/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_generic_nvram_nvram_unlocked_ioctl_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:29:33,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:29:33,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:29:33,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:29:33,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:29:33,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:29:33,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:29:33,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:29:33,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:29:33,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:29:33,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:29:33,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:29:33,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:29:33,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:29:33,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:29:33,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:29:33,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:29:33,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:29:33,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:29:33,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:29:33,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:29:33,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:29:33,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:29:33,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:29:33,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:29:33,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:29:33,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:29:33,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:29:33,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:29:33,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:29:33,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:29:33,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:29:33,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:29:33,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:29:33,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:29:33,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:29:33,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:29:33,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:29:33,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:29:33,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:29:33,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:29:33,419 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 20:29:33,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:29:33,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:29:33,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:29:33,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:29:33,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:29:33,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:29:33,446 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:29:33,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:29:33,446 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:29:33,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:29:33,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:29:33,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:29:33,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:29:33,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:29:33,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:29:33,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:29:33,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:29:33,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:29:33,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:29:33,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:29:33,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:29:33,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:29:33,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:29:33,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:29:33,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:29:33,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:29:33,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:29:33,740 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:29:33,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-05 20:29:34,666 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:29:35,084 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:29:35,084 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-05 20:29:35,114 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b8c5fc17/92ca7ce7c4ec41fd807123280fc6f6e5/FLAG5ddc402d9 [2022-12-05 20:29:35,125 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b8c5fc17/92ca7ce7c4ec41fd807123280fc6f6e5 [2022-12-05 20:29:35,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:29:35,127 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:29:35,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:29:35,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:29:35,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:29:35,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:29:35" (1/1) ... [2022-12-05 20:29:35,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59eb6839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:35, skipping insertion in model container [2022-12-05 20:29:35,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:29:35" (1/1) ... [2022-12-05 20:29:35,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:29:35,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:29:35,492 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_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-05 20:29:35,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:35,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:35,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:35,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:35,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:35,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:36,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:36,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:36,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:36,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:36,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:36,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:36,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:36,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:36,528 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:29:36,533 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:36,538 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:36,550 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:36,712 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:36,718 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:36,821 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:29:37,006 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:37,012 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:37,066 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:29:37,071 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:29:37,262 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:29:37,264 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:29:37,266 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:29:37,325 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:29:37,325 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:37,327 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:29:37,327 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:37,430 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:29:37,464 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:29:37,610 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:29:37,615 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:29:37,741 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:29:37,856 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:29:37,857 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:29:37,857 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:29:39,199 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:29:39,200 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:39,208 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:39,213 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:39,216 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:39,975 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 20:29:39,981 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 20:29:39,988 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 20:29:40,001 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 20:29:40,002 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 20:29:40,008 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 20:29:40,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:29:40,060 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:29:40,071 