/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-a802222-m [2022-12-12 14:44:02,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 14:44:02,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 14:44:02,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 14:44:02,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 14:44:02,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 14:44:02,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 14:44:02,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 14:44:02,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 14:44:02,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 14:44:02,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 14:44:02,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 14:44:02,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 14:44:02,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 14:44:02,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 14:44:02,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 14:44:02,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 14:44:02,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 14:44:02,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 14:44:02,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 14:44:02,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 14:44:02,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 14:44:02,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 14:44:02,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 14:44:02,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 14:44:02,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 14:44:02,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 14:44:02,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 14:44:02,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 14:44:02,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 14:44:02,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 14:44:02,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 14:44:02,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 14:44:02,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 14:44:02,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 14:44:02,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 14:44:02,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 14:44:02,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 14:44:02,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 14:44:02,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 14:44:02,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 14:44:02,904 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 [2022-12-12 14:44:02,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 14:44:02,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 14:44:02,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 14:44:02,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 14:44:02,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 14:44:02,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 14:44:02,922 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 14:44:02,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 14:44:02,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 14:44:02,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 14:44:02,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 14:44:02,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 14:44:02,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 14:44:02,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 14:44:02,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 14:44:02,923 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 14:44:02,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 14:44:02,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 14:44:02,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 14:44:02,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 14:44:02,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 14:44:02,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 14:44:02,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 14:44:02,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:44:02,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 14:44:02,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 14:44:02,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 14:44:02,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 14:44:02,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 14:44:02,925 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 14:44:02,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 14:44:03,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 14:44:03,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 14:44:03,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 14:44:03,211 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 14:44:03,211 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 14:44:03,213 INFO L432 ainManager$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 [2022-12-12 14:44:04,312 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 14:44:04,732 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 14:44:04,732 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-12 14:44:04,780 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ecf92fe/692ef08d9de84e77bb8c7e0fd99c1b17/FLAG0c4ff57af [2022-12-12 14:44:04,794 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ecf92fe/692ef08d9de84e77bb8c7e0fd99c1b17 [2022-12-12 14:44:04,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 14:44:04,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 14:44:04,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 14:44:04,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 14:44:04,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 14:44:04,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:44:04" (1/1) ... [2022-12-12 14:44:04,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b1e239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:04, skipping insertion in model container [2022-12-12 14:44:04,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 02:44:04" (1/1) ... [2022-12-12 14:44:04,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 14:44:04,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 14:44:05,199 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] [2022-12-12 14:44:05,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:05,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:05,683 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:06,066 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 14:44:06,069 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:06,071 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:06,075 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:06,130 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:44:06,134 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:44:06,197 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 14:44:06,312 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:44:06,317 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:44:06,351 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 14:44:06,353 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 14:44:06,501 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 14:44:06,503 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 14:44:06,505 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 14:44:06,558 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 14:44:06,558 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:44:06,560 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 14:44:06,560 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:44:06,654 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 14:44:06,674 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 14:44:06,799 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 14:44:06,802 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 14:44:06,896 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 14:44:07,004 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 14:44:07,005 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 14:44:07,005 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 14:44:07,574 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 14:44:07,575 