification that was a NOOP. DAG size: 557 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:45:16,964 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:45:16,965 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:45:16,967 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:45:16,967 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:45:53,911 WARN L233 SmtUtils]: Spent 34.40s on a formula simplification that was a NOOP. DAG size: 585 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:46:59,714 WARN L233 SmtUtils]: Spent 1.10m on a formula simplification that was a NOOP. DAG size: 581 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:48:05,370 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 585 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:48:38,420 WARN L233 SmtUtils]: Spent 33.04s on a formula simplification that was a NOOP. DAG size: 581 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:48:38,724 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:48:38,724 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:48:38,726 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:48:38,727 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:48:49,556 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:48:49,556 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:48:49,557 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:48:49,558 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:48:59,488 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:48:59,489 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:48:59,491 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:48:59,493 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:49:04,733 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:49:04,734 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:49:23,699 INFO L203 LiptonReduction]: Total number of compositions: 787 [2022-12-05 20:49:23,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:49:23,711 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;@43c6a084, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:49:23,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-05 20:49:23,718 INFO L130 PetriNetUnfolder]: 7/14 cut-off events. [2022-12-05 20:49:23,718 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:49:23,718 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:23,718 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 20:49:23,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:23,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:23,722 INFO L85 PathProgramCache]: Analyzing trace with hash 3277335, now seen corresponding path program 1 times [2022-12-05 20:49:23,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:23,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512584042] [2022-12-05 20:49:23,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:23,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:24,049 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 20:49:24,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:24,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512584042] [2022-12-05 20:49:24,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512584042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:24,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:49:24,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:49:24,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516002684] [2022-12-05 20:49:24,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:24,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:49:24,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:24,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:49:24,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:49:24,076 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:24,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 93 transitions, 195 flow. Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 20:49:24,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:24,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:24,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:24,583 INFO L130 PetriNetUnfolder]: 1294/2264 cut-off events. [2022-12-05 20:49:24,583 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2022-12-05 20:49:24,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4595 conditions, 2264 events. 1294/2264 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 12584 event pairs, 1284 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 4196. Up to 2265 conditions per place. [2022-12-05 20:49:24,589 INFO L137 encePairwiseOnDemand]: 76/93 looper letters, 76 selfloop transitions, 0 changer transitions 0/76 dead transitions. [2022-12-05 20:49:24,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 76 transitions, 313 flow [2022-12-05 20:49:24,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:49:24,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:49:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 93 transitions. [2022-12-05 20:49:24,597 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 20:49:24,598 INFO L175 Difference]: Start difference. First operand has 77 places, 93 transitions, 195 flow. Second operand 2 states and 93 transitions. [2022-12-05 20:49:24,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 76 transitions, 313 flow [2022-12-05 20:49:24,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 76 transitions, 308 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:49:24,604 INFO L231 Difference]: Finished difference. Result has 71 places, 76 transitions, 156 flow [2022-12-05 20:49:24,605 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=156, PETRI_PLACES=71, PETRI_TRANSITIONS=76} [2022-12-05 20:49:24,609 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -6 predicate places. [2022-12-05 20:49:24,609 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 76 transitions, 156 flow [2022-12-05 20:49:24,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 20:49:24,609 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:24,609 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:49:24,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:49:24,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:24,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1179052874, now seen corresponding path program 1 times [2022-12-05 20:49:24,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:24,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173984398] [2022-12-05 20:49:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:24,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:25,327 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 20:49:25,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:25,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173984398] [2022-12-05 20:49:25,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173984398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:25,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:49:25,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:49:25,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638343108] [2022-12-05 20:49:25,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:25,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:49:25,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:25,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:49:25,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:49:25,331 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:25,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 76 transitions, 156 flow. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 20:49:25,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:25,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:25,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:26,258 INFO L130 PetriNetUnfolder]: 1986/3507 cut-off events. [2022-12-05 20:49:26,258 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-05 20:49:26,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7052 conditions, 3507 events. 1986/3507 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 22879 event pairs, 801 based on Foata normal form. 0/1679 useless extension candidates. Maximal degree in co-relation 7049. Up to 2113 conditions per place. [2022-12-05 20:49:26,265 INFO L137 encePairwiseOnDemand]: 88/93 looper letters, 92 selfloop transitions, 4 changer transitions 28/124 dead transitions. [2022-12-05 20:49:26,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 124 transitions, 503 flow [2022-12-05 20:49:26,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:49:26,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:49:26,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2022-12-05 20:49:26,266 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44802867383512546 [2022-12-05 20:49:26,266 INFO L175 Difference]: Start difference. First operand has 71 places, 76 transitions, 156 flow. Second operand 3 states and 125 transitions. [2022-12-05 20:49:26,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 124 transitions, 503 flow [2022-12-05 20:49:26,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 124 transitions, 503 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:49:26,269 INFO L231 Difference]: Finished difference. Result has 75 places, 79 transitions, 186 flow [2022-12-05 20:49:26,269 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=75, PETRI_TRANSITIONS=79} [2022-12-05 20:49:26,269 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -2 predicate places. [2022-12-05 20:49:26,269 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 79 transitions, 186 flow [2022-12-05 20:49:26,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 20:49:26,270 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:26,270 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:26,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:49:26,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:26,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash 2104069679, now seen corresponding path program 1 times [2022-12-05 20:49:26,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:26,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471592000] [2022-12-05 20:49:26,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:26,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:27,034 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 20:49:27,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:27,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471592000] [2022-12-05 20:49:27,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471592000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:27,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:49:27,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:49:27,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042653611] [2022-12-05 20:49:27,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:27,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:49:27,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:27,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:49:27,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:49:27,036 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:27,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 79 transitions, 186 flow. Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 20:49:27,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:27,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:27,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:28,483 INFO L130 PetriNetUnfolder]: 1877/3325 cut-off events. [2022-12-05 20:49:28,484 INFO L131 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2022-12-05 20:49:28,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7158 conditions, 3325 events. 1877/3325 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 22051 event pairs, 614 based on Foata normal form. 73/1705 useless extension candidates. Maximal degree in co-relation 7153. Up to 2477 conditions per place. [2022-12-05 20:49:28,490 INFO L137 encePairwiseOnDemand]: 78/93 looper letters, 69 selfloop transitions, 15 changer transitions 83/167 dead transitions. [2022-12-05 20:49:28,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 167 transitions, 711 flow [2022-12-05 20:49:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:49:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:49:28,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2022-12-05 20:49:28,492 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2974910394265233 [2022-12-05 20:49:28,492 INFO L175 Difference]: Start difference. First operand has 75 places, 79 transitions, 186 flow. Second operand 6 states and 166 transitions. [2022-12-05 20:49:28,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 167 transitions, 711 flow [2022-12-05 20:49:28,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 167 transitions, 701 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:49:28,495 INFO L231 Difference]: Finished difference. Result has 80 places, 54 transitions, 179 flow [2022-12-05 20:49:28,495 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=179, PETRI_PLACES=80, PETRI_TRANSITIONS=54} [2022-12-05 20:49:28,496 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2022-12-05 20:49:28,496 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 54 transitions, 179 flow [2022-12-05 20:49:28,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 20:49:28,496 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:28,496 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:28,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:49:28,496 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:28,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:28,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2102291190, now seen corresponding path program 1 times [2022-12-05 20:49:28,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:28,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736689981] [2022-12-05 20:49:28,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:28,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:28,881 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 20:49:28,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:28,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736689981] [2022-12-05 20:49:28,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736689981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:28,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:49:28,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:49:28,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459831626] [2022-12-05 20:49:28,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:28,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:49:28,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:28,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:49:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:49:28,886 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:28,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 54 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 20:49:28,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:28,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:28,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:29,186 INFO L130 PetriNetUnfolder]: 581/1058 cut-off events. [2022-12-05 20:49:29,186 INFO L131 PetriNetUnfolder]: For 438/438 co-relation queries the response was YES. [2022-12-05 20:49:29,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2524 conditions, 1058 events. 