./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_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_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/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_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/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_a429abc8-9c0a-4edd-bcef-93ed7297c566/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 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 --- 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 14:06:48,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:06:48,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:06:49,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:06:49,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:06:49,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:06:49,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:06:49,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:06:49,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:06:49,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:06:49,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:06:49,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:06:49,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:06:49,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:06:49,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:06:49,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:06:49,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:06:49,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:06:49,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:06:49,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:06:49,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:06:49,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:06:49,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:06:49,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:06:49,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:06:49,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:06:49,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:06:49,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:06:49,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:06:49,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:06:49,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:06:49,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:06:49,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:06:49,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:06:49,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:06:49,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:06:49,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:06:49,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:06:49,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:06:49,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:06:49,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:06:49,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:06:49,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:06:49,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:06:49,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:06:49,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:06:49,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:06:49,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:06:49,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:06:49,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:06:49,058 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:06:49,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:06:49,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:06:49,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:06:49,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:06:49,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:06:49,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:06:49,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:06:49,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:06:49,060 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:06:49,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:06:49,061 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:06:49,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:06:49,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:06:49,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:06:49,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:06:49,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:06:49,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:06:49,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:06:49,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:06:49,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:06:49,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:06:49,063 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:06:49,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:06:49,063 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:06:49,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:06:49,064 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:06:49,064 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_a429abc8-9c0a-4edd-bcef-93ed7297c566/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 [2022-12-13 14:06:49,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:06:49,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:06:49,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:06:49,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:06:49,245 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:06:49,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 14:06:51,824 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:06:52,134 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:06:52,135 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 14:06:52,156 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/data/9ac702b55/3a39b06327044c13b567cbc08cecbb53/FLAGab12cb26c [2022-12-13 14:06:52,166 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/data/9ac702b55/3a39b06327044c13b567cbc08cecbb53 [2022-12-13 14:06:52,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:06:52,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:06:52,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:06:52,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:06:52,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:06:52,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:06:52" (1/1) ... [2022-12-13 14:06:52,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1c57d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:52, skipping insertion in model container [2022-12-13 14:06:52,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:06:52" (1/1) ... [2022-12-13 14:06:52,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:06:52,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:06:52,533 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_a429abc8-9c0a-4edd-bcef-93ed7297c566/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 14:06:52,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:52,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:52,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:53,200 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 14:06:53,203 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 14:06:53,206 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 14:06:53,212 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 14:06:53,282 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 14:06:53,285 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 14:06:53,373 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 14:06:53,524 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 14:06:53,530 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 14:06:53,579 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 14:06:53,582 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 14:06:53,790 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 14:06:53,793 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 14:06:53,795 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 14:06:53,864 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 14:06:53,864 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 14:06:53,866 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 14:06:53,866 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 14:06:53,990 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 14:06:54,019 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 14:06:54,156 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 14:06:54,159 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 14:06:54,288 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 