./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:16:51,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:16:51,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:16:51,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:16:51,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:16:51,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:16:51,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:16:51,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:16:51,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:16:51,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:16:51,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:16:51,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:16:51,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:16:51,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:16:51,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:16:51,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:16:51,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:16:51,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:16:51,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:16:51,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:16:51,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:16:51,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:16:51,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:16:51,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:16:51,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:16:51,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:16:51,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:16:51,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:16:51,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:16:51,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:16:51,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:16:51,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:16:51,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:16:51,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:16:51,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:16:51,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:16:51,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:16:51,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:16:51,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:16:51,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:16:51,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:16:51,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 17:16:51,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:16:51,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:16:51,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:16:51,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:16:51,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:16:51,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:16:51,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:16:51,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:16:51,984 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:16:51,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:16:51,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:16:51,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:16:51,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:16:51,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:16:51,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:16:51,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:16:51,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:16:51,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:16:51,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:16:51,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:16:51,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:16:51,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:16:51,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:16:51,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:16:51,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:16:51,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:16:51,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:16:51,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:16:51,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:16:51,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:16:51,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:16:51,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:16:51,988 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:16:51,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:16:51,989 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:16:51,989 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 [2022-12-13 17:16:52,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:16:52,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:16:52,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:16:52,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:16:52,164 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:16:52,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-13 17:16:54,690 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:16:55,015 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:16:55,016 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-13 17:16:55,037 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/data/d468d9c8d/ca5bd772aa614d6b801e3f0458fecb61/FLAGd77466702 [2022-12-13 17:16:55,258 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/data/d468d9c8d/ca5bd772aa614d6b801e3f0458fecb61 [2022-12-13 17:16:55,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:16:55,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:16:55,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:16:55,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:16:55,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:16:55,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:16:55" (1/1) ... [2022-12-13 17:16:55,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fbf68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:16:55, skipping insertion in model container [2022-12-13 17:16:55,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:16:55" (1/1) ... [2022-12-13 17:16:55,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:16:55,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:16:55,578 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 17:16:55,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:55,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:55,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:55,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:55,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:55,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:55,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:55,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:55,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:55,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:55,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:55,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:55,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:55,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:56,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:56,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:56,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:56,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:56,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:56,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:56,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:56,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:56,534 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 17:16:56,538 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 17:16:56,542 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 17:16:56,550 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 17:16:56,657 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 17:16:56,663 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 17:16:56,797 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 17:16:57,036 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 17:16:57,045 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 17:16:57,110 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 17:16:57,114 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 17:16:57,368 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 17:16:57,370 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 17:16:57,373 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 17:16:57,448 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 17:16:57,448 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 17:16:57,451 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 17:16:57,451 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 17:16:57,579 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 17:16:57,606 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 17:16:57,736 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 17:16:57,739 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 17:16:57,872 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 17:16:58,022 