581/1058 cut-off events. For 438/438 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4845 event pairs, 532 based on Foata normal form. 1/772 useless extension candidates. Maximal degree in co-relation 2517. Up to 1058 conditions per place. [2022-12-05 20:49:29,190 INFO L137 encePairwiseOnDemand]: 89/93 looper letters, 53 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2022-12-05 20:49:29,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 55 transitions, 291 flow [2022-12-05 20:49:29,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:49:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:49:29,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2022-12-05 20:49:29,191 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.1863799283154122 [2022-12-05 20:49:29,191 INFO L175 Difference]: Start difference. First operand has 80 places, 54 transitions, 179 flow. Second operand 3 states and 52 transitions. [2022-12-05 20:49:29,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 55 transitions, 291 flow [2022-12-05 20:49:29,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 55 transitions, 272 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:49:29,193 INFO L231 Difference]: Finished difference. Result has 53 places, 55 transitions, 174 flow [2022-12-05 20:49:29,193 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=53, PETRI_TRANSITIONS=55} [2022-12-05 20:49:29,194 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -24 predicate places. [2022-12-05 20:49:29,194 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 55 transitions, 174 flow [2022-12-05 20:49:29,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 20:49:29,194 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:29,194 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:29,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:49:29,194 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:29,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash 552930953, now seen corresponding path program 1 times [2022-12-05 20:49:29,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:29,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803404915] [2022-12-05 20:49:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:29,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:29,765 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 20:49:29,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:29,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803404915] [2022-12-05 20:49:29,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803404915] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 20:49:29,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76089066] [2022-12-05 20:49:29,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:29,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:29,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:49:29,768 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 20:49:29,771 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 20:49:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:30,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-05 20:49:30,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 20:49:30,221 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 20:49:30,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 20:49:30,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76089066] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:30,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 20:49:30,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-12-05 20:49:30,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497926638] [2022-12-05 20:49:30,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:30,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:49:30,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:30,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:49:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:49:30,222 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:30,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 55 transitions, 174 flow. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 20:49:30,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:30,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:30,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:30,672 INFO L130 PetriNetUnfolder]: 677/1230 cut-off events. [2022-12-05 20:49:30,673 INFO L131 PetriNetUnfolder]: For 465/465 co-relation queries the response was YES. [2022-12-05 20:49:30,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2907 conditions, 1230 events. 677/1230 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 6235 event pairs, 224 based on Foata normal form. 0/931 useless extension candidates. Maximal degree in co-relation 2899. Up to 657 conditions per place. [2022-12-05 20:49:30,677 INFO L137 encePairwiseOnDemand]: 89/93 looper letters, 70 selfloop transitions, 5 changer transitions 0/75 dead transitions. [2022-12-05 20:49:30,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 75 transitions, 389 flow [2022-12-05 20:49:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:49:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:49:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2022-12-05 20:49:30,678 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.24731182795698925 [2022-12-05 20:49:30,678 INFO L175 Difference]: Start difference. First operand has 53 places, 55 transitions, 174 flow. Second operand 3 states and 69 transitions. [2022-12-05 20:49:30,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 75 transitions, 389 flow [2022-12-05 20:49:30,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 385 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-05 20:49:30,680 INFO L231 Difference]: Finished difference. Result has 55 places, 57 transitions, 207 flow [2022-12-05 20:49:30,680 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=55, PETRI_TRANSITIONS=57} [2022-12-05 20:49:30,682 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -22 predicate places. [2022-12-05 20:49:30,682 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 57 transitions, 207 flow [2022-12-05 20:49:30,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 20:49:30,682 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:30,682 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:30,691 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 20:49:30,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:30,889 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:30,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:30,889 INFO L85 PathProgramCache]: Analyzing trace with hash -369446633, now seen corresponding path program 1 times [2022-12-05 20:49:30,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:30,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471340450] [2022-12-05 20:49:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:30,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:31,330 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 20:49:31,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:31,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471340450] [2022-12-05 20:49:31,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471340450] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 20:49:31,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386100042] [2022-12-05 20:49:31,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:31,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:31,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:49:31,332 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 20:49:31,334 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 