14:06:54,445 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 14:06:54,446 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 14:06:54,446 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 14:06:55,223 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 14:06:55,223 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 14:06:55,226 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 14:06:55,229 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 14:06:55,241 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 14:06:55,731 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 14:06:55,734 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 14:06:55,738 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 14:06:55,746 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 14:06:55,747 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 14:06:55,750 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 14:06:55,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:06:55,781 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:06:55,792 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_a429abc8-9c0a-4edd-bcef-93ed7297c566/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-12-13 14:06:55,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:06:55,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:06:55,820 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-13 14:06:55,820 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 14:06:55,821 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 14:06:55,821 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-13 14:06:55,825 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 14:06:55,826 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-13 14:06:55,828 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-13 14:06:55,837 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 14:06:55,838 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-13 14:06:55,840 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-13 14:06:55,840 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-13 14:06:55,847 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-13 14:06:55,848 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-13 14:06:55,848 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-13 14:06:55,851 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-13 14:06:55,851 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 14:06:55,851 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-13 14:06:55,852 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-13 14:06:55,858 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-13 14:06:55,859 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-13 14:06:55,863 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-13 14:06:55,863 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-13 14:06:55,866 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-13 14:06:55,868 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-13 14:06:55,869 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-13 14:06:55,869 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-13 14:06:55,961 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-13 14:06:55,961 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 14:06:55,963 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 14:06:55,965 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 14:06:55,966 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-13 14:06:56,013 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-13 14:06:56,015 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-13 14:06:56,016 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-13 14:06:56,017 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-13 14:06:56,018 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-13 14:06:56,018 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-13 14:06:56,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:06:56,422 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:06:56,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56 WrapperNode [2022-12-13 14:06:56,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:06:56,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:06:56,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:06:56,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:06:56,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,514 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 16, statements flattened = 282 [2022-12-13 14:06:56,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:06:56,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:06:56,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:06:56,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:06:56,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:06:56,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:06:56,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:06:56,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:06:56,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (1/1) ... [2022-12-13 14:06:56,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:06:56,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:06:56,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:06:56,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:06:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:06:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:06:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 14:06:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 14:06:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:06:56,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:06:56,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:06:56,608 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-12-13 14:06:56,609 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-12-13 14:06:56,610 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 14:06:56,926 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:06:56,927 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:06:57,264 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:06:57,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:06:57,284 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:06:57,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:06:57 BoogieIcfgContainer [2022-12-13 14:06:57,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:06:57,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:06:57,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:06:57,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:06:57,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:06:52" (1/3) ... [2022-12-13 14:06:57,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4ce9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:06:57, skipping insertion in model container [2022-12-13 14:06:57,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:06:56" (2/3) ... [2022-12-13 14:06:57,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4ce9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:06:57, skipping insertion in model container [2022-12-13 14:06:57,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:06:57" (3/3) ... [2022-12-13 14:06:57,292 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-12-13 14:06:57,298 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:06:57,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:06:57,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:06:57,305 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:06:57,370 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 14:06:57,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 322 transitions, 660 flow [2022-12-13 14:06:57,467 INFO L130 PetriNetUnfolder]: 11/320 cut-off events. [2022-12-13 14:06:57,468 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 14:06:57,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 320 events. 11/320 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 246 event pairs, 0 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 253. Up to 5 conditions per place. [2022-12-13 14:06:57,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 318 places, 322 transitions, 660 flow [2022-12-13 14:06:57,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 307 places, 311 transitions, 631 flow [2022-12-13 14:06:57,485 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:06:57,502 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 307 places, 311 transitions, 631 flow [2022-12-13 14:06:57,505 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 307 places, 311 transitions, 631 flow [2022-12-13 14:06:57,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 311 transitions, 631 flow [2022-12-13 14:06:57,551 INFO L130 PetriNetUnfolder]: 11/311 cut-off events. [2022-12-13 14:06:57,551 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 14:06:57,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 311 events. 