./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:43:14,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:43:14,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:43:14,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:43:14,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:43:14,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:43:14,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:43:14,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:43:14,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:43:14,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:43:14,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:43:14,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:43:14,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:43:14,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:43:14,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:43:14,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:43:14,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:43:14,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:43:14,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:43:14,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:43:14,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:43:14,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:43:14,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:43:14,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:43:14,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:43:14,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:43:14,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:43:14,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:43:14,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:43:14,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:43:14,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:43:14,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:43:14,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:43:14,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:43:14,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:43:14,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:43:14,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:43:14,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:43:14,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:43:14,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:43:14,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:43:14,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:43:14,299 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:43:14,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:43:14,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:43:14,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:43:14,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:43:14,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:43:14,301 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:43:14,301 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:43:14,302 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:43:14,302 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:43:14,302 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:43:14,302 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:43:14,302 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:43:14,302 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:43:14,302 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:43:14,303 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:43:14,303 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:43:14,303 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:43:14,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:43:14,304 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:43:14,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:43:14,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:43:14,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:43:14,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:43:14,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:43:14,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:43:14,305 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:43:14,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:43:14,305 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:43:14,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:43:14,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:43:14,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:43:14,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:43:14,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:43:14,307 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:43:14,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:43:14,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:43:14,307 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:43:14,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:43:14,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:43:14,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:43:14,308 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_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1941de74eb261e3f3ecbbb76e1746df74b536a1b8190d4ca9fd6a4341892fdcb [2022-12-14 14:43:14,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:43:14,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:43:14,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:43:14,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:43:14,533 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:43:14,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-14 14:43:17,086 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:43:17,438 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:43:17,439 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-14 14:43:17,471 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/data/0a53edd7f/fbf872cef90c424cb9dca75ea431c0f0/FLAG1881a7fb3 [2022-12-14 14:43:17,481 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/data/0a53edd7f/fbf872cef90c424cb9dca75ea431c0f0 [2022-12-14 14:43:17,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:43:17,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:43:17,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:43:17,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:43:17,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:43:17,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:43:17" (1/1) ... [2022-12-14 14:43:17,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3abc44bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:17, skipping insertion in model container [2022-12-14 14:43:17,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:43:17" (1/1) ... [2022-12-14 14:43:17,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:43:17,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:43:17,804 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_b0422d7f-42d0-477e-94f7-da5fc600cd68/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-14 14:43:18,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:18,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:18,648 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-14 14:43:18,651 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 14:43:18,654 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 14:43:18,659 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 14:43:18,733 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 14:43:18,737 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 14:43:18,831 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-14 14:43:19,003 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 14:43:19,009 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 14:43:19,059 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-14 14:43:19,062 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-14 14:43:19,286 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-14 14:43:19,289 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-14 14:43:19,291 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-14 14:43:19,376 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 14:43:19,376 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 14:43:19,379 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-14 14:43:19,379 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 14:43:19,524 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-14 14:43:19,557 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 14:43:19,716 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-14 14:43:19,720 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 14:43:19,870 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 14:43:20,047 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-14 14:43:20,048 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-14 14:43:20,048 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-14 14:43:20,882 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-14 14:43:20,882 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 14:43:20,885 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 14:43:20,888 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 14:43:20,890 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 14:43:21,399 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-14 14:43:21,402 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-14 14:43:21,406 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-14 14:43:21,413 