./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/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_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:12:51,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:12:51,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:12:51,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:12:51,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:12:51,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:12:51,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:12:51,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:12:51,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:12:51,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:12:51,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:12:51,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:12:51,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:12:51,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:12:51,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:12:51,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:12:51,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:12:51,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:12:51,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:12:51,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:12:51,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:12:51,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:12:51,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:12:51,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:12:51,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:12:51,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:12:51,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:12:51,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:12:51,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:12:51,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:12:51,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:12:51,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:12:51,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:12:51,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:12:51,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:12:51,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:12:51,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:12:51,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:12:51,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:12:51,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:12:51,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:12:51,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:12:51,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:12:51,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:12:51,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:12:51,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:12:51,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:12:51,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:12:51,308 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:12:51,308 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:12:51,308 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:12:51,309 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:12:51,310 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:12:51,310 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:12:51,310 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:12:51,310 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:12:51,310 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:12:51,311 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:12:51,311 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:12:51,311 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:12:51,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:12:51,312 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:12:51,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:12:51,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:12:51,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:12:51,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:12:51,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:12:51,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:12:51,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:12:51,313 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:12:51,314 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:12:51,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:12:51,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:12:51,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:12:51,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:12:51,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:12:51,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:12:51,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:12:51,317 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:12:51,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:12:51,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:12:51,317 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:12:51,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:12:51,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:12:51,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:12:51,318 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_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 [2022-11-26 00:12:51,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:12:51,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:12:51,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:12:51,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:12:51,601 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:12:51,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-26 00:12:54,592 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:12:55,219 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:12:55,220 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-26 00:12:55,269 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/data/1948ecca9/3bd161418b114f71ad0aac2f6fef133a/FLAG9a114e7e6 [2022-11-26 00:12:55,287 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/data/1948ecca9/3bd161418b114f71ad0aac2f6fef133a [2022-11-26 00:12:55,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:12:55,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:12:55,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:12:55,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:12:55,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:12:55,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:12:55" (1/1) ... [2022-11-26 00:12:55,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24bfd43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:55, skipping insertion in model container [2022-11-26 00:12:55,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:12:55" (1/1) ... [2022-11-26 00:12:55,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:12:55,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:12:55,826 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_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-11-26 00:12:56,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:12:56,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:12:56,981 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 00:12:56,985 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:12:56,989 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:12:56,997 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:12:57,138 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:12:57,143 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:12:57,293 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 00:12:57,522 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:12:57,529 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:12:57,595 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 00:12:57,599 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 00:12:57,889 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 00:12:57,893 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 00:12:57,897 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 00:12:58,020 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 00:12:58,020 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:12:58,024 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 00:12:58,025 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:12:58,213 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 00:12:58,249 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 00:12:58,452 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 00:12:58,458 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 00:12:58,640 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 00:12:58,885 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 00:12:58,886 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 00:12:58,886 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 00:13:00,127 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 00:13:00,128 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:13:00,143 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:13:00,152 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:13:00,160 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:13:00,926 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 00:13:00,934 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 00:13:00,943 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 00:13:00,953 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:13:00,954 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 00:13:00,957 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:13:00,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:13:01,011 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:13:01,043 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_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-11-26 