./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/config/TaipanReach.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_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur --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 Taipan --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-38b53e6 [2022-11-26 01:03:33,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:03:33,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:03:33,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:03:33,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:03:33,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:03:33,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:03:33,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:03:33,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:03:33,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:03:33,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:03:33,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:03:33,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:03:33,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:03:33,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:03:33,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:03:33,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:03:33,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:03:33,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:03:33,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:03:33,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:03:33,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:03:33,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:03:33,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:03:33,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:03:33,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:03:33,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:03:33,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:03:33,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:03:33,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:03:33,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:03:33,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:03:33,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:03:33,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:03:33,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:03:33,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:03:33,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:03:33,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:03:33,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:03:33,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:03:33,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:03:33,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 01:03:33,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:03:33,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:03:33,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:03:33,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:03:33,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:03:33,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:03:33,918 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:03:33,918 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:03:33,919 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:03:33,919 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:03:33,920 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:03:33,921 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:03:33,921 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:03:33,921 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:03:33,921 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:03:33,922 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:03:33,922 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:03:33,922 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:03:33,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:03:33,924 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:03:33,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:03:33,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:03:33,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:03:33,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:03:33,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:03:33,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:03:33,926 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:03:33,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:03:33,926 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:03:33,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:03:33,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:03:33,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:03:33,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:03:33,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:03:33,928 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:03:33,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:03:33,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:03:33,929 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:03:33,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:03:33,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:03:33,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:03:33,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30012893862a7e15af8bbbaf0239dbd2e8b93523943e1ee06536b5f9fb75a514 [2022-11-26 01:03:34,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:03:34,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:03:34,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:03:34,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:03:34,297 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:03:34,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-11-26 01:03:37,395 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:03:38,013 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:03:38,016 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-11-26 01:03:38,065 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/data/6d7fb9bf5/dd93d5d9c69b4bcc896ff9a934f9c14f/FLAGf996a09ce [2022-11-26 01:03:38,082 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/data/6d7fb9bf5/dd93d5d9c69b4bcc896ff9a934f9c14f [2022-11-26 01:03:38,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:03:38,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:03:38,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:03:38,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:03:38,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:03:38,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:03:38" (1/1) ... [2022-11-26 01:03:38,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16cc39d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:38, skipping insertion in model container [2022-11-26 01:03:38,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:03:38" (1/1) ... [2022-11-26 01:03:38,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:03:38,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:03:38,639 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_32742756-9844-4380-9b64-702996184253/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-11-26 01:03:39,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:39,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:39,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:40,263 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 01:03:40,270 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:03:40,280 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:03:40,292 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:03:40,478 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 01:03:40,485 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 01:03:40,667 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 01:03:40,958 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 01:03:40,967 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 01:03:41,046 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 01:03:41,051 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 01:03:41,410 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 01:03:41,414 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 01:03:41,418 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 01:03:41,548 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 01:03:41,549 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 01:03:41,552 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 01:03:41,553 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 01:03:41,754 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 01:03:41,801 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 01:03:41,979 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 01:03:41,984 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 01:03:42,166 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 01:03:42,360 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 01:03:42,360 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 01:03:42,360 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 01:03:43,587 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 01:03:43,588 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:03:43,592 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:03:43,597 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:03:43,601 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:03:44,268 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 01:03:44,275 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 01:03:44,289 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 01:03:44,299 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 01:03:44,299 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 01:03:44,303 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 01:03:44,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:03:44,346 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:03:44,361 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_32742756-9844-4380-9b64-702996184253/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i[5469,5482] [2022-11-26 01:03:44,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:03:44,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:03:44,401 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 01:03:44,401 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:03:44,402 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:03:44,402 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:03:44,412 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 01:03:44,413 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 01:03:44,417 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 01:03:44,435 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 01:03:44,440 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 01:03:44,443 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 01:03:44,444 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 01:03:44,457 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 01:03:44,457 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 01:03:44,458 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 01:03:44,462 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 01:03:44,463 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 01:03:44,463 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 01:03:44,464 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 01:03:44,554 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 01:03:44,557 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 01:03:44,563 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 01:03:44,564 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 01:03:44,568 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 01:03:44,573 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 01:03:44,573 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 01:03:44,573 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 01:03:44,892 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 01:03:44,893 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:03:44,898 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:03:44,909 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:03:44,914 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:03:44,968 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 01:03:44,970 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 01:03:44,971 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 01:03:44,975 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 01:03:44,975 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 01:03:44,975 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 01:03:44,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:03:45,501 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:03:45,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45 WrapperNode [2022-11-26 01:03:45,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:03:45,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:03:45,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:03:45,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:03:45,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,727 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-11-26 01:03:45,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:03:45,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:03:45,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:03:45,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:03:45,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,804 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:03:45,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:03:45,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:03:45,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:03:45,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (1/1) ... [2022-11-26 01:03:45,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:03:45,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:03:45,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:03:45,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:03:45,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:03:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 01:03:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-26 01:03:45,964 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-26 01:03:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:03:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:03:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:03:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 01:03:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:03:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:03:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-11-26 01:03:45,965 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-11-26 01:03:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 01:03:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:03:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 01:03:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 01:03:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:03:45,968 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 01:03:46,496 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:03:46,501 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:03:46,939 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:03:46,972 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:03:46,972 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 01:03:46,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:03:46 BoogieIcfgContainer [2022-11-26 01:03:46,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:03:46,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:03:46,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:03:46,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:03:46,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:03:38" (1/3) ... [2022-11-26 01:03:46,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ce4435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:03:46, skipping insertion in model container [2022-11-26 01:03:46,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:45" (2/3) ... [2022-11-26 01:03:46,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ce4435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:03:46, skipping insertion in model container [2022-11-26 01:03:46,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:03:46" (3/3) ... [2022-11-26 01:03:46,984 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_nvram_unlocked_ioctl.i [2022-11-26 01:03:46,993 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 01:03:47,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:03:47,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:03:47,005 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 01:03:47,112 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 01:03:47,147 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 01:03:47,162 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 363 places, 367 transitions, 750 flow [2022-11-26 01:03:47,165 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 363 places, 367 transitions, 750 flow [2022-11-26 01:03:47,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 367 transitions, 750 flow [2022-11-26 01:03:47,330 INFO L130 PetriNetUnfolder]: 11/365 cut-off events. [2022-11-26 01:03:47,330 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 01:03:47,340 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 346 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. [2022-11-26 01:03:47,347 INFO L119 LiptonReduction]: Number of co-enabled transitions 12372 [2022-11-26 01:05:05,388 WARN L233 SmtUtils]: Spent 16.19s on a formula simplification that was a NOOP. DAG size: 444 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:05:20,921 WARN L233 SmtUtils]: Spent 15.52s on a formula simplification that was a NOOP. DAG size: 424 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:05:44,581 WARN L233 SmtUtils]: Spent 23.66s on a formula simplification that was a NOOP. DAG size: 447 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:06:07,192 WARN L233 SmtUtils]: Spent 22.60s on a formula simplification that was a NOOP. DAG size: 427 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:08:58,534 WARN L233 SmtUtils]: Spent 2.86m on a formula simplification. DAG size of input: 526 DAG size of output: 519 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:10:11,851 WARN L233 SmtUtils]: Spent 1.22m 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) [2022-11-26 01:12:50,402 WARN L233 SmtUtils]: Spent 2.64m on a formula simplification. DAG size of input: 537 DAG size of output: 530 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:13:39,060 WARN L233 SmtUtils]: Spent 48.65s on a formula simplification that was a NOOP. DAG size: 516 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:13:39,064 INFO L134 LiptonReduction]: Checked pairs total: 12511 [2022-11-26 01:13:39,065 INFO L136 LiptonReduction]: Total number of compositions: 405 [2022-11-26 01:13:39,091 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 24 transitions, 64 flow [2022-11-26 01:13:39,126 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54 states, 52 states have (on average 2.673076923076923) internal successors, (139), 53 states have internal predecessors, (139), 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) [2022-11-26 01:13:39,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:13:39,147 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=FINITE_AUTOMATA, 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;@63677462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:13:39,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-26 01:13:39,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 2.673076923076923) internal successors, (139), 53 states have internal predecessors, (139), 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) [2022-11-26 01:13:39,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:13:39,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:13:39,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 01:13:39,157 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)] === [2022-11-26 01:13:39,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:13:39,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1881609310, now seen corresponding path program 1 times [2022-11-26 01:13:39,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:13:39,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832468413] [2022-11-26 01:13:39,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:13:39,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:13:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:13:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:13:40,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:13:40,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832468413] [2022-11-26 01:13:40,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832468413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:13:40,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:13:40,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:13:40,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751365622] [2022-11-26 01:13:40,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:13:40,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:13:40,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:13:40,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:13:40,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:13:40,267 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 2.673076923076923) internal successors, (139), 53 states have internal predecessors, (139), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:13:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:13:40,561 INFO L93 Difference]: Finished difference Result 64 states and 142 transitions. [2022-11-26 01:13:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:13:40,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 01:13:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:13:40,575 INFO L225 Difference]: With dead ends: 64 [2022-11-26 01:13:40,576 INFO L226 Difference]: Without dead ends: 52 [2022-11-26 01:13:40,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:13:40,588 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:13:40,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 01:13:40,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-26 01:13:40,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-26 01:13:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 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) [2022-11-26 01:13:40,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 109 transitions. [2022-11-26 01:13:40,634 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 109 transitions. Word has length 6 [2022-11-26 01:13:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:13:40,635 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 109 transitions. [2022-11-26 01:13:40,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:13:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 109 transitions. [2022-11-26 01:13:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 01:13:40,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:13:40,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:13:40,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:13:40,637 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)] === [2022-11-26 01:13:40,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:13:40,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1799655108, now seen corresponding path program 1 times [2022-11-26 01:13:40,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:13:40,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113628397] [2022-11-26 01:13:40,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:13:40,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:13:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:13:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:13:41,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:13:41,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113628397] [2022-11-26 01:13:41,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113628397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:13:41,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:13:41,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:13:41,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702152507] [2022-11-26 01:13:41,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:13:41,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:13:41,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:13:41,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:13:41,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:13:41,677 INFO L87 Difference]: Start difference. First operand 52 states and 109 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:13:42,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:13:42,486 INFO L93 Difference]: Finished difference Result 49 states and 100 transitions. [2022-11-26 01:13:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:13:42,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 01:13:42,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:13:42,488 INFO L225 Difference]: With dead ends: 49 [2022-11-26 01:13:42,488 INFO L226 Difference]: Without dead ends: 49 [2022-11-26 01:13:42,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:13:42,489 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:13:42,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 01:13:42,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-26 01:13:42,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2022-11-26 01:13:42,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 2.088888888888889) internal successors, (94), 45 states have internal predecessors, (94), 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) [2022-11-26 01:13:42,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 94 transitions. [2022-11-26 01:13:42,501 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 94 transitions. Word has length 7 [2022-11-26 01:13:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:13:42,502 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 94 transitions. [2022-11-26 01:13:42,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:13:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 94 transitions. [2022-11-26 01:13:42,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 01:13:42,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:13:42,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:13:42,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:13:42,505 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)] === [2022-11-26 01:13:42,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:13:42,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1451438452, now seen corresponding path program 1 times [2022-11-26 01:13:42,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:13:42,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43274907] [2022-11-26 01:13:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:13:42,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:13:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:13:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:13:43,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:13:43,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43274907] [2022-11-26 01:13:43,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43274907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:13:43,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:13:43,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:13:43,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526890495] [2022-11-26 01:13:43,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:13:43,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:13:43,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:13:43,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:13:43,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:13:43,745 INFO L87 Difference]: Start difference. First operand 46 states and 94 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:13:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:13:44,338 INFO L93 Difference]: Finished difference Result 55 states and 107 transitions. [2022-11-26 01:13:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:13:44,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 01:13:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:13:44,341 INFO L225 Difference]: With dead ends: 55 [2022-11-26 01:13:44,341 INFO L226 Difference]: Without dead ends: 21 [2022-11-26 01:13:44,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:13:44,343 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:13:44,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 01:13:44,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-26 01:13:44,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-26 01:13:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 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) [2022-11-26 01:13:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 33 transitions. [2022-11-26 01:13:44,346 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 33 transitions. Word has length 9 [2022-11-26 01:13:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:13:44,346 