20:49:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:31,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-05 20:49:31,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 20:49:31,872 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-05 20:49:31,872 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 28 treesize of output 30 [2022-12-05 20:49:31,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 110 treesize of output 107 [2022-12-05 20:49:31,949 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 110 [2022-12-05 20:49:31,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 92 treesize of output 89 [2022-12-05 20:49:31,967 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 20:49:31,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 20:49:31,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386100042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:31,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 20:49:31,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2022-12-05 20:49:31,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344244289] [2022-12-05 20:49:31,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:31,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:49:31,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:31,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:49:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:49:31,970 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:31,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 57 transitions, 207 flow. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 20:49:31,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:31,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:31,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:32,624 INFO L130 PetriNetUnfolder]: 659/1198 cut-off events. [2022-12-05 20:49:32,624 INFO L131 PetriNetUnfolder]: For 710/710 co-relation queries the response was YES. [2022-12-05 20:49:32,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3000 conditions, 1198 events. 659/1198 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5987 event pairs, 133 based on Foata normal form. 14/933 useless extension candidates. Maximal degree in co-relation 2991. Up to 777 conditions per place. [2022-12-05 20:49:32,629 INFO L137 encePairwiseOnDemand]: 86/93 looper letters, 67 selfloop transitions, 14 changer transitions 1/82 dead transitions. [2022-12-05 20:49:32,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 82 transitions, 446 flow [2022-12-05 20:49:32,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:49:32,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:49:32,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 75 transitions. [2022-12-05 20:49:32,630 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.13440860215053763 [2022-12-05 20:49:32,630 INFO L175 Difference]: Start difference. First operand has 55 places, 57 transitions, 207 flow. Second operand 6 states and 75 transitions. [2022-12-05 20:49:32,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 82 transitions, 446 flow [2022-12-05 20:49:32,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 82 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:49:32,632 INFO L231 Difference]: Finished difference. Result has 58 places, 61 transitions, 250 flow [2022-12-05 20:49:32,632 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=250, PETRI_PLACES=58, PETRI_TRANSITIONS=61} [2022-12-05 20:49:32,633 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -19 predicate places. [2022-12-05 20:49:32,633 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 61 transitions, 250 flow [2022-12-05 20:49:32,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 20:49:32,633 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:32,633 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:32,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 20:49:32,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-05 20:49:32,841 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:32,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:32,841 INFO L85 PathProgramCache]: Analyzing trace with hash 764653713, now seen corresponding path program 1 times [2022-12-05 20:49:32,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:32,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897515719] [2022-12-05 20:49:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:32,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:33,476 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 20:49:33,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:33,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897515719] [2022-12-05 20:49:33,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897515719] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 20:49:33,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163644437] [2022-12-05 20:49:33,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:33,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:33,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:49:33,478 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 20:49:33,485 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 20:49:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:34,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-05 20:49:34,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 20:49:34,823 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 20:49:34,833 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 20:49:34,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 20:49:34,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163644437] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:34,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 20:49:34,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2022-12-05 20:49:34,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084264769] [2022-12-05 20:49:34,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:34,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:49:34,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:34,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:49:34,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:49:34,835 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:34,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 61 transitions, 250 flow. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 20:49:34,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:34,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:34,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:36,180 INFO L130 PetriNetUnfolder]: 644/1183 cut-off events. [2022-12-05 20:49:36,180 INFO L131 PetriNetUnfolder]: For 912/912 co-relation queries the response was YES. [2022-12-05 20:49:36,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3049 conditions, 1183 events. 