00:13:01,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,100 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:13:01,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:13:01,122 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-11-26 00:13:01,123 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:13:01,124 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:13:01,125 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-11-26 00:13:01,140 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:13:01,143 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-11-26 00:13:01,151 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-11-26 00:13:01,177 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:13:01,178 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-11-26 00:13:01,182 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-11-26 00:13:01,183 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-11-26 00:13:01,197 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-11-26 00:13:01,197 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-11-26 00:13:01,198 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-11-26 00:13:01,205 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-11-26 00:13:01,205 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:13:01,206 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-11-26 00:13:01,206 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-11-26 00:13:01,219 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-11-26 00:13:01,223 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-26 00:13:01,231 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-11-26 00:13:01,232 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-26 00:13:01,237 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-11-26 00:13:01,245 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-11-26 00:13:01,245 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-11-26 00:13:01,246 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-11-26 00:13:01,458 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-26 00:13:01,459 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:13:01,462 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:13:01,465 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:13:01,468 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-11-26 00:13:01,512 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-11-26 00:13:01,515 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-11-26 00:13:01,516 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-11-26 00:13:01,518 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 00:13:01,519 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-11-26 00:13:01,519 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 00:13:01,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:13:01,947 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:13:01,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01 WrapperNode [2022-11-26 00:13:01,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:13:01,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:13:01,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:13:01,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:13:01,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,172 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 16, statements flattened = 447 [2022-11-26 00:13:02,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:13:02,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:13:02,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:13:02,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:13:02,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,218 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:13:02,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:13:02,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:13:02,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:13:02,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (1/1) ... [2022-11-26 00:13:02,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:13:02,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:13:02,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:13:02,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ad83c3f-4cab-44ea-8ccf-a3c8e203e8c2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:13:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:13:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:13:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-26 00:13:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-26 00:13:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:13:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:13:02,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:13:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:13:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:13:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:13:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:13:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:13:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:13:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:13:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:13:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-26 00:13:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-26 00:13:02,356 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:13:02,896 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:13:02,900 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:13:03,638 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:13:03,709 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:13:03,709 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:13:03,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:03 BoogieIcfgContainer [2022-11-26 00:13:03,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:13:03,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:13:03,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:13:03,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:13:03,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:12:55" (1/3) ... [2022-11-26 00:13:03,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66148819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:13:03, skipping insertion in model container [2022-11-26 00:13:03,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:01" (2/3) ... [2022-11-26 00:13:03,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66148819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:13:03, skipping insertion in model container [2022-11-26 00:13:03,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:03" (3/3) ... [2022-11-26 00:13:03,726 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-26 00:13:03,735 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:13:03,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:13:03,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2022-11-26 00:13:03,747 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:13:03,886 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 00:13:03,946 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:13:03,969 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 501 places, 505 transitions, 1026 flow [2022-11-26 00:13:03,974 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 501 places, 505 transitions, 1026 flow [2022-11-26 00:13:03,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 505 transitions, 1026 flow [2022-11-26 00:13:04,225 INFO L130 PetriNetUnfolder]: 11/503 cut-off events. [2022-11-26 00:13:04,226 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 00:13:04,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 503 events. 11/503 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 508 event pairs, 0 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 374. Up to 5 conditions per place. [2022-11-26 00:13:04,244 INFO L119 LiptonReduction]: Number of co-enabled transitions 18576 [2022-11-26 00:17:22,914 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 318 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:17:53,484 WARN L233 SmtUtils]: Spent 9.30s on a formula simplification that was a NOOP. DAG size: 312 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:17:59,743 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 304 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:18:08,277 WARN L233 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 323 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:18:14,527 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 315 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:21:25,967 WARN L233 SmtUtils]: Spent 3.19m on a formula simplification. DAG size of input: 594 DAG size of output: 590 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:22:27,707 WARN L233 SmtUtils]: Spent 1.03m on a formula simplification that was a NOOP. DAG size: 517 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:25:32,438 WARN L233 SmtUtils]: Spent 3.08m on a formula simplification. DAG size of input: 605 DAG size of output: 601 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:26:32,372 WARN L233 SmtUtils]: Spent 59.91s on a formula simplification that was a NOOP. DAG size: 528 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:26:32,859 INFO L134 LiptonReduction]: Checked pairs total: 152391 [2022-11-26 00:26:32,859 INFO L136 LiptonReduction]: Total number of compositions: 621 [2022-11-26 00:26:32,869 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 110 places, 106 transitions, 228 flow [2022-11-26 00:26:33,080 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4356 states, 4214 states have (on average 2.8234456573327007) internal successors, (11898), 4355 states have internal predecessors, (11898), 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 00:26:33,107 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:26:33,115 