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 33 transitions. [2022-11-26 01:13:44,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:13:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2022-11-26 01:13:44,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 01:13:44,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:13:44,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:13:44,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:13:44,352 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)] === [2022-11-26 01:13:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:13:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1403506872, now seen corresponding path program 2 times [2022-11-26 01:13:44,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:13:44,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286300161] [2022-11-26 01:13:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:13:44,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:13:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:13:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:13:45,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:13:45,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286300161] [2022-11-26 01:13:45,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286300161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:13:45,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:13:45,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:13:45,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666940752] [2022-11-26 01:13:45,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:13:45,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 01:13:45,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:13:45,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 01:13:45,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:13:45,981 INFO L87 Difference]: Start difference. First operand 21 states and 33 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:13:47,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:13:47,101 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2022-11-26 01:13:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:13:47,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 01:13:47,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:13:47,102 INFO L225 Difference]: With dead ends: 15 [2022-11-26 01:13:47,102 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 01:13:47,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:13:47,103 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:13:47,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 01:13:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 01:13:47,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 01:13:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-26 01:13:47,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 01:13:47,105 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-11-26 01:13:47,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:13:47,105 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 01:13:47,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:13:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 01:13:47,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 01:13:47,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-26 01:13:47,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-26 01:13:47,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-26 01:13:47,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-26 01:13:47,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 01:13:47,111 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-11-26 01:13:47,116 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 01:13:47,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:13:47,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:13:47 BasicIcfg [2022-11-26 01:13:47,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:13:47,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:13:47,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:13:47,122 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:13:47,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:03:46" (3/4) ... [2022-11-26 01:13:47,125 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 01:13:47,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_read_nvram [2022-11-26 01:13:47,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-26 01:13:47,140 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-11-26 01:13:47,140 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-26 01:13:47,141 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-26 01:13:47,141 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 01:13:47,141 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 01:13:47,195 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 01:13:47,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:13:47,196 INFO L158 Benchmark]: Toolchain (without parser) took 609107.45ms. Allocated memory was 174.1MB in the beginning and 274.7MB in the end (delta: 100.7MB). Free memory was 132.0MB in the beginning and 159.9MB in the end (delta: -28.0MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2022-11-26 01:13:47,196 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:13:47,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7409.27ms. Allocated memory was 174.1MB in the beginning and 228.6MB in the end (delta: 54.5MB). Free memory was 131.5MB in the beginning and 143.8MB in the end (delta: -12.3MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. [2022-11-26 01:13:47,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 227.74ms. Allocated memory is still 228.6MB. Free memory was 143.8MB in the beginning and 134.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 01:13:47,197 INFO L158 Benchmark]: Boogie Preprocessor took 80.93ms. Allocated memory is still 228.6MB. Free memory was 134.4MB in the beginning and 130.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:13:47,198 INFO L158 Benchmark]: RCFGBuilder took 1162.64ms. Allocated memory is still 228.6MB. Free memory was 130.2MB in the beginning and 123.7MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-26 01:13:47,198 INFO L158 Benchmark]: TraceAbstraction took 600143.69ms. Allocated memory was 228.6MB in the beginning and 274.7MB in the end (delta: 46.1MB). Free memory was 122.6MB in the beginning and 164.1MB in the end (delta: -41.5MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-11-26 01:13:47,198 INFO L158 Benchmark]: Witness Printer took 73.76ms. Allocated memory is still 274.7MB. Free memory was 164.1MB in the beginning and 159.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:13:47,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 7409.27ms. Allocated memory was 174.1MB in the beginning and 228.6MB in the end (delta: 54.5MB). Free memory was 131.5MB in the beginning and 143.8MB in the end (delta: -12.3MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 227.74ms. Allocated memory is still 228.6MB. Free memory was 143.8MB in the beginning and 134.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.93ms. Allocated memory is still 228.6MB. Free memory was 134.4MB in the beginning and 130.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1162.64ms. Allocated memory is still 228.6MB. Free memory was 130.2MB in the beginning and 123.7MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 600143.69ms. Allocated memory was 228.6MB in the beginning and 274.7MB in the end (delta: 46.1MB). Free memory was 122.6MB in the beginning and 164.1MB in the end (delta: -41.5MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 73.76ms. Allocated memory is still 274.7MB. Free memory was 164.1MB in the beginning and 159.9MB 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: 591.9s, 363 PlacesBefore, 26 PlacesAfterwards, 367 TransitionsBefore, 24 TransitionsAfterwards, 12372 CoEnabledTransitionPairs, 10 FixpointIterations, 201 TrivialSequentialCompositions, 154 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 30 ConcurrentYvCompositions, 6 ChoiceCompositions, 405 TotalNumberOfCompositions, 12511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10566, independent: 10428, independent conditional: 0, independent unconditional: 10428, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8767, independent: 8707, independent conditional: 0, independent unconditional: 8707, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8767, independent: 8688, independent conditional: 0, independent unconditional: 8688, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 79, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6975, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 440, dependent conditional: 0, dependent unconditional: 440, unknown: 6442, unknown conditional: 0, unknown unconditional: 6442] ], Cache Queries: [ total: 10566, independent: 1721, independent conditional: 0, independent unconditional: 1721, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 8782, unknown conditional: 0, unknown unconditional: 8782] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 3, Unknown conditional cache size: 0, Unknown unconditional cache size: 3 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 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. OverallTime: 600.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 592.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 80 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 0 mSDtfsCounter, 185 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 267 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! [2022-11-26 01:13:47,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32742756-9844-4380-9b64-702996184253/bin/utaipan-ByfvJB40ur/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