./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW --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 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb --- 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-4e7fbc6 [2022-11-23 14:38:03,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:38:03,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:38:03,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:38:03,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:38:03,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:38:03,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:38:03,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:38:03,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:38:03,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:38:03,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:38:03,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:38:03,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:38:03,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:38:03,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:38:03,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:38:03,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:38:03,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:38:03,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:38:03,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:38:03,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:38:03,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:38:03,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:38:03,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:38:03,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:38:03,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:38:03,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:38:03,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:38:03,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:38:03,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:38:03,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:38:03,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:38:03,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:38:03,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:38:03,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:38:03,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:38:03,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:38:03,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:38:03,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:38:03,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:38:03,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:38:03,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:38:03,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:38:03,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:38:03,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:38:03,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:38:03,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:38:03,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:38:03,584 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:38:03,585 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:38:03,585 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:38:03,585 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:38:03,586 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:38:03,587 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:38:03,587 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:38:03,587 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:38:03,587 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:38:03,588 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:38:03,588 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:38:03,588 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:38:03,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:38:03,589 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:38:03,590 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:38:03,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:38:03,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:38:03,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:38:03,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:38:03,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:38:03,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:38:03,592 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:38:03,592 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:38:03,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:38:03,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:38:03,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:38:03,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:38:03,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:38:03,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:38:03,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:38:03,594 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:38:03,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:38:03,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:38:03,595 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:38:03,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:38:03,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:38:03,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:38:03,596 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_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2022-11-23 14:38:03,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:38:03,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:38:03,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:38:03,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:38:03,942 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:38:03,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2022-11-23 14:38:07,010 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:38:07,278 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:38:07,278 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2022-11-23 14:38:07,295 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/data/0cf63ad15/82c7cff04d18442abf0d454b512599da/FLAGc02464e69 [2022-11-23 14:38:07,309 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/data/0cf63ad15/82c7cff04d18442abf0d454b512599da [2022-11-23 14:38:07,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:38:07,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:38:07,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:38:07,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:38:07,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:38:07,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:07,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@685af82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07, skipping insertion in model container [2022-11-23 14:38:07,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:07,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:38:07,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:38:07,506 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:38:07,755 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30448,30461] [2022-11-23 14:38:07,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30811,30824] [2022-11-23 14:38:07,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31483,31496] [2022-11-23 14:38:07,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31534,31547] [2022-11-23 14:38:07,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31683,31696] [2022-11-23 14:38:07,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31760,31773] [2022-11-23 14:38:07,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31807,31820] [2022-11-23 14:38:07,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31916,31929] [2022-11-23 14:38:07,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32035,32048] [2022-11-23 14:38:07,824 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32083,32096] [2022-11-23 14:38:07,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32160,32173] [2022-11-23 14:38:07,830 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32286,32299] [2022-11-23 14:38:07,839 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32897,32910] [2022-11-23 14:38:07,842 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32974,32987] [2022-11-23 14:38:07,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:38:07,859 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:38:07,871 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:38:07,889 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30448,30461] [2022-11-23 14:38:07,893 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30811,30824] [2022-11-23 14:38:07,901 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31483,31496] [2022-11-23 14:38:07,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31534,31547] [2022-11-23 14:38:07,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31683,31696] [2022-11-23 14:38:07,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31760,31773] [2022-11-23 14:38:07,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31807,31820] [2022-11-23 14:38:07,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31916,31929] [2022-11-23 14:38:07,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32035,32048] [2022-11-23 14:38:07,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32083,32096] [2022-11-23 14:38:07,927 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32160,32173] [2022-11-23 14:38:07,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32286,32299] [2022-11-23 14:38:07,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32897,32910] [2022-11-23 14:38:07,937 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32974,32987] [2022-11-23 14:38:07,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:38:07,981 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:38:07,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07 WrapperNode [2022-11-23 14:38:07,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:38:07,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:38:07,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:38:07,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:38:07,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,068 INFO L138 Inliner]: procedures = 174, calls = 73, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 805 [2022-11-23 14:38:08,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:38:08,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:38:08,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:38:08,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:38:08,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:38:08,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:38:08,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:38:08,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:38:08,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (1/1) ... [2022-11-23 14:38:08,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:38:08,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:38:08,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:38:08,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:38:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:38:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:38:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 14:38:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-23 14:38:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-23 14:38:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:38:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:38:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:38:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:38:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:38:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:38:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:38:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:38:08,353 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:38:08,569 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:38:08,578 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:38:09,825 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:38:09,845 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:38:09,846 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-23 14:38:09,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:09 BoogieIcfgContainer [2022-11-23 14:38:09,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:38:09,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:38:09,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:38:09,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:38:09,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:38:07" (1/3) ... [2022-11-23 14:38:09,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293162ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:38:09, skipping insertion in model container [2022-11-23 14:38:09,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:07" (2/3) ... [2022-11-23 14:38:09,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293162ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:38:09, skipping insertion in model container [2022-11-23 14:38:09,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:09" (3/3) ... [2022-11-23 14:38:09,865 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2022-11-23 14:38:09,876 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:38:09,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:38:09,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-23 14:38:09,888 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:38:10,148 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 14:38:10,209 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:38:10,233 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 868 places, 928 transitions, 1864 flow [2022-11-23 14:38:10,237 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 868 places, 928 transitions, 1864 flow [2022-11-23 14:38:10,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 868 places, 928 transitions, 1864 flow [2022-11-23 14:38:11,017 INFO L130 PetriNetUnfolder]: 95/1352 cut-off events. [2022-11-23 14:38:11,018 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 14:38:11,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 1352 events. 95/1352 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4534 event pairs, 0 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 794. Up to 4 conditions per place. [2022-11-23 14:38:11,183 INFO L119 LiptonReduction]: Number of co-enabled transitions 313900 [2022-11-23 14:39:01,372 WARN L233 SmtUtils]: Spent 5.84s 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) [2022-11-23 14:39:09,693 WARN L233 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 115 DAG size of output: 109 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:39:54,825 WARN L233 SmtUtils]: Spent 33.31s on a formula simplification. DAG size of input: 155 DAG size of output: 154 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:40:10,719 WARN L233 SmtUtils]: Spent 15.89s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:40:46,670 WARN L233 SmtUtils]: Spent 35.95s on a formula simplification. DAG size of input: 158 DAG size of output: 157 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:41:01,232 WARN L233 SmtUtils]: Spent 14.56s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:42:24,678 WARN L233 SmtUtils]: Spent 1.38m on a formula simplification. DAG size of input: 185 DAG size of output: 183 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:42:49,212 WARN L233 SmtUtils]: Spent 24.53s on a formula simplification that was a NOOP. DAG size: 163 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:44:33,703 WARN L233 SmtUtils]: Spent 1.74m on a formula simplification. DAG size of input: 197 DAG size of output: 193 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:45:02,576 WARN L233 SmtUtils]: Spent 28.87s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:45:25,562 WARN L233 SmtUtils]: Spent 22.51s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:45:49,205 WARN L233 SmtUtils]: Spent 23.64s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:46:17,698 WARN L233 SmtUtils]: Spent 28.49s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:46:46,750 WARN L233 SmtUtils]: Spent 29.05s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:46:52,458 INFO L134 LiptonReduction]: Checked pairs total: 5629627 [2022-11-23 14:46:52,458 INFO L136 LiptonReduction]: Total number of compositions: 705 [2022-11-23 14:46:52,470 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 439 places, 475 transitions, 958 flow [2022-11-23 14:46:53,700 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45722 states, 44278 states have (on average 2.229052802746285) internal successors, (98698), 45721 states have internal predecessors, (98698), 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) [2022-11-23 14:46:53,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:46:53,734 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;@71feb96f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:46:53,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2022-11-23 14:46:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 45722 states, 44278 states have (on average 2.229052802746285) internal successors, (98698), 45721 states have internal predecessors, (98698), 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) [2022-11-23 14:46:53,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-23 14:46:53,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:53,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-23 14:46:53,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:46:53,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:53,833 INFO L85 PathProgramCache]: Analyzing trace with hash 100943, now seen corresponding path program 1 times [2022-11-23 14:46:53,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:53,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929105883] [2022-11-23 14:46:53,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:53,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:54,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:54,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929105883] [2022-11-23 14:46:54,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929105883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:54,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:54,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:46:54,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329081097] [2022-11-23 14:46:54,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:54,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:46:54,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:54,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:46:54,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:46:54,185 INFO L87 Difference]: Start difference. First operand has 45722 states, 44278 states have (on average 2.229052802746285) internal successors, (98698), 45721 states have internal predecessors, (98698), 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) [2022-11-23 14:46:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:55,829 INFO L93 Difference]: Finished difference Result 45715 states and 94411 transitions. [2022-11-23 14:46:55,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:46:55,832 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 [2022-11-23 14:46:55,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:56,072 INFO L225 Difference]: With dead ends: 45715 [2022-11-23 14:46:56,072 INFO L226 Difference]: Without dead ends: 45713 [2022-11-23 14:46:56,073 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 [2022-11-23 14:46:56,077 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:56,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 293 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 14:46:56,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45713 states. [2022-11-23 14:46:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45713 to 45713. [2022-11-23 14:46:58,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45713 states, 44278 states have (on average 2.132164957766837) internal successors, (94408), 45712 states have internal predecessors, (94408), 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) [2022-11-23 14:46:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45713 states to 45713 states and 94408 transitions. [2022-11-23 14:46:58,882 INFO L78 Accepts]: Start accepts. Automaton has 45713 states and 94408 transitions. Word has length 2 [2022-11-23 14:46:58,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:58,883 INFO L495 AbstractCegarLoop]: Abstraction has 45713 states and 94408 transitions. [2022-11-23 14:46:58,883 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) [2022-11-23 14:46:58,883 INFO L276 IsEmpty]: Start isEmpty. Operand 45713 states and 94408 transitions. [2022-11-23 14:46:58,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:46:58,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:58,884 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-23 14:46:58,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:46:58,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:46:58,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:58,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1856443043, now seen corresponding path program 1 times [2022-11-23 14:46:58,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:58,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910132029] [2022-11-23 14:46:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:58,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:59,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:46:59,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:59,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910132029] [2022-11-23 14:46:59,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910132029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:59,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:59,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:46:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319395055] [2022-11-23 14:46:59,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:59,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:46:59,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:59,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:46:59,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:46:59,272 INFO L87 Difference]: Start difference. First operand 45713 states and 94408 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) [2022-11-23 14:47:01,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:01,242 INFO L93 Difference]: Finished difference Result 45714 states and 94409 transitions. [2022-11-23 14:47:01,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:01,243 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 [2022-11-23 14:47:01,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:01,507 INFO L225 Difference]: With dead ends: 45714 [2022-11-23 14:47:01,508 INFO L226 Difference]: Without dead ends: 45714 [2022-11-23 14:47:01,523 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 [2022-11-23 14:47:01,524 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:01,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 586 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 14:47:01,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45714 states. [2022-11-23 14:47:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45714 to 45714. [2022-11-23 14:47:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45714 states, 44279 states have (on average 2.1321393888750877) internal successors, (94409), 45713 states have internal predecessors, (94409), 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) [2022-11-23 14:47:03,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45714 states to 45714 states and 94409 transitions. [2022-11-23 14:47:03,862 INFO L78 Accepts]: Start accepts. Automaton has 45714 states and 94409 transitions. Word has length 7 [2022-11-23 14:47:03,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:03,879 INFO L495 AbstractCegarLoop]: Abstraction has 45714 states and 94409 transitions. [2022-11-23 14:47:03,879 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) [2022-11-23 14:47:03,881 INFO L276 IsEmpty]: Start isEmpty. Operand 45714 states and 94409 transitions. [2022-11-23 14:47:03,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:47:03,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:03,883 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:03,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:47:03,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:03,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:03,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1846733072, now seen corresponding path program 1 times [2022-11-23 14:47:03,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:03,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152187501] [2022-11-23 14:47:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:03,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:47:04,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:04,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152187501] [2022-11-23 