644/1183 cut-off events. For 912/912 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5901 event pairs, 89 based on Foata normal form. 0/926 useless extension candidates. Maximal degree in co-relation 3040. Up to 410 conditions per place. [2022-12-05 20:49:36,183 INFO L137 encePairwiseOnDemand]: 86/93 looper letters, 53 selfloop transitions, 16 changer transitions 40/109 dead transitions. [2022-12-05 20:49:36,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 109 transitions, 622 flow [2022-12-05 20:49:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:49:36,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:49:36,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 101 transitions. [2022-12-05 20:49:36,184 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.18100358422939067 [2022-12-05 20:49:36,184 INFO L175 Difference]: Start difference. First operand has 58 places, 61 transitions, 250 flow. Second operand 6 states and 101 transitions. [2022-12-05 20:49:36,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 109 transitions, 622 flow [2022-12-05 20:49:36,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 109 transitions, 617 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-05 20:49:36,187 INFO L231 Difference]: Finished difference. Result has 63 places, 60 transitions, 275 flow [2022-12-05 20:49:36,187 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=63, PETRI_TRANSITIONS=60} [2022-12-05 20:49:36,187 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -14 predicate places. [2022-12-05 20:49:36,187 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 60 transitions, 275 flow [2022-12-05 20:49:36,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 20:49:36,188 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:36,188 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:36,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-05 20:49:36,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:36,397 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:36,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:36,397 INFO L85 PathProgramCache]: Analyzing trace with hash 562784655, now seen corresponding path program 1 times [2022-12-05 20:49:36,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:36,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758383478] [2022-12-05 20:49:36,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:36,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:38,335 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 20:49:38,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:38,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758383478] [2022-12-05 20:49:38,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758383478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:38,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:49:38,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:49:38,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779372182] [2022-12-05 20:49:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:38,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:49:38,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:38,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:49:38,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:49:38,337 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:38,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 60 transitions, 275 flow. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 20:49:38,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:38,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:38,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:38,960 INFO L130 PetriNetUnfolder]: 563/1062 cut-off events. [2022-12-05 20:49:38,960 INFO L131 PetriNetUnfolder]: For 1185/1185 co-relation queries the response was YES. [2022-12-05 20:49:38,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2896 conditions, 1062 events. 563/1062 cut-off events. For 1185/1185 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5331 event pairs, 225 based on Foata normal form. 4/867 useless extension candidates. Maximal degree in co-relation 2886. Up to 646 conditions per place. [2022-12-05 20:49:38,962 INFO L137 encePairwiseOnDemand]: 88/93 looper letters, 57 selfloop transitions, 6 changer transitions 23/86 dead transitions. [2022-12-05 20:49:38,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 86 transitions, 524 flow [2022-12-05 20:49:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:49:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:49:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2022-12-05 20:49:38,964 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.16559139784946236 [2022-12-05 20:49:38,964 INFO L175 Difference]: Start difference. First operand has 63 places, 60 transitions, 275 flow. Second operand 5 states and 77 transitions. [2022-12-05 20:49:38,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 86 transitions, 524 flow [2022-12-05 20:49:38,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 86 transitions, 493 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-05 20:49:38,966 INFO L231 Difference]: Finished difference. Result has 63 places, 53 transitions, 209 flow [2022-12-05 20:49:38,967 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2022-12-05 20:49:38,967 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -14 predicate places. [2022-12-05 20:49:38,967 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 209 flow [2022-12-05 20:49:38,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 20:49:38,967 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:38,967 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:38,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:49:38,968 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:38,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:38,968 INFO L85 PathProgramCache]: Analyzing trace with hash 393282885, now seen corresponding path program 1 times [2022-12-05 20:49:38,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:38,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31045473] [2022-12-05 20:49:38,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:38,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:39,590 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 20:49:39,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:39,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31045473] [2022-12-05 20:49:39,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31045473] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 20:49:39,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748482151] [2022-12-05 20:49:39,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:39,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:39,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:49:39,592 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 20:49:39,594 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 20:49:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:40,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 56 conjunts are in the unsatisfiable core [2022-12-05 20:49:40,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 20:49:40,515 INFO L321 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2022-12-05 20:49:40,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 62 [2022-12-05 20:49:40,638 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 20:49:40,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 110 treesize of output 107 [2022-12-05 20:49:40,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 101 treesize of output 98 [2022-12-05 20:49:40,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2022-12-05 20:49:40,727 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 20:49:40,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 20:49:40,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748482151] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:40,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 20:49:40,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 9 [2022-12-05 20:49:40,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756498090] [2022-12-05 20:49:40,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:40,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:49:40,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:40,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:49:40,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-05 20:49:40,729 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:40,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 209 flow. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20:49:40,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:40,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:40,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:42,235 INFO L130 PetriNetUnfolder]: 417/822 cut-off events. [2022-12-05 20:49:42,236 INFO L131 PetriNetUnfolder]: For 538/538 co-relation queries the response was YES. [2022-12-05 20:49:42,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2114 conditions, 822 events. 417/822 cut-off events. For 538/538 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3889 event pairs, 41 based on Foata normal form. 14/679 useless extension candidates. Maximal degree in co-relation 2103. Up to 350 conditions per place. [2022-12-05 20:49:42,238 INFO L137 encePairwiseOnDemand]: 84/93 looper letters, 48 selfloop transitions, 9 changer transitions 40/97 dead transitions. [2022-12-05 20:49:42,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 97 transitions, 522 flow [2022-12-05 20:49:42,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:49:42,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:49:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 93 transitions. [2022-12-05 20:49:42,239 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.125 [2022-12-05 20:49:42,239 INFO L175 Difference]: Start difference. First operand has 63 places, 53 transitions, 209 flow. Second operand 8 states and 93 transitions. [2022-12-05 20:49:42,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 97 transitions, 522 flow [2022-12-05 20:49:42,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 97 transitions, 485 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-12-05 20:49:42,241 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 197 flow [2022-12-05 20:49:42,241 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=197, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2022-12-05 20:49:42,241 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -13 predicate places. [2022-12-05 20:49:42,241 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 197 flow [2022-12-05 20:49:42,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20:49:42,242 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:42,242 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:42,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-05 20:49:42,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:42,451 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:42,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:42,451 INFO L85 PathProgramCache]: Analyzing trace with hash 804342397, now seen corresponding path program 2 times [2022-12-05 20:49:42,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:42,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562122992] [2022-12-05 20:49:42,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:42,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:43,192 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 20:49:43,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:43,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562122992] [2022-12-05 20:49:43,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562122992] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 20:49:43,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564108650] [2022-12-05 20:49:43,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 20:49:43,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:43,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:49:43,193 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 20:49:43,195 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 20:49:43,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 20:49:43,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 20:49:43,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-05 20:49:43,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 20:49:43,953 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-05 20:49:43,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-05 20:49:44,055 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 20:49:44,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 110 treesize of output 107 [2022-12-05 20:49:44,097 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 110 [2022-12-05 20:49:44,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 92 treesize of output 89 [2022-12-05 20:49:44,120 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 20:49:44,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 20:49:44,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564108650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:44,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 20:49:44,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 9 [2022-12-05 20:49:44,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044399577] [2022-12-05 20:49:44,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:44,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:49:44,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:44,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:49:44,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-05 20:49:44,121 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:44,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 197 flow. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20:49:44,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:44,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:44,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:45,101 INFO L130 PetriNetUnfolder]: 420/839 cut-off events. [2022-12-05 20:49:45,102 INFO L131 PetriNetUnfolder]: For 599/599 co-relation queries the response was YES. [2022-12-05 20:49:45,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 839 events. 420/839 cut-off events. For 599/599 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4052 event pairs, 47 based on Foata normal form. 14/696 useless extension candidates. Maximal degree in co-relation 2159. Up to 325 conditions per place. [2022-12-05 20:49:45,104 INFO L137 encePairwiseOnDemand]: 84/93 looper letters, 55 selfloop transitions, 8 changer transitions 42/105 dead transitions. [2022-12-05 20:49:45,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 105 transitions, 587 flow [2022-12-05 20:49:45,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 20:49:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 20:49:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 101 transitions. [2022-12-05 20:49:45,105 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.135752688172043 [2022-12-05 20:49:45,105 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 197 flow. Second operand 8 states and 101 transitions. [2022-12-05 20:49:45,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 105 transitions, 587 flow [2022-12-05 20:49:45,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 105 transitions, 539 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-12-05 20:49:45,107 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 227 flow [2022-12-05 20:49:45,107 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=227, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2022-12-05 20:49:45,107 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2022-12-05 20:49:45,108 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 227 flow [2022-12-05 20:49:45,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20:49:45,108 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:45,108 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:45,117 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 20:49:45,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-05 20:49:45,308 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:45,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:45,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1074859947, now seen corresponding path program 2 times [2022-12-05 20:49:45,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:45,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794010598] [2022-12-05 20:49:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:45,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:47,178 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 20:49:47,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:47,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794010598] [2022-12-05 20:49:47,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794010598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:47,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:49:47,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 20:49:47,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686875607] [2022-12-05 20:49:47,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:47,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:49:47,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:47,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:49:47,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-05 20:49:47,179 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:47,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 227 flow. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20:49:47,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:47,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:47,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:47,803 INFO L130 PetriNetUnfolder]: 361/724 cut-off events. [2022-12-05 20:49:47,803 INFO L131 PetriNetUnfolder]: For 731/731 co-relation queries the response was YES. [2022-12-05 20:49:47,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2031 conditions, 724 events. 361/724 cut-off events. For 731/731 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3313 event pairs, 259 based on Foata normal form. 4/589 useless extension candidates. Maximal degree in co-relation 2017. Up to 616 conditions per place. [2022-12-05 20:49:47,805 INFO L137 encePairwiseOnDemand]: 82/93 looper letters, 37 selfloop transitions, 10 changer transitions 23/70 dead transitions. [2022-12-05 20:49:47,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 70 transitions, 422 flow [2022-12-05 20:49:47,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:49:47,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:49:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 67 transitions. [2022-12-05 20:49:47,807 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.12007168458781362 [2022-12-05 20:49:47,807 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 227 flow. Second operand 6 states and 67 transitions. [2022-12-05 20:49:47,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 70 transitions, 422 flow [2022-12-05 20:49:47,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 409 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-05 20:49:47,809 INFO L231 Difference]: Finished difference. Result has 67 places, 45 transitions, 165 flow [2022-12-05 20:49:47,809 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=165, PETRI_PLACES=67, PETRI_TRANSITIONS=45} [2022-12-05 20:49:47,810 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -10 predicate places. [2022-12-05 20:49:47,810 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 45 transitions, 165 flow [2022-12-05 20:49:47,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20:49:47,810 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:49:47,810 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:47,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 20:49:47,810 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-05 20:49:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:49:47,811 INFO L85 PathProgramCache]: Analyzing trace with hash 391408935, now seen corresponding path program 3 times [2022-12-05 20:49:47,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:49:47,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456150788] [2022-12-05 20:49:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:49:47,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:49:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:49:48,508 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 20:49:48,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:49:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456150788] [2022-12-05 20:49:48,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456150788] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 20:49:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298667046] [2022-12-05 20:49:48,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 20:49:48,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:48,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:49:48,509 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 20:49:48,512 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 20:49:49,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-05 20:49:49,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 20:49:49,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-05 20:49:49,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 20:49:49,364 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-05 20:49:49,365 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 28 treesize of output 30 [2022-12-05 20:49:49,498 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 20:49:49,526 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2022-12-05 20:49:49,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 101 treesize of output 98 [2022-12-05 20:49:49,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 92 treesize of output 89 [2022-12-05 20:49:49,566 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 20:49:49,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 20:49:49,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298667046] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:49:49,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 20:49:49,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 9 [2022-12-05 20:49:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474424198] [2022-12-05 20:49:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:49:49,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 20:49:49,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:49:49,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 20:49:49,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-05 20:49:49,568 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 93 [2022-12-05 20:49:49,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 45 transitions, 165 flow. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20:49:49,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:49:49,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 93 [2022-12-05 20:49:49,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:49:50,292 INFO L130 PetriNetUnfolder]: 39/100 cut-off events. [2022-12-05 20:49:50,293 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2022-12-05 20:49:50,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 100 events. 