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:07,580 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:07,584 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:07,590 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:07,923 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-12 14:44:07,926 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-12 14:44:07,928 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-12 14:44:07,933 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-12 14:44:07,934 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-12 14:44:07,935 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-12 14:44:07,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:44:07,961 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 14:44:07,978 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] [2022-12-12 14:44:07,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:07,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:07,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:07,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:07,989 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:07,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:07,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:07,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:07,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:07,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:07,997 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:07,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:07,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:07,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:07,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:07,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:08,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:08,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:08,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:08,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:08,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 14:44:08,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 14:44:08,011 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 14:44:08,011 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:08,011 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:08,012 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 14:44:08,015 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:44:08,018 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 14:44:08,020 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 14:44:08,030 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:44:08,031 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 14:44:08,033 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 14:44:08,033 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 14:44:08,039 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 14:44:08,039 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 14:44:08,039 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 14:44:08,043 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 14:44:08,043 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:44:08,043 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 14:44:08,043 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 14:44:08,050 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 14:44:08,053 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 14:44:08,056 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 14:44:08,056 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 14:44:08,060 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 14:44:08,063 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 14:44:08,063 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 14:44:08,063 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 14:44:08,112 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 14:44:08,113 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:08,115 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:08,118 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:08,120 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 14:44:08,147 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-12 14:44:08,148 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-12 14:44:08,149 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-12 14:44:08,150 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-12 14:44:08,151 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-12 14:44:08,151 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-12 14:44:08,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 14:44:08,463 INFO L208 MainTranslator]: Completed translation [2022-12-12 14:44:08,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08 WrapperNode [2022-12-12 14:44:08,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 14:44:08,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 14:44:08,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 14:44:08,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 14:44:08,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,573 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-12 14:44:08,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 14:44:08,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 14:44:08,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 14:44:08,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 14:44:08,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 14:44:08,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 14:44:08,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 14:44:08,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 14:44:08,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (1/1) ... [2022-12-12 14:44:08,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 14:44:08,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 14:44:08,625 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) [2022-12-12 14:44:08,643 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 [2022-12-12 14:44:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 14:44:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 14:44:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-12 14:44:08,657 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-12 14:44:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 14:44:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 14:44:08,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 14:44:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-12 14:44:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 14:44:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 14:44:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 14:44:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 14:44:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 14:44:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-12 14:44:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-12 14:44:08,658 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-12 14:44:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 14:44:08,659 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 14:44:09,053 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 14:44:09,056 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 14:44:09,410 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 14:44:09,438 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 14:44:09,439 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-12 14:44:09,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:44:09 BoogieIcfgContainer [2022-12-12 14:44:09,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 14:44:09,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 14:44:09,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 14:44:09,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 14:44:09,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 02:44:04" (1/3) ... [2022-12-12 14:44:09,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230ac02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:44:09, skipping insertion in model container [2022-12-12 14:44:09,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 02:44:08" (2/3) ... [2022-12-12 14:44:09,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230ac02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 02:44:09, skipping insertion in model container [2022-12-12 14:44:09,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 02:44:09" (3/3) ... [2022-12-12 14:44:09,447 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-12 14:44:09,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 14:44:09,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 14:44:09,461 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 14:44:09,559 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 14:44:09,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 331 transitions, 678 flow [2022-12-12 14:44:09,656 INFO L130 PetriNetUnfolder]: 11/329 cut-off events. [2022-12-12 14:44:09,657 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 14:44:09,663 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. [2022-12-12 14:44:09,664 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 331 transitions, 678 flow [2022-12-12 14:44:09,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 321 transitions, 651 flow [2022-12-12 14:44:09,670 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 14:44:09,694 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 317 places, 321 transitions, 651 flow [2022-12-12 14:44:09,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 321 transitions, 651 flow [2022-12-12 14:44:09,761 INFO L130 PetriNetUnfolder]: 11/321 cut-off events. [2022-12-12 14:44:09,761 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 14:44:09,765 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. [2022-12-12 14:44:09,771 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 317 places, 321 transitions, 651 flow [2022-12-12 14:44:09,772 INFO L226 LiptonReduction]: Number of co-enabled transitions 9378 [2022-12-12 14:45:04,485 WARN L233 SmtUtils]: Spent 13.18s 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) [2022-12-12 14:45:14,694 WARN L233 SmtUtils]: Spent 10.20s 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) [2022-12-12 14:45:21,423 WARN L233 SmtUtils]: Spent 6.73s 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) [2022-12-12 14:45:43,480 WARN L233 SmtUtils]: Spent 17.17s 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) [2022-12-12 14:46:01,148 WARN L233 SmtUtils]: Spent 17.67s 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) [2022-12-12 14:46:18,614 WARN L233 SmtUtils]: Spent 17.46s 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) [2022-12-12 14:46:34,898 WARN L233 SmtUtils]: Spent 16.28s 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) [2022-12-12 14:48:31,150 WARN L233 SmtUtils]: Spent 1.89m 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) [2022-12-12 14:49:31,724 WARN L233 SmtUtils]: Spent 1.01m 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) [2022-12-12 14:51:23,368 WARN L233 SmtUtils]: Spent 1.86m 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) [2022-12-12 14:52:20,736 WARN L233 SmtUtils]: Spent 57.36s 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) [2022-12-12 14:52:28,548 INFO L241 LiptonReduction]: Total number of compositions: 304 [2022-12-12 14:52:28,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 14:52:28,579 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;@56eace9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 14:52:28,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 14:52:28,595 INFO L130 PetriNetUnfolder]: 3/58 cut-off events. [2022-12-12 14:52:28,595 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 14:52:28,595 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:52:28,596 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 14:52:28,596 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)] === [2022-12-12 14:52:28,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:52:28,603 INFO L85 PathProgramCache]: Analyzing trace with hash 433196876, now seen corresponding path program 1 times [2022-12-12 14:52:28,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:52:28,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708659679] [2022-12-12 14:52:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:52:28,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:52:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:52:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:52:29,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:52:29,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708659679] [2022-12-12 14:52:29,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708659679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:52:29,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:52:29,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 14:52:29,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136809745] [2022-12-12 14:52:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:52:29,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 14:52:29,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:52:29,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 14:52:29,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 14:52:29,529 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 61 [2022-12-12 14:52:29,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-12-12 14:52:29,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:52:29,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 61 [2022-12-12 14:52:29,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:52:30,277 INFO L130 PetriNetUnfolder]: 1890/3054 cut-off events. [2022-12-12 14:52:30,277 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-12-12 14:52:30,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6199 conditions, 3054 events. 1890/3054 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 18173 event pairs, 951 based on Foata normal form. 0/1184 useless extension candidates. Maximal degree in co-relation 5477. Up to 2345 conditions per place. [2022-12-12 14:52:30,285 INFO L137 encePairwiseOnDemand]: 28/61 looper letters, 52 selfloop transitions, 31 changer transitions 24/110 dead transitions. [2022-12-12 14:52:30,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 110 transitions, 449 flow [2022-12-12 14:52:30,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 14:52:30,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 14:52:30,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2022-12-12 14:52:30,298 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.639344262295082 [2022-12-12 14:52:30,299 INFO L175 Difference]: Start difference. First operand has 65 places, 61 transitions, 131 flow. Second operand 3 states and 117 transitions. [2022-12-12 14:52:30,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 110 transitions, 449 flow [2022-12-12 14:52:30,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 110 transitions, 441 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:52:30,309 INFO L231 Difference]: Finished difference. Result has 65 places, 83 transitions, 324 flow [2022-12-12 14:52:30,311 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=65, PETRI_TRANSITIONS=83} [2022-12-12 14:52:30,314 INFO L295 CegarLoopForPetriNet]: 65 programPoint places, 0 predicate places. [2022-12-12 14:52:30,314 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 83 transitions, 324 flow [2022-12-12 14:52:30,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-12-12 14:52:30,315 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:52:30,315 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:52:30,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 14:52:30,315 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)] === [2022-12-12 14:52:30,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:52:30,316 INFO L85 PathProgramCache]: Analyzing trace with hash 544201080, now seen corresponding path program 1 times [2022-12-12 14:52:30,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:52:30,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581406528] [2022-12-12 14:52:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:52:30,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:52:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:52:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:52:30,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:52:30,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581406528] [2022-12-12 14:52:30,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581406528] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:52:30,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:52:30,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:52:30,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721279643] [2022-12-12 14:52:30,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:52:30,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 14:52:30,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:52:30,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 14:52:30,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 14:52:30,894 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 61 [2022-12-12 14:52:30,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 83 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-12-12 14:52:30,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:52:30,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 61 [2022-12-12 14:52:30,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:52:31,727 INFO L130 PetriNetUnfolder]: 953/1655 cut-off events. [2022-12-12 14:52:31,728 INFO L131 PetriNetUnfolder]: For 175/175 co-relation queries the response was YES. [2022-12-12 14:52:31,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4077 conditions, 1655 events. 953/1655 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 10820 event pairs, 98 based on Foata normal form. 34/902 useless extension candidates. Maximal degree in co-relation 3712. Up to 1162 conditions per place. [2022-12-12 14:52:31,732 INFO L137 encePairwiseOnDemand]: 28/61 looper letters, 25 selfloop transitions, 54 changer transitions 79/161 dead transitions. [2022-12-12 14:52:31,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 161 transitions, 904 flow [2022-12-12 14:52:31,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:52:31,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:52:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2022-12-12 14:52:31,737 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49836065573770494 [2022-12-12 14:52:31,738 INFO L175 Difference]: Start difference. First operand has 65 places, 83 transitions, 324 flow. Second operand 5 states and 152 transitions. [2022-12-12 14:52:31,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 161 transitions, 904 flow [2022-12-12 14:52:31,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 161 transitions, 873 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 14:52:31,744 INFO L231 Difference]: Finished difference. Result has 63 places, 74 transitions, 441 flow [2022-12-12 14:52:31,744 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=441, PETRI_PLACES=63, PETRI_TRANSITIONS=74} [2022-12-12 14:52:31,745 INFO L295 CegarLoopForPetriNet]: 65 programPoint places, -2 predicate places. [2022-12-12 14:52:31,746 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 74 transitions, 441 flow [2022-12-12 14:52:31,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-12-12 14:52:31,746 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:52:31,746 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:52:31,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 14:52:31,747 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)] === [2022-12-12 14:52:31,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:52:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1892328721, now seen corresponding path program 1 times [2022-12-12 14:52:31,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:52:31,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604520662] [2022-12-12 14:52:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:52:31,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:52:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:52:32,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:52:32,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:52:32,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604520662] [2022-12-12 14:52:32,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604520662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:52:32,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:52:32,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 14:52:32,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094122202] [2022-12-12 14:52:32,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:52:32,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 14:52:32,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:52:32,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 14:52:32,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 14:52:32,463 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 61 [2022-12-12 14:52:32,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 74 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-12-12 14:52:32,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:52:32,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 61 [2022-12-12 14:52:32,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:52:32,988 INFO L130 PetriNetUnfolder]: 368/755 cut-off events. [2022-12-12 14:52:32,988 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-12-12 14:52:32,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2390 conditions, 755 events. 368/755 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 4829 event pairs, 153 based on Foata normal form. 87/466 useless extension candidates. Maximal degree in co-relation 1282. Up to 490 conditions per place. [2022-12-12 14:52:32,991 INFO L137 encePairwiseOnDemand]: 56/61 looper letters, 36 selfloop transitions, 4 changer transitions 54/96 dead transitions. [2022-12-12 14:52:32,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 96 transitions, 709 flow [2022-12-12 14:52:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:52:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:52:32,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 101 transitions. [2022-12-12 14:52:32,993 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.33114754098360655 [2022-12-12 14:52:32,993 INFO L175 Difference]: Start difference. First operand has 63 places, 74 transitions, 441 flow. Second operand 5 states and 101 transitions. [2022-12-12 14:52:32,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 96 transitions, 709 flow [2022-12-12 14:52:32,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 96 transitions, 653 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-12 14:52:32,996 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 211 flow [2022-12-12 14:52:32,996 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=211, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2022-12-12 14:52:32,997 INFO L295 CegarLoopForPetriNet]: 65 programPoint places, -10 predicate places. [2022-12-12 14:52:32,997 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 211 flow [2022-12-12 14:52:32,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-12-12 14:52:32,997 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 14:52:32,997 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 14:52:32,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 14:52:32,998 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)] === [2022-12-12 14:52:32,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 14:52:32,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1009086233, now seen corresponding path program 2 times [2022-12-12 14:52:32,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 14:52:32,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158168276] [2022-12-12 14:52:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 14:52:32,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 14:52:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 14:52:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 14:52:40,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 14:52:40,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158168276] [2022-12-12 14:52:40,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158168276] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 14:52:40,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 14:52:40,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 14:52:40,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209561798] [2022-12-12 14:52:40,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 14:52:40,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 14:52:40,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 14:52:40,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 14:52:40,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-12 14:52:40,016 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 61 [2022-12-12 14:52:40,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 211 flow. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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) [2022-12-12 14:52:40,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 14:52:40,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 61 [2022-12-12 14:52:40,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 14:52:40,344 INFO L130 PetriNetUnfolder]: 59/157 cut-off events. [2022-12-12 14:52:40,344 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-12-12 14:52:40,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 157 events. 59/157 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 834 event pairs, 58 based on Foata normal form. 87/133 useless extension candidates. Maximal degree in co-relation 458. Up to 150 conditions per place. [2022-12-12 14:52:40,345 INFO L137 encePairwiseOnDemand]: 57/61 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2022-12-12 14:52:40,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 41 transitions, 281 flow [2022-12-12 14:52:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 14:52:40,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 14:52:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2022-12-12 14:52:40,347 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.18032786885245902 [2022-12-12 14:52:40,347 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 211 flow. Second operand 5 states and 55 transitions. [2022-12-12 14:52:40,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 41 transitions, 281 flow [2022-12-12 14:52:40,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 41 transitions, 165 flow, removed 29 selfloop flow, removed 8 redundant places. [2022-12-12 14:52:40,348 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2022-12-12 14:52:40,348 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2022-12-12 14:52:40,349 INFO L295 CegarLoopForPetriNet]: 65 programPoint places, -16 predicate places. [2022-12-12 14:52:40,349 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2022-12-12 14:52:40,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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) [2022-12-12 14:52:40,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 14:52:40,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 14:52:40,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 14:52:40,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-12 14:52:40,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 14:52:40,353 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-12 14:52:40,357 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 14:52:40,357 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 14:52:40,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 02:52:40 BasicIcfg [2022-12-12 14:52:40,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 14:52:40,360 INFO L158 Benchmark]: Toolchain (without parser) took 515563.73ms. Allocated memory was 198.2MB in the beginning and 859.8MB in the end (delta: 661.7MB). Free memory was 163.8MB in the beginning and 540.6MB in the end (delta: -376.7MB). Peak memory consumption was 286.0MB. Max. memory is 8.0GB. [2022-12-12 14:52:40,360 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory was 175.0MB in the beginning and 174.9MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 14:52:40,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3663.41ms. Allocated memory was 198.2MB in the beginning and 326.1MB in the end (delta: 127.9MB). Free memory was 163.3MB in the beginning and 248.9MB in the end (delta: -85.6MB). Peak memory consumption was 114.7MB. Max. memory is 8.0GB. [2022-12-12 14:52:40,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.26ms. Allocated memory is still 326.1MB. Free memory was 248.9MB in the beginning and 239.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-12-12 14:52:40,363 INFO L158 Benchmark]: Boogie Preprocessor took 28.82ms. Allocated memory is still 326.1MB. Free memory was 239.5MB in the beginning and 235.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-12 14:52:40,363 INFO L158 Benchmark]: RCFGBuilder took 838.51ms. Allocated memory is still 326.1MB. Free memory was 235.3MB in the beginning and 193.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2022-12-12 14:52:40,365 INFO L158 Benchmark]: TraceAbstraction took 510916.75ms. Allocated memory was 326.1MB in the beginning and 859.8MB in the end (delta: 533.7MB). Free memory was 192.3MB in the beginning and 540.6MB in the end (delta: -348.2MB). Peak memory consumption was 185.5MB. Max. memory is 8.0GB. [2022-12-12 14:52:40,369 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 198.2MB. Free memory was 175.0MB in the beginning and 174.9MB in the end (delta: 63.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 3663.41ms. Allocated memory was 198.2MB in the beginning and 326.1MB in the end (delta: 127.9MB). Free memory was 163.3MB in the beginning and 248.9MB in the end (delta: -85.6MB). Peak memory consumption was 114.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 109.26ms. Allocated memory is still 326.1MB. Free memory was 248.9MB in the beginning and 239.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.82ms. Allocated memory is still 326.1MB. Free memory was 239.5MB in the beginning and 235.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 838.51ms. Allocated memory is still 326.1MB. Free memory was 235.3MB in the beginning and 193.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * TraceAbstraction took 510916.75ms. Allocated memory was 326.1MB in the beginning and 859.8MB in the end (delta: 533.7MB). Free memory was 192.3MB in the beginning and 540.6MB in the end (delta: -348.2MB). Peak memory consumption was 185.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 498.8s, 317 PlacesBefore, 65 PlacesAfterwards, 321 TransitionsBefore, 61 TransitionsAfterwards, 9378 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 175 TrivialYvCompositions, 121 ConcurrentYvCompositions, 7 ChoiceCompositions, 304 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9998, independent: 9907, independent conditional: 9907, independent unconditional: 0, dependent: 85, dependent conditional: 85, dependent unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9998, independent: 9907, independent conditional: 0, independent unconditional: 9907, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9998, independent: 9907, independent conditional: 0, independent unconditional: 9907, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9998, independent: 9907, independent conditional: 0, independent unconditional: 9907, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7098, independent: 7066, independent conditional: 0, independent unconditional: 7066, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7098, independent: 7062, independent conditional: 0, independent unconditional: 7062, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2277, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 2138, unknown conditional: 0, unknown unconditional: 2138] ], Cache Queries: [ total: 9998, independent: 2841, independent conditional: 0, independent unconditional: 2841, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 7103, unknown conditional: 0, unknown unconditional: 7103] , Statistics on independence cache: Total cache size (in pairs): 20897, Positive cache size: 20866, Positive conditional cache size: 0, Positive unconditional cache size: 20866, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, 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: 510.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 499.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 291 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 746 IncrementalHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 0 mSDtfsCounter, 746 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=441occurred 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, 8.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 393 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! [2022-12-12 14:52:40,426 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...