11/311 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 247 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 253. Up to 5 conditions per place. [2022-12-13 14:06:57,555 INFO L119 LiptonReduction]: Number of co-enabled transitions 6960 [2022-12-13 14:07:58,533 WARN L233 SmtUtils]: Spent 16.56s on a formula simplification that was a NOOP. DAG size: 446 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:08:13,811 WARN L233 SmtUtils]: Spent 15.27s on a formula simplification that was a NOOP. DAG size: 426 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:08:27,303 WARN L233 SmtUtils]: Spent 13.49s on a formula simplification that was a NOOP. DAG size: 446 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:08:39,932 WARN L233 SmtUtils]: Spent 12.62s on a formula simplification that was a NOOP. DAG size: 426 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:10:39,445 WARN L233 SmtUtils]: Spent 1.99m on a formula simplification. DAG size of input: 521 DAG size of output: 517 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:11:41,561 WARN L233 SmtUtils]: Spent 1.04m on a formula simplification that was a NOOP. DAG size: 505 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:14:12,126 WARN L233 SmtUtils]: Spent 2.51m on a formula simplification. DAG size of input: 529 DAG size of output: 525 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:14:52,676 WARN L233 SmtUtils]: Spent 40.54s on a formula simplification that was a NOOP. DAG size: 513 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:14:52,690 INFO L134 LiptonReduction]: Checked pairs total: 7704 [2022-12-13 14:14:52,690 INFO L136 LiptonReduction]: Total number of compositions: 355 [2022-12-13 14:14:52,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:14:52,708 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;@41adc68b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:14:52,709 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 14:14:52,723 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2022-12-13 14:14:52,723 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 14:14:52,723 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:14:52,724 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:52,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:14:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:52,729 INFO L85 PathProgramCache]: Analyzing trace with hash 707396083, now seen corresponding path program 1 times [2022-12-13 14:14:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:52,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883140379] [2022-12-13 14:14:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:52,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:53,356 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 14:14:53,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:14:53,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883140379] [2022-12-13 14:14:53,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883140379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:14:53,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:14:53,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:14:53,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375627204] [2022-12-13 14:14:53,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:14:53,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:14:53,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:14:53,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:14:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:14:53,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 677 [2022-12-13 14:14:53,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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 14:14:53,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:14:53,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 677 [2022-12-13 14:14:53,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:14:53,749 INFO L130 PetriNetUnfolder]: 110/203 cut-off events. [2022-12-13 14:14:53,749 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 14:14:53,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 203 events. 110/203 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 656 event pairs, 44 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 342. Up to 148 conditions per place. [2022-12-13 14:14:53,752 INFO L137 encePairwiseOnDemand]: 669/677 looper letters, 14 selfloop transitions, 5 changer transitions 7/26 dead transitions. [2022-12-13 14:14:53,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 116 flow [2022-12-13 14:14:53,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:14:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:14:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2022-12-13 14:14:53,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4554406696208764 [2022-12-13 14:14:53,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 925 transitions. [2022-12-13 14:14:53,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 925 transitions. [2022-12-13 14:14:53,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:14:53,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 925 transitions. [2022-12-13 14:14:53,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 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 14:14:53,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 677.0) internal successors, (2708), 4 states have internal predecessors, (2708), 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 14:14:53,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 677.0) internal successors, (2708), 4 states have internal predecessors, (2708), 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 14:14:53,782 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 45 flow. Second operand 3 states and 925 transitions. [2022-12-13 14:14:53,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 116 flow [2022-12-13 14:14:53,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 26 transitions, 109 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:14:53,787 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 65 flow [2022-12-13 14:14:53,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=677, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2022-12-13 14:14:53,792 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 14:14:53,793 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 65 flow [2022-12-13 14:14:53,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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 14:14:53,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:14:53,794 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:14:53,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:14:53,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:14:53,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:14:53,795 INFO L85 PathProgramCache]: Analyzing trace with hash 454444527, now seen corresponding path program 1 times [2022-12-13 14:14:53,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:14:53,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685324869] [2022-12-13 14:14:53,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:14:53,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:14:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:14:54,748 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 14:14:54,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:14:54,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685324869] [2022-12-13 14:14:54,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685324869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:14:54,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:14:54,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:14:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607576768] [2022-12-13 14:14:54,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:14:54,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:14:54,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:14:54,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:14:54,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:14:54,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 677 [2022-12-13 14:14:54,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 298.3333333333333) internal successors, (1790), 6 states have internal predecessors, (1790), 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 14:14:54,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:14:54,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 677 [2022-12-13 14:14:54,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:14:55,649 INFO L130 PetriNetUnfolder]: 42/89 cut-off events. [2022-12-13 14:14:55,649 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-12-13 14:14:55,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 89 events. 