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_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-05 20:29:40,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:29:40,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:29:40,096 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-05 20:29:40,097 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:40,131 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:40,132 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-05 20:29:40,135 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:40,136 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-05 20:29:40,137 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-05 20:29:40,148 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:40,150 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-05 20:29:40,153 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-05 20:29:40,154 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-05 20:29:40,161 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-05 20:29:40,161 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-05 20:29:40,161 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-05 20:29:40,166 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-05 20:29:40,166 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:40,166 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-05 20:29:40,167 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-05 20:29:40,179 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-05 20:29:40,182 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-05 20:29:40,187 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-05 20:29:40,188 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-05 20:29:40,191 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-05 20:29:40,195 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-05 20:29:40,196 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-05 20:29:40,196 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-05 20:29:40,264 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-05 20:29:40,264 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:40,266 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:40,269 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:40,271 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-05 20:29:40,303 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-05 20:29:40,304 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-05 20:29:40,305 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-05 20:29:40,307 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-05 20:29:40,307 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-05 20:29:40,308 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-05 20:29:40,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:29:40,776 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:29:40,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40 WrapperNode [2022-12-05 20:29:40,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:29:40,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:29:40,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:29:40,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:29:40,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,898 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-05 20:29:40,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:29:40,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:29:40,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:29:40,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:29:40,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,936 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:29:40,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:29:40,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:29:40,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:29:40,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (1/1) ... [2022-12-05 20:29:40,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:29:40,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:29:40,982 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 20:29:41,000 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 20:29:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:29:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 20:29:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-05 20:29:41,010 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-05 20:29:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:29:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:29:41,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-05 20:29:41,011 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-05 20:29:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:29:41,012 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 20:29:41,366 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:29:41,368 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:29:41,724 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:29:41,755 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:29:41,755 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-05 20:29:41,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:29:41 BoogieIcfgContainer [2022-12-05 20:29:41,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:29:41,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:29:41,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:29:41,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:29:41,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:29:35" (1/3) ... [2022-12-05 20:29:41,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ad0594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:29:41, skipping insertion in model container [2022-12-05 20:29:41,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:29:40" (2/3) ... [2022-12-05 20:29:41,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ad0594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:29:41, skipping insertion in model container [2022-12-05 20:29:41,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:29:41" (3/3) ... [2022-12-05 20:29:41,766 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-05 20:29:41,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:29:41,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:29:41,779 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:29:41,869 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:29:41,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 331 transitions, 678 flow [2022-12-05 20:29:42,014 INFO L130 PetriNetUnfolder]: 11/329 cut-off events. [2022-12-05 20:29:42,015 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:29:42,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 329 events. 11/329 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 310 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-05 20:29:42,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 331 transitions, 678 flow [2022-12-05 20:29:42,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 321 transitions, 651 flow [2022-12-05 20:29:42,032 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:29:42,049 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 317 places, 321 transitions, 651 flow [2022-12-05 20:29:42,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 321 transitions, 651 flow [2022-12-05 20:29:42,128 INFO L130 PetriNetUnfolder]: 11/321 cut-off events. [2022-12-05 20:29:42,129 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:29:42,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 321 events. 11/321 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 291 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-05 20:29:42,140 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 317 places, 321 transitions, 651 flow [2022-12-05 20:29:42,140 INFO L188 LiptonReduction]: Number of co-enabled transitions 9378 [2022-12-05 20:29:42,394 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:42,395 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:44,184 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:44,185 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:44,187 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:44,187 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:45,048 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:45,049 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:45,050 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:45,051 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:46,932 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:46,932 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:47,147 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:47,148 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2022-12-05 20:29:48,469 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,469 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,471 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,471 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,730 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,731 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:48,733 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:48,734 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,444 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,444 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:49,446 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:49,446 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,486 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,486 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,487 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,488 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:50,545 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,545 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2022-12-05 20:29:50,553 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,554 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2022-12-05 20:29:50,560 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,560 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-05 20:29:50,564 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:50,565 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2022-12-05 20:29:53,258 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:53,259 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-05 20:29:53,264 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:53,265 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-05 20:29:53,270 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:53,271 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2022-12-05 20:29:53,276 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:53,277 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2022-12-05 20:29:53,288 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:53,289 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2022-12-05 20:29:59,316 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,317 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:59,322 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,323 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:59,401 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,402 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:29:59,403 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:29:59,403 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:05,327 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:05,327 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:05,329 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:05,329 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:12,232 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:12,232 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:12,233 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:12,235 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:21,069 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:21,070 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:21,071 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:30:21,071 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:30:39,348 WARN L233 SmtUtils]: Spent 13.86s on a formula simplification that was a NOOP. DAG size: 401 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:30:47,300 WARN L233 SmtUtils]: Spent 7.93s on a formula simplification that was a NOOP. DAG size: 337 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:30:58,573 WARN L233 SmtUtils]: Spent 11.27s on a formula simplification that was a NOOP. DAG size: 401 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:09,495 WARN L233 SmtUtils]: Spent 10.91s on a formula simplification that was a NOOP. DAG size: 337 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:09,582 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:09,586 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2022-12-05 20:31:09,589 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:09,590 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2022-12-05 20:31:09,593 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:09,593 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2022-12-05 20:31:09,597 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:09,597 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 354 [2022-12-05 20:31:09,602 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:09,603 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2022-12-05 20:31:09,605 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:31:09,607 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2022-12-05 20:31:18,487 WARN L233 SmtUtils]: Spent 8.83s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:27,304 WARN L233 SmtUtils]: Spent 8.82s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:31:44,491 WARN L233 SmtUtils]: Spent 17.18s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:32:01,257 WARN L233 SmtUtils]: Spent 16.76s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:32:02,271 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:32:02,271 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:32:02,273 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:32:02,274 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:32:02,278 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:32:02,278 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:32:02,280 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:32:02,280 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:33:33,726 WARN L233 SmtUtils]: Spent 1.52m on a formula simplification. DAG size of input: 517 DAG size of output: 513 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:34:22,526 WARN L233 SmtUtils]: Spent 48.79s on a formula simplification that was a NOOP. DAG size: 501 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:35:58,883 WARN L233 SmtUtils]: Spent 1.61m on a formula simplification. DAG size of input: 529 DAG size of output: 523 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:36:58,190 WARN L233 SmtUtils]: Spent 59.30s on a formula simplification that was a NOOP. DAG size: 510 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-05 20:36:58,217 INFO L203 LiptonReduction]: Total number of compositions: 303 [2022-12-05 20:36:58,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:36:58,233 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;@704bf384, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:36:58,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 20:36:58,245 INFO L130 PetriNetUnfolder]: 3/17 cut-off events. [2022-12-05 20:36:58,245 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:36:58,245 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:58,246 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:36:58,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:36:58,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:58,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1429647907, now seen corresponding path program 1 times [2022-12-05 20:36:58,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:58,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085925011] [2022-12-05 20:36:58,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:58,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:59,061 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 20:36:59,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:59,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085925011] [2022-12-05 20:36:59,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085925011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:59,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:59,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:36:59,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546428493] [2022-12-05 20:36:59,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:59,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:36:59,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:59,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:36:59,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:36:59,085 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 20 [2022-12-05 20:36:59,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 49 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 20:36:59,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:59,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 20 [2022-12-05 20:36:59,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:36:59,332 INFO L130 PetriNetUnfolder]: 177/312 cut-off events. [2022-12-05 20:36:59,332 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-05 20:36:59,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 312 events. 177/312 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1141 event pairs, 83 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 548. Up to 240 conditions per place. [2022-12-05 20:36:59,334 INFO L137 encePairwiseOnDemand]: 12/20 looper letters, 16 selfloop transitions, 6 changer transitions 9/31 dead transitions. [2022-12-05 20:36:59,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 31 transitions, 139 flow [2022-12-05 20:36:59,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:36:59,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:36:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-12-05 20:36:59,341 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2022-12-05 20:36:59,342 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 49 flow. Second operand 3 states and 32 transitions. [2022-12-05 20:36:59,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 31 transitions, 139 flow [2022-12-05 20:36:59,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 31 transitions, 131 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:36:59,345 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 73 flow [2022-12-05 20:36:59,346 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2022-12-05 20:36:59,348 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2022-12-05 20:36:59,348 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 73 flow [2022-12-05 20:36:59,349 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 20:36:59,349 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:36:59,349 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:36:59,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:36:59,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:36:59,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:36:59,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1369411762, now seen corresponding path program 1 times [2022-12-05 20:36:59,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:36:59,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410409506] [2022-12-05 20:36:59,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:36:59,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:36:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:36:59,862 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 20:36:59,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:36:59,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410409506] [2022-12-05 20:36:59,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410409506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:36:59,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:36:59,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:36:59,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760996335] [2022-12-05 20:36:59,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:36:59,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:36:59,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:36:59,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:36:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:36:59,864 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 20 [2022-12-05 20:36:59,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 73 flow. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 20:36:59,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:36:59,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 20 [2022-12-05 20:36:59,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:37:00,165 INFO L130 PetriNetUnfolder]: 85/163 cut-off events. [2022-12-05 20:37:00,165 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-05 20:37:00,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 163 events. 85/163 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 620 event pairs, 6 based on Foata normal form. 5/146 useless extension candidates. Maximal degree in co-relation 340. Up to 114 conditions per place. [2022-12-05 20:37:00,166 INFO L137 encePairwiseOnDemand]: 12/20 looper letters, 17 selfloop transitions, 9 changer transitions 7/33 dead transitions. [2022-12-05 20:37:00,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 33 transitions, 183 flow [2022-12-05 20:37:00,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:37:00,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:37:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2022-12-05 20:37:00,169 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32 [2022-12-05 20:37:00,169 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 73 flow. Second operand 5 states and 32 transitions. [2022-12-05 20:37:00,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 33 transitions, 183 flow [2022-12-05 20:37:00,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 33 transitions, 177 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:37:00,171 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 98 flow [2022-12-05 20:37:00,171 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2022-12-05 20:37:00,172 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2022-12-05 20:37:00,172 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 98 flow [2022-12-05 20:37:00,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 20:37:00,172 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:37:00,172 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:37:00,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:37:00,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:37:00,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:37:00,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1659951107, now seen corresponding path program 1 times [2022-12-05 20:37:00,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:37:00,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593990658] [2022-12-05 20:37:00,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:37:00,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:37:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:37:00,721 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 20:37:00,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:37:00,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593990658] [2022-12-05 20:37:00,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593990658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:37:00,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:37:00,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:37:00,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047383115] [2022-12-05 20:37:00,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:37:00,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:37:00,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:37:00,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:37:00,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:37:00,728 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 20 [2022-12-05 20:37:00,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 98 flow. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 20:37:00,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:37:00,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 20 [2022-12-05 20:37:00,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:37:00,983 INFO L130 PetriNetUnfolder]: 62/130 cut-off events. [2022-12-05 20:37:00,984 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-12-05 20:37:00,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 130 events. 62/130 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 450 event pairs, 15 based on Foata normal form. 8/120 useless extension candidates. Maximal degree in co-relation 240. Up to 85 conditions per place. [2022-12-05 20:37:00,984 INFO L137 encePairwiseOnDemand]: 15/20 looper letters, 10 selfloop transitions, 4 changer transitions 16/30 dead transitions. [2022-12-05 20:37:00,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 30 transitions, 196 flow [2022-12-05 20:37:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:37:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:37:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2022-12-05 20:37:00,985 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.28 [2022-12-05 20:37:00,985 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 98 flow. Second operand 5 states and 28 transitions. [2022-12-05 20:37:00,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 30 transitions, 196 flow [2022-12-05 20:37:00,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 30 transitions, 185 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:37:00,986 INFO L231 Difference]: Finished difference. Result has 26 places, 14 transitions, 65 flow [2022-12-05 20:37:00,986 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=26, PETRI_TRANSITIONS=14} [2022-12-05 20:37:00,987 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2022-12-05 20:37:00,987 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 14 transitions, 65 flow [2022-12-05 20:37:00,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 20:37:00,987 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:37:00,987 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:37:00,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:37:00,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:37:00,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:37:00,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1744991171, now seen corresponding path program 2 times [2022-12-05 20:37:00,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:37:00,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133678172] [2022-12-05 20:37:00,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:37:00,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:37:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:37:07,956 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 20:37:07,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:37:07,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133678172] [2022-12-05 20:37:07,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133678172] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:37:07,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:37:07,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:37:07,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275297009] [2022-12-05 20:37:07,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:37:07,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 20:37:07,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:37:07,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 20:37:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-05 20:37:07,959 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 20 [2022-12-05 20:37:07,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 14 transitions, 65 flow. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 20:37:07,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:37:07,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 20 [2022-12-05 20:37:07,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:37:08,196 INFO L130 PetriNetUnfolder]: 5/21 cut-off events. [2022-12-05 20:37:08,196 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-05 20:37:08,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 21 events. 5/21 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 26 event pairs, 4 based on Foata normal form. 8/25 useless extension candidates. Maximal degree in co-relation 47. Up to 16 conditions per place. [2022-12-05 20:37:08,196 INFO L137 encePairwiseOnDemand]: 16/20 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2022-12-05 20:37:08,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 13 transitions, 83 flow [2022-12-05 20:37:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:37:08,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:37:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-12-05 20:37:08,197 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.14 [2022-12-05 20:37:08,197 INFO L175 Difference]: Start difference. First operand has 26 places, 14 transitions, 65 flow. Second operand 5 states and 14 transitions. [2022-12-05 20:37:08,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 13 transitions, 83 flow [2022-12-05 20:37:08,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 55 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-12-05 20:37:08,198 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2022-12-05 20:37:08,198 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2022-12-05 20:37:08,198 INFO L294 CegarLoopForPetriNet]: 24 programPoint places, -4 predicate places. [2022-12-05 20:37:08,198 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2022-12-05 20:37:08,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 20:37:08,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 20:37:08,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 20:37:08,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 20:37:08,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-05 20:37:08,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:37:08,201 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-05 20:37:08,206 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:37:08,206 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:37:08,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:37:08 BasicIcfg [2022-12-05 20:37:08,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:37:08,214 INFO L158 Benchmark]: Toolchain (without parser) took 453085.94ms. Allocated memory was 202.4MB in the beginning and 630.2MB in the end (delta: 427.8MB). Free memory was 166.8MB in the beginning and 440.2MB in the end (delta: -273.3MB). Peak memory consumption was 155.5MB. Max. memory is 8.0GB. [2022-12-05 20:37:08,214 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory was 178.8MB in the beginning and 178.7MB in the end (delta: 94.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:37:08,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5649.02ms. Allocated memory was 202.4MB in the beginning and 263.2MB in the end (delta: 60.8MB). Free memory was 166.8MB in the beginning and 125.6MB in the end (delta: 41.2MB). Peak memory consumption was 144.5MB. Max. memory is 8.0GB. [2022-12-05 20:37:08,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.45ms. Allocated memory is still 263.2MB. Free memory was 125.6MB in the beginning and 116.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-12-05 20:37:08,216 INFO L158 Benchmark]: Boogie Preprocessor took 58.33ms. Allocated memory is still 263.2MB. Free memory was 116.2MB in the beginning and 112.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-05 20:37:08,216 INFO L158 Benchmark]: RCFGBuilder took 799.46ms. Allocated memory is still 263.2MB. Free memory was 112.0MB in the beginning and 174.4MB in the end (delta: -62.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 20:37:08,217 INFO L158 Benchmark]: TraceAbstraction took 446454.42ms. Allocated memory was 263.2MB in the beginning and 630.2MB in the end (delta: 367.0MB). Free memory was 173.3MB in the beginning and 440.2MB in the end (delta: -266.8MB). Peak memory consumption was 100.2MB. Max. memory is 8.0GB. [2022-12-05 20:37:08,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory was 178.8MB in the beginning and 178.7MB in the end (delta: 94.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5649.02ms. Allocated memory was 202.4MB in the beginning and 263.2MB in the end (delta: 60.8MB). Free memory was 166.8MB in the beginning and 125.6MB in the end (delta: 41.2MB). Peak memory consumption was 144.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 120.45ms. Allocated memory is still 263.2MB. Free memory was 125.6MB in the beginning and 116.2MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.33ms. Allocated memory is still 263.2MB. Free memory was 116.2MB in the beginning and 112.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 799.46ms. Allocated memory is still 263.2MB. Free memory was 112.0MB in the beginning and 174.4MB in the end (delta: -62.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 446454.42ms. Allocated memory was 263.2MB in the beginning and 630.2MB in the end (delta: 367.0MB). Free memory was 173.3MB in the beginning and 440.2MB in the end (delta: -266.8MB). Peak memory consumption was 100.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 436.1s, 317 PlacesBefore, 24 PlacesAfterwards, 321 TransitionsBefore, 20 TransitionsAfterwards, 9378 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 175 TrivialYvCompositions, 121 ConcurrentYvCompositions, 6 ChoiceCompositions, 303 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5943, independent: 5898, independent conditional: 5898, independent unconditional: 0, dependent: 40, dependent conditional: 40, dependent unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5943, independent: 5898, independent conditional: 0, independent unconditional: 5898, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5943, independent: 5898, independent conditional: 0, independent unconditional: 5898, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5943, independent: 5898, independent conditional: 0, independent unconditional: 5898, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5195, independent: 5169, independent conditional: 0, independent unconditional: 5169, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5195, independent: 5167, independent conditional: 0, independent unconditional: 5167, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2238, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 2129, unknown conditional: 0, unknown unconditional: 2129] ], Cache Queries: [ total: 5943, independent: 729, independent conditional: 0, independent unconditional: 729, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 5198, unknown conditional: 0, unknown unconditional: 5198] , Statistics on independence cache: Total cache size (in pairs): 11325, Positive cache size: 11301, Positive conditional cache size: 0, Positive unconditional cache size: 11301, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 446 locations, 4 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: 446.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 436.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=2, InterpolantAutomatonStates: 18, 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: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:37:08,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...