./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/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_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 --- 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 01:01:37,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:01:37,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:01:37,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:01:37,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:01:37,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:01:37,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:01:37,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:01:37,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:01:37,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:01:37,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:01:37,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:01:37,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:01:37,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:01:37,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:01:37,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:01:37,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:01:37,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:01:37,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:01:37,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:01:37,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:01:37,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:01:37,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:01:37,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:01:37,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:01:37,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:01:37,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:01:37,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:01:37,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:01:37,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:01:37,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:01:37,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:01:37,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:01:37,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:01:37,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:01:37,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:01:37,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:01:37,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:01:37,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:01:37,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:01:37,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:01:37,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 01:01:38,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:01:38,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:01:38,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:01:38,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:01:38,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:01:38,017 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:01:38,017 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:01:38,018 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:01:38,018 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:01:38,018 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:01:38,018 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:01:38,019 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:01:38,019 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:01:38,019 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:01:38,019 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:01:38,019 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:01:38,020 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:01:38,020 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:01:38,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:01:38,021 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:01:38,021 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:01:38,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:01:38,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:01:38,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:01:38,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:01:38,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:01:38,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:01:38,022 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:01:38,023 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:01:38,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:01:38,023 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:01:38,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:01:38,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:01:38,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:01:38,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:01:38,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:01:38,024 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:01:38,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:01:38,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:01:38,025 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:01:38,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:01:38,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:01:38,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:01:38,026 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_a7e5ec10-2866-43e6-a479-e115ae9925bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 [2022-11-26 01:01:38,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:01:38,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:01:38,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:01:38,377 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:01:38,378 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:01:38,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-26 01:01:41,403 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:01:42,014 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:01:42,014 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-26 01:01:42,065 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/data/3a17cfa80/539d91eb539b403ea46570f315f4a054/FLAG3c0030da1 [2022-11-26 01:01:42,086 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/data/3a17cfa80/539d91eb539b403ea46570f315f4a054 [2022-11-26 01:01:42,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:01:42,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:01:42,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:01:42,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:01:42,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:01:42,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:01:42" (1/1) ... [2022-11-26 01:01:42,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b0c74e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:42, skipping insertion in model container [2022-11-26 01:01:42,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:01:42" (1/1) ... [2022-11-26 01:01:42,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:01:42,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:01:42,604 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_a7e5ec10-2866-43e6-a479-e115ae9925bc/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-11-26 01:01:43,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,196 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,201 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:43,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:43,865 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 01:01:43,870 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:01:43,875 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:01:43,887 