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 17:16:58,022 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 17:16:58,022 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 17:16:58,822 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 17:16:58,822 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 17:16:58,825 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 17:16:58,828 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 17:16:58,830 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 17:16:59,314 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 17:16:59,319 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 17:16:59,323 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 17:16:59,331 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 17:16:59,332 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 17:16:59,335 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 17:16:59,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:16:59,368 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:16:59,383 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 17:16:59,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,399 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:16:59,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:16:59,419 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 17:16:59,419 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 17:16:59,420 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 17:16:59,421 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 17:16:59,424 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 17:16:59,425 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 17:16:59,428 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 17:16:59,443 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 17:16:59,444 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 17:16:59,447 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 17:16:59,447 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 17:16:59,459 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 17:16:59,459 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 17:16:59,459 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 17:16:59,462 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 17:16:59,463 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 17:16:59,463 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 17:16:59,463 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 17:16:59,471 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 17:16:59,473 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 17:16:59,477 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 17:16:59,478 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 17:16:59,482 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 17:16:59,485 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 17:16:59,485 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 17:16:59,485 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 17:16:59,600 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 17:16:59,600 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 17:16:59,602 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 17:16:59,606 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 17:16:59,609 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 17:16:59,641 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 17:16:59,643 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 17:16:59,644 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 17:16:59,645 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 17:16:59,645 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 17:16:59,646 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 17:16:59,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:17:00,017 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:17:00,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00 WrapperNode [2022-12-13 17:17:00,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:17:00,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:17:00,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:17:00,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:17:00,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,127 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-13 17:17:00,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:17:00,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:17:00,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:17:00,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:17:00,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:17:00,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:17:00,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:17:00,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:17:00,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (1/1) ... [2022-12-13 17:17:00,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:17:00,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:17:00,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:17:00,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:17:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:17:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 17:17:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 17:17:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 17:17:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:17:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:17:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-13 17:17:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 17:17:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:17:00,231 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:17:00,530 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:17:00,532 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:17:00,862 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:17:00,889 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:17:00,890 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 17:17:00,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:17:00 BoogieIcfgContainer [2022-12-13 17:17:00,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:17:00,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:17:00,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:17:00,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:17:00,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:16:55" (1/3) ... [2022-12-13 17:17:00,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e467770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:17:00, skipping insertion in model container [2022-12-13 17:17:00,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:17:00" (2/3) ... [2022-12-13 17:17:00,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e467770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:17:00, skipping insertion in model container [2022-12-13 17:17:00,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:17:00" (3/3) ... [2022-12-13 17:17:00,900 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-12-13 17:17:00,908 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:17:00,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:17:00,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 17:17:00,918 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:17:01,029 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 17:17:01,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 367 transitions, 750 flow [2022-12-13 17:17:01,191 INFO L130 PetriNetUnfolder]: 11/365 cut-off events. [2022-12-13 17:17:01,191 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:17:01,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 365 events. 11/365 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 348 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 300. Up to 4 conditions per place. [2022-12-13 17:17:01,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 363 places, 367 transitions, 750 flow [2022-12-13 17:17:01,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 352 places, 356 transitions, 721 flow [2022-12-13 17:17:01,210 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:17:01,220 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 356 transitions, 721 flow [2022-12-13 17:17:01,223 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 356 transitions, 721 flow [2022-12-13 17:17:01,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 356 transitions, 721 flow [2022-12-13 17:17:01,316 INFO L130 PetriNetUnfolder]: 11/356 cut-off events. [2022-12-13 17:17:01,316 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:17:01,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 356 events. 