./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI --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 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- 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-5e519f3 [2022-11-03 01:44:53,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:44:53,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:44:53,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:44:53,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:44:53,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:44:53,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:44:53,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:44:53,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:44:53,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:44:53,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:44:53,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:44:53,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:44:53,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:44:53,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:44:53,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:44:53,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:44:53,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:44:53,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:44:53,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:44:53,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:44:53,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:44:53,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:44:53,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:44:53,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:44:53,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:44:53,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:44:53,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:44:53,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:44:53,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:44:53,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:44:53,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:44:53,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:44:53,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:44:53,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:44:53,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:44:53,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:44:53,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:44:53,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:44:53,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:44:53,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:44:53,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 01:44:53,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:44:53,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:44:53,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:44:53,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:44:53,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:44:53,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:44:53,584 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:44:53,584 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:44:53,584 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:44:53,585 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:44:53,585 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:44:53,585 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:44:53,585 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:44:53,586 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:44:53,586 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:44:53,600 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:44:53,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:44:53,600 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:44:53,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:44:53,601 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:44:53,601 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 01:44:53,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:44:53,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:44:53,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:44:53,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:44:53,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:44:53,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:44:53,603 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 01:44:53,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:44:53,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:44:53,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:44:53,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:44:53,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:44:53,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:44:53,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:44:53,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:44:53,605 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:44:53,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:44:53,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:44:53,606 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:44:53,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:44:53,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:44:53,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:44:53,606 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2022-11-03 01:44:53,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:44:53,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:44:53,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:44:53,932 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:44:53,933 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:44:53,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2022-11-03 01:44:54,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/data/786a9e862/be146603de0e491e8eedbaf0a64dfa8d/FLAGf6fb16a13 [2022-11-03 01:44:54,601 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:44:54,602 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2022-11-03 01:44:54,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/data/786a9e862/be146603de0e491e8eedbaf0a64dfa8d/FLAGf6fb16a13 [2022-11-03 01:44:54,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/data/786a9e862/be146603de0e491e8eedbaf0a64dfa8d [2022-11-03 01:44:54,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:44:54,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:44:54,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:44:54,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:44:54,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:44:54,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:44:54" (1/1) ... [2022-11-03 01:44:54,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eaae810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:54, skipping insertion in model container [2022-11-03 01:44:54,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:44:54" (1/1) ... [2022-11-03 01:44:54,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:44:54,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:44:55,207 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 01:44:55,462 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30448,30461] [2022-11-03 01:44:55,487 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30811,30824] [2022-11-03 01:44:55,508 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31483,31496] [2022-11-03 01:44:55,511 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31534,31547] [2022-11-03 01:44:55,522 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31683,31696] [2022-11-03 01:44:55,524 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31760,31773] [2022-11-03 01:44:55,526 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31807,31820] [2022-11-03 01:44:55,535 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31916,31929] [2022-11-03 01:44:55,539 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32035,32048] [2022-11-03 01:44:55,542 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32083,32096] [2022-11-03 01:44:55,545 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32160,32173] [2022-11-03 01:44:55,547 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32286,32299] [2022-11-03 01:44:55,555 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32869,32882] [2022-11-03 01:44:55,558 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32946,32959] [2022-11-03 01:44:55,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:44:55,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:44:55,588 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 01:44:55,604 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30448,30461] [2022-11-03 01:44:55,607 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30811,30824] [2022-11-03 01:44:55,615 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31483,31496] [2022-11-03 01:44:55,616 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31534,31547] [2022-11-03 01:44:55,618 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31683,31696] [2022-11-03 01:44:55,619 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31760,31773] [2022-11-03 01:44:55,620 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31807,31820] [2022-11-03 01:44:55,622 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31916,31929] [2022-11-03 01:44:55,624 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32035,32048] [2022-11-03 01:44:55,625 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32083,32096] [2022-11-03 01:44:55,626 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32160,32173] [2022-11-03 01:44:55,627 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32286,32299] [2022-11-03 01:44:55,637 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32869,32882] [2022-11-03 01:44:55,638 WARN L230 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_ddc5fa86-5dab-4b81-be2b-edb75485bc24/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32946,32959] [2022-11-03 01:44:55,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:44:55,681 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:44:55,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55 WrapperNode [2022-11-03 01:44:55,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:44:55,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:44:55,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:44:55,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:44:55,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,818 INFO L138 Inliner]: procedures = 174, calls = 70, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 781 [2022-11-03 01:44:55,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:44:55,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:44:55,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:44:55,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:44:55,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,929 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:44:55,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:44:55,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:44:55,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:44:55,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (1/1) ... [2022-11-03 01:44:55,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:44:55,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:44:55,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:44:55,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:44:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:44:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:44:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 01:44:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-03 01:44:56,018 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-03 01:44:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:44:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:44:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:44:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:44:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:44:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:44:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:44:56,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:44:56,022 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 01:44:56,230 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:44:56,242 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:44:57,819 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:44:57,843 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:44:57,843 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-03 01:44:57,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:44:57 BoogieIcfgContainer [2022-11-03 01:44:57,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:44:57,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:44:57,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:44:57,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:44:57,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:44:54" (1/3) ... [2022-11-03 01:44:57,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c5aeba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:44:57, skipping insertion in model container [2022-11-03 01:44:57,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:55" (2/3) ... [2022-11-03 01:44:57,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c5aeba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:44:57, skipping insertion in model container [2022-11-03 01:44:57,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:44:57" (3/3) ... [2022-11-03 01:44:57,861 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2022-11-03 01:44:57,871 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 01:44:57,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:44:57,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2022-11-03 01:44:57,883 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 01:44:58,117 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 01:44:58,188 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 01:44:58,206 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 839 places, 898 transitions, 1804 flow [2022-11-03 01:44:58,212 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 839 places, 898 transitions, 1804 flow [2022-11-03 01:44:58,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 839 places, 898 transitions, 1804 flow [2022-11-03 01:44:58,997 INFO L130 PetriNetUnfolder]: 94/1320 cut-off events. [2022-11-03 01:44:58,998 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 01:44:59,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1326 conditions, 1320 events. 94/1320 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4491 event pairs, 0 based on Foata normal form. 0/1110 useless extension candidates. Maximal degree in co-relation 792. Up to 4 conditions per place. [2022-11-03 01:44:59,216 INFO L118 LiptonReduction]: Number of co-enabled transitions 312440 [2022-11-03 01:46:34,687 WARN L234 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 109 DAG size of output: 105 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 01:46:43,211 WARN L234 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 109 DAG size of output: 105 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 01:46:59,863 WARN L234 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 122 DAG size of output: 118 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 01:47:12,615 WARN L234 SmtUtils]: Spent 10.92s on a formula simplification. DAG size of input: 131 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 01:47:24,548 INFO L133 LiptonReduction]: Checked pairs total: 4972827 [2022-11-03 01:47:24,548 INFO L135 LiptonReduction]: Total number of compositions: 662 [2022-11-03 01:47:24,556 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 434 places, 470 transitions, 948 flow [2022-11-03 01:47:26,481 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45071 states, 43629 states have (on average 2.231222352105251) internal successors, (97346), 45070 states have internal predecessors, (97346), 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) [2022-11-03 01:47:26,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:47:26,565 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;@5ed77e9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:47:26,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2022-11-03 01:47:26,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 45071 states, 43629 states have (on average 2.231222352105251) internal successors, (97346), 45070 states have internal predecessors, (97346), 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) [2022-11-03 01:47:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-03 01:47:26,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:26,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-03 01:47:26,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:26,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:26,695 INFO L85 PathProgramCache]: Analyzing trace with hash 97977, now seen corresponding path program 1 times [2022-11-03 01:47:26,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:26,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210497336] [2022-11-03 01:47:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:26,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:47:27,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:27,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210497336] [2022-11-03 01:47:27,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210497336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:27,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:27,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 01:47:27,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096813504] [2022-11-03 01:47:27,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:27,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:47:27,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:27,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:47:27,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:47:27,096 INFO L87 Difference]: Start difference. First operand has 45071 states, 43629 states have (on average 2.231222352105251) internal successors, (97346), 45070 states have internal predecessors, (97346), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-03 01:47:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:28,361 INFO L93 Difference]: Finished difference Result 45066 states and 93091 transitions. [2022-11-03 01:47:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:47:28,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-03 01:47:28,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:28,902 INFO L225 Difference]: With dead ends: 45066 [2022-11-03 01:47:28,922 INFO L226 Difference]: Without dead ends: 45064 [2022-11-03 01:47:28,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:47:28,932 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:28,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 303 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 01:47:29,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45064 states. [2022-11-03 01:47:31,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45064 to 45064. [2022-11-03 01:47:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45064 states, 43629 states have (on average 2.133626716175021) internal successors, (93088), 45063 states have internal predecessors, (93088), 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) [2022-11-03 01:47:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45064 states to 45064 states and 93088 transitions. [2022-11-03 01:47:31,722 INFO L78 Accepts]: Start accepts. Automaton has 45064 states and 93088 transitions. Word has length 2 [2022-11-03 01:47:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:31,723 INFO L495 AbstractCegarLoop]: Abstraction has 45064 states and 93088 transitions. [2022-11-03 01:47:31,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-03 01:47:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 45064 states and 93088 transitions. [2022-11-03 01:47:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 01:47:31,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:31,725 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-03 01:47:31,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:47:31,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:31,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:31,727 INFO L85 PathProgramCache]: Analyzing trace with hash -90036771, now seen corresponding path program 1 times [2022-11-03 01:47:31,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:31,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809178023] [2022-11-03 01:47:31,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:31,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:32,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:47:32,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:32,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809178023] [2022-11-03 01:47:32,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809178023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:32,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:32,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:47:32,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060265057] [2022-11-03 01:47:32,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:32,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:32,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:32,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:32,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:32,330 INFO L87 Difference]: Start difference. First operand 45064 states and 93088 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:47:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:33,553 INFO L93 Difference]: Finished difference Result 45065 states and 93089 transitions. [2022-11-03 01:47:33,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:47:33,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-03 01:47:33,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:33,898 INFO L225 Difference]: With dead ends: 45065 [2022-11-03 01:47:33,898 INFO L226 Difference]: Without dead ends: 45065 [2022-11-03 01:47:33,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:33,905 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:33,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 01:47:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45065 states. [2022-11-03 01:47:35,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45065 to 45065. [2022-11-03 01:47:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45065 states, 43630 states have (on average 2.1336007334402933) internal successors, (93089), 45064 states have internal predecessors, (93089), 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) [2022-11-03 01:47:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45065 states to 45065 states and 93089 transitions. [2022-11-03 01:47:35,432 INFO L78 Accepts]: Start accepts. Automaton has 45065 states and 93089 transitions. Word has length 7 [2022-11-03 01:47:35,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:35,432 INFO L495 AbstractCegarLoop]: Abstraction has 45065 states and 93089 transitions. [2022-11-03 01:47:35,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:47:35,432 INFO L276 IsEmpty]: Start isEmpty. Operand 45065 states and 93089 transitions. [2022-11-03 01:47:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 01:47:35,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:35,434 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:35,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:47:35,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:35,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:35,436 INFO L85 PathProgramCache]: Analyzing trace with hash -759234785, now seen corresponding path program 1 times [2022-11-03 01:47:35,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:35,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501788377] [2022-11-03 01:47:35,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:35,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:35,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:47:35,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:35,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501788377] [2022-11-03 01:47:35,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501788377] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:47:35,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265636736] [2022-11-03 01:47:35,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:35,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:35,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:47:35,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:47:35,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:47:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:35,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:47:35,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:47:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:47:35,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:47:35,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:47:35,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265636736] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:47:35,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1530362827] [2022-11-03 01:47:35,801 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 01:47:35,807 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:47:35,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2022-11-03 01:47:35,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525821692] [2022-11-03 01:47:35,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:47:35,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:47:35,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:35,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:47:35,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:47:35,812 INFO L87 Difference]: Start difference. First operand 45065 states and 93089 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:47:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:36,825 INFO L93 Difference]: Finished difference Result 45066 states and 93090 transitions. [2022-11-03 01:47:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:47:36,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 01:47:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:36,994 INFO L225 Difference]: With dead ends: 45066 [2022-11-03 01:47:36,994 INFO L226 Difference]: Without dead ends: 45066 [2022-11-03 01:47:36,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:47:37,005 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:37,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 01:47:37,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45066 states. [2022-11-03 01:47:38,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45066 to 45066. [2022-11-03 01:47:38,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45066 states, 43631 states have (on average 2.133574751896587) internal successors, (93090), 45065 states have internal predecessors, (93090), 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) [2022-11-03 01:47:38,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45066 states to 45066 states and 93090 transitions. [2022-11-03 01:47:38,458 INFO L78 Accepts]: Start accepts. Automaton has 45066 states and 93090 transitions. Word has length 8 [2022-11-03 01:47:38,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:38,459 INFO L495 AbstractCegarLoop]: Abstraction has 45066 states and 93090 transitions. [2022-11-03 01:47:38,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:47:38,459 INFO L276 IsEmpty]: Start isEmpty. Operand 45066 states and 93090 transitions. [2022-11-03 01:47:38,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 01:47:38,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:38,460 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-03 01:47:38,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:47:38,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:38,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:38,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:38,676 INFO L85 PathProgramCache]: Analyzing trace with hash -29536739, now seen corresponding path program 2 times [2022-11-03 01:47:38,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:38,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619576017] [2022-11-03 01:47:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:38,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:47:38,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:38,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619576017] [2022-11-03 01:47:38,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619576017] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:47:38,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77407057] [2022-11-03 01:47:38,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 01:47:38,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:38,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:47:38,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:47:38,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:47:39,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 01:47:39,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 01:47:39,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:47:39,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:47:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:47:39,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:47:39,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77407057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:39,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:47:39,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-03 01:47:39,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544687867] [2022-11-03 01:47:39,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:39,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:47:39,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:39,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:47:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:47:39,307 INFO L87 Difference]: Start difference. First operand 45066 states and 93090 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-03 01:47:40,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:40,017 INFO L93 Difference]: Finished difference Result 44662 states and 92268 transitions. [2022-11-03 01:47:40,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:47:40,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-03 01:47:40,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:40,173 INFO L225 Difference]: With dead ends: 44662 [2022-11-03 01:47:40,173 INFO L226 Difference]: Without dead ends: 44662 [2022-11-03 01:47:40,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:47:40,174 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 875 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:40,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 594 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 01:47:40,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44662 states. [2022-11-03 01:47:41,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44662 to 44662. [2022-11-03 01:47:41,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44662 states, 43262 states have (on average 2.1327724099671768) internal successors, (92268), 44661 states have internal predecessors, (92268), 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) [2022-11-03 01:47:41,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44662 states to 44662 states and 92268 transitions. [2022-11-03 01:47:41,429 INFO L78 Accepts]: Start accepts. Automaton has 44662 states and 92268 transitions. Word has length 9 [2022-11-03 01:47:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:41,429 INFO L495 AbstractCegarLoop]: Abstraction has 44662 states and 92268 transitions. [2022-11-03 01:47:41,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-03 01:47:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 44662 states and 92268 transitions. [2022-11-03 01:47:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 01:47:41,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:41,430 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:41,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:47:41,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:41,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:41,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:41,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1580329854, now seen corresponding path program 1 times [2022-11-03 01:47:41,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:41,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878752797] [2022-11-03 01:47:41,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:41,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:47:41,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:41,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878752797] [2022-11-03 01:47:41,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878752797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:41,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:41,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:47:41,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727648387] [2022-11-03 01:47:41,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:41,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:41,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:41,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:41,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:41,748 INFO L87 Difference]: Start difference. First operand 44662 states and 92268 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:47:42,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:42,387 INFO L93 Difference]: Finished difference Result 44461 states and 92058 transitions. [2022-11-03 01:47:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:47:42,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 01:47:42,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:42,520 INFO L225 Difference]: With dead ends: 44461 [2022-11-03 01:47:42,520 INFO L226 Difference]: Without dead ends: 44461 [2022-11-03 01:47:42,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:42,521 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 211 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:42,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 604 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 01:47:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44461 states. [2022-11-03 01:47:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44461 to 44461. [2022-11-03 01:47:43,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44461 states, 43095 states have (on average 2.1361642882004874) internal successors, (92058), 44460 states have internal predecessors, (92058), 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) [2022-11-03 01:47:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44461 states to 44461 states and 92058 transitions. [2022-11-03 01:47:43,690 INFO L78 Accepts]: Start accepts. Automaton has 44461 states and 92058 transitions. Word has length 10 [2022-11-03 01:47:43,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:43,691 INFO L495 AbstractCegarLoop]: Abstraction has 44461 states and 92058 transitions. [2022-11-03 01:47:43,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:47:43,691 INFO L276 IsEmpty]: Start isEmpty. Operand 44461 states and 92058 transitions. [2022-11-03 01:47:43,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 01:47:43,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:43,692 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:43,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:47:43,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:43,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:43,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1675090907, now seen corresponding path program 1 times [2022-11-03 01:47:43,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:43,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252619962] [2022-11-03 01:47:43,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:43,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:47:44,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:44,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252619962] [2022-11-03 01:47:44,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252619962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:44,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:44,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:47:44,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764107681] [2022-11-03 01:47:44,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:44,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:47:44,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:44,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:47:44,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:47:44,615 INFO L87 Difference]: Start difference. First operand 44461 states and 92058 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-11-03 01:47:48,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:48,601 INFO L93 Difference]: Finished difference Result 45711 states and 94606 transitions. [2022-11-03 01:47:48,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:47:48,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 [2022-11-03 01:47:48,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:48,735 INFO L225 Difference]: With dead ends: 45711 [2022-11-03 01:47:48,735 INFO L226 Difference]: Without dead ends: 45711 [2022-11-03 01:47:48,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:47:48,737 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 528 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 3066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:48,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 484 Invalid, 3066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 2724 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 01:47:48,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45711 states. [2022-11-03 01:47:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45711 to 45291. [2022-11-03 01:47:49,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45291 states, 43926 states have (on average 2.1342712744160632) internal successors, (93750), 45290 states have internal predecessors, (93750), 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) [2022-11-03 01:47:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45291 states to 45291 states and 93750 transitions. [2022-11-03 01:47:49,853 INFO L78 Accepts]: Start accepts. Automaton has 45291 states and 93750 transitions. Word has length 12 [2022-11-03 01:47:49,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:49,854 INFO L495 AbstractCegarLoop]: Abstraction has 45291 states and 93750 transitions. [2022-11-03 01:47:49,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-11-03 01:47:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 45291 states and 93750 transitions. [2022-11-03 01:47:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 01:47:49,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:49,856 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:49,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:47:49,856 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:49,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:49,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2125906650, now seen corresponding path program 1 times [2022-11-03 01:47:49,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:49,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197127251] [2022-11-03 01:47:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:49,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:47:50,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:50,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197127251] [2022-11-03 01:47:50,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197127251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:50,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:50,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:47:50,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325591546] [2022-11-03 01:47:50,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:50,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:47:50,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:50,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:47:50,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:47:50,455 INFO L87 Difference]: Start difference. First operand 45291 states and 93750 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2022-11-03 01:47:54,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:54,446 INFO L93 Difference]: Finished difference Result 46441 states and 96092 transitions. [2022-11-03 01:47:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:47:54,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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 13 [2022-11-03 01:47:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:54,599 INFO L225 Difference]: With dead ends: 46441 [2022-11-03 01:47:54,600 INFO L226 Difference]: Without dead ends: 46441 [2022-11-03 01:47:54,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:47:54,601 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 472 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 2588 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:54,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 459 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2588 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 01:47:54,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46441 states. [2022-11-03 01:47:55,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46441 to 46055. [2022-11-03 01:47:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46055 states, 44690 states have (on average 2.1326023718952785) internal successors, (95306), 46054 states have internal predecessors, (95306), 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) [2022-11-03 01:47:56,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46055 states to 46055 states and 95306 transitions. [2022-11-03 01:47:56,036 INFO L78 Accepts]: Start accepts. Automaton has 46055 states and 95306 transitions. Word has length 13 [2022-11-03 01:47:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:56,037 INFO L495 AbstractCegarLoop]: Abstraction has 46055 states and 95306 transitions. [2022-11-03 01:47:56,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2022-11-03 01:47:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand 46055 states and 95306 transitions. [2022-11-03 01:47:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 01:47:56,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:56,038 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:56,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:47:56,039 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting worker_fnErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:56,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash 615709765, now seen corresponding path program 1 times [2022-11-03 01:47:56,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:56,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962485842] [2022-11-03 01:47:56,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:56,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:56,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:47:56,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:56,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962485842] [2022-11-03 01:47:56,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962485842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:56,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:56,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:47:56,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545864155] [2022-11-03 01:47:56,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:56,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:56,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:56,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:56,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:56,212 INFO L87 Difference]: Start difference. First operand 46055 states and 95306 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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) [2022-11-03 01:47:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:57,931 INFO L93 Difference]: Finished difference Result 46267 states and 95738 transitions. [2022-11-03 01:47:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:47:57,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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 15 [2022-11-03 01:47:57,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:58,031 INFO L225 Difference]: With dead ends: 46267 [2022-11-03 01:47:58,032 INFO L226 Difference]: Without dead ends: 46267 [2022-11-03 01:47:58,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:58,032 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 131 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:58,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 345 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 01:47:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46267 states. [2022-11-03 01:47:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46267 to 46267. [2022-11-03 01:47:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46267 states, 44902 states have (on average 2.1321544697340875) internal successors, (95738), 46266 states have internal predecessors, (95738), 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) [2022-11-03 01:47:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46267 states to 46267 states and 95738 transitions. [2022-11-03 01:47:59,147 INFO L78 Accepts]: Start accepts. Automaton has 46267 states and 95738 transitions. Word has length 15 [2022-11-03 01:47:59,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:59,147 INFO L495 AbstractCegarLoop]: Abstraction has 46267 states and 95738 transitions. [2022-11-03 01:47:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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) [2022-11-03 01:47:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 46267 states and 95738 transitions. [2022-11-03 01:47:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 01:47:59,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:59,148 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:59,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:47:59,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:47:59,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:59,149 INFO L85 PathProgramCache]: Analyzing trace with hash -672847380, now seen corresponding path program 1 times [2022-11-03 01:47:59,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:59,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962123638] [2022-11-03 01:47:59,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:59,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:47:59,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:59,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962123638] [2022-11-03 01:47:59,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962123638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:59,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:59,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:47:59,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863278786] [2022-11-03 01:47:59,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:59,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:59,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:59,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:59,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:59,289 INFO L87 Difference]: Start difference. First operand 46267 states and 95738 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-11-03 01:48:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:00,685 INFO L93 Difference]: Finished difference Result 46459 states and 96129 transitions. [2022-11-03 01:48:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:00,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 16 [2022-11-03 01:48:00,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:00,791 INFO L225 Difference]: With dead ends: 46459 [2022-11-03 01:48:00,791 INFO L226 Difference]: Without dead ends: 46459 [2022-11-03 01:48:00,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:00,792 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 118 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:00,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 341 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 01:48:00,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46459 states. [2022-11-03 01:48:01,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46459 to 46459. [2022-11-03 01:48:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46459 states, 45095 states have (on average 2.131699744982814) internal successors, (96129), 46458 states have internal predecessors, (96129), 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) [2022-11-03 01:48:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46459 states to 46459 states and 96129 transitions. [2022-11-03 01:48:01,905 INFO L78 Accepts]: Start accepts. Automaton has 46459 states and 96129 transitions. Word has length 16 [2022-11-03 01:48:01,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:01,905 INFO L495 AbstractCegarLoop]: Abstraction has 46459 states and 96129 transitions. [2022-11-03 01:48:01,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-11-03 01:48:01,905 INFO L276 IsEmpty]: Start isEmpty. Operand 46459 states and 96129 transitions. [2022-11-03 01:48:01,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 01:48:01,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:01,907 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:01,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:48:01,907 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting worker_fnErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:48:01,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:01,908 INFO L85 PathProgramCache]: Analyzing trace with hash -370215609, now seen corresponding path program 1 times [2022-11-03 01:48:01,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:01,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804029775] [2022-11-03 01:48:01,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:01,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:02,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:48:02,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:02,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804029775] [2022-11-03 01:48:02,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804029775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:02,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:02,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:48:02,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741395280] [2022-11-03 01:48:02,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:02,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:48:02,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:02,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:48:02,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:48:02,335 INFO L87 Difference]: Start difference. First operand 46459 states and 96129 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-11-03 01:48:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:04,758 INFO L93 Difference]: Finished difference Result 46463 states and 96137 transitions. [2022-11-03 01:48:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:48:04,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 18 [2022-11-03 01:48:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:04,868 INFO L225 Difference]: With dead ends: 46463 [2022-11-03 01:48:04,868 INFO L226 Difference]: Without dead ends: 46463 [2022-11-03 01:48:04,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:48:04,869 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 1334 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:04,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 746 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-03 01:48:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46463 states. [2022-11-03 01:48:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46463 to 46443. [2022-11-03 01:48:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46443 states, 45080 states have (on average 2.1316992014196985) internal successors, (96097), 46442 states have internal predecessors, (96097), 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) [2022-11-03 01:48:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46443 states to 46443 states and 96097 transitions. [2022-11-03 01:48:06,258 INFO L78 Accepts]: Start accepts. Automaton has 46443 states and 96097 transitions. Word has length 18 [2022-11-03 01:48:06,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:06,258 INFO L495 AbstractCegarLoop]: Abstraction has 46443 states and 96097 transitions. [2022-11-03 01:48:06,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-11-03 01:48:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 46443 states and 96097 transitions. [2022-11-03 01:48:06,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 01:48:06,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:06,266 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:06,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 01:48:06,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting worker_fnErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:48:06,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:06,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1169850057, now seen corresponding path program 1 times [2022-11-03 01:48:06,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:06,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573161148] [2022-11-03 01:48:06,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:06,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:06,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573161148] [2022-11-03 01:48:06,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573161148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:06,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:06,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:48:06,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847774393] [2022-11-03 01:48:06,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:06,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:06,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:06,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:06,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:06,385 INFO L87 Difference]: Start difference. First operand 46443 states and 96097 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-03 01:48:07,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:07,639 INFO L93 Difference]: Finished difference Result 47473 states and 98197 transitions. [2022-11-03 01:48:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:07,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 18 [2022-11-03 01:48:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:07,736 INFO L225 Difference]: With dead ends: 47473 [2022-11-03 01:48:07,737 INFO L226 Difference]: Without dead ends: 47473 [2022-11-03 01:48:07,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:07,738 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 134 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:07,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 01:48:07,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47473 states. [2022-11-03 01:48:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47473 to 46635. [2022-11-03 01:48:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46635 states, 45274 states have (on average 2.131223218624376) internal successors, (96489), 46634 states have internal predecessors, (96489), 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) [2022-11-03 01:48:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46635 states to 46635 states and 96489 transitions. [2022-11-03 01:48:08,844 INFO L78 Accepts]: Start accepts. Automaton has 46635 states and 96489 transitions. Word has length 18 [2022-11-03 01:48:08,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:08,844 INFO L495 AbstractCegarLoop]: Abstraction has 46635 states and 96489 transitions. [2022-11-03 01:48:08,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-03 01:48:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 46635 states and 96489 transitions. [2022-11-03 01:48:08,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 01:48:08,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:08,846 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:08,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 01:48:08,846 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:48:08,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:08,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1919183051, now seen corresponding path program 1 times [2022-11-03 01:48:08,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:08,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905709127] [2022-11-03 01:48:08,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:08,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:09,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:09,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:09,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905709127] [2022-11-03 01:48:09,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905709127] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:09,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260300647] [2022-11-03 01:48:09,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:09,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:09,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:09,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:48:09,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:48:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:09,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 01:48:09,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:48:09,531 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:48:09,532 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-03 01:48:09,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 01:48:09,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 01:48:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:09,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:48:09,709 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1300 (Array Int Int))) (= (select (select (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| v_ArrVal_1300) |c_~#pre~0.base|) (+ |c_~#pre~0.offset| |c_ULTIMATE.start_worker_fn_~tid~0#1|)) |c_ULTIMATE.start_worker_fn_#t~nondet18#1|)) is different from false [2022-11-03 01:48:09,725 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:48:09,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-11-03 01:48:09,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-11-03 01:48:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:09,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260300647] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:48:09,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1941810358] [2022-11-03 01:48:09,781 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 01:48:09,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:48:09,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-11-03 01:48:09,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693934830] [2022-11-03 01:48:09,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:48:09,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 01:48:09,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:09,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 01:48:09,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=119, Unknown=1, NotChecked=22, Total=182 [2022-11-03 01:48:09,785 INFO L87 Difference]: Start difference. First operand 46635 states and 96489 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 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) [2022-11-03 01:48:14,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:14,157 INFO L93 Difference]: Finished difference Result 46639 states and 96497 transitions. [2022-11-03 01:48:14,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 01:48:14,157 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 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 18 [2022-11-03 01:48:14,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:14,255 INFO L225 Difference]: With dead ends: 46639 [2022-11-03 01:48:14,255 INFO L226 Difference]: Without dead ends: 46639 [2022-11-03 01:48:14,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=194, Unknown=1, NotChecked=30, Total=306 [2022-11-03 01:48:14,256 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 3379 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 3302 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 4200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 875 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:14,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 1009 Invalid, 4200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3302 Invalid, 0 Unknown, 875 Unchecked, 4.0s Time] [2022-11-03 01:48:14,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46639 states. [2022-11-03 01:48:15,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46639 to 46619. [2022-11-03 01:48:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46619 states, 45259 states have (on average 2.1312225192779337) internal successors, (96457), 46618 states have internal predecessors, (96457), 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) [2022-11-03 01:48:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46619 states to 46619 states and 96457 transitions. [2022-11-03 01:48:15,438 INFO L78 Accepts]: Start accepts. Automaton has 46619 states and 96457 transitions. Word has length 18 [2022-11-03 01:48:15,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:15,438 INFO L495 AbstractCegarLoop]: Abstraction has 46619 states and 96457 transitions. [2022-11-03 01:48:15,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 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) [2022-11-03 01:48:15,438 INFO L276 IsEmpty]: Start isEmpty. Operand 46619 states and 96457 transitions. [2022-11-03 01:48:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 01:48:15,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:15,439 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:15,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:48:15,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-03 01:48:15,640 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:48:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:15,641 INFO L85 PathProgramCache]: Analyzing trace with hash -153756105, now seen corresponding path program 1 times [2022-11-03 01:48:15,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:15,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094419886] [2022-11-03 01:48:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:15,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:15,877 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:48:15,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:15,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094419886] [2022-11-03 01:48:15,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094419886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:15,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:15,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:48:15,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073532373] [2022-11-03 01:48:15,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:15,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:15,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:15,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:15,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:15,883 INFO L87 Difference]: Start difference. First operand 46619 states and 96457 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-03 01:48:17,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:17,467 INFO L93 Difference]: Finished difference Result 47558 states and 98370 transitions. [2022-11-03 01:48:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:17,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2022-11-03 01:48:17,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:17,587 INFO L225 Difference]: With dead ends: 47558 [2022-11-03 01:48:17,587 INFO L226 Difference]: Without dead ends: 47558 [2022-11-03 01:48:17,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:17,588 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 121 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:17,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 338 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 01:48:17,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47558 states. [2022-11-03 01:48:18,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47558 to 46792. [2022-11-03 01:48:18,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46792 states, 45435 states have (on average 2.1307362165731263) internal successors, (96810), 46791 states have internal predecessors, (96810), 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) [2022-11-03 01:48:18,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46792 states to 46792 states and 96810 transitions. [2022-11-03 01:48:18,887 INFO L78 Accepts]: Start accepts. Automaton has 46792 states and 96810 transitions. Word has length 19 [2022-11-03 01:48:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:18,887 INFO L495 AbstractCegarLoop]: Abstraction has 46792 states and 96810 transitions. [2022-11-03 01:48:18,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-03 01:48:18,888 INFO L276 IsEmpty]: Start isEmpty. Operand 46792 states and 96810 transitions. [2022-11-03 01:48:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 01:48:18,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:18,889 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:18,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 01:48:18,889 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:48:18,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:18,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1784255367, now seen corresponding path program 1 times [2022-11-03 01:48:18,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:18,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812023419] [2022-11-03 01:48:18,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:18,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:19,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:48:19,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:19,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812023419] [2022-11-03 01:48:19,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812023419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:19,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:19,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 01:48:19,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652102249] [2022-11-03 01:48:19,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:19,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 01:48:19,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:19,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 01:48:19,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:48:19,648 INFO L87 Difference]: Start difference. First operand 46792 states and 96810 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2022-11-03 01:48:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:25,486 INFO L93 Difference]: Finished difference Result 53114 states and 109858 transitions. [2022-11-03 01:48:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 01:48:25,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 21 [2022-11-03 01:48:25,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:25,654 INFO L225 Difference]: With dead ends: 53114 [2022-11-03 01:48:25,654 INFO L226 Difference]: Without dead ends: 53114 [2022-11-03 01:48:25,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:48:25,655 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 1756 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 4487 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 4972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 4487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:25,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 935 Invalid, 4972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 4487 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 01:48:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53114 states. [2022-11-03 01:48:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53114 to 46602. [2022-11-03 01:48:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46602 states, 45250 states have (on average 2.130939226519337) internal successors, (96425), 46601 states have internal predecessors, (96425), 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) [2022-11-03 01:48:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46602 states to 46602 states and 96425 transitions. [2022-11-03 01:48:26,696 INFO L78 Accepts]: Start accepts. Automaton has 46602 states and 96425 transitions. Word has length 21 [2022-11-03 01:48:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:26,697 INFO L495 AbstractCegarLoop]: Abstraction has 46602 states and 96425 transitions. [2022-11-03 01:48:26,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2022-11-03 01:48:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 46602 states and 96425 transitions. [2022-11-03 01:48:26,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 01:48:26,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:26,698 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:26,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 01:48:26,698 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting worker_fnErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:48:26,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:26,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1622817980, now seen corresponding path program 1 times [2022-11-03 01:48:26,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:26,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840363444] [2022-11-03 01:48:26,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:26,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:26,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:26,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:26,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840363444] [2022-11-03 01:48:26,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840363444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:26,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:26,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:48:26,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007456290] [2022-11-03 01:48:26,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:26,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:26,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:26,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:26,849 INFO L87 Difference]: Start difference. First operand 46602 states and 96425 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-03 01:48:28,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:28,245 INFO L93 Difference]: Finished difference Result 46796 states and 96821 transitions. [2022-11-03 01:48:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:28,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 21 [2022-11-03 01:48:28,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:28,342 INFO L225 Difference]: With dead ends: 46796 [2022-11-03 01:48:28,342 INFO L226 Difference]: Without dead ends: 46796 [2022-11-03 01:48:28,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:28,344 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 130 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:28,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 344 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 01:48:28,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46796 states. [2022-11-03 01:48:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46796 to 46796. [2022-11-03 01:48:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46796 states, 45446 states have (on average 2.1304625269550677) internal successors, (96821), 46795 states have internal predecessors, (96821), 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) [2022-11-03 01:48:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46796 states to 46796 states and 96821 transitions. [2022-11-03 01:48:29,648 INFO L78 Accepts]: Start accepts. Automaton has 46796 states and 96821 transitions. Word has length 21 [2022-11-03 01:48:29,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:29,648 INFO L495 AbstractCegarLoop]: Abstraction has 46796 states and 96821 transitions. [2022-11-03 01:48:29,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-03 01:48:29,649 INFO L276 IsEmpty]: Start isEmpty. Operand 46796 states and 96821 transitions. [2022-11-03 01:48:29,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 01:48:29,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:29,650 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:29,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 01:48:29,651 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting worker_fnErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:48:29,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:29,651 INFO L85 PathProgramCache]: Analyzing trace with hash 882083074, now seen corresponding path program 1 times [2022-11-03 01:48:29,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:29,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657703016] [2022-11-03 01:48:29,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:29,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:29,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:29,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:29,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657703016] [2022-11-03 01:48:29,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657703016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:29,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:29,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:48:29,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60384660] [2022-11-03 01:48:29,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:29,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:48:29,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:29,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:48:29,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:29,775 INFO L87 Difference]: Start difference. First operand 46796 states and 96821 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-03 01:48:30,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:30,566 INFO L93 Difference]: Finished difference Result 48952 states and 101213 transitions. [2022-11-03 01:48:30,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:48:30,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 21 [2022-11-03 01:48:30,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:30,674 INFO L225 Difference]: With dead ends: 48952 [2022-11-03 01:48:30,675 INFO L226 Difference]: Without dead ends: 48952 [2022-11-03 01:48:30,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:48:30,675 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 234 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:30,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 751 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 01:48:31,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48952 states. [2022-11-03 01:48:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48952 to 47017. [2022-11-03 01:48:31,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47017 states, 45667 states have (on average 2.130006350318611) internal successors, (97271), 47016 states have internal predecessors, (97271), 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) [2022-11-03 01:48:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47017 states to 47017 states and 97271 transitions. [2022-11-03 01:48:31,890 INFO L78 Accepts]: Start accepts. Automaton has 47017 states and 97271 transitions. Word has length 21 [2022-11-03 01:48:31,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:31,890 INFO L495 AbstractCegarLoop]: Abstraction has 47017 states and 97271 transitions. [2022-11-03 01:48:31,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-03 01:48:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 47017 states and 97271 transitions. [2022-11-03 01:48:31,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 01:48:31,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:31,892 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:31,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 01:48:31,892 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-03 01:48:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:31,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1185808956, now seen corresponding path program 1 times [2022-11-03 01:48:31,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:31,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33501024] [2022-11-03 01:48:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:31,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:48:34,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:34,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33501024] [2022-11-03 01:48:34,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33501024] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:34,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29073653] [2022-11-03 01:48:34,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:34,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:34,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:34,681 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:48:34,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc5fa86-5dab-4b81-be2b-edb75485bc24/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process