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;@6211f66e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:26:33,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-26 00:26:33,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 4356 states, 4214 states have (on average 2.8234456573327007) internal successors, (11898), 4355 states have internal predecessors, (11898), 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 00:26:33,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:26:33,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:33,139 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:26:33,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:26:33,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:33,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1919, now seen corresponding path program 1 times [2022-11-26 00:26:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:33,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196082135] [2022-11-26 00:26:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:33,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:33,366 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 00:26:33,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:33,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196082135] [2022-11-26 00:26:33,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196082135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:33,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:33,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:26:33,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051717281] [2022-11-26 00:26:33,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:33,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:26:33,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:33,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:26:33,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:26:33,411 INFO L87 Difference]: Start difference. First operand has 4356 states, 4214 states have (on average 2.8234456573327007) internal successors, (11898), 4355 states have internal predecessors, (11898), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 00:26:33,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:33,713 INFO L93 Difference]: Finished difference Result 1849 states and 4653 transitions. [2022-11-26 00:26:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:26:33,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-26 00:26:33,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:33,745 INFO L225 Difference]: With dead ends: 1849 [2022-11-26 00:26:33,745 INFO L226 Difference]: Without dead ends: 1849 [2022-11-26 00:26:33,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:26:33,749 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:33,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:26:33,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-11-26 00:26:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1849. [2022-11-26 00:26:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1835 states have (on average 2.535694822888283) internal successors, (4653), 1848 states have internal predecessors, (4653), 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 00:26:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 4653 transitions. [2022-11-26 00:26:33,873 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 4653 transitions. Word has length 1 [2022-11-26 00:26:33,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:33,873 INFO L495 AbstractCegarLoop]: Abstraction has 1849 states and 4653 transitions. [2022-11-26 00:26:33,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 00:26:33,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 4653 transitions. [2022-11-26 00:26:33,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:26:33,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:33,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:33,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:26:33,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:26:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:33,878 INFO L85 PathProgramCache]: Analyzing trace with hash -24745597, now seen corresponding path program 1 times [2022-11-26 00:26:33,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:33,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373268465] [2022-11-26 00:26:33,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:33,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:35,587 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 00:26:35,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:35,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373268465] [2022-11-26 00:26:35,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373268465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:35,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:35,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:35,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866995414] [2022-11-26 00:26:35,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:35,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:26:35,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:35,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:26:35,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:26:35,591 INFO L87 Difference]: Start difference. First operand 1849 states and 4653 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 00:26:37,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:37,811 INFO L93 Difference]: Finished difference Result 2968 states and 7260 transitions. [2022-11-26 00:26:37,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:37,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-11-26 00:26:37,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:37,831 INFO L225 Difference]: With dead ends: 2968 [2022-11-26 00:26:37,831 INFO L226 Difference]: Without dead ends: 2968 [2022-11-26 00:26:37,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:26:37,833 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:37,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 38 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 00:26:37,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2022-11-26 00:26:37,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2445. [2022-11-26 00:26:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2431 states have (on average 2.572192513368984) internal successors, (6253), 2444 states have internal predecessors, (6253), 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 00:26:37,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 6253 transitions. [2022-11-26 00:26:37,957 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 6253 transitions. Word has length 10 [2022-11-26 00:26:37,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:37,958 INFO L495 AbstractCegarLoop]: Abstraction has 2445 states and 6253 transitions. [2022-11-26 00:26:37,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 00:26:37,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 6253 transitions. [2022-11-26 00:26:37,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:26:37,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:37,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:37,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:26:37,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:26:37,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:37,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1720072861, now seen corresponding path program 1 times [2022-11-26 00:26:37,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:37,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179921880] [2022-11-26 00:26:37,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:37,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:39,834 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 00:26:39,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:39,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179921880] [2022-11-26 00:26:39,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179921880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:39,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:39,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:26:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164218394] [2022-11-26 00:26:39,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:39,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:26:39,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:39,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:26:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:26:39,837 INFO L87 Difference]: Start difference. First operand 2445 states and 6253 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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 00:26:42,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:42,799 INFO L93 Difference]: Finished difference Result 3056 states and 7533 transitions. [2022-11-26 00:26:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:26:42,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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 12 [2022-11-26 00:26:42,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:42,818 INFO L225 Difference]: With dead ends: 3056 [2022-11-26 00:26:42,818 INFO L226 Difference]: Without dead ends: 3056 [2022-11-26 00:26:42,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:26:42,820 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 140 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:42,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 36 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-26 00:26:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2022-11-26 00:26:42,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 2305. [2022-11-26 00:26:42,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2292 states have (on average 2.566753926701571) internal successors, (5883), 2304 states have internal predecessors, (5883), 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 00:26:42,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 5883 transitions. [2022-11-26 00:26:42,890 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 5883 transitions. Word has length 12 [2022-11-26 00:26:42,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:42,891 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 5883 transitions. [2022-11-26 00:26:42,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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 00:26:42,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 5883 transitions. [2022-11-26 00:26:42,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:26:42,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:42,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:42,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:26:42,894 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:26:42,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:42,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1232490900, now seen corresponding path program 1 times [2022-11-26 00:26:42,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:42,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852849175] [2022-11-26 00:26:42,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:42,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:44,636 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 00:26:44,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:44,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852849175] [2022-11-26 00:26:44,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852849175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:44,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:44,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:26:44,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651879890] [2022-11-26 00:26:44,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:44,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:26:44,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:44,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:26:44,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:26:44,638 INFO L87 Difference]: Start difference. First operand 2305 states and 5883 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:26:48,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:48,467 INFO L93 Difference]: Finished difference Result 3918 states and 9335 transitions. [2022-11-26 00:26:48,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:26:48,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 14 [2022-11-26 00:26:48,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:48,486 INFO L225 Difference]: With dead ends: 3918 [2022-11-26 00:26:48,486 INFO L226 Difference]: Without dead ends: 3918 [2022-11-26 00:26:48,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:26:48,488 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 181 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:48,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 36 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-26 00:26:48,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2022-11-26 00:26:48,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 2468. [2022-11-26 00:26:48,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 2455 states have (on average 2.590224032586558) internal successors, (6359), 2467 states have internal predecessors, (6359), 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 00:26:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 6359 transitions. [2022-11-26 00:26:48,574 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 6359 transitions. Word has length 14 [2022-11-26 00:26:48,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:48,575 INFO L495 AbstractCegarLoop]: Abstraction has 2468 states and 6359 transitions. [2022-11-26 00:26:48,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:26:48,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 6359 transitions. [2022-11-26 00:26:48,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:26:48,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:48,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:48,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:26:48,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:26:48,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:48,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2072851346, now seen corresponding path program 2 times [2022-11-26 00:26:48,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:48,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800976608] [2022-11-26 00:26:48,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:48,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:50,144 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 00:26:50,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:50,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800976608] [2022-11-26 00:26:50,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800976608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:50,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:50,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:26:50,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818241223] [2022-11-26 00:26:50,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:50,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:26:50,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:50,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:26:50,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:26:50,146 INFO L87 Difference]: Start difference. First operand 2468 states and 6359 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:26:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:53,912 INFO L93 Difference]: Finished difference Result 4273 states and 10309 transitions. [2022-11-26 00:26:53,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:26:53,912 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 14 [2022-11-26 00:26:53,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:53,929 INFO L225 Difference]: With dead ends: 4273 [2022-11-26 00:26:53,929 INFO L226 Difference]: Without dead ends: 4273 [2022-11-26 00:26:53,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:26:53,931 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 209 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:53,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 36 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:26:53,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2022-11-26 00:26:54,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 2615. [2022-11-26 00:26:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2602 states have (on average 2.608378170637971) internal successors, (6787), 2614 states have internal predecessors, (6787), 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 00:26:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 6787 transitions. [2022-11-26 00:26:54,017 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 6787 transitions. Word has length 14 [2022-11-26 00:26:54,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:54,017 INFO L495 AbstractCegarLoop]: Abstraction has 2615 states and 6787 transitions. [2022-11-26 00:26:54,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:26:54,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 6787 transitions. [2022-11-26 00:26:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:26:54,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:54,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:54,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:26:54,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:26:54,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2140860196, now seen corresponding path program 3 times [2022-11-26 00:26:54,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:54,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524939661] [2022-11-26 00:26:54,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:54,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:02,808 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 00:27:02,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:02,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524939661] [2022-11-26 00:27:02,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524939661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:02,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:02,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:27:02,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832448332] [2022-11-26 00:27:02,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:02,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:27:02,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:02,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:27:02,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:27:02,811 INFO L87 Difference]: Start difference. First operand 2615 states and 6787 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:27:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:07,192 INFO L93 Difference]: Finished difference Result 4657 states and 11324 transitions. [2022-11-26 00:27:07,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:27:07,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 14 [2022-11-26 00:27:07,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:07,213 INFO L225 Difference]: With dead ends: 4657 [2022-11-26 00:27:07,214 INFO L226 Difference]: Without dead ends: 4657 [2022-11-26 00:27:07,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:27:07,215 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 212 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:07,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 36 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-26 00:27:07,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4657 states. [2022-11-26 00:27:07,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4657 to 2762. [2022-11-26 00:27:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2749 states have (on average 2.624590760276464) internal successors, (7215), 2761 states have internal predecessors, (7215), 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 00:27:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 7215 transitions. [2022-11-26 00:27:07,306 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 7215 transitions. Word has length 14 [2022-11-26 00:27:07,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:07,306 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 7215 transitions. [2022-11-26 00:27:07,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:27:07,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 7215 transitions. [2022-11-26 00:27:07,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:27:07,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:07,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:07,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:27:07,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:27:07,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:07,309 INFO L85 PathProgramCache]: Analyzing trace with hash -980017524, now seen corresponding path program 4 times [2022-11-26 00:27:07,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:07,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539193589] [2022-11-26 00:27:07,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:07,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:08,442 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 00:27:08,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:08,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539193589] [2022-11-26 00:27:08,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539193589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:08,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:08,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:27:08,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872883198] [2022-11-26 00:27:08,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:08,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:27:08,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:08,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:27:08,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:27:08,444 INFO L87 Difference]: Start difference. First operand 2762 states and 7215 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:27:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:11,768 INFO L93 Difference]: Finished difference Result 5007 states and 12299 transitions. [2022-11-26 00:27:11,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:27:11,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 14 [2022-11-26 00:27:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:11,784 INFO L225 Difference]: With dead ends: 5007 [2022-11-26 00:27:11,784 INFO L226 Difference]: Without dead ends: 5007 [2022-11-26 00:27:11,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:27:11,785 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 215 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:11,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 36 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-26 00:27:11,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5007 states. [2022-11-26 00:27:11,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5007 to 2909. [2022-11-26 00:27:11,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2896 states have (on average 2.639157458563536) internal successors, (7643), 2908 states have internal predecessors, (7643), 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 00:27:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 7643 transitions. [2022-11-26 00:27:11,940 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 7643 transitions. Word has length 14 [2022-11-26 00:27:11,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:11,941 INFO L495 AbstractCegarLoop]: Abstraction has 2909 states and 7643 transitions. [2022-11-26 00:27:11,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:27:11,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 7643 transitions. [2022-11-26 00:27:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:27:11,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:11,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:11,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:27:11,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:27:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:11,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1900751934, now seen corresponding path program 5 times [2022-11-26 00:27:11,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:11,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59246254] [2022-11-26 00:27:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:11,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:13,088 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 00:27:13,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:13,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59246254] [2022-11-26 00:27:13,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59246254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:13,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:13,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:27:13,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445922978] [2022-11-26 00:27:13,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:13,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:27:13,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:27:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:27:13,090 INFO L87 Difference]: Start difference. First operand 2909 states and 7643 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:27:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:15,677 INFO L93 Difference]: Finished difference Result 3928 states and 9878 transitions. [2022-11-26 00:27:15,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:27:15,678 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 14 [2022-11-26 00:27:15,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:15,689 INFO L225 Difference]: With dead ends: 3928 [2022-11-26 00:27:15,690 INFO L226 Difference]: Without dead ends: 3928 [2022-11-26 00:27:15,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:27:15,691 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 265 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:15,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 0 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-26 00:27:15,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2022-11-26 00:27:15,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 2529. [2022-11-26 00:27:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2516 states have (on average 2.5822734499205087) internal successors, (6497), 2528 states have internal predecessors, (6497), 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 00:27:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 6497 transitions. [2022-11-26 00:27:15,765 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 6497 transitions. Word has length 14 [2022-11-26 00:27:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:15,765 INFO L495 AbstractCegarLoop]: Abstraction has 2529 states and 6497 transitions. [2022-11-26 00:27:15,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 00:27:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 6497 transitions. [2022-11-26 00:27:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:27:15,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:15,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:15,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:27:15,767 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:27:15,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:15,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1991290892, now seen corresponding path program 1 times [2022-11-26 00:27:15,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:15,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67722237] [2022-11-26 00:27:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:15,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:17,245 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 00:27:17,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:17,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67722237] [2022-11-26 00:27:17,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67722237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:17,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:17,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:27:17,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015139952] [2022-11-26 00:27:17,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:17,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:27:17,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:17,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:27:17,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:27:17,247 INFO L87 Difference]: Start difference. First operand 2529 states and 6497 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 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 00:27:19,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:19,262 INFO L93 Difference]: Finished difference Result 3636 states and 9034 transitions. [2022-11-26 00:27:19,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:27:19,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 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 15 [2022-11-26 00:27:19,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:19,273 INFO L225 Difference]: With dead ends: 3636 [2022-11-26 00:27:19,273 INFO L226 Difference]: Without dead ends: 3607 [2022-11-26 00:27:19,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:27:19,274 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:19,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 26 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:27:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2022-11-26 00:27:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3195. [2022-11-26 00:27:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 3182 states have (on average 2.513827781269642) internal successors, (7999), 3194 states have internal predecessors, (7999), 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 00:27:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 7999 transitions. [2022-11-26 00:27:19,380 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 7999 transitions. Word has length 15 [2022-11-26 00:27:19,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:19,380 INFO L495 AbstractCegarLoop]: Abstraction has 3195 states and 7999 transitions. [2022-11-26 00:27:19,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 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 00:27:19,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 7999 transitions. [2022-11-26 00:27:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:27:19,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:19,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:19,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:27:19,383 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:27:19,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:19,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1100529012, now seen corresponding path program 1 times [2022-11-26 00:27:19,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:19,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622387489] [2022-11-26 00:27:19,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:19,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:27:21,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:21,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622387489] [2022-11-26 00:27:21,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622387489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:21,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:21,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:27:21,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536944445] [2022-11-26 00:27:21,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:21,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:27:21,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:21,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:27:21,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:27:21,484 INFO L87 Difference]: Start difference. First operand 3195 states and 7999 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 00:27:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:26,509 INFO L93 Difference]: Finished difference Result 4913 states and 11471 transitions. [2022-11-26 00:27:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:27:26,509 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 16 [2022-11-26 00:27:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:26,523 INFO L225 Difference]: With dead ends: 4913 [2022-11-26 00:27:26,523 INFO L226 Difference]: Without dead ends: 4913 [2022-11-26 00:27:26,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:27:26,524 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 202 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:26,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 36 Invalid, 1633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:27:26,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4913 states. [2022-11-26 00:27:26,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4913 to 3253. [2022-11-26 00:27:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3240 states have (on average 2.5237654320987652) internal successors, (8177), 3252 states have internal predecessors, (8177), 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 00:27:26,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 8177 transitions. [2022-11-26 00:27:26,610 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 8177 transitions. Word has length 16 [2022-11-26 00:27:26,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:26,611 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 8177 transitions. [2022-11-26 00:27:26,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 00:27:26,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 8177 transitions. [2022-11-26 00:27:26,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:27:26,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:26,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:26,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:27:26,614 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:27:26,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:26,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1940889458, now seen corresponding path program 2 times [2022-11-26 00:27:26,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:26,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605828084] [2022-11-26 00:27:26,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:26,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:28,517 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 00:27:28,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:28,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605828084] [2022-11-26 00:27:28,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605828084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:28,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:28,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:27:28,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906709906] [2022-11-26 00:27:28,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:28,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:27:28,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:28,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:27:28,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:27:28,520 INFO L87 Difference]: Start difference. First operand 3253 states and 8177 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 00:27:33,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:33,648 INFO L93 Difference]: Finished difference Result 5384 states and 12751 transitions. [2022-11-26 00:27:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:27:33,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 16 [2022-11-26 00:27:33,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:33,661 INFO L225 Difference]: With dead ends: 5384 [2022-11-26 00:27:33,661 INFO L226 Difference]: Without dead ends: 5384 [2022-11-26 00:27:33,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:27:33,662 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 201 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:33,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 36 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-26 00:27:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5384 states. [2022-11-26 00:27:33,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5384 to 3311. [2022-11-26 00:27:33,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 3298 states have (on average 2.5333535476046087) internal successors, (8355), 3310 states have internal predecessors, (8355), 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 00:27:33,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 8355 transitions. [2022-11-26 00:27:33,751 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 8355 transitions. Word has length 16 [2022-11-26 00:27:33,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:33,752 INFO L495 AbstractCegarLoop]: Abstraction has 3311 states and 8355 transitions. [2022-11-26 00:27:33,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 00:27:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 8355 transitions. [2022-11-26 00:27:33,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:27:33,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:33,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:33,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:27:33,755 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-26 00:27:33,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:33,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2022145212, now seen corresponding path program 3 times [2022-11-26 00:27:33,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:33,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313236093] [2022-11-26 00:27:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:33,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:35,480 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 00:27:35,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:35,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313236093] [2022-11-26 00:27:35,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313236093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:35,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:35,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:27:35,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678185775] [2022-11-26 00:27:35,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:35,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:27:35,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:35,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:27:35,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:27:35,482 INFO L87 Difference]: Start difference. First operand 3311 states and 8355 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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)