11/356 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 330 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 300. Up to 4 conditions per place. [2022-12-13 17:17:01,324 INFO L119 LiptonReduction]: Number of co-enabled transitions 12372 [2022-12-13 17:17:38,674 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:19:58,784 WARN L233 SmtUtils]: Spent 2.13m on a formula simplification. DAG size of input: 553 DAG size of output: 549 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:20:52,969 WARN L233 SmtUtils]: Spent 54.17s on a formula simplification that was a NOOP. DAG size: 503 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:23:06,234 WARN L233 SmtUtils]: Spent 2.22m on a formula simplification. DAG size of input: 564 DAG size of output: 560 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:23:44,730 WARN L233 SmtUtils]: Spent 38.48s on a formula simplification that was a NOOP. DAG size: 514 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 17:23:44,733 INFO L134 LiptonReduction]: Checked pairs total: 11511 [2022-12-13 17:23:44,733 INFO L136 LiptonReduction]: Total number of compositions: 394 [2022-12-13 17:23:44,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:23:44,746 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=true, 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;@49d10bf2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:23:44,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 17:23:44,753 INFO L130 PetriNetUnfolder]: 4/16 cut-off events. [2022-12-13 17:23:44,753 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:23:44,753 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:23:44,753 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:23:44,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 17:23:44,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:23:44,758 INFO L85 PathProgramCache]: Analyzing trace with hash 2098103798, now seen corresponding path program 1 times [2022-12-13 17:23:44,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:23:44,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112244209] [2022-12-13 17:23:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:23:44,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:23:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:23:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:23:45,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:23:45,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112244209] [2022-12-13 17:23:45,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112244209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:23:45,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:23:45,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:23:45,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276656841] [2022-12-13 17:23:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:23:45,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:23:45,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:23:45,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:23:45,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:23:45,535 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 761 [2022-12-13 17:23:45,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 346.0) internal successors, (1038), 3 states have internal predecessors, (1038), 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) [2022-12-13 17:23:45,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:23:45,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 761 [2022-12-13 17:23:45,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:23:45,855 INFO L130 PetriNetUnfolder]: 137/232 cut-off events. [2022-12-13 17:23:45,855 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-12-13 17:23:45,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 232 events. 137/232 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 722 event pairs, 53 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 412. Up to 186 conditions per place. [2022-12-13 17:23:45,857 INFO L137 encePairwiseOnDemand]: 753/761 looper letters, 15 selfloop transitions, 6 changer transitions 8/29 dead transitions. [2022-12-13 17:23:45,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 29 transitions, 131 flow [2022-12-13 17:23:45,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:23:45,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:23:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2022-12-13 17:23:45,875 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4651773981603154 [2022-12-13 17:23:45,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2022-12-13 17:23:45,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2022-12-13 17:23:45,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:23:45,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2022-12-13 17:23:45,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 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) [2022-12-13 17:23:45,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 761.0) internal successors, (3044), 4 states have internal predecessors, (3044), 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) [2022-12-13 17:23:45,899 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 761.0) internal successors, (3044), 4 states have internal predecessors, (3044), 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) [2022-12-13 17:23:45,900 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 47 flow. Second operand 3 states and 1062 transitions. [2022-12-13 17:23:45,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 29 transitions, 131 flow [2022-12-13 17:23:45,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 29 transitions, 123 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:23:45,905 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 71 flow [2022-12-13 17:23:45,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=761, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2022-12-13 17:23:45,910 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 17:23:45,911 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 71 flow [2022-12-13 17:23:45,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 346.0) internal successors, (1038), 3 states have internal predecessors, (1038), 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) [2022-12-13 17:23:45,912 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:23:45,912 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:23:45,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:23:45,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 17:23:45,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:23:45,913 INFO L85 PathProgramCache]: Analyzing trace with hash 616708386, now seen corresponding path program 1 times [2022-12-13 17:23:45,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:23:45,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350161623] [2022-12-13 17:23:45,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:23:45,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:23:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:23:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:23:46,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:23:46,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350161623] [2022-12-13 17:23:46,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350161623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:23:46,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:23:46,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:23:46,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752122826] [2022-12-13 17:23:46,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:23:46,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:23:46,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:23:46,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:23:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:23:46,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 761 [2022-12-13 17:23:46,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 71 flow. Second operand has 6 states, 6 states have (on average 340.1666666666667) internal successors, (2041), 6 states have internal predecessors, (2041), 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) [2022-12-13 17:23:46,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:23:46,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 761 [2022-12-13 17:23:46,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:23:47,022 INFO L130 PetriNetUnfolder]: 68/124 cut-off events. [2022-12-13 17:23:47,022 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-13 17:23:47,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 124 events. 68/124 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 380 event pairs, 3 based on Foata normal form. 3/117 useless extension candidates. Maximal degree in co-relation 262. Up to 90 conditions per place. [2022-12-13 17:23:47,023 INFO L137 encePairwiseOnDemand]: 753/761 looper letters, 19 selfloop transitions, 9 changer transitions 2/30 dead transitions. [2022-12-13 17:23:47,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 30 transitions, 171 flow [2022-12-13 17:23:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:23:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:23:47,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1724 transitions. [2022-12-13 17:23:47,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4530880420499343 [2022-12-13 17:23:47,026 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1724 transitions. [2022-12-13 17:23:47,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1724 transitions. [2022-12-13 17:23:47,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:23:47,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1724 transitions. [2022-12-13 17:23:47,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 344.8) internal successors, (1724), 5 states have internal predecessors, (1724), 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) [2022-12-13 17:23:47,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 761.0) internal successors, (4566), 6 states have internal predecessors, (4566), 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) [2022-12-13 17:23:47,034 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 761.0) internal successors, (4566), 6 states have internal predecessors, (4566), 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) [2022-12-13 17:23:47,034 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 71 flow. Second operand 5 states and 1724 transitions. [2022-12-13 17:23:47,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 30 transitions, 171 flow [2022-12-13 17:23:47,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 30 transitions, 165 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:23:47,035 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 104 flow [2022-12-13 17:23:47,036 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=761, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2022-12-13 17:23:47,036 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2022-12-13 17:23:47,036 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 104 flow [2022-12-13 17:23:47,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.1666666666667) internal successors, (2041), 6 states have internal predecessors, (2041), 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) [2022-12-13 17:23:47,037 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:23:47,037 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:23:47,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:23:47,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 17:23:47,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:23:47,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1466896611, now seen corresponding path program 1 times [2022-12-13 17:23:47,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:23:47,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709912687] [2022-12-13 17:23:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:23:47,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:23:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:23:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:23:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:23:47,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709912687] [2022-12-13 17:23:47,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709912687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:23:47,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:23:47,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:23:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903741566] [2022-12-13 17:23:47,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:23:47,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:23:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:23:47,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:23:47,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:23:47,960 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 761 [2022-12-13 17:23:47,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 343.5) internal successors, (2061), 6 states have internal predecessors, (2061), 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) [2022-12-13 17:23:47,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:23:47,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 761 [2022-12-13 17:23:47,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:23:48,484 INFO L130 PetriNetUnfolder]: 69/131 cut-off events. [2022-12-13 17:23:48,484 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-12-13 17:23:48,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 131 events. 69/131 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 420 event pairs, 11 based on Foata normal form. 6/127 useless extension candidates. Maximal degree in co-relation 262. Up to 85 conditions per place. [2022-12-13 17:23:48,484 INFO L137 encePairwiseOnDemand]: 756/761 looper letters, 10 selfloop transitions, 4 changer transitions 18/32 dead transitions. [2022-12-13 17:23:48,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 212 flow [2022-12-13 17:23:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:23:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:23:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1739 transitions. [2022-12-13 17:23:48,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45703022339027594 [2022-12-13 17:23:48,488 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1739 transitions. [2022-12-13 17:23:48,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1739 transitions. [2022-12-13 17:23:48,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:23:48,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1739 transitions. [2022-12-13 17:23:48,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 347.8) internal successors, (1739), 5 states have internal predecessors, (1739), 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) [2022-12-13 17:23:48,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 761.0) internal successors, (4566), 6 states have internal predecessors, (4566), 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) [2022-12-13 17:23:48,497 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 761.0) internal successors, (4566), 6 states have internal predecessors, (4566), 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) [2022-12-13 17:23:48,498 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 104 flow. Second operand 5 states and 1739 transitions. [2022-12-13 17:23:48,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 212 flow [2022-12-13 17:23:48,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 32 transitions, 201 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:23:48,499 INFO L231 Difference]: Finished difference. Result has 25 places, 14 transitions, 65 flow [2022-12-13 17:23:48,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=761, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=25, PETRI_TRANSITIONS=14} [2022-12-13 17:23:48,499 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2022-12-13 17:23:48,500 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 14 transitions, 65 flow [2022-12-13 17:23:48,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 343.5) internal successors, (2061), 6 states have internal predecessors, (2061), 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) [2022-12-13 17:23:48,501 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:23:48,501 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:23:48,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:23:48,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 17:23:48,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:23:48,501 INFO L85 PathProgramCache]: Analyzing trace with hash -49005295, now seen corresponding path program 2 times [2022-12-13 17:23:48,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:23:48,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998612267] [2022-12-13 17:23:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:23:48,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:23:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:23:49,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:23:49,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:23:49,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998612267] [2022-12-13 17:23:49,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998612267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:23:49,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:23:49,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:23:49,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414406617] [2022-12-13 17:23:49,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:23:49,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:23:49,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:23:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:23:49,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:23:50,089 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 761 [2022-12-13 17:23:50,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 14 transitions, 65 flow. Second operand has 7 states, 7 states have (on average 340.2857142857143) internal successors, (2382), 7 states have internal predecessors, (2382), 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) [2022-12-13 17:23:50,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:23:50,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 761 [2022-12-13 17:23:50,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:23:50,485 INFO L130 PetriNetUnfolder]: 6/20 cut-off events. [2022-12-13 17:23:50,485 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-12-13 17:23:50,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 20 events. 6/20 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 3 based on Foata normal form. 6/24 useless extension candidates. Maximal degree in co-relation 45. Up to 15 conditions per place. [2022-12-13 17:23:50,486 INFO L137 encePairwiseOnDemand]: 757/761 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2022-12-13 17:23:50,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 13 transitions, 83 flow [2022-12-13 17:23:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:23:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:23:50,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1709 transitions. [2022-12-13 17:23:50,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4491458607095926 [2022-12-13 17:23:50,489 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1709 transitions. [2022-12-13 17:23:50,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1709 transitions. [2022-12-13 17:23:50,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:23:50,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1709 transitions. [2022-12-13 17:23:50,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 341.8) internal successors, (1709), 5 states have internal predecessors, (1709), 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) [2022-12-13 17:23:50,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 761.0) internal successors, (4566), 6 states have internal predecessors, (4566), 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) [2022-12-13 17:23:50,501 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 761.0) internal successors, (4566), 6 states have internal predecessors, (4566), 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) [2022-12-13 17:23:50,501 INFO L175 Difference]: Start difference. First operand has 25 places, 14 transitions, 65 flow. Second operand 5 states and 1709 transitions. [2022-12-13 17:23:50,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 13 transitions, 83 flow [2022-12-13 17:23:50,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 55 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-12-13 17:23:50,502 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2022-12-13 17:23:50,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=761, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=15, 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=19, PETRI_TRANSITIONS=0} [2022-12-13 17:23:50,502 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, -3 predicate places. [2022-12-13 17:23:50,502 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2022-12-13 17:23:50,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 340.2857142857143) internal successors, (2382), 7 states have internal predecessors, (2382), 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) [2022-12-13 17:23:50,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 17:23:50,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 17:23:50,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 17:23:50,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 17:23:50,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:23:50,506 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-13 17:23:50,509 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:23:50,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:23:50,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:23:50 BasicIcfg [2022-12-13 17:23:50,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:23:50,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:23:50,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:23:50,512 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:23:50,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:17:00" (3/4) ... [2022-12-13 17:23:50,514 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:23:50,518 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_read_nvram [2022-12-13 17:23:50,518 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 17:23:50,521 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-12-13 17:23:50,522 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 17:23:50,522 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-13 17:23:50,522 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:23:50,522 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:23:50,552 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:23:50,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:23:50,553 INFO L158 Benchmark]: Toolchain (without parser) took 415291.71ms. Allocated memory was 123.7MB in the beginning and 274.7MB in the end (delta: 151.0MB). Free memory was 76.1MB in the beginning and 182.0MB in the end (delta: -105.9MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2022-12-13 17:23:50,553 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 123.7MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:23:50,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4755.93ms. Allocated memory was 123.7MB in the beginning and 211.8MB in the end (delta: 88.1MB). Free memory was 76.1MB in the beginning and 135.5MB in the end (delta: -59.3MB). Peak memory consumption was 92.6MB. Max. memory is 16.1GB. [2022-12-13 17:23:50,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.77ms. Allocated memory is still 211.8MB. Free memory was 135.5MB in the beginning and 126.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 17:23:50,554 INFO L158 Benchmark]: Boogie Preprocessor took 35.32ms. Allocated memory is still 211.8MB. Free memory was 126.0MB in the beginning and 121.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:23:50,554 INFO L158 Benchmark]: RCFGBuilder took 728.87ms. Allocated memory is still 211.8MB. Free memory was 121.8MB in the beginning and 78.8MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-13 17:23:50,554 INFO L158 Benchmark]: TraceAbstraction took 409617.50ms. Allocated memory was 211.8MB in the beginning and 274.7MB in the end (delta: 62.9MB). Free memory was 77.8MB in the beginning and 186.2MB in the end (delta: -108.4MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2022-12-13 17:23:50,554 INFO L158 Benchmark]: Witness Printer took 40.30ms. Allocated memory is still 274.7MB. Free memory was 186.2MB in the beginning and 182.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:23:50,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 123.7MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4755.93ms. Allocated memory was 123.7MB in the beginning and 211.8MB in the end (delta: 88.1MB). Free memory was 76.1MB in the beginning and 135.5MB in the end (delta: -59.3MB). Peak memory consumption was 92.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.77ms. Allocated memory is still 211.8MB. Free memory was 135.5MB in the beginning and 126.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.32ms. Allocated memory is still 211.8MB. Free memory was 126.0MB in the beginning and 121.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 728.87ms. Allocated memory is still 211.8MB. Free memory was 121.8MB in the beginning and 78.8MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 409617.50ms. Allocated memory was 211.8MB in the beginning and 274.7MB in the end (delta: 62.9MB). Free memory was 77.8MB in the beginning and 186.2MB in the end (delta: -108.4MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * Witness Printer took 40.30ms. Allocated memory is still 274.7MB. Free memory was 186.2MB in the beginning and 182.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 403.5s, 352 PlacesBefore, 22 PlacesAfterwards, 356 TransitionsBefore, 19 TransitionsAfterwards, 12372 CoEnabledTransitionPairs, 9 FixpointIterations, 198 TrivialSequentialCompositions, 149 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 27 ConcurrentYvCompositions, 7 ChoiceCompositions, 394 TotalNumberOfCompositions, 11511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9919, independent: 9812, independent conditional: 0, independent unconditional: 9812, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6779, independent: 6730, independent conditional: 0, independent unconditional: 6730, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9919, independent: 3082, independent conditional: 0, independent unconditional: 3082, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 6779, unknown conditional: 0, unknown unconditional: 6779] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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, 502 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: 409.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 403.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 772 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 516 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 232 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1193 IncrementalHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 8 mSDtfsCounter, 1193 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=104occurred 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, 0.8s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 260 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! [2022-12-13 17:23:50,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8d8080-8b56-43cf-8499-70327e64d44b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE