./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/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_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 --- 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 00:08:36,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:08:36,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:08:36,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:08:36,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:08:36,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:08:36,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:08:36,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:08:36,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:08:36,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:08:36,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:08:36,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:08:36,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:08:36,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:08:36,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:08:36,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:08:36,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:08:36,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:08:36,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:08:36,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:08:36,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:08:36,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:08:36,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:08:36,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:08:36,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:08:36,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:08:36,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:08:36,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:08:36,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:08:36,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:08:36,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:08:36,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:08:36,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:08:36,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:08:36,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:08:36,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:08:36,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:08:36,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:08:36,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:08:36,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:08:36,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:08:36,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:08:36,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:08:36,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:08:36,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:08:36,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:08:36,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:08:36,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:08:36,867 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:08:36,867 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:08:36,868 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:08:36,868 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:08:36,868 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:08:36,868 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:08:36,868 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:08:36,869 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:08:36,869 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:08:36,869 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:08:36,869 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:08:36,870 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:08:36,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:08:36,871 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:08:36,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:08:36,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:08:36,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:08:36,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:08:36,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:08:36,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:08:36,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:08:36,872 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:08:36,872 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:08:36,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:08:36,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:08:36,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:08:36,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:08:36,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:08:36,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:08:36,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:08:36,874 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:08:36,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:08:36,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:08:36,875 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:08:36,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:08:36,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:08:36,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:08:36,876 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_8f751f22-6b3f-4aa7-a859-c1223f6e7384/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 423d8d6205a6cc6142dcdd2c64b72565885efc66c9127b3f2569a3e2890b0e68 [2022-11-26 00:08:37,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:08:37,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:08:37,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:08:37,235 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:08:37,236 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:08:37,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-26 00:08:40,314 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:08:40,950 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:08:40,951 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-26 00:08:41,006 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/data/1c759e850/caa2c76daf07448db1f099f9b07fd9b6/FLAGa9e73405a [2022-11-26 00:08:41,025 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/data/1c759e850/caa2c76daf07448db1f099f9b07fd9b6 [2022-11-26 00:08:41,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:08:41,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:08:41,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:08:41,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:08:41,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:08:41,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:08:41" (1/1) ... [2022-11-26 00:08:41,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112a004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:41, skipping insertion in model container [2022-11-26 00:08:41,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:08:41" (1/1) ... [2022-11-26 00:08:41,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:08:41,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:08:41,693 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_8f751f22-6b3f-4aa7-a859-c1223f6e7384/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-11-26 00:08:42,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,197 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,199 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:42,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:42,681 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 00:08:42,685 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:08:42,689 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:08:42,698 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:08:42,808 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:08:42,813 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:08:42,942 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 00:08:43,183 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:08:43,190 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:08:43,259 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 00:08:43,263 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 00:08:43,608 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 00:08:43,612 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 00:08:43,615 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 00:08:43,715 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 00:08:43,716 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:08:43,719 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 00:08:43,719 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:08:43,892 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 00:08:43,930 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 00:08:44,110 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 00:08:44,114 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 00:08:44,299 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 00:08:44,560 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 00:08:44,560 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 00:08:44,560 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 00:08:45,837 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 00:08:45,837 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:08:45,853 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:08:45,861 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:08:45,872 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:08:46,749 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 00:08:46,758 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 00:08:46,768 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 00:08:46,780 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:08:46,781 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 00:08:46,785 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:08:46,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:08:46,849 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:08:46,876 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_8f751f22-6b3f-4aa7-a859-c1223f6e7384/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i[5469,5482] [2022-11-26 00:08:46,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:08:46,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:08:46,966 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 00:08:46,967 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:08:46,968 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:08:46,969 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:08:46,983 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:08:46,986 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:08:46,993 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 00:08:47,022 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:08:47,024 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:08:47,028 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 00:08:47,029 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 00:08:47,043 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 00:08:47,043 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 00:08:47,044 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 00:08:47,052 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 00:08:47,052 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:08:47,053 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 00:08:47,053 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:08:47,067 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 00:08:47,071 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 00:08:47,079 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 00:08:47,081 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 00:08:47,087 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 00:08:47,095 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 00:08:47,095 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 00:08:47,096 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 00:08:47,327 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 00:08:47,328 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:08:47,331 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:08:47,338 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:08:47,341 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:08:47,396 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 00:08:47,398 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 00:08:47,400 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 00:08:47,402 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:08:47,403 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 00:08:47,403 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:08:47,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:08:48,121 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:08:48,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48 WrapperNode [2022-11-26 00:08:48,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:08:48,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:08:48,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:08:48,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:08:48,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,405 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 509 [2022-11-26 00:08:48,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:08:48,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:08:48,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:08:48,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:08:48,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,475 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:08:48,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:08:48,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:08:48,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:08:48,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (1/1) ... [2022-11-26 00:08:48,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:08:48,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:48,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:08:48,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f751f22-6b3f-4aa7-a859-c1223f6e7384/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:08:48,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:08:48,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:08:48,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:08:48,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:08:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:08:48,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:08:48,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:08:48,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:08:48,572 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-11-26 00:08:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-11-26 00:08:48,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:08:48,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:08:48,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:08:48,573 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-26 00:08:48,573 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-26 00:08:48,575 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 00:08:49,086 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:08:49,088 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:08:49,927 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:08:49,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:08:49,937 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:08:49,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:08:49 BoogieIcfgContainer [2022-11-26 00:08:49,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:08:49,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:08:49,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:08:49,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:08:49,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:08:41" (1/3) ... [2022-11-26 00:08:49,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67701f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:08:49, skipping insertion in model container [2022-11-26 00:08:49,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:08:48" (2/3) ... [2022-11-26 00:08:49,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67701f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:08:49, skipping insertion in model container [2022-11-26 00:08:49,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:08:49" (3/3) ... [2022-11-26 00:08:49,949 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_read_nvram.i [2022-11-26 00:08:49,957 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:08:49,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:08:49,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-26 00:08:49,968 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:08:50,124 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 00:08:50,165 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:08:50,179 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 596 places, 605 transitions, 1226 flow [2022-11-26 00:08:50,182 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 596 places, 605 transitions, 1226 flow [2022-11-26 00:08:50,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 596 places, 605 transitions, 1226 flow [2022-11-26 00:08:50,536 INFO L130 PetriNetUnfolder]: 16/603 cut-off events. [2022-11-26 00:08:50,536 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 00:08:50,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 603 events. 16/603 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 849 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 474. Up to 5 conditions per place. [2022-11-26 00:08:50,572 INFO L119 LiptonReduction]: Number of co-enabled transitions 42176 [2022-11-26 00:09:38,586 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 313 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:10:12,390 WARN L233 SmtUtils]: Spent 22.66s on a formula simplification that was a NOOP. DAG size: 439 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:10:30,716 WARN L233 SmtUtils]: Spent 18.31s on a formula simplification that was a NOOP. DAG size: 379 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:10:46,122 WARN L233 SmtUtils]: Spent 15.40s on a formula simplification that was a NOOP. DAG size: 439 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:10:57,071 WARN L233 SmtUtils]: Spent 10.94s on a formula simplification that was a NOOP. DAG size: 379 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:13:45,471 WARN L233 SmtUtils]: Spent 2.74m on a formula simplification. DAG size of input: 534 DAG size of output: 530 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:15:20,612 WARN L233 SmtUtils]: Spent 1.59m on a formula simplification that was a NOOP. DAG size: 502 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:18:59,999 WARN L233 SmtUtils]: Spent 3.66m on a formula simplification. DAG size of input: 541 DAG size of output: 537 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:19:56,324 WARN L233 SmtUtils]: Spent 56.31s on a formula simplification that was a NOOP. DAG size: 509 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:21:51,813 WARN L233 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 519 DAG size of output: 515 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:22:18,336 WARN L233 SmtUtils]: Spent 26.51s on a formula simplification that was a NOOP. DAG size: 485 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)