42/89 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 239 event pairs, 9 based on Foata normal form. 8/89 useless extension candidates. Maximal degree in co-relation 145. Up to 37 conditions per place. [2022-12-13 14:14:55,650 INFO L137 encePairwiseOnDemand]: 673/677 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2022-12-13 14:14:55,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 29 transitions, 157 flow [2022-12-13 14:14:55,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:14:55,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:14:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1513 transitions. [2022-12-13 14:14:55,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4469719350073855 [2022-12-13 14:14:55,654 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1513 transitions. [2022-12-13 14:14:55,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1513 transitions. [2022-12-13 14:14:55,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:14:55,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1513 transitions. [2022-12-13 14:14:55,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 302.6) internal successors, (1513), 5 states have internal predecessors, (1513), 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 14:14:55,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 677.0) internal successors, (4062), 6 states have internal predecessors, (4062), 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 14:14:55,661 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 677.0) internal successors, (4062), 6 states have internal predecessors, (4062), 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 14:14:55,662 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 65 flow. Second operand 5 states and 1513 transitions. [2022-12-13 14:14:55,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 29 transitions, 157 flow [2022-12-13 14:14:55,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 29 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:14:55,662 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2022-12-13 14:14:55,663 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=677, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2022-12-13 14:14:55,663 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 14:14:55,663 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2022-12-13 14:14:55,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 298.3333333333333) internal successors, (1790), 6 states have internal predecessors, (1790), 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 14:14:55,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-12-13 14:14:55,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 14:14:55,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-12-13 14:14:55,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 14:14:55,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:14:55,667 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:14:55,670 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:14:55,671 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:14:55,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:14:55 BasicIcfg [2022-12-13 14:14:55,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:14:55,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:14:55,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:14:55,674 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:14:55,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:06:57" (3/4) ... [2022-12-13 14:14:55,676 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:14:55,680 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_llseek [2022-12-13 14:14:55,680 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-13 14:14:55,683 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-12-13 14:14:55,684 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 14:14:55,684 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-13 14:14:55,684 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 14:14:55,684 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:14:55,716 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:14:55,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:14:55,717 INFO L158 Benchmark]: Toolchain (without parser) took 483548.30ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 78.2MB in the beginning and 77.7MB in the end (delta: 493.9kB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2022-12-13 14:14:55,717 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:14:55,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4252.95ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 77.8MB in the beginning and 83.9MB in the end (delta: -6.1MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2022-12-13 14:14:55,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.77ms. Allocated memory is still 155.2MB. Free memory was 83.9MB in the beginning and 75.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 14:14:55,718 INFO L158 Benchmark]: Boogie Preprocessor took 29.50ms. Allocated memory is still 155.2MB. Free memory was 75.5MB in the beginning and 71.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:14:55,718 INFO L158 Benchmark]: RCFGBuilder took 740.32ms. Allocated memory is still 155.2MB. Free memory was 71.3MB in the beginning and 79.8MB in the end (delta: -8.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-13 14:14:55,718 INFO L158 Benchmark]: TraceAbstraction took 478386.05ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 78.7MB in the beginning and 81.9MB in the end (delta: -3.2MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-12-13 14:14:55,718 INFO L158 Benchmark]: Witness Printer took 43.01ms. Allocated memory is still 186.6MB. Free memory was 81.9MB in the beginning and 77.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:14:55,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4252.95ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 77.8MB in the beginning and 83.9MB in the end (delta: -6.1MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.77ms. Allocated memory is still 155.2MB. Free memory was 83.9MB in the beginning and 75.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.50ms. Allocated memory is still 155.2MB. Free memory was 75.5MB in the beginning and 71.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 740.32ms. Allocated memory is still 155.2MB. Free memory was 71.3MB in the beginning and 79.8MB in the end (delta: -8.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 478386.05ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 78.7MB in the beginning and 81.9MB in the end (delta: -3.2MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Witness Printer took 43.01ms. Allocated memory is still 186.6MB. Free memory was 81.9MB in the beginning and 77.7MB 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: 475.2s, 307 PlacesBefore, 22 PlacesAfterwards, 311 TransitionsBefore, 18 TransitionsAfterwards, 6960 CoEnabledTransitionPairs, 11 FixpointIterations, 198 TrivialSequentialCompositions, 106 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 27 ConcurrentYvCompositions, 8 ChoiceCompositions, 355 TotalNumberOfCompositions, 7704 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6144, independent: 5991, independent conditional: 0, independent unconditional: 5991, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3909, independent: 3865, independent conditional: 0, independent unconditional: 3865, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6144, independent: 2126, independent conditional: 0, independent unconditional: 2126, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 3909, unknown conditional: 0, unknown unconditional: 3909] , 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, 412 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: 478.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 475.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 321 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 146 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 0 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=1, InterpolantAutomatonStates: 8, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 14:14:55,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a429abc8-9c0a-4edd-bcef-93ed7297c566/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