14:47:04,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152187501] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:47:04,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402560827] [2022-11-23 14:47:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:04,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:04,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:47:04,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:47:04,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:47:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:04,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:47:04,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:04,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:47:04,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:47:04,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:47:04,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402560827] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:47:04,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1942777593] [2022-11-23 14:47:04,359 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) [2022-11-23 14:47:04,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:47:04,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2022-11-23 14:47:04,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326588923] [2022-11-23 14:47:04,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:47:04,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:47:04,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:47:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:47:04,364 INFO L87 Difference]: Start difference. First operand 45714 states and 94409 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) [2022-11-23 14:47:06,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:06,324 INFO L93 Difference]: Finished difference Result 45715 states and 94410 transitions. [2022-11-23 14:47:06,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:47:06,331 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 [2022-11-23 14:47:06,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:06,632 INFO L225 Difference]: With dead ends: 45715 [2022-11-23 14:47:06,632 INFO L226 Difference]: Without dead ends: 45715 [2022-11-23 14:47:06,632 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 [2022-11-23 14:47:06,633 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:06,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 586 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 14:47:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45715 states. [2022-11-23 14:47:07,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45715 to 45715. [2022-11-23 14:47:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45715 states, 44280 states have (on average 2.1321138211382116) internal successors, (94410), 45714 states have internal predecessors, (94410), 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) [2022-11-23 14:47:07,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45715 states to 45715 states and 94410 transitions. [2022-11-23 14:47:07,994 INFO L78 Accepts]: Start accepts. Automaton has 45715 states and 94410 transitions. Word has length 8 [2022-11-23 14:47:07,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:07,995 INFO L495 AbstractCegarLoop]: Abstraction has 45715 states and 94410 transitions. [2022-11-23 14:47:07,995 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) [2022-11-23 14:47:07,995 INFO L276 IsEmpty]: Start isEmpty. Operand 45715 states and 94410 transitions. [2022-11-23 14:47:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:47:07,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:07,996 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-23 14:47:08,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:47:08,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:08,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:08,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:08,203 INFO L85 PathProgramCache]: Analyzing trace with hash 681075645, now seen corresponding path program 2 times [2022-11-23 14:47:08,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:08,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923057180] [2022-11-23 14:47:08,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:08,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:08,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:08,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923057180] [2022-11-23 14:47:08,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923057180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:47:08,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566035918] [2022-11-23 14:47:08,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:47:08,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:08,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:47:08,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:47:08,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:47:09,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 14:47:09,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:47:09,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:47:09,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:09,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:47:09,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566035918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:09,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:47:09,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-23 14:47:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224922950] [2022-11-23 14:47:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:09,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:47:09,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:09,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:47:09,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:47:09,446 INFO L87 Difference]: Start difference. First operand 45715 states and 94410 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) [2022-11-23 14:47:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:11,207 INFO L93 Difference]: Finished difference Result 45307 states and 93580 transitions. [2022-11-23 14:47:11,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:47:11,207 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 [2022-11-23 14:47:11,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:11,379 INFO L225 Difference]: With dead ends: 45307 [2022-11-23 14:47:11,379 INFO L226 Difference]: Without dead ends: 45307 [2022-11-23 14:47:11,379 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 [2022-11-23 14:47:11,382 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 651 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:11,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 572 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 14:47:11,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45307 states. [2022-11-23 14:47:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45307 to 45307. [2022-11-23 14:47:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45307 states, 43907 states have (on average 2.131323023663653) internal successors, (93580), 45306 states have internal predecessors, (93580), 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) [2022-11-23 14:47:12,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45307 states to 45307 states and 93580 transitions. [2022-11-23 14:47:12,502 INFO L78 Accepts]: Start accepts. Automaton has 45307 states and 93580 transitions. Word has length 9 [2022-11-23 14:47:12,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:12,503 INFO L495 AbstractCegarLoop]: Abstraction has 45307 states and 93580 transitions. [2022-11-23 14:47:12,503 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) [2022-11-23 14:47:12,503 INFO L276 IsEmpty]: Start isEmpty. Operand 45307 states and 93580 transitions. [2022-11-23 14:47:12,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:47:12,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:12,504 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:12,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:47:12,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:12,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:12,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:12,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1513537412, now seen corresponding path program 1 times [2022-11-23 14:47:12,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:12,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722537160] [2022-11-23 14:47:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:12,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:12,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:12,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722537160] [2022-11-23 14:47:12,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722537160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:12,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:12,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:47:12,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965002989] [2022-11-23 14:47:12,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:12,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:12,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:12,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:12,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:12,801 INFO L87 Difference]: Start difference. First operand 45307 states and 93580 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) [2022-11-23 14:47:14,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:14,171 INFO L93 Difference]: Finished difference Result 45105 states and 93369 transitions. [2022-11-23 14:47:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:14,172 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 [2022-11-23 14:47:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:14,255 INFO L225 Difference]: With dead ends: 45105 [2022-11-23 14:47:14,255 INFO L226 Difference]: Without dead ends: 45105 [2022-11-23 14:47:14,255 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 [2022-11-23 14:47:14,256 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 213 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:14,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 584 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-23 14:47:14,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45105 states. [2022-11-23 14:47:15,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45105 to 45105. [2022-11-23 14:47:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45105 states, 43739 states have (on average 2.1346852923020645) internal successors, (93369), 45104 states have internal predecessors, (93369), 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) [2022-11-23 14:47:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45105 states to 45105 states and 93369 transitions. [2022-11-23 14:47:15,449 INFO L78 Accepts]: Start accepts. Automaton has 45105 states and 93369 transitions. Word has length 10 [2022-11-23 14:47:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:15,449 INFO L495 AbstractCegarLoop]: Abstraction has 45105 states and 93369 transitions. [2022-11-23 14:47:15,449 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) [2022-11-23 14:47:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 45105 states and 93369 transitions. [2022-11-23 14:47:15,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 14:47:15,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:15,450 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:15,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:47:15,450 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:15,451 INFO L85 PathProgramCache]: Analyzing trace with hash 702481376, now seen corresponding path program 1 times [2022-11-23 14:47:15,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:15,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776070458] [2022-11-23 14:47:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:16,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:16,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776070458] [2022-11-23 14:47:16,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776070458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:16,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:16,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:47:16,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744919173] [2022-11-23 14:47:16,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:16,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:47:16,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:16,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:47:16,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:47:16,227 INFO L87 Difference]: Start difference. First operand 45105 states and 93369 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) [2022-11-23 14:47:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:21,018 INFO L93 Difference]: Finished difference Result 46361 states and 95929 transitions. [2022-11-23 14:47:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:47:21,018 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 [2022-11-23 14:47:21,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:21,098 INFO L225 Difference]: With dead ends: 46361 [2022-11-23 14:47:21,098 INFO L226 Difference]: Without dead ends: 46361 [2022-11-23 14:47:21,098 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 [2022-11-23 14:47:21,099 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 532 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:21,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 438 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 14:47:21,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46361 states. [2022-11-23 14:47:21,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46361 to 45939. [2022-11-23 14:47:21,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45939 states, 44574 states have (on average 2.132835285143806) internal successors, (95069), 45938 states have internal predecessors, (95069), 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) [2022-11-23 14:47:22,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45939 states to 45939 states and 95069 transitions. [2022-11-23 14:47:22,036 INFO L78 Accepts]: Start accepts. Automaton has 45939 states and 95069 transitions. Word has length 12 [2022-11-23 14:47:22,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:22,036 INFO L495 AbstractCegarLoop]: Abstraction has 45939 states and 95069 transitions. [2022-11-23 14:47:22,037 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) [2022-11-23 14:47:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 45939 states and 95069 transitions. [2022-11-23 14:47:22,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 14:47:22,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:22,038 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:22,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:47:22,038 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:22,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:22,039 INFO L85 PathProgramCache]: Analyzing trace with hash 259291769, now seen corresponding path program 1 times [2022-11-23 14:47:22,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:22,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331725771] [2022-11-23 14:47:22,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:22,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:47:22,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:22,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331725771] [2022-11-23 14:47:22,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331725771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:22,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:22,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:47:22,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777007786] [2022-11-23 14:47:22,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:22,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:47:22,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:22,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:47:22,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:47:22,505 INFO L87 Difference]: Start difference. First operand 45939 states and 95069 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) [2022-11-23 14:47:27,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:27,387 INFO L93 Difference]: Finished difference Result 47101 states and 97435 transitions. [2022-11-23 14:47:27,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:47:27,387 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 [2022-11-23 14:47:27,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:27,493 INFO L225 Difference]: With dead ends: 47101 [2022-11-23 14:47:27,494 INFO L226 Difference]: Without dead ends: 47101 [2022-11-23 14:47:27,494 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 [2022-11-23 14:47:27,495 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 480 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 2660 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 2978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:27,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 413 Invalid, 2978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 14:47:27,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47101 states. [2022-11-23 14:47:28,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47101 to 46711. [2022-11-23 14:47:28,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46711 states, 45346 states have (on average 2.131191284788074) internal successors, (96641), 46710 states have internal predecessors, (96641), 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) [2022-11-23 14:47:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46711 states to 46711 states and 96641 transitions. [2022-11-23 14:47:28,446 INFO L78 Accepts]: Start accepts. Automaton has 46711 states and 96641 transitions. Word has length 13 [2022-11-23 14:47:28,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:28,446 INFO L495 AbstractCegarLoop]: Abstraction has 46711 states and 96641 transitions. [2022-11-23 14:47:28,446 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) [2022-11-23 14:47:28,446 INFO L276 IsEmpty]: Start isEmpty. Operand 46711 states and 96641 transitions. [2022-11-23 14:47:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 14:47:28,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:28,447 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:28,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:47:28,448 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting worker_fnErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:28,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1730349245, now seen corresponding path program 1 times [2022-11-23 14:47:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:28,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897139079] [2022-11-23 14:47:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:28,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:28,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897139079] [2022-11-23 14:47:28,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897139079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:28,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:28,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:47:28,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310218778] [2022-11-23 14:47:28,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:28,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:28,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:28,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:28,607 INFO L87 Difference]: Start difference. First operand 46711 states and 96641 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) [2022-11-23 14:47:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:31,286 INFO L93 Difference]: Finished difference Result 46924 states and 97075 transitions. [2022-11-23 14:47:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:31,287 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 [2022-11-23 14:47:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:31,392 INFO L225 Difference]: With dead ends: 46924 [2022-11-23 14:47:31,392 INFO L226 Difference]: Without dead ends: 46924 [2022-11-23 14:47:31,392 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 [2022-11-23 14:47:31,393 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 132 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:31,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 327 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 14:47:31,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46924 states. [2022-11-23 14:47:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46924 to 46924. [2022-11-23 14:47:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46924 states, 45559 states have (on average 2.1307535283917556) internal successors, (97075), 46923 states have internal predecessors, (97075), 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) [2022-11-23 14:47:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46924 states to 46924 states and 97075 transitions. [2022-11-23 14:47:32,347 INFO L78 Accepts]: Start accepts. Automaton has 46924 states and 97075 transitions. Word has length 15 [2022-11-23 14:47:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:32,347 INFO L495 AbstractCegarLoop]: Abstraction has 46924 states and 97075 transitions. [2022-11-23 14:47:32,347 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) [2022-11-23 14:47:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 46924 states and 97075 transitions. [2022-11-23 14:47:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 14:47:32,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:32,348 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:32,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:47:32,349 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:32,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:32,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2052168617, now seen corresponding path program 1 times [2022-11-23 14:47:32,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:32,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599362632] [2022-11-23 14:47:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:32,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:47:32,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:32,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599362632] [2022-11-23 14:47:32,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599362632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:32,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:32,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:47:32,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422610830] [2022-11-23 14:47:32,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:32,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:32,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:32,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:32,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:32,514 INFO L87 Difference]: Start difference. First operand 46924 states and 97075 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) [2022-11-23 14:47:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:34,945 INFO L93 Difference]: Finished difference Result 47118 states and 97470 transitions. [2022-11-23 14:47:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:34,945 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 [2022-11-23 14:47:34,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:35,041 INFO L225 Difference]: With dead ends: 47118 [2022-11-23 14:47:35,041 INFO L226 Difference]: Without dead ends: 47118 [2022-11-23 14:47:35,042 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 [2022-11-23 14:47:35,042 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:35,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 323 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 14:47:35,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47118 states. [2022-11-23 14:47:36,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47118 to 47118. [2022-11-23 14:47:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47118 states, 45754 states have (on average 2.130305547055995) internal successors, (97470), 47117 states have internal predecessors, (97470), 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) [2022-11-23 14:47:36,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47118 states to 47118 states and 97470 transitions. [2022-11-23 14:47:36,278 INFO L78 Accepts]: Start accepts. Automaton has 47118 states and 97470 transitions. Word has length 16 [2022-11-23 14:47:36,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:36,278 INFO L495 AbstractCegarLoop]: Abstraction has 47118 states and 97470 transitions. [2022-11-23 14:47:36,278 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) [2022-11-23 14:47:36,278 INFO L276 IsEmpty]: Start isEmpty. Operand 47118 states and 97470 transitions. [2022-11-23 14:47:36,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:47:36,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:36,280 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:36,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:47:36,280 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting worker_fnErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:36,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:36,281 INFO L85 PathProgramCache]: Analyzing trace with hash -422862537, now seen corresponding path program 1 times [2022-11-23 14:47:36,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:36,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039611456] [2022-11-23 14:47:36,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:36,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:47:37,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039611456] [2022-11-23 14:47:37,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039611456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:37,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:37,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:47:37,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996371788] [2022-11-23 14:47:37,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:37,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:47:37,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:37,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:47:37,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:47:37,170 INFO L87 Difference]: Start difference. First operand 47118 states and 97470 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2022-11-23 14:47:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:41,106 INFO L93 Difference]: Finished difference Result 47122 states and 97478 transitions. [2022-11-23 14:47:41,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:47:41,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 [2022-11-23 14:47:41,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:41,189 INFO L225 Difference]: With dead ends: 47122 [2022-11-23 14:47:41,190 INFO L226 Difference]: Without dead ends: 47122 [2022-11-23 14:47:41,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:47:41,190 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 1350 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:41,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 841 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-23 14:47:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47122 states. [2022-11-23 14:47:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47122 to 47102. [2022-11-23 14:47:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47102 states, 45739 states have (on average 2.1303045541004395) internal successors, (97438), 47101 states have internal predecessors, (97438), 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) [2022-11-23 14:47:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47102 states to 47102 states and 97438 transitions. [2022-11-23 14:47:42,122 INFO L78 Accepts]: Start accepts. Automaton has 47102 states and 97438 transitions. Word has length 18 [2022-11-23 14:47:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:42,122 INFO L495 AbstractCegarLoop]: Abstraction has 47102 states and 97438 transitions. [2022-11-23 14:47:42,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2022-11-23 14:47:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 47102 states and 97438 transitions. [2022-11-23 14:47:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:47:42,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:42,124 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:42,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:47:42,124 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting worker_fnErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:42,124 INFO L85 PathProgramCache]: Analyzing trace with hash -612514888, now seen corresponding path program 1 times [2022-11-23 14:47:42,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:42,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387946548] [2022-11-23 14:47:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:42,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:42,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:42,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387946548] [2022-11-23 14:47:42,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387946548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:42,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:42,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:47:42,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245152414] [2022-11-23 14:47:42,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:42,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:42,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:42,261 INFO L87 Difference]: Start difference. First operand 47102 states and 97438 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) [2022-11-23 14:47:44,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:44,846 INFO L93 Difference]: Finished difference Result 48137 states and 99548 transitions. [2022-11-23 14:47:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:44,846 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 [2022-11-23 14:47:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:44,931 INFO L225 Difference]: With dead ends: 48137 [2022-11-23 14:47:44,931 INFO L226 Difference]: Without dead ends: 48137 [2022-11-23 14:47:44,931 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 [2022-11-23 14:47:44,932 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 135 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:44,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 323 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-23 14:47:45,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48137 states. [2022-11-23 14:47:45,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48137 to 47295. [2022-11-23 14:47:45,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47295 states, 45934 states have (on average 2.1298384638829626) internal successors, (97832), 47294 states have internal predecessors, (97832), 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) [2022-11-23 14:47:45,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47295 states to 47295 states and 97832 transitions. [2022-11-23 14:47:45,998 INFO L78 Accepts]: Start accepts. Automaton has 47295 states and 97832 transitions. Word has length 18 [2022-11-23 14:47:45,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:45,998 INFO L495 AbstractCegarLoop]: Abstraction has 47295 states and 97832 transitions. [2022-11-23 14:47:45,998 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) [2022-11-23 14:47:45,998 INFO L276 IsEmpty]: Start isEmpty. Operand 47295 states and 97832 transitions. [2022-11-23 14:47:45,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:47:45,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:45,999 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:45,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:47:45,999 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:46,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:46,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1685438716, now seen corresponding path program 1 times [2022-11-23 14:47:46,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:46,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740605633] [2022-11-23 14:47:46,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:46,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:46,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:46,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740605633] [2022-11-23 14:47:46,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740605633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:47:46,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038372788] [2022-11-23 14:47:46,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:46,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:46,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:47:46,667 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:47:46,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:47:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:46,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-23 14:47:46,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:47,009 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-23 14:47:47,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2022-11-23 14:47:47,119 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:47:47,145 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:47:47,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:47,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:47:47,177 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1867 (Array Int Int))) (= (select (select (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| v_ArrVal_1867) |c_~#pre~0.base|) (+ |c_~#pre~0.offset| |c_ULTIMATE.start_worker_fn_~tid~0#1|)) |c_ULTIMATE.start_worker_fn_#t~nondet18#1|)) is different from false [2022-11-23 14:47:47,187 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:47,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-11-23 14:47:47,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-11-23 14:47:47,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:47:47,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038372788] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:47:47,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2020648062] [2022-11-23 14:47:47,220 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$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) [2022-11-23 14:47:47,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:47:47,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-23 14:47:47,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247778684] [2022-11-23 14:47:47,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:47:47,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:47:47,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:47,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:47:47,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=121, Unknown=1, NotChecked=22, Total=182 [2022-11-23 14:47:47,223 INFO L87 Difference]: Start difference. First operand 47295 states and 97832 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 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) [2022-11-23 14:47:52,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:52,977 INFO L93 Difference]: Finished difference Result 47299 states and 97840 transitions. [2022-11-23 14:47:52,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:47:52,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 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 [2022-11-23 14:47:52,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:53,123 INFO L225 Difference]: With dead ends: 47299 [2022-11-23 14:47:53,123 INFO L226 Difference]: Without dead ends: 47299 [2022-11-23 14:47:53,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=220, Unknown=1, NotChecked=32, Total=342 [2022-11-23 14:47:53,124 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 3407 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1091 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:53,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3407 Valid, 974 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2051 Invalid, 0 Unknown, 1091 Unchecked, 5.0s Time] [2022-11-23 14:47:53,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47299 states. [2022-11-23 14:47:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47299 to 47279. [2022-11-23 14:47:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47279 states, 45919 states have (on average 2.129837322241338) internal successors, (97800), 47278 states have internal predecessors, (97800), 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) [2022-11-23 14:47:54,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47279 states to 47279 states and 97800 transitions. [2022-11-23 14:47:54,313 INFO L78 Accepts]: Start accepts. Automaton has 47279 states and 97800 transitions. Word has length 18 [2022-11-23 14:47:54,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:54,314 INFO L495 AbstractCegarLoop]: Abstraction has 47279 states and 97800 transitions. [2022-11-23 14:47:54,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 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) [2022-11-23 14:47:54,314 INFO L276 IsEmpty]: Start isEmpty. Operand 47279 states and 97800 transitions. [2022-11-23 14:47:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 14:47:54,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:54,314 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:54,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:47:54,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:54,515 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:54,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1560978779, now seen corresponding path program 1 times [2022-11-23 14:47:54,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:54,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349108987] [2022-11-23 14:47:54,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:54,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:47:54,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:54,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349108987] [2022-11-23 14:47:54,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349108987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:54,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:54,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:47:54,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963557787] [2022-11-23 14:47:54,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:54,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:47:54,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:54,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:47:54,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:47:54,656 INFO L87 Difference]: Start difference. First operand 47279 states and 97800 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) [2022-11-23 14:47:57,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:57,111 INFO L93 Difference]: Finished difference Result 48228 states and 99733 transitions. [2022-11-23 14:47:57,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:47:57,112 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 [2022-11-23 14:47:57,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:57,202 INFO L225 Difference]: With dead ends: 48228 [2022-11-23 14:47:57,202 INFO L226 Difference]: Without dead ends: 48228 [2022-11-23 14:47:57,202 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 [2022-11-23 14:47:57,203 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 123 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:57,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 320 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 14:47:57,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48228 states. [2022-11-23 14:47:58,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48228 to 47454. [2022-11-23 14:47:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47454 states, 46097 states have (on average 2.1293576588498166) internal successors, (98157), 47453 states have internal predecessors, (98157), 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) [2022-11-23 14:47:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47454 states to 47454 states and 98157 transitions. [2022-11-23 14:47:58,309 INFO L78 Accepts]: Start accepts. Automaton has 47454 states and 98157 transitions. Word has length 19 [2022-11-23 14:47:58,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:58,309 INFO L495 AbstractCegarLoop]: Abstraction has 47454 states and 98157 transitions. [2022-11-23 14:47:58,309 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) [2022-11-23 14:47:58,309 INFO L276 IsEmpty]: Start isEmpty. Operand 47454 states and 98157 transitions. [2022-11-23 14:47:58,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:47:58,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:58,310 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] [2022-11-23 14:47:58,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 14:47:58,311 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:47:58,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:58,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1158500770, now seen corresponding path program 1 times [2022-11-23 14:47:58,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:58,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169980122] [2022-11-23 14:47:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:58,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:48:00,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:48:00,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169980122] [2022-11-23 14:48:00,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169980122] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:48:00,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640314386] [2022-11-23 14:48:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:48:00,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:48:00,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:48:00,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:48:00,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:48:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:00,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-23 14:48:00,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:00,662 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-11-23 14:48:00,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 47 [2022-11-23 14:48:00,936 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:48:00,998 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-23 14:48:01,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:01,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:01,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-23 14:48:01,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-23 14:48:01,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:48:01,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:01,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:01,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:01,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:01,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-23 14:48:07,544 INFO L350 Elim1Store]: Elim1 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 61 treesize of output 53 [2022-11-23 14:48:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:48:13,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:48:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:48:15,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640314386] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 14:48:15,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:48:15,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 12] total 32 [2022-11-23 14:48:15,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817240618] [2022-11-23 14:48:15,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:15,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:48:15,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:48:15,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:48:15,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=918, Unknown=4, NotChecked=0, Total=1122 [2022-11-23 14:48:15,281 INFO L87 Difference]: Start difference. First operand 47454 states and 98157 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 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) [2022-11-23 14:48:18,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:48:21,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:49:13,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:13,197 INFO L93 Difference]: Finished difference Result 54597 states and 112873 transitions. [2022-11-23 14:49:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:49:13,197 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 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 [2022-11-23 14:49:13,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:13,296 INFO L225 Difference]: With dead ends: 54597 [2022-11-23 14:49:13,296 INFO L226 Difference]: Without dead ends: 54597 [2022-11-23 14:49:13,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=276, Invalid=1360, Unknown=4, NotChecked=0, Total=1640 [2022-11-23 14:49:13,297 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 2305 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 6786 mSolverCounterSat, 704 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 7493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 6786 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:13,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 946 Invalid, 7493 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [704 Valid, 6786 Invalid, 3 Unknown, 0 Unchecked, 55.7s Time] [2022-11-23 14:49:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54597 states. [2022-11-23 14:49:13,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54597 to 47470. [2022-11-23 14:49:14,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47470 states, 46113 states have (on average 2.1293127751393315) internal successors, (98189), 47469 states have internal predecessors, (98189), 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) [2022-11-23 14:49:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47470 states to 47470 states and 98189 transitions. [2022-11-23 14:49:14,088 INFO L78 Accepts]: Start accepts. Automaton has 47470 states and 98189 transitions. Word has length 21 [2022-11-23 14:49:14,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:14,088 INFO L495 AbstractCegarLoop]: Abstraction has 47470 states and 98189 transitions. [2022-11-23 14:49:14,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 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) [2022-11-23 14:49:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 47470 states and 98189 transitions. [2022-11-23 14:49:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:49:14,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:14,090 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] [2022-11-23 14:49:14,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:14,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 14:49:14,290 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:49:14,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:14,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1161909132, now seen corresponding path program 1 times [2022-11-23 14:49:14,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:49:14,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055826625] [2022-11-23 14:49:14,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:49:14,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:49:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:49:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:49:16,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:49:16,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055826625] [2022-11-23 14:49:16,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055826625] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:49:16,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017140875] [2022-11-23 14:49:16,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:49:16,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:49:16,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:49:16,354 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:49:16,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:49:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:49:16,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-23 14:49:16,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:16,770 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-11-23 14:49:16,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 59 [2022-11-23 14:49:17,016 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:49:17,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-23 14:49:17,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-23 14:49:17,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-23 14:49:17,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-23 14:49:17,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:49:17,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:17,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:49:17,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:49:17,607 INFO L350 Elim1Store]: Elim1 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 57 treesize of output 49 [2022-11-23 14:49:17,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:49:17,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:49:27,825 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse15 (+ 9 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|))) (let ((.cse10 (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse15 0)))) (let ((.cse5 (+ 11 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) (.cse1 (+ 22 |c_ULTIMATE.start_main_~#a~1#1.offset|)) (.cse7 (+ 23 |c_ULTIMATE.start_main_~#a~1#1.offset|)) (.cse9 (+ 10 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) (.cse11 (select .cse10 |c_ULTIMATE.start_main_~#a~1#1.base|)) (.cse2 (+ 20 |c_ULTIMATE.start_main_~#a~1#1.offset|)) (.cse12 (+ 21 |c_ULTIMATE.start_main_~#a~1#1.offset|))) (and (forall ((v_ArrVal_2651 Int) (v_ArrVal_2654 Int) (v_ArrVal_2656 Int) (v_ArrVal_2649 Int)) (let ((.cse3 (let ((.cse4 (let ((.cse6 (let ((.cse8 (store .cse10 |c_ULTIMATE.start_main_~#a~1#1.base| (store (store .cse11 .cse2 v_ArrVal_2649) .cse12 v_ArrVal_2651)))) (store .cse8 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse8 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse9 0))))) (store .cse6 |c_ULTIMATE.start_main_~#a~1#1.base| (store (store (select .cse6 |c_ULTIMATE.start_main_~#a~1#1.base|) .cse1 v_ArrVal_2654) .cse7 v_ArrVal_2656))))) (store .cse4 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse4 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_main_~#a~1#1.base|))) (or (not (= (select .cse0 .cse1) 0)) (not (= (select .cse0 .cse2) 0)) (forall ((v_ArrVal_2660 (Array Int Int))) (= 0 (select (select (store .cse3 |c_~#pre~0.base| v_ArrVal_2660) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 8 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)))))))) (forall ((v_ArrVal_2651 Int) (v_ArrVal_2654 Int) (v_ArrVal_2656 Int) (v_ArrVal_2649 Int)) (let ((.cse14 (let ((.cse16 (let ((.cse17 (let ((.cse18 (store .cse10 |c_ULTIMATE.start_main_~#a~1#1.base| (store (store .cse11 .cse2 v_ArrVal_2649) .cse12 v_ArrVal_2651)))) (store .cse18 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse18 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse9 0))))) (store .cse17 |c_ULTIMATE.start_main_~#a~1#1.base| (store (store (select .cse17 |c_ULTIMATE.start_main_~#a~1#1.base|) .cse1 v_ArrVal_2654) .cse7 v_ArrVal_2656))))) (store .cse16 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse16 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse13 (select .cse14 |c_ULTIMATE.start_main_~#a~1#1.base|))) (or (not (= (select .cse13 .cse1) 0)) (forall ((v_ArrVal_2660 (Array Int Int))) (= (select (select (store .cse14 |c_~#pre~0.base| v_ArrVal_2660) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse15) 0)) (not (= (select .cse13 .cse2) 0)))))))))) is different from false [2022-11-23 14:49:28,317 INFO L321 Elim1Store]: treesize reduction 524, result has 28.5 percent of original size [2022-11-23 14:49:28,317 INFO L350 Elim1Store]: Elim1 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 8 case distinctions, treesize of input 527 treesize of output 295 [2022-11-23 14:49:28,508 INFO L321 Elim1Store]: treesize reduction 96, result has 54.1 percent of original size [2022-11-23 14:49:28,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 234 treesize of output 292 [2022-11-23 14:49:28,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-11-23 14:49:28,901 INFO L321 Elim1Store]: treesize reduction 605, result has 17.5 percent of original size [2022-11-23 14:49:28,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 527 treesize of output 214 [2022-11-23 14:49:28,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:49:28,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:49:28,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:49:28,929 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:49:28,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:49:28,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:49:28,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:49:28,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:49:28,938 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:49:28,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 122 [2022-11-23 14:49:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 1 not checked. [2022-11-23 14:49:29,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017140875] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:49:29,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2119947511] [2022-11-23 14:49:29,438 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-23 14:49:29,439 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:49:29,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 15] total 38 [2022-11-23 14:49:29,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616151181] [2022-11-23 14:49:29,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:49:29,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-23 14:49:29,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:49:29,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-23 14:49:29,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1275, Unknown=36, NotChecked=74, Total=1560 [2022-11-23 14:49:29,441 INFO L87 Difference]: Start difference. First operand 47470 states and 98189 transitions. Second operand has 40 states, 39 states have (on average 1.5384615384615385) internal successors, (60), 39 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:39,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 14:49:45,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 14:49:47,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 14:49:49,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-23 14:51:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:51:52,475 INFO L93 Difference]: Finished difference Result 59183 states and 122273 transitions. [2022-11-23 14:51:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:51:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 1.5384615384615385) internal successors, (60), 39 states have internal predecessors, (60), 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 [2022-11-23 14:51:52,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:51:52,607 INFO L225 Difference]: With dead ends: 59183 [2022-11-23 14:51:52,607 INFO L226 Difference]: Without dead ends: 59183 [2022-11-23 14:51:52,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=488, Invalid=2447, Unknown=39, NotChecked=106, Total=3080 [2022-11-23 14:51:52,609 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 4360 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 19471 mSolverCounterSat, 814 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 21684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 814 IncrementalHoareTripleChecker+Valid, 19471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 1397 IncrementalHoareTripleChecker+Unchecked, 140.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:51:52,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4360 Valid, 3925 Invalid, 21684 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [814 Valid, 19471 Invalid, 2 Unknown, 1397 Unchecked, 140.6s Time] [2022-11-23 14:51:52,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59183 states. [2022-11-23 14:51:53,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59183 to 47502. [2022-11-23 14:51:53,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47502 states, 46145 states have (on average 2.1292231010943765) internal successors, (98253), 47501 states have internal predecessors, (98253), 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) [2022-11-23 14:51:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47502 states to 47502 states and 98253 transitions. [2022-11-23 14:51:53,481 INFO L78 Accepts]: Start accepts. Automaton has 47502 states and 98253 transitions. Word has length 21 [2022-11-23 14:51:53,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:51:53,481 INFO L495 AbstractCegarLoop]: Abstraction has 47502 states and 98253 transitions. [2022-11-23 14:51:53,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 1.5384615384615385) internal successors, (60), 39 states have internal predecessors, (60), 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) [2022-11-23 14:51:53,482 INFO L276 IsEmpty]: Start isEmpty. Operand 47502 states and 98253 transitions. [2022-11-23 14:51:53,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:51:53,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:51:53,483 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] [2022-11-23 14:51:53,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:51:53,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 14:51:53,684 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:51:53,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:51:53,684 INFO L85 PathProgramCache]: Analyzing trace with hash -603490918, now seen corresponding path program 2 times [2022-11-23 14:51:53,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:51:53,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560267125] [2022-11-23 14:51:53,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:53,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:51:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:51:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:51:55,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:51:55,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560267125] [2022-11-23 14:51:55,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560267125] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:51:55,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672087333] [2022-11-23 14:51:55,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:51:55,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:51:55,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:51:55,152 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:51:55,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 14:51:55,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:51:55,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:51:55,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-23 14:51:55,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:51:55,540 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-23 14:51:55,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 26 [2022-11-23 14:51:55,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-23 14:51:55,654 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-23 14:51:55,728 INFO L321 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-11-23 14:51:55,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2022-11-23 14:51:55,812 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:51:55,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 54 [2022-11-23 14:51:55,941 INFO L321 Elim1Store]: treesize reduction 90, result has 23.7 percent of original size [2022-11-23 14:51:55,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 66 [2022-11-23 14:51:56,121 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:51:56,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:51:56,198 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 39 [2022-11-23 14:51:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 14:51:56,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:51:56,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672087333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:51:56,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:51:56,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 22 [2022-11-23 14:51:56,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760469836] [2022-11-23 14:51:56,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:51:56,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:51:56,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:51:56,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:51:56,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2022-11-23 14:51:56,246 INFO L87 Difference]: Start difference. First operand 47502 states and 98253 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 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) [2022-11-23 14:52:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:04,967 INFO L93 Difference]: Finished difference Result 54116 states and 111892 transitions. [2022-11-23 14:52:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:52:04,968 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 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 [2022-11-23 14:52:04,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:05,069 INFO L225 Difference]: With dead ends: 54116 [2022-11-23 14:52:05,069 INFO L226 Difference]: Without dead ends: 54116 [2022-11-23 14:52:05,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=759, Unknown=0, NotChecked=0, Total=930 [2022-11-23 14:52:05,070 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 2032 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 5269 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2032 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 5895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 5269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:05,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2032 Valid, 880 Invalid, 5895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [626 Valid, 5269 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-23 14:52:05,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54116 states. [2022-11-23 14:52:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54116 to 47292. [2022-11-23 14:52:05,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47292 states, 45940 states have (on average 2.1294732259468874) internal successors, (97828), 47291 states have internal predecessors, (97828), 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) [2022-11-23 14:52:05,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47292 states to 47292 states and 97828 transitions. [2022-11-23 14:52:05,948 INFO L78 Accepts]: Start accepts. Automaton has 47292 states and 97828 transitions. Word has length 21 [2022-11-23 14:52:05,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:05,948 INFO L495 AbstractCegarLoop]: Abstraction has 47292 states and 97828 transitions. [2022-11-23 14:52:05,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 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) [2022-11-23 14:52:05,949 INFO L276 IsEmpty]: Start isEmpty. Operand 47292 states and 97828 transitions. [2022-11-23 14:52:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:52:05,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:05,950 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] [2022-11-23 14:52:05,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:52:06,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:52:06,157 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-23 14:52:06,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:06,157 INFO L85 PathProgramCache]: Analyzing trace with hash -754489168, now seen corresponding path program 2 times [2022-11-23 14:52:06,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:06,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724797951] [2022-11-23 14:52:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:06,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:52:08,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:08,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724797951] [2022-11-23 14:52:08,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724797951] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:52:08,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054822584] [2022-11-23 14:52:08,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:52:08,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:52:08,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:52:08,094 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:52:08,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4f6384e-fce6-4b67-8b50-46efe6f14fe7/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:52:09,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 14:52:09,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:52:09,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-23 14:52:09,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:52:09,301 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-23 14:52:09,302 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 19 [2022-11-23 14:52:09,452 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:52:09,521 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-23 14:52:09,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-23 14:52:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:52:09,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:52:09,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-23 14:52:09,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-23 14:52:09,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:09,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-11-23 14:52:14,127 INFO L350 Elim1Store]: Elim1 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 70 treesize of output 60 [2022-11-23 14:52:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:52:18,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:52:18,244 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 11 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)) (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 8 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)) (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 10 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)) (forall ((v_ArrVal_3309 (Array Int Int))) (= 0 (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 9 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|))))) is different from false [2022-11-23 14:52:18,838 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (+ 11 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) (.cse6 (select |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base|)) (.cse3 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 10)) (.cse2 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 11))) (and (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int)) (let ((.cse0 (let ((.cse4 (store |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store .cse6 .cse3 v_ArrVal_3304) .cse2 v_ArrVal_3306)))) (store .cse4 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse4 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store .cse0 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 9 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)) (not (= (select .cse1 .cse2) 0)) (not (= (select .cse1 .cse3) 0)))))) (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int)) (let ((.cse7 (let ((.cse9 (store |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store .cse6 .cse3 v_ArrVal_3304) .cse2 v_ArrVal_3306)))) (store .cse9 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse9 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse8 (select .cse7 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store .cse7 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 10 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)) (not (= (select .cse8 .cse2) 0)) (not (= (select .cse8 .cse3) 0)))))) (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int)) (let ((.cse11 (let ((.cse12 (store |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store .cse6 .cse3 v_ArrVal_3304) .cse2 v_ArrVal_3306)))) (store .cse12 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse12 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse10 (select .cse11 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (not (= (select .cse10 .cse2) 0)) (not (= (select .cse10 .cse3) 0)) (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store .cse11 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 8 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)))))))) is different from false [2022-11-23 14:52:18,943 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse12 (+ 10 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|))) (let ((.cse6 (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse12 0)))) (let ((.cse5 (+ 11 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) (.cse7 (select .cse6 |c_ULTIMATE.start_worker_fn_~a~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 10)) (.cse1 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 11))) (and (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int)) (let ((.cse3 (let ((.cse4 (store .cse6 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store .cse7 .cse2 v_ArrVal_3304) .cse1 v_ArrVal_3306)))) (store .cse4 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse4 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (not (= (select .cse0 .cse1) 0)) (not (= (select .cse0 .cse2) 0)) (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store .cse3 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 9 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)))))) (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int)) (let ((.cse9 (let ((.cse10 (store .cse6 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store .cse7 .cse2 v_ArrVal_3304) .cse1 v_ArrVal_3306)))) (store .cse10 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse10 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse8 (select .cse9 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (not (= (select .cse8 .cse1) 0)) (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store .cse9 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 8 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)) (not (= (select .cse8 .cse2) 0)))))) (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int)) (let ((.cse11 (let ((.cse14 (store .cse6 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store .cse7 .cse2 v_ArrVal_3304) .cse1 v_ArrVal_3306)))) (store .cse14 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse14 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse13 (select .cse11 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store .cse11 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse12) 0)) (not (= (select .cse13 .cse1) 0)) (not (= (select .cse13 .cse2) 0)))))))))) is different from false [2022-11-23 14:52:19,138 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (+ 11 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 10)) (.cse2 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 11)) (.cse8 (+ 10 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) (.cse9 (select |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base|)) (.cse10 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 9))) (and (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int) (v_ArrVal_3300 Int)) (let ((.cse0 (let ((.cse4 (let ((.cse6 (let ((.cse7 (store |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store .cse9 .cse10 v_ArrVal_3300)))) (store .cse7 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse7 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse8 0))))) (store .cse6 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store (select .cse6 |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse3 v_ArrVal_3304) .cse2 v_ArrVal_3306))))) (store .cse4 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse4 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (forall ((v_ArrVal_3309 (Array Int Int))) (= 0 (select (select (store .cse0 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 9 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)))) (not (= (select .cse1 .cse2) 0)) (not (= (select .cse1 .cse3) 0)))))) (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int) (v_ArrVal_3300 Int)) (let ((.cse12 (let ((.cse13 (let ((.cse14 (let ((.cse15 (store |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store .cse9 .cse10 v_ArrVal_3300)))) (store .cse15 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse15 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse8 0))))) (store .cse14 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store (select .cse14 |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse3 v_ArrVal_3304) .cse2 v_ArrVal_3306))))) (store .cse13 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse13 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse11 (select .cse12 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (not (= (select .cse11 .cse2) 0)) (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store .cse12 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) (+ 8 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) 0)) (not (= (select .cse11 .cse3) 0)))))) (forall ((v_ArrVal_3306 Int) (v_ArrVal_3304 Int) (v_ArrVal_3300 Int)) (let ((.cse17 (let ((.cse18 (let ((.cse19 (let ((.cse20 (store |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store .cse9 .cse10 v_ArrVal_3300)))) (store .cse20 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse20 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse8 0))))) (store .cse19 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store (select .cse19 |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse3 v_ArrVal_3304) .cse2 v_ArrVal_3306))))) (store .cse18 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store (select .cse18 |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse5 0))))) (let ((.cse16 (select .cse17 |c_ULTIMATE.start_worker_fn_~a~0#1.base|))) (or (not (= (select .cse16 .cse2) 0)) (forall ((v_ArrVal_3309 (Array Int Int))) (= (select (select (store .cse17 |c_~#pre~0.base| v_ArrVal_3309) |c_worker_fnThread1of1ForFork0_~a~0#1.base|) .cse8) 0)) (not (= (select .cse16 .cse3) 0)))))))) is different from false