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:01:44,022 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 01:01:44,029 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 01:01:44,194 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 01:01:44,484 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 01:01:44,493 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 01:01:44,568 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 01:01:44,571 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 01:01:44,882 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 01:01:44,885 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 01:01:44,889 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 01:01:44,993 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 01:01:44,994 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 01:01:44,998 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 01:01:44,998 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 01:01:45,173 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 01:01:45,219 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 01:01:45,426 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 01:01:45,432 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 01:01:45,659 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 01:01:45,882 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 01:01:45,882 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 01:01:45,883 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 01:01:47,157 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 01:01:47,157 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:01:47,162 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:01:47,167 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:01:47,172 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:01:47,906 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 01:01:47,919 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 01:01:47,928 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 01:01:47,940 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 01:01:47,941 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 01:01:47,945 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 01:01:47,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:01:48,002 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:01:48,028 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_a7e5ec10-2866-43e6-a479-e115ae9925bc/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-11-26 01:01:48,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:01:48,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:01:48,086 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 01:01:48,086 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:01:48,087 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:01:48,087 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 01:01:48,092 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 01:01:48,093 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 01:01:48,097 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 01:01:48,141 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 01:01:48,143 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 01:01:48,145 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 01:01:48,146 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 01:01:48,155 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 01:01:48,155 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 01:01:48,156 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 01:01:48,160 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 01:01:48,160 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 01:01:48,160 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 01:01:48,161 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 01:01:48,170 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 01:01:48,172 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 01:01:48,178 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 01:01:48,179 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 01:01:48,183 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 01:01:48,187 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 01:01:48,188 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 01:01:48,188 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 01:01:48,432 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 01:01:48,433 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:01:48,437 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:01:48,447 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:01:48,453 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 01:01:48,506 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 01:01:48,509 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 01:01:48,511 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 01:01:48,514 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 01:01:48,514 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 01:01:48,515 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 01:01:48,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:01:49,082 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:01:49,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49 WrapperNode [2022-11-26 01:01:49,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:01:49,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:01:49,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:01:49,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:01:49,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,271 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 318 [2022-11-26 01:01:49,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:01:49,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:01:49,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:01:49,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:01:49,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,318 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:01:49,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:01:49,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:01:49,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:01:49,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (1/1) ... [2022-11-26 01:01:49,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:01:49,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:01:49,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:01:49,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:01:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:01:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 01:01:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:01:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:01:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:01:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 01:01:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:01:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:01:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:01:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 01:01:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-11-26 01:01:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-11-26 01:01:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:01:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-26 01:01:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-26 01:01:49,413 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 01:01:49,930 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:01:49,932 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:01:50,431 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:01:50,441 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:01:50,441 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 01:01:50,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:50 BoogieIcfgContainer [2022-11-26 01:01:50,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:01:50,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:01:50,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:01:50,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:01:50,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:01:42" (1/3) ... [2022-11-26 01:01:50,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5965d345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:01:50, skipping insertion in model container [2022-11-26 01:01:50,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:49" (2/3) ... [2022-11-26 01:01:50,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5965d345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:01:50, skipping insertion in model container [2022-11-26 01:01:50,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:50" (3/3) ... [2022-11-26 01:01:50,453 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-26 01:01:50,461 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 01:01:50,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:01:50,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 01:01:50,473 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 01:01:50,564 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 01:01:50,608 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 01:01:50,631 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 373 transitions, 762 flow [2022-11-26 01:01:50,639 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 373 transitions, 762 flow [2022-11-26 01:01:50,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 365 places, 373 transitions, 762 flow [2022-11-26 01:01:50,883 INFO L130 PetriNetUnfolder]: 15/371 cut-off events. [2022-11-26 01:01:50,883 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 01:01:50,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 371 events. 15/371 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 379 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 297. Up to 5 conditions per place. [2022-11-26 01:01:50,907 INFO L119 LiptonReduction]: Number of co-enabled transitions 13830 [2022-11-26 01:02:39,444 WARN L233 SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 339 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:03:14,046 WARN L233 SmtUtils]: Spent 26.07s on a formula simplification that was a NOOP. DAG size: 470 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:03:29,868 WARN L233 SmtUtils]: Spent 15.81s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:04:33,321 WARN L233 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 476 DAG size of output: 474 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:05:04,232 WARN L233 SmtUtils]: Spent 30.90s on a formula simplification that was a NOOP. DAG size: 425 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:07:09,255 WARN L233 SmtUtils]: Spent 2.08m on a formula simplification. DAG size of input: 521 DAG size of output: 517 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:08:15,118 WARN L233 SmtUtils]: Spent 1.10m 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 01:10:38,545 WARN L233 SmtUtils]: Spent 2.39m on a formula simplification. DAG size of input: 532 DAG size of output: 528 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:11:50,625 WARN L233 SmtUtils]: Spent 1.20m 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 01:11:50,629 INFO L134 LiptonReduction]: Checked pairs total: 15270 [2022-11-26 01:11:50,629 INFO L136 LiptonReduction]: Total number of compositions: 436 [2022-11-26 01:11:50,636 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 70 flow [2022-11-26 01:11:50,655 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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 01:11:50,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:11:50,692 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;@15242e5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:11:50,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-26 01:11:50,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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 01:11:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:11:50,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:50,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:11:50,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-26 01:11:50,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:50,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1358160737, now seen corresponding path program 1 times [2022-11-26 01:11:50,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:50,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323273170] [2022-11-26 01:11:50,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:50,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:51,947 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 01:11:51,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:11:51,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323273170] [2022-11-26 01:11:51,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323273170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:11:51,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:11:51,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:11:51,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580375603] [2022-11-26 01:11:51,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:11:51,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:11:51,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:11:51,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:11:51,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:51,993 INFO L87 Difference]: Start difference. First operand has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 01:11:52,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:52,309 INFO L93 Difference]: Finished difference Result 60 states and 146 transitions. [2022-11-26 01:11:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:11:52,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-26 01:11:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:52,324 INFO L225 Difference]: With dead ends: 60 [2022-11-26 01:11:52,324 INFO L226 Difference]: Without dead ends: 60 [2022-11-26 01:11:52,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 01:11:52,334 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:52,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 01:11:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-26 01:11:52,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-26 01:11:52,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 2.56140350877193) internal successors, (146), 59 states have internal predecessors, (146), 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 01:11:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 146 transitions. [2022-11-26 01:11:52,383 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 146 transitions. Word has length 5 [2022-11-26 01:11:52,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:52,384 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 146 transitions. [2022-11-26 01:11:52,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 01:11:52,385 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 146 transitions. [2022-11-26 01:11:52,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:11:52,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:52,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:11:52,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:11:52,388 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-26 01:11:52,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1358160738, now seen corresponding path program 1 times [2022-11-26 01:11:52,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:52,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394789034] [2022-11-26 01:11:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:52,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:53,176 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 01:11:53,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:11:53,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394789034] [2022-11-26 01:11:53,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394789034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:11:53,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:11:53,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:11:53,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258851801] [2022-11-26 01:11:53,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:11:53,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:11:53,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:11:53,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:11:53,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:53,189 INFO L87 Difference]: Start difference. First operand 60 states and 146 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 01:11:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:53,450 INFO L93 Difference]: Finished difference Result 48 states and 113 transitions. [2022-11-26 01:11:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:11:53,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-26 01:11:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:53,452 INFO L225 Difference]: With dead ends: 48 [2022-11-26 01:11:53,452 INFO L226 Difference]: Without dead ends: 48 [2022-11-26 01:11:53,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 01:11:53,454 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:53,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 01:11:53,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-26 01:11:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-26 01:11:53,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 47 states have internal predecessors, (113), 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 01:11:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 113 transitions. [2022-11-26 01:11:53,465 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 113 transitions. Word has length 5 [2022-11-26 01:11:53,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:53,465 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 113 transitions. [2022-11-26 01:11:53,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 01:11:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 113 transitions. [2022-11-26 01:11:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:11:53,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:53,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:11:53,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:11:53,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-26 01:11:53,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:53,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1358160739, now seen corresponding path program 1 times [2022-11-26 01:11:53,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:53,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367381801] [2022-11-26 01:11:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:53,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:53,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:11:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:53,721 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:11:53,722 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:11:53,722 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-26 01:11:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-11-26 01:11:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-11-26 01:11:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-26 01:11:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-26 01:11:53,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-26 01:11:53,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-26 01:11:53,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-26 01:11:53,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-26 01:11:53,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-26 01:11:53,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:11:53,727 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 01:11:53,733 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 01:11:53,733 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:11:53,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:11:53 BasicIcfg [2022-11-26 01:11:53,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:11:53,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:11:53,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:11:53,801 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:11:53,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:50" (3/4) ... [2022-11-26 01:11:53,804 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 01:11:53,882 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 01:11:53,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:11:53,883 INFO L158 Benchmark]: Toolchain (without parser) took 611790.72ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 99.3MB in the beginning and 67.6MB in the end (delta: 31.6MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. [2022-11-26 01:11:53,884 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:53,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6987.51ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 99.3MB in the beginning and 140.7MB in the end (delta: -41.4MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. [2022-11-26 01:11:53,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 191.54ms. Allocated memory is still 234.9MB. Free memory was 140.7MB in the beginning and 131.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-26 01:11:53,885 INFO L158 Benchmark]: Boogie Preprocessor took 51.19ms. Allocated memory is still 234.9MB. Free memory was 131.3MB in the beginning and 127.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:11:53,885 INFO L158 Benchmark]: RCFGBuilder took 1115.70ms. Allocated memory is still 234.9MB. Free memory was 127.1MB in the beginning and 84.1MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-26 01:11:53,885 INFO L158 Benchmark]: TraceAbstraction took 603354.52ms. Allocated memory is still 234.9MB. Free memory was 84.1MB in the beginning and 77.1MB in the end (delta: 7.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:53,886 INFO L158 Benchmark]: Witness Printer took 81.82ms. Allocated memory is still 234.9MB. Free memory was 77.1MB in the beginning and 67.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-26 01:11:53,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6987.51ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 99.3MB in the beginning and 140.7MB in the end (delta: -41.4MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 191.54ms. Allocated memory is still 234.9MB. Free memory was 140.7MB in the beginning and 131.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.19ms. Allocated memory is still 234.9MB. Free memory was 131.3MB in the beginning and 127.