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 14:43:21,413 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-14 14:43:21,416 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 14:43:21,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:43:21,447 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:43:21,469 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_b0422d7f-42d0-477e-94f7-da5fc600cd68/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i[5469,5482] [2022-12-14 14:43:21,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:43:21,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:43:21,492 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-14 14:43:21,492 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 14:43:21,493 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 14:43:21,493 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-14 14:43:21,496 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 14:43:21,497 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-14 14:43:21,498 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-14 14:43:21,506 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 14:43:21,507 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-14 14:43:21,509 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-14 14:43:21,509 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-14 14:43:21,515 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-14 14:43:21,515 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-14 14:43:21,515 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-14 14:43:21,518 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-14 14:43:21,518 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 14:43:21,518 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-14 14:43:21,518 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-14 14:43:21,524 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-14 14:43:21,526 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 14:43:21,530 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-14 14:43:21,530 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 14:43:21,533 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 14:43:21,536 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-14 14:43:21,536 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-14 14:43:21,537 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-14 14:43:21,688 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-14 14:43:21,688 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 14:43:21,690 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 14:43:21,692 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 14:43:21,694 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-14 14:43:21,725 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-14 14:43:21,726 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-14 14:43:21,727 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-14 14:43:21,728 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 14:43:21,728 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-14 14:43:21,729 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 14:43:21,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:43:22,113 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:43:22,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22 WrapperNode [2022-12-14 14:43:22,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:43:22,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:43:22,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:43:22,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:43:22,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,216 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 19, statements flattened = 316 [2022-12-14 14:43:22,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:43:22,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:43:22,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:43:22,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:43:22,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:43:22,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:43:22,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:43:22,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:43:22,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (1/1) ... [2022-12-14 14:43:22,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:43:22,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:43:22,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:43:22,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:43:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:43:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:43:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-14 14:43:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-14 14:43:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:43:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:43:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:43:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 14:43:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:43:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:43:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 14:43:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:43:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 14:43:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:43:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-14 14:43:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-14 14:43:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:43:22,302 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 14:43:22,609 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:43:22,611 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:43:22,960 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:43:22,984 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:43:22,984 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:43:22,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:43:22 BoogieIcfgContainer [2022-12-14 14:43:22,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:43:22,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:43:22,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:43:22,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:43:22,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:43:17" (1/3) ... [2022-12-14 14:43:22,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58aa2f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:43:22, skipping insertion in model container [2022-12-14 14:43:22,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:43:22" (2/3) ... [2022-12-14 14:43:22,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58aa2f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:43:22, skipping insertion in model container [2022-12-14 14:43:22,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:43:22" (3/3) ... [2022-12-14 14:43:22,992 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_unlocked_ioctl_write_nvram.i [2022-12-14 14:43:22,998 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 14:43:23,007 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:43:23,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:43:23,008 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:43:23,100 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 14:43:23,135 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:43:23,147 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 361 places, 365 transitions, 746 flow [2022-12-14 14:43:23,149 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 361 places, 365 transitions, 746 flow [2022-12-14 14:43:23,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 365 transitions, 746 flow [2022-12-14 14:43:23,274 INFO L130 PetriNetUnfolder]: 11/363 cut-off events. [2022-12-14 14:43:23,274 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 14:43:23,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 363 events. 11/363 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 347 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 298. Up to 4 conditions per place. [2022-12-14 14:43:23,289 INFO L119 LiptonReduction]: Number of co-enabled transitions 12132 [2022-12-14 14:44:33,567 WARN L233 SmtUtils]: Spent 15.68s on a formula simplification that was a NOOP. DAG size: 442 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:44:47,895 WARN L233 SmtUtils]: Spent 14.32s 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) [2022-12-14 14:45:07,973 WARN L233 SmtUtils]: Spent 20.08s on a formula simplification that was a NOOP. DAG size: 445 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:45:25,719 WARN L233 SmtUtils]: Spent 17.74s 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) [2022-12-14 14:47:51,946 WARN L233 SmtUtils]: Spent 2.44m 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) [2022-12-14 14:48:47,233 WARN L233 SmtUtils]: Spent 55.28s on a formula simplification that was a NOOP. DAG size: 503 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:50:46,244 WARN L233 SmtUtils]: Spent 1.98m on a formula simplification. DAG size of input: 530 DAG size of output: 526 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:51:22,689 WARN L233 SmtUtils]: Spent 36.44s on a formula simplification that was a NOOP. DAG size: 514 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:51:22,692 INFO L134 LiptonReduction]: Checked pairs total: 11564 [2022-12-14 14:51:22,692 INFO L136 LiptonReduction]: Total number of compositions: 399 [2022-12-14 14:51:22,697 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 23 transitions, 62 flow [2022-12-14 14:51:22,707 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54 states, 52 states have (on average 2.480769230769231) internal successors, (129), 53 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:22,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:51:22,722 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;@746cb659, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:51:22,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 14:51:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 2.480769230769231) internal successors, (129), 53 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:51:22,727 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:51:22,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:51:22,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 14:51:22,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:51:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2065865931, now seen corresponding path program 1 times [2022-12-14 14:51:22,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:51:22,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806213047] [2022-12-14 14:51:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:51:22,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:51:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:51:23,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:51:23,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:51:23,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806213047] [2022-12-14 14:51:23,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806213047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:51:23,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:51:23,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:51:23,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772154519] [2022-12-14 14:51:23,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:51:23,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:51:23,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:51:23,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:51:23,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:51:23,586 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 2.480769230769231) internal successors, (129), 53 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:23,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:51:23,869 INFO L93 Difference]: Finished difference Result 64 states and 142 transitions. [2022-12-14 14:51:23,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:51:23,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 14:51:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:51:23,878 INFO L225 Difference]: With dead ends: 64 [2022-12-14 14:51:23,878 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 14:51:23,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:51:23,880 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:51:23,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:51:23,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 14:51:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-14 14:51:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 109 transitions. [2022-12-14 14:51:23,909 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 109 transitions. Word has length 6 [2022-12-14 14:51:23,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:51:23,909 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 109 transitions. [2022-12-14 14:51:23,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 109 transitions. [2022-12-14 14:51:23,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 14:51:23,910 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:51:23,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:51:23,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:51:23,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 14:51:23,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:51:23,911 INFO L85 PathProgramCache]: Analyzing trace with hash -382664164, now seen corresponding path program 1 times [2022-12-14 14:51:23,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:51:23,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518827330] [2022-12-14 14:51:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:51:23,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:51:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:51:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:51:24,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:51:24,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518827330] [2022-12-14 14:51:24,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518827330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:51:24,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:51:24,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:51:24,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386376789] [2022-12-14 14:51:24,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:51:24,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:51:24,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:51:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:51:24,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:51:24,484 INFO L87 Difference]: Start difference. First operand 52 states and 109 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:51:24,822 INFO L93 Difference]: Finished difference Result 49 states and 100 transitions. [2022-12-14 14:51:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:51:24,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 14:51:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:51:24,823 INFO L225 Difference]: With dead ends: 49 [2022-12-14 14:51:24,823 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 14:51:24,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:51:24,825 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:51:24,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:51:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 14:51:24,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2022-12-14 14:51:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 2.088888888888889) internal successors, (94), 45 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 94 transitions. [2022-12-14 14:51:24,832 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 94 transitions. Word has length 7 [2022-12-14 14:51:24,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:51:24,832 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 94 transitions. [2022-12-14 14:51:24,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:24,832 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 94 transitions. [2022-12-14 14:51:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 14:51:24,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:51:24,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:51:24,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:51:24,833 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 14:51:24,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:51:24,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1817387022, now seen corresponding path program 1 times [2022-12-14 14:51:24,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:51:24,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069116254] [2022-12-14 14:51:24,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:51:24,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:51:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:51:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:51:25,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:51:25,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069116254] [2022-12-14 14:51:25,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069116254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:51:25,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:51:25,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:51:25,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702203820] [2022-12-14 14:51:25,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:51:25,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:51:25,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:51:25,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:51:25,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:51:25,623 INFO L87 Difference]: Start difference. First operand 46 states and 94 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:25,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:51:25,956 INFO L93 Difference]: Finished difference Result 55 states and 107 transitions. [2022-12-14 14:51:25,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:51:25,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 14:51:25,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:51:25,957 INFO L225 Difference]: With dead ends: 55 [2022-12-14 14:51:25,958 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 14:51:25,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:51:25,959 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:51:25,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:51:25,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 14:51:25,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-14 