39/100 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 187 event pairs, 6 based on Foata normal form. 14/100 useless extension candidates. Maximal degree in co-relation 299. Up to 38 conditions per place. [2022-12-05 20:49:50,293 INFO L137 encePairwiseOnDemand]: 85/93 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2022-12-05 20:49:50,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 50 transitions, 281 flow [2022-12-05 20:49:50,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:49:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:49:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 50 transitions. [2022-12-05 20:49:50,294 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.07680491551459294 [2022-12-05 20:49:50,294 INFO L175 Difference]: Start difference. First operand has 67 places, 45 transitions, 165 flow. Second operand 7 states and 50 transitions. [2022-12-05 20:49:50,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 50 transitions, 281 flow [2022-12-05 20:49:50,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 227 flow, removed 9 selfloop flow, removed 14 redundant places. [2022-12-05 20:49:50,295 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2022-12-05 20:49:50,295 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2022-12-05 20:49:50,297 INFO L294 CegarLoopForPetriNet]: 77 programPoint places, -23 predicate places. [2022-12-05 20:49:50,297 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2022-12-05 20:49:50,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 20:49:50,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2022-12-05 20:49:50,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2022-12-05 20:49:50,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2022-12-05 20:49:50,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2022-12-05 20:49:50,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2022-12-05 20:49:50,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2022-12-05 20:49:50,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2022-12-05 20:49:50,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2022-12-05 20:49:50,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2022-12-05 20:49:50,313 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 20:49:50,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 20:49:50,515 INFO L458 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:49:50,518 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:49:50,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:49:50,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:49:50 BasicIcfg [2022-12-05 20:49:50,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:49:50,521 INFO L158 Benchmark]: Toolchain (without parser) took 758658.39ms. Allocated memory was 178.3MB in the beginning and 867.2MB in the end (delta: 688.9MB). Free memory was 144.1MB in the beginning and 570.8MB in the end (delta: -426.7MB). Peak memory consumption was 263.6MB. Max. memory is 8.0GB. [2022-12-05 20:49:50,521 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:49:50,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4053.67ms. Allocated memory was 178.3MB in the beginning and 340.8MB in the end (delta: 162.5MB). Free memory was 143.9MB in the beginning and 276.7MB in the end (delta: -132.8MB). Peak memory consumption was 125.2MB. Max. memory is 8.0GB. [2022-12-05 20:49:50,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 140.77ms. Allocated memory is still 340.8MB. Free memory was 276.7MB in the beginning and 265.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-05 20:49:50,522 INFO L158 Benchmark]: Boogie Preprocessor took 84.38ms. Allocated memory is still 340.8MB. Free memory was 265.1MB in the beginning and 259.4MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-05 20:49:50,522 INFO L158 Benchmark]: RCFGBuilder took 1035.93ms. Allocated memory is still 340.8MB. Free memory was 259.4MB in the beginning and 191.2MB in the end (delta: 68.2MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2022-12-05 20:49:50,522 INFO L158 Benchmark]: TraceAbstraction took 753338.43ms. Allocated memory was 340.8MB in the beginning and 867.2MB in the end (delta: 526.4MB). Free memory was 190.7MB in the beginning and 570.8MB in the end (delta: -380.1MB). Peak memory consumption was 146.3MB. Max. memory is 8.0GB. [2022-12-05 20:49:50,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 178.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4053.67ms. Allocated memory was 178.3MB in the beginning and 340.8MB in the end (delta: 162.5MB). Free memory was 143.9MB in the beginning and 276.7MB in the end (delta: -132.8MB). Peak memory consumption was 125.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 140.77ms. Allocated memory is still 340.8MB. Free memory was 276.7MB in the beginning and 265.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.38ms. Allocated memory is still 340.8MB. Free memory was 265.1MB in the beginning and 259.4MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1035.93ms. Allocated memory is still 340.8MB. Free memory was 259.4MB in the beginning and 191.2MB in the end (delta: 68.2MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * TraceAbstraction took 753338.43ms. Allocated memory was 340.8MB in the beginning and 867.2MB in the end (delta: 526.4MB). Free memory was 190.7MB in the beginning and 570.8MB in the end (delta: -380.1MB). Peak memory consumption was 146.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 726.0s, 784 PlacesBefore, 77 PlacesAfterwards, 847 TransitionsBefore, 93 TransitionsAfterwards, 25632 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 534 TrivialYvCompositions, 208 ConcurrentYvCompositions, 37 ChoiceCompositions, 787 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24088, independent: 23916, independent conditional: 23916, independent unconditional: 0, dependent: 162, dependent conditional: 162, dependent unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24088, independent: 23916, independent conditional: 0, independent unconditional: 23916, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24088, independent: 23916, independent conditional: 0, independent unconditional: 23916, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24088, independent: 23916, independent conditional: 0, independent unconditional: 23916, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17277, independent: 17220, independent conditional: 0, independent unconditional: 17220, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17277, independent: 17187, independent conditional: 0, independent unconditional: 17187, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 90, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4864, independent: 52, independent conditional: 0, independent unconditional: 52, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 4570, unknown conditional: 0, unknown unconditional: 4570] ], Cache Queries: [ total: 24088, independent: 6696, independent conditional: 0, independent unconditional: 6696, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 17285, unknown conditional: 0, unknown unconditional: 17285] , Statistics on independence cache: Total cache size (in pairs): 47499, Positive cache size: 47444, Positive conditional cache size: 0, Positive unconditional cache size: 47444, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: -1 - 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 - 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, 1009 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 753.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 726.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 945 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 945 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2496 IncrementalHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 0 mSDtfsCounter, 2496 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=7, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 5.0s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 225 NumberOfCodeBlocks, 223 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 1574 SizeOfPredicates, 202 NumberOfNonLiveVariables, 6810 ConjunctsInSsa, 211 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 8/14 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:49:50,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...