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1115.70ms. Allocated memory is still 234.9MB. Free memory was 127.1MB in the beginning and 84.1MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 603354.52ms. Allocated memory is still 234.9MB. Free memory was 84.1MB in the beginning and 77.1MB in the end (delta: 7.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Witness Printer took 81.82ms. Allocated memory is still 234.9MB. Free memory was 77.1MB in the beginning and 67.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 600.0s, 365 PlacesBefore, 30 PlacesAfterwards, 373 TransitionsBefore, 27 TransitionsAfterwards, 13830 CoEnabledTransitionPairs, 10 FixpointIterations, 203 TrivialSequentialCompositions, 175 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 31 ConcurrentYvCompositions, 11 ChoiceCompositions, 436 TotalNumberOfCompositions, 15270 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13204, independent: 13068, independent conditional: 0, independent unconditional: 13068, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10312, independent: 10271, independent conditional: 0, independent unconditional: 10271, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10312, independent: 10244, independent conditional: 0, independent unconditional: 10244, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4559, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 255, dependent conditional: 0, dependent unconditional: 255, unknown: 4243, unknown conditional: 0, unknown unconditional: 4243] ], Cache Queries: [ total: 13204, independent: 2797, independent conditional: 0, independent unconditional: 2797, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 10320, unknown conditional: 0, unknown unconditional: 10320] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - 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 - CounterExampleResult [Line: 6694]: integer overflow possible integer overflow possible We found a FailurePath: [L246] 0 unsigned long jiffies; [L6519] 0 const unsigned int default_alloc_size = 4; [L6686] 0 static struct mutex nvram_mutex = { 1, 0 }; [L6687] 0 static ssize_t nvram_len; [L6762-L6768] 0 struct file_operations nvram_fops = { .owner = ((struct module *)0), .llseek = nvram_llseek, .read = read_nvram, .write = write_nvram, .unlocked_ioctl = nvram_unlocked_ioctl, }; [L6769-L6773] 0 static struct miscdevice nvram_dev = { 144, "nvram", &nvram_fops }; [L6792] 0 int (* _whoop_init)(void) = nvram_init; [L6793] 0 void (* _whoop_exit)(void) = nvram_cleanup; [L6794] 0 struct inode *whoop_inode_0; [L6795] 0 struct file *whoop_file_0; [L6796] 0 struct inode *whoop_inode_1; [L6797] 0 struct file *whoop_file_1; [L6798] 0 struct inode *whoop_inode_2; [L6799] 0 struct file *whoop_file_2; [L6800] 0 struct inode *whoop_inode_3; [L6801] 0 struct file *whoop_file_3; [L6802] 0 struct inode *whoop_inode_4; [L6803] 0 struct file *whoop_file_4; [L6804] 0 struct pci_dev *whoop_pci_dev; [L6805] 0 char *whoop_buf; [L6806] 0 struct platform_device *whoop_platform_device; [L6807] 0 struct vm_area_struct *whoop_vm_area_struct; [L6808] 0 struct cx_dev *whoop_cx_dev; [L6809] 0 poll_table *whoop_poll_table; [L6810] 0 loff_t *whoop_loff_t; [L6811] 0 int whoop_int; [L6839] 0 whoop_inode_0 = (struct inode *) malloc(sizeof(struct inode)) [L6840] 0 whoop_file_0 = (struct file *) malloc(sizeof(struct file)) [L6841] 0 whoop_inode_1 = (struct inode *) malloc(sizeof(struct inode)) [L6842] 0 whoop_file_1 = (struct file *) malloc(sizeof(struct file)) [L6843] 0 whoop_inode_2 = (struct inode *) malloc(sizeof(struct inode)) [L6844] 0 whoop_file_2 = (struct file *) malloc(sizeof(struct file)) [L6845] 0 whoop_inode_3 = (struct inode *) malloc(sizeof(struct inode)) [L6846] 0 whoop_file_3 = (struct file *) malloc(sizeof(struct file)) [L6847] 0 whoop_inode_4 = (struct inode *) malloc(sizeof(struct inode)) [L6848] 0 whoop_file_4 = (struct file *) malloc(sizeof(struct file)) [L6849] 0 whoop_pci_dev = (struct pci_dev *) malloc(sizeof(struct pci_dev)) [L6850] 0 whoop_buf = (char *) malloc(sizeof(char)) [L6851] 0 whoop_platform_device = (struct platform_device *) malloc(sizeof(struct platform_device)) [L6852] 0 whoop_vm_area_struct = (struct vm_area_struct *) malloc(sizeof(struct vm_area_struct)) [L6853] 0 whoop_cx_dev = (struct cx_dev *) malloc(sizeof(struct cx_dev)) [L6854] 0 whoop_poll_table = (poll_table *) malloc(sizeof(poll_table)) [L6855] 0 whoop_loff_t = (loff_t *) malloc(sizeof(loff_t)) [L6856] 0 whoop_int = __VERIFIER_nondet_int() [L6857] CALL 0 assume_abort_if_not(whoop_int >= 0) [L170] COND FALSE 0 !(!cond) [L6857] RET 0 assume_abort_if_not(whoop_int >= 0) [L6858] CALL, EXPR 0 _whoop_init() [L6776] 0 int ret = 0; [L6777-L6778] CALL 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6647] 0 return __VERIFIER_nondet_int(); [L6777-L6778] RET 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6779] CALL, EXPR 0 misc_register(&nvram_dev) [L6621] 0 return __VERIFIER_nondet_int(); [L6779] RET, EXPR 0 misc_register(&nvram_dev) [L6779] 0 ret = misc_register(&nvram_dev) [L6780] COND TRUE 0 ret != 0 [L6786] 0 return ret; [L6858] RET, EXPR 0 _whoop_init() [L6858] 0 int _whoop_init_result = _whoop_init(); [L6859] 0 pthread_t pthread_t_write_nvram; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0)) VAL [={-1:4}, ={-1:5}, _whoop_init_result=15, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0))=13, pthread_t_nvram_llseek={10:0}, pthread_t_write_nvram={11:0}, whoop_buf={-14:0}, whoop_cx_dev={-13:0}, whoop_file_0={-7:0}, whoop_file_1={-9:0}, whoop_file_2={-11:0}, whoop_file_3={-12:0}, whoop_file_4={-6:0}, whoop_inode_0={-17:0}, whoop_inode_1={-19:0}, whoop_inode_2={-16:0}, whoop_inode_3={-10:0}, whoop_inode_4={-4:0}, whoop_int=1, whoop_loff_t={-3:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-15:0}, whoop_poll_table={-18:0}, whoop_vm_area_struct={-8:0}] [L6862] FCALL, FORK 0 pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0)) VAL [={-1:4}, ={-1:5}, _whoop_init_result=15, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0))=14, pthread_t_nvram_llseek={10:0}, pthread_t_write_nvram={11:0}, whoop_buf={-14:0}, whoop_cx_dev={-13:0}, whoop_file_0={-7:0}, whoop_file_1={-9:0}, whoop_file_2={-11:0}, whoop_file_3={-12:0}, whoop_file_4={-6:0}, whoop_inode_0={-17:0}, whoop_inode_1={-19:0}, whoop_inode_2={-16:0}, whoop_inode_3={-10:0}, whoop_inode_4={-4:0}, whoop_int=1, whoop_loff_t={-3:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-15:0}, whoop_poll_table={-18:0}, whoop_vm_area_struct={-8:0}] [L6829] CALL 2 nvram_llseek(whoop_file_3, __VERIFIER_nondet_long(), whoop_int) [L6691] 2 case 0: [L6693] 2 case 1: [L6694] EXPR 2 file->f_pos [L6694] 2 offset += file->f_pos VAL [={-1:4}, ={-1:5}, \old(offset)=0, \old(origin)=1, default_alloc_size=4, file={-12:0}, file={-12:0}, file->f_pos=-9223372036854775809, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-14:0}, whoop_cx_dev={-13:0}, whoop_file_0={-7:0}, whoop_file_1={-9:0}, whoop_file_2={-11:0}, whoop_file_3={-12:0}, whoop_file_4={-6:0}, whoop_inode_0={-17:0}, whoop_inode_1={-19:0}, whoop_inode_2={-16:0}, whoop_inode_3={-10:0}, whoop_inode_4={-4:0}, whoop_int=1, whoop_loff_t={-3:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-15:0}, whoop_poll_table={-18:0}, whoop_vm_area_struct={-8:0}] - UnprovableResult [Line: 6861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6862]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6694]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 506 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 603.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 600.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 01:11:53,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e5ec10-2866-43e6-a479-e115ae9925bc/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)