14:51:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:25,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 33 transitions. [2022-12-14 14:51:25,963 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 33 transitions. Word has length 9 [2022-12-14 14:51:25,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:51:25,963 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 33 transitions. [2022-12-14 14:51:25,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:25,964 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2022-12-14 14:51:25,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 14:51:25,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:51:25,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:51:25,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:51:25,965 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 14:51:25,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:51:25,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1626676136, now seen corresponding path program 2 times [2022-12-14 14:51:25,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:51:25,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580013113] [2022-12-14 14:51:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:51:25,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:51:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:51:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:51:26,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:51:26,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580013113] [2022-12-14 14:51:26,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580013113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:51:26,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:51:26,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:51:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490509527] [2022-12-14 14:51:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:51:26,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 14:51:26,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:51:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 14:51:26,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:51:26,834 INFO L87 Difference]: Start difference. First operand 21 states and 33 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:27,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:51:27,194 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2022-12-14 14:51:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:51:27,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 14:51:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:51:27,195 INFO L225 Difference]: With dead ends: 15 [2022-12-14 14:51:27,195 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:51:27,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:51:27,196 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:51:27,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:51:27,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:51:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:51:27,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:51:27,197 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-12-14 14:51:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:51:27,198 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:51:27,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:51:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:51:27,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:51:27,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-14 14:51:27,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-14 14:51:27,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-14 14:51:27,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-14 14:51:27,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:51:27,203 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-14 14:51:27,208 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 14:51:27,208 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:51:27,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:51:27 BasicIcfg [2022-12-14 14:51:27,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:51:27,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:51:27,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:51:27,210 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:51:27,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:43:22" (3/4) ... [2022-12-14 14:51:27,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:51:27,215 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_write_nvram [2022-12-14 14:51:27,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_nvram_unlocked_ioctl [2022-12-14 14:51:27,219 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-12-14 14:51:27,219 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 14:51:27,219 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 14:51:27,220 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 14:51:27,220 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:51:27,254 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:51:27,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:51:27,255 INFO L158 Benchmark]: Toolchain (without parser) took 489770.34ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 106.3MB in the beginning and 81.8MB in the end (delta: 24.5MB). Peak memory consumption was 92.6MB. Max. memory is 16.1GB. [2022-12-14 14:51:27,255 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:51:27,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4628.67ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 106.2MB in the beginning and 107.9MB in the end (delta: -1.7MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. [2022-12-14 14:51:27,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.64ms. Allocated memory is still 176.2MB. Free memory was 107.9MB in the beginning and 98.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 14:51:27,256 INFO L158 Benchmark]: Boogie Preprocessor took 32.40ms. Allocated memory is still 176.2MB. Free memory was 98.5MB in the beginning and 94.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:51:27,256 INFO L158 Benchmark]: RCFGBuilder took 736.31ms. Allocated memory is still 176.2MB. Free memory was 94.3MB in the beginning and 105.1MB in the end (delta: -10.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-12-14 14:51:27,257 INFO L158 Benchmark]: TraceAbstraction took 484222.29ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 105.1MB in the beginning and 86.0MB in the end (delta: 19.1MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2022-12-14 14:51:27,257 INFO L158 Benchmark]: Witness Printer took 44.63ms. Allocated memory is still 211.8MB. Free memory was 86.0MB in the beginning and 81.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:51:27,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4628.67ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 106.2MB in the beginning and 107.9MB in the end (delta: -1.7MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.64ms. Allocated memory is still 176.2MB. Free memory was 107.9MB in the beginning and 98.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.40ms. Allocated memory is still 176.2MB. Free memory was 98.5MB in the beginning and 94.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 736.31ms. Allocated memory is still 176.2MB. Free memory was 94.3MB in the beginning and 105.1MB in the end (delta: -10.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * TraceAbstraction took 484222.29ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 105.1MB in the beginning and 86.0MB in the end (delta: 19.1MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. * Witness Printer took 44.63ms. Allocated memory is still 211.8MB. Free memory was 86.0MB in the beginning and 81.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 479.5s, 361 PlacesBefore, 26 PlacesAfterwards, 365 TransitionsBefore, 23 TransitionsAfterwards, 12132 CoEnabledTransitionPairs, 10 FixpointIterations, 202 TrivialSequentialCompositions, 152 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 25 ConcurrentYvCompositions, 7 ChoiceCompositions, 399 TotalNumberOfCompositions, 11564 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9837, independent: 9706, independent conditional: 0, independent unconditional: 9706, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8351, independent: 8301, independent conditional: 0, independent unconditional: 8301, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8351, independent: 8294, independent conditional: 0, independent unconditional: 8294, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8775, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 317, dependent conditional: 0, dependent unconditional: 317, unknown: 8424, unknown conditional: 0, unknown unconditional: 8424] ], Cache Queries: [ total: 9837, independent: 1405, independent conditional: 0, independent unconditional: 1405, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 8364, unknown conditional: 0, unknown unconditional: 8364] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 498 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 484.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 479.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 0 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 14:51:27,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0422d7f-42d0-477e-94f7-da5fc600cd68/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE