./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/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_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 22:25:30,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:25:30,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:25:30,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:25:30,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:25:30,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:25:30,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:25:30,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:25:30,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:25:30,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:25:30,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:25:30,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:25:30,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:25:30,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:25:30,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:25:30,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:25:30,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:25:30,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:25:30,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:25:30,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:25:30,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:25:30,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:25:30,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:25:30,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:25:30,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:25:30,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:25:30,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:25:30,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:25:30,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:25:30,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:25:30,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:25:30,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:25:30,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:25:30,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:25:30,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:25:30,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:25:30,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:25:30,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:25:30,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:25:30,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:25:30,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:25:30,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 22:25:30,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:25:30,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:25:30,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:25:30,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:25:30,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:25:30,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:25:30,229 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:25:30,229 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:25:30,229 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:25:30,230 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:25:30,230 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:25:30,230 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:25:30,230 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:25:30,230 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:25:30,230 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:25:30,231 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:25:30,231 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:25:30,231 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:25:30,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:25:30,232 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:25:30,232 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:25:30,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:25:30,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:25:30,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:25:30,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:25:30,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:25:30,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:25:30,234 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 22:25:30,234 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:25:30,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:25:30,234 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:25:30,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:25:30,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:25:30,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:25:30,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:30,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:25:30,236 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:25:30,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:25:30,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:25:30,236 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:25:30,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:25:30,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:25:30,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:25:30,237 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_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2022-11-25 22:25:30,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:25:30,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:25:30,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:25:30,554 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:25:30,555 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:25:30,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2022-11-25 22:25:33,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:25:34,040 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:25:34,041 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2022-11-25 22:25:34,055 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/data/93d9b9f4f/7b725afa3813480cbff600a0a6cdc416/FLAG7f917dab7 [2022-11-25 22:25:34,075 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/data/93d9b9f4f/7b725afa3813480cbff600a0a6cdc416 [2022-11-25 22:25:34,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:25:34,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:25:34,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:25:34,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:25:34,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:25:34,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:34,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b91b4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34, skipping insertion in model container [2022-11-25 22:25:34,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:34,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:25:34,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:25:34,406 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:25:34,708 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30448,30461] [2022-11-25 22:25:34,738 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30811,30824] [2022-11-25 22:25:34,773 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31483,31496] [2022-11-25 22:25:34,774 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31534,31547] [2022-11-25 22:25:34,780 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31683,31696] [2022-11-25 22:25:34,782 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31760,31773] [2022-11-25 22:25:34,783 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31807,31820] [2022-11-25 22:25:34,785 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31916,31929] [2022-11-25 22:25:34,789 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32035,32048] [2022-11-25 22:25:34,791 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32083,32096] [2022-11-25 22:25:34,792 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32160,32173] [2022-11-25 22:25:34,794 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32286,32299] [2022-11-25 22:25:34,804 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32897,32910] [2022-11-25 22:25:34,806 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32974,32987] [2022-11-25 22:25:34,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:25:34,820 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:25:34,841 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:25:34,874 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30448,30461] [2022-11-25 22:25:34,878 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30811,30824] [2022-11-25 22:25:34,887 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31483,31496] [2022-11-25 22:25:34,888 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31534,31547] [2022-11-25 22:25:34,890 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31683,31696] [2022-11-25 22:25:34,892 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31760,31773] [2022-11-25 22:25:34,892 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31807,31820] [2022-11-25 22:25:34,895 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31916,31929] [2022-11-25 22:25:34,897 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32035,32048] [2022-11-25 22:25:34,898 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32083,32096] [2022-11-25 22:25:34,899 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32160,32173] [2022-11-25 22:25:34,901 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32286,32299] [2022-11-25 22:25:34,909 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32897,32910] [2022-11-25 22:25:34,911 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_fdf28820-11db-4f8d-8091-2bc41153871f/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32974,32987] [2022-11-25 22:25:34,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:25:34,949 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:25:34,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34 WrapperNode [2022-11-25 22:25:34,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:25:34,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:25:34,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:25:34,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:25:34,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:34,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,109 INFO L138 Inliner]: procedures = 174, calls = 73, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 805 [2022-11-25 22:25:35,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:25:35,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:25:35,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:25:35,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:25:35,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,297 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:25:35,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:25:35,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:25:35,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:25:35,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (1/1) ... [2022-11-25 22:25:35,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:35,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:35,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:25:35,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:25:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:25:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:25:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 22:25:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-25 22:25:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-25 22:25:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:25:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:25:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:25:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:25:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:25:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:25:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:25:35,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:25:35,438 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:25:35,639 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:25:35,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:25:37,129 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:25:37,151 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:25:37,153 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-25 22:25:37,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:25:37 BoogieIcfgContainer [2022-11-25 22:25:37,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:25:37,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:25:37,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:25:37,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:25:37,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:25:34" (1/3) ... [2022-11-25 22:25:37,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742c463a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:25:37, skipping insertion in model container [2022-11-25 22:25:37,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:34" (2/3) ... [2022-11-25 22:25:37,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742c463a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:25:37, skipping insertion in model container [2022-11-25 22:25:37,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:25:37" (3/3) ... [2022-11-25 22:25:37,174 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2022-11-25 22:25:37,184 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:25:37,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:25:37,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-25 22:25:37,197 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:25:37,482 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 22:25:37,548 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:25:37,579 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 868 places, 928 transitions, 1864 flow [2022-11-25 22:25:37,586 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 868 places, 928 transitions, 1864 flow [2022-11-25 22:25:37,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 868 places, 928 transitions, 1864 flow [2022-11-25 22:25:38,468 INFO L130 PetriNetUnfolder]: 95/1352 cut-off events. [2022-11-25 22:25:38,468 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 22:25:38,507 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. [2022-11-25 22:25:38,613 INFO L119 LiptonReduction]: Number of co-enabled transitions 313900 [2022-11-25 22:26:33,276 WARN L233 SmtUtils]: Spent 7.02s 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) [2022-11-25 22:26:42,402 WARN L233 SmtUtils]: Spent 7.51s 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) [2022-11-25 22:27:37,157 WARN L233 SmtUtils]: Spent 42.11s 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) [2022-11-25 22:27:54,380 WARN L233 SmtUtils]: Spent 17.22s 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) [2022-11-25 22:28:32,803 WARN L233 SmtUtils]: Spent 38.42s 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) [2022-11-25 22:28:47,355 WARN L233 SmtUtils]: Spent 14.55s 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) [2022-11-25 22:30:22,204 WARN L233 SmtUtils]: Spent 1.57m 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) [2022-11-25 22:30:51,674 WARN L233 SmtUtils]: Spent 29.47s 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) [2022-11-25 22:32:47,513 WARN L233 SmtUtils]: Spent 1.93m 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) [2022-11-25 22:33:18,716 WARN L233 SmtUtils]: Spent 31.20s 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) [2022-11-25 22:33:44,390 WARN L233 SmtUtils]: Spent 25.30s 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) [2022-11-25 22:34:11,273 WARN L233 SmtUtils]: Spent 26.88s 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) [2022-11-25 22:34:44,370 WARN L233 SmtUtils]: Spent 33.09s 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) [2022-11-25 22:35:21,374 WARN L233 SmtUtils]: Spent 37.00s 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) [2022-11-25 22:35:27,270 INFO L134 LiptonReduction]: Checked pairs total: 5629627 [2022-11-25 22:35:27,270 INFO L136 LiptonReduction]: Total number of compositions: 705 [2022-11-25 22:35:27,280 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 439 places, 475 transitions, 958 flow [2022-11-25 22:35:28,477 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) [2022-11-25 22:35:28,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:35:28,510 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;@12d9e190, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:35:28,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2022-11-25 22:35:28,603 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) [2022-11-25 22:35:28,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-25 22:35:28,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:28,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-25 22:35:28,610 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)] === [2022-11-25 22:35:28,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:28,621 INFO L85 PathProgramCache]: Analyzing trace with hash 100943, now seen corresponding path program 1 times [2022-11-25 22:35:28,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:28,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143291924] [2022-11-25 22:35:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:35:28,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:28,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143291924] [2022-11-25 22:35:28,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143291924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:28,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:28,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:35:28,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644254369] [2022-11-25 22:35:28,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:28,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:35:28,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:28,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:35:28,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:35:28,988 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) [2022-11-25 22:35:30,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:30,803 INFO L93 Difference]: Finished difference Result 45715 states and 94411 transitions. [2022-11-25 22:35:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:35:30,807 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 [2022-11-25 22:35:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:31,290 INFO L225 Difference]: With dead ends: 45715 [2022-11-25 22:35:31,291 INFO L226 Difference]: Without dead ends: 45713 [2022-11-25 22:35:31,292 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 [2022-11-25 22:35:31,295 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:31,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 293 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 22:35:31,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45713 states. [2022-11-25 22:35:32,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45713 to 45713. [2022-11-25 22:35:33,062 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) [2022-11-25 22:35:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45713 states to 45713 states and 94408 transitions. [2022-11-25 22:35:33,532 INFO L78 Accepts]: Start accepts. Automaton has 45713 states and 94408 transitions. Word has length 2 [2022-11-25 22:35:33,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:33,533 INFO L495 AbstractCegarLoop]: Abstraction has 45713 states and 94408 transitions. [2022-11-25 22:35:33,533 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) [2022-11-25 22:35:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 45713 states and 94408 transitions. [2022-11-25 22:35:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:35:33,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:33,536 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-25 22:35:33,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:35:33,537 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)] === [2022-11-25 22:35:33,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1856443043, now seen corresponding path program 1 times [2022-11-25 22:35:33,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:33,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592483445] [2022-11-25 22:35:33,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:33,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:35:33,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:33,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592483445] [2022-11-25 22:35:33,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592483445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:33,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:33,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:35:33,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042346532] [2022-11-25 22:35:33,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:33,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:35:33,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:33,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:35:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:35:33,894 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) [2022-11-25 22:35:35,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:35,773 INFO L93 Difference]: Finished difference Result 45714 states and 94409 transitions. [2022-11-25 22:35:35,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:35:35,774 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 [2022-11-25 22:35:35,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:35,927 INFO L225 Difference]: With dead ends: 45714 [2022-11-25 22:35:35,927 INFO L226 Difference]: Without dead ends: 45714 [2022-11-25 22:35:35,927 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 [2022-11-25 22:35:35,928 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:35,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 586 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 22:35:36,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45714 states. [2022-11-25 22:35:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45714 to 45714. [2022-11-25 22:35:37,410 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) [2022-11-25 22:35:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45714 states to 45714 states and 94409 transitions. [2022-11-25 22:35:37,605 INFO L78 Accepts]: Start accepts. Automaton has 45714 states and 94409 transitions. Word has length 7 [2022-11-25 22:35:37,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:37,605 INFO L495 AbstractCegarLoop]: Abstraction has 45714 states and 94409 transitions. [2022-11-25 22:35:37,605 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) [2022-11-25 22:35:37,608 INFO L276 IsEmpty]: Start isEmpty. Operand 45714 states and 94409 transitions. [2022-11-25 22:35:37,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:35:37,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:37,609 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:37,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:35:37,611 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)] === [2022-11-25 22:35:37,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1846733072, now seen corresponding path program 1 times [2022-11-25 22:35:37,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:37,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102989830] [2022-11-25 22:35:37,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:35:37,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:37,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102989830] [2022-11-25 22:35:37,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102989830] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:35:37,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146475409] [2022-11-25 22:35:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:37,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:37,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:37,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:35:37,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:35:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:38,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:35:38,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:35:38,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:35:38,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:35:38,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146475409] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:35:38,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [664791788] [2022-11-25 22:35:38,161 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:337) 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) [2022-11-25 22:35:38,165 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:35:38,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2022-11-25 22:35:38,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729485401] [2022-11-25 22:35:38,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:35:38,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:35:38,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:38,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:35:38,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:35:38,168 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) [2022-11-25 22:35:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:40,358 INFO L93 Difference]: Finished difference Result 45715 states and 94410 transitions. [2022-11-25 22:35:40,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:35:40,358 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 [2022-11-25 22:35:40,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:40,719 INFO L225 Difference]: With dead ends: 45715 [2022-11-25 22:35:40,719 INFO L226 Difference]: Without dead ends: 45715 [2022-11-25 22:35:40,719 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 [2022-11-25 22:35:40,724 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:40,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 586 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 22:35:40,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45715 states. [2022-11-25 22:35:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45715 to 45715. [2022-11-25 22:35:42,027 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) [2022-11-25 22:35:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45715 states to 45715 states and 94410 transitions. [2022-11-25 22:35:42,430 INFO L78 Accepts]: Start accepts. Automaton has 45715 states and 94410 transitions. Word has length 8 [2022-11-25 22:35:42,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:42,433 INFO L495 AbstractCegarLoop]: Abstraction has 45715 states and 94410 transitions. [2022-11-25 22:35:42,433 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) [2022-11-25 22:35:42,434 INFO L276 IsEmpty]: Start isEmpty. Operand 45715 states and 94410 transitions. [2022-11-25 22:35:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:35:42,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:42,435 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 22:35:42,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:35:42,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:42,642 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)] === [2022-11-25 22:35:42,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:42,643 INFO L85 PathProgramCache]: Analyzing trace with hash 681075645, now seen corresponding path program 2 times [2022-11-25 22:35:42,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:42,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257430353] [2022-11-25 22:35:42,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:42,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:35:42,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257430353] [2022-11-25 22:35:42,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257430353] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:35:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021976201] [2022-11-25 22:35:42,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:35:42,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:42,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:42,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:35:42,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:35:43,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 22:35:43,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:35:43,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:35:43,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:35:43,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:35:43,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021976201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:43,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:35:43,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-25 22:35:43,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224551625] [2022-11-25 22:35:43,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:43,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:35:43,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:43,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:35:43,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:35:43,700 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) [2022-11-25 22:35:45,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:45,648 INFO L93 Difference]: Finished difference Result 45307 states and 93580 transitions. [2022-11-25 22:35:45,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:35:45,648 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 [2022-11-25 22:35:45,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:45,785 INFO L225 Difference]: With dead ends: 45307 [2022-11-25 22:35:45,785 INFO L226 Difference]: Without dead ends: 45307 [2022-11-25 22:35:45,786 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 [2022-11-25 22:35:45,790 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 651 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:45,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 572 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 22:35:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45307 states. [2022-11-25 22:35:47,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45307 to 45307. [2022-11-25 22:35:47,100 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) [2022-11-25 22:35:47,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45307 states to 45307 states and 93580 transitions. [2022-11-25 22:35:47,197 INFO L78 Accepts]: Start accepts. Automaton has 45307 states and 93580 transitions. Word has length 9 [2022-11-25 22:35:47,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:47,197 INFO L495 AbstractCegarLoop]: Abstraction has 45307 states and 93580 transitions. [2022-11-25 22:35:47,197 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) [2022-11-25 22:35:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 45307 states and 93580 transitions. [2022-11-25 22:35:47,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 22:35:47,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:47,198 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:47,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 22:35:47,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:47,398 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)] === [2022-11-25 22:35:47,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:47,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1513537412, now seen corresponding path program 1 times [2022-11-25 22:35:47,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:47,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194090481] [2022-11-25 22:35:47,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:47,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:47,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:35:47,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:47,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194090481] [2022-11-25 22:35:47,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194090481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:47,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:47,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:35:47,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051707005] [2022-11-25 22:35:47,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:47,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:35:47,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:47,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:35:47,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:35:47,513 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) [2022-11-25 22:35:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:48,833 INFO L93 Difference]: Finished difference Result 45105 states and 93369 transitions. [2022-11-25 22:35:48,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:35:48,833 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 [2022-11-25 22:35:48,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:48,980 INFO L225 Difference]: With dead ends: 45105 [2022-11-25 22:35:48,980 INFO L226 Difference]: Without dead ends: 45105 [2022-11-25 22:35:48,980 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 [2022-11-25 22:35:48,981 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 213 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:48,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 584 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 22:35:49,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45105 states. [2022-11-25 22:35:50,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45105 to 45105. [2022-11-25 22:35:50,289 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) [2022-11-25 22:35:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45105 states to 45105 states and 93369 transitions. [2022-11-25 22:35:50,728 INFO L78 Accepts]: Start accepts. Automaton has 45105 states and 93369 transitions. Word has length 10 [2022-11-25 22:35:50,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:50,728 INFO L495 AbstractCegarLoop]: Abstraction has 45105 states and 93369 transitions. [2022-11-25 22:35:50,728 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) [2022-11-25 22:35:50,728 INFO L276 IsEmpty]: Start isEmpty. Operand 45105 states and 93369 transitions. [2022-11-25 22:35:50,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 22:35:50,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:50,729 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:50,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:35:50,729 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)] === [2022-11-25 22:35:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:50,730 INFO L85 PathProgramCache]: Analyzing trace with hash 702481376, now seen corresponding path program 1 times [2022-11-25 22:35:50,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:50,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109668541] [2022-11-25 22:35:50,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:50,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:35:51,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:51,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109668541] [2022-11-25 22:35:51,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109668541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:51,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:51,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:35:51,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201223900] [2022-11-25 22:35:51,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:51,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:35:51,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:51,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:35:51,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:35:51,377 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) [2022-11-25 22:35:56,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:56,808 INFO L93 Difference]: Finished difference Result 46361 states and 95929 transitions. [2022-11-25 22:35:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:35:56,808 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 [2022-11-25 22:35:56,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:56,921 INFO L225 Difference]: With dead ends: 46361 [2022-11-25 22:35:56,921 INFO L226 Difference]: Without dead ends: 46361 [2022-11-25 22:35:56,921 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 [2022-11-25 22:35:56,922 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 532 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 3124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:56,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 438 Invalid, 3124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 22:35:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46361 states. [2022-11-25 22:35:57,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46361 to 45939. [2022-11-25 22:35:58,044 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) [2022-11-25 22:35:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45939 states to 45939 states and 95069 transitions. [2022-11-25 22:35:58,154 INFO L78 Accepts]: Start accepts. Automaton has 45939 states and 95069 transitions. Word has length 12 [2022-11-25 22:35:58,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:58,154 INFO L495 AbstractCegarLoop]: Abstraction has 45939 states and 95069 transitions. [2022-11-25 22:35:58,154 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) [2022-11-25 22:35:58,155 INFO L276 IsEmpty]: Start isEmpty. Operand 45939 states and 95069 transitions. [2022-11-25 22:35:58,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:35:58,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:58,156 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:35:58,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:35:58,156 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)] === [2022-11-25 22:35:58,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:58,156 INFO L85 PathProgramCache]: Analyzing trace with hash 259291769, now seen corresponding path program 1 times [2022-11-25 22:35:58,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:58,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652120693] [2022-11-25 22:35:58,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:58,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:35:58,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:58,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652120693] [2022-11-25 22:35:58,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652120693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:58,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:35:58,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:35:58,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279945231] [2022-11-25 22:35:58,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:58,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:35:58,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:35:58,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:35:58,729 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) [2022-11-25 22:36:04,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:04,200 INFO L93 Difference]: Finished difference Result 47101 states and 97435 transitions. [2022-11-25 22:36:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:04,201 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 [2022-11-25 22:36:04,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:04,324 INFO L225 Difference]: With dead ends: 47101 [2022-11-25 22:36:04,325 INFO L226 Difference]: Without dead ends: 47101 [2022-11-25 22:36:04,325 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 [2022-11-25 22:36:04,326 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 480 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 2660 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 2974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 2660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:04,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 413 Invalid, 2974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 22:36:04,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47101 states. [2022-11-25 22:36:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47101 to 46711. [2022-11-25 22:36:05,502 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) [2022-11-25 22:36:05,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46711 states to 46711 states and 96641 transitions. [2022-11-25 22:36:05,630 INFO L78 Accepts]: Start accepts. Automaton has 46711 states and 96641 transitions. Word has length 13 [2022-11-25 22:36:05,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:05,630 INFO L495 AbstractCegarLoop]: Abstraction has 46711 states and 96641 transitions. [2022-11-25 22:36:05,630 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) [2022-11-25 22:36:05,630 INFO L276 IsEmpty]: Start isEmpty. Operand 46711 states and 96641 transitions. [2022-11-25 22:36:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 22:36:05,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:05,632 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:05,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:36:05,632 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)] === [2022-11-25 22:36:05,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:05,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1730349245, now seen corresponding path program 1 times [2022-11-25 22:36:05,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:05,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333789772] [2022-11-25 22:36:05,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:05,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:05,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:05,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:05,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333789772] [2022-11-25 22:36:05,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333789772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:05,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:05,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:36:05,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531991397] [2022-11-25 22:36:05,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:05,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:05,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:05,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:05,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:05,785 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) [2022-11-25 22:36:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:08,293 INFO L93 Difference]: Finished difference Result 46924 states and 97075 transitions. [2022-11-25 22:36:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:08,294 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 [2022-11-25 22:36:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:08,401 INFO L225 Difference]: With dead ends: 46924 [2022-11-25 22:36:08,401 INFO L226 Difference]: Without dead ends: 46924 [2022-11-25 22:36:08,402 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 [2022-11-25 22:36:08,402 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 132 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:08,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 327 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 22:36:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46924 states. [2022-11-25 22:36:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46924 to 46924. [2022-11-25 22:36:09,521 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) [2022-11-25 22:36:09,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46924 states to 46924 states and 97075 transitions. [2022-11-25 22:36:09,624 INFO L78 Accepts]: Start accepts. Automaton has 46924 states and 97075 transitions. Word has length 15 [2022-11-25 22:36:09,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:09,625 INFO L495 AbstractCegarLoop]: Abstraction has 46924 states and 97075 transitions. [2022-11-25 22:36:09,625 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) [2022-11-25 22:36:09,625 INFO L276 IsEmpty]: Start isEmpty. Operand 46924 states and 97075 transitions. [2022-11-25 22:36:09,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 22:36:09,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:09,627 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:09,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:36:09,627 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)] === [2022-11-25 22:36:09,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:09,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2052168617, now seen corresponding path program 1 times [2022-11-25 22:36:09,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:09,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583379785] [2022-11-25 22:36:09,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:09,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:10,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:36:10,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:10,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583379785] [2022-11-25 22:36:10,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583379785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:10,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:10,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:36:10,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020970144] [2022-11-25 22:36:10,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:10,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:10,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:10,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:10,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:10,190 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) [2022-11-25 22:36:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:13,198 INFO L93 Difference]: Finished difference Result 47118 states and 97470 transitions. [2022-11-25 22:36:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:13,199 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 [2022-11-25 22:36:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:13,305 INFO L225 Difference]: With dead ends: 47118 [2022-11-25 22:36:13,305 INFO L226 Difference]: Without dead ends: 47118 [2022-11-25 22:36:13,305 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 [2022-11-25 22:36:13,306 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:13,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 323 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 22:36:13,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47118 states. [2022-11-25 22:36:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47118 to 47118. [2022-11-25 22:36:14,397 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) [2022-11-25 22:36:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47118 states to 47118 states and 97470 transitions. [2022-11-25 22:36:14,545 INFO L78 Accepts]: Start accepts. Automaton has 47118 states and 97470 transitions. Word has length 16 [2022-11-25 22:36:14,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:14,545 INFO L495 AbstractCegarLoop]: Abstraction has 47118 states and 97470 transitions. [2022-11-25 22:36:14,546 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) [2022-11-25 22:36:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 47118 states and 97470 transitions. [2022-11-25 22:36:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:36:14,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:14,547 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:14,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:36:14,548 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)] === [2022-11-25 22:36:14,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:14,549 INFO L85 PathProgramCache]: Analyzing trace with hash -422862537, now seen corresponding path program 1 times [2022-11-25 22:36:14,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:14,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272174048] [2022-11-25 22:36:14,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:14,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:15,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:36:15,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:15,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272174048] [2022-11-25 22:36:15,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272174048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:15,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:15,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:36:15,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322222858] [2022-11-25 22:36:15,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:15,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:36:15,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:15,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:36:15,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:36:15,394 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) [2022-11-25 22:36:20,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:20,395 INFO L93 Difference]: Finished difference Result 47122 states and 97478 transitions. [2022-11-25 22:36:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:36:20,395 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 [2022-11-25 22:36:20,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:20,493 INFO L225 Difference]: With dead ends: 47122 [2022-11-25 22:36:20,493 INFO L226 Difference]: Without dead ends: 47122 [2022-11-25 22:36:20,493 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 [2022-11-25 22:36:20,494 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 1347 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:20,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 841 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 22:36:20,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47122 states. [2022-11-25 22:36:21,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47122 to 47102. [2022-11-25 22:36:21,619 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) [2022-11-25 22:36:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47102 states to 47102 states and 97438 transitions. [2022-11-25 22:36:21,792 INFO L78 Accepts]: Start accepts. Automaton has 47102 states and 97438 transitions. Word has length 18 [2022-11-25 22:36:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:21,792 INFO L495 AbstractCegarLoop]: Abstraction has 47102 states and 97438 transitions. [2022-11-25 22:36:21,792 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) [2022-11-25 22:36:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 47102 states and 97438 transitions. [2022-11-25 22:36:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:36:21,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:21,794 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:21,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:36:21,794 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)] === [2022-11-25 22:36:21,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash -612514888, now seen corresponding path program 1 times [2022-11-25 22:36:21,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:21,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397182483] [2022-11-25 22:36:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:21,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:21,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:21,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397182483] [2022-11-25 22:36:21,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397182483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:21,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:21,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:36:21,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990014148] [2022-11-25 22:36:21,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:21,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:21,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:21,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:21,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:21,997 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) [2022-11-25 22:36:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:24,339 INFO L93 Difference]: Finished difference Result 48137 states and 99548 transitions. [2022-11-25 22:36:24,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:24,340 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 [2022-11-25 22:36:24,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:24,445 INFO L225 Difference]: With dead ends: 48137 [2022-11-25 22:36:24,445 INFO L226 Difference]: Without dead ends: 48137 [2022-11-25 22:36:24,445 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 [2022-11-25 22:36:24,446 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 135 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:24,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 323 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:36:24,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48137 states. [2022-11-25 22:36:25,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48137 to 47295. [2022-11-25 22:36:25,487 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) [2022-11-25 22:36:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47295 states to 47295 states and 97832 transitions. [2022-11-25 22:36:25,595 INFO L78 Accepts]: Start accepts. Automaton has 47295 states and 97832 transitions. Word has length 18 [2022-11-25 22:36:25,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:25,595 INFO L495 AbstractCegarLoop]: Abstraction has 47295 states and 97832 transitions. [2022-11-25 22:36:25,595 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) [2022-11-25 22:36:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 47295 states and 97832 transitions. [2022-11-25 22:36:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:36:25,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:25,596 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:25,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:36:25,597 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)] === [2022-11-25 22:36:25,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:25,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1685438716, now seen corresponding path program 1 times [2022-11-25 22:36:25,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:25,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467951237] [2022-11-25 22:36:25,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:25,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:26,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:26,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467951237] [2022-11-25 22:36:26,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467951237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:36:26,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155425429] [2022-11-25 22:36:26,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:26,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:36:26,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:26,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:36:26,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:36:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:26,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 22:36:26,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:36:26,631 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-25 22:36:26,632 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 [2022-11-25 22:36:26,754 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 [2022-11-25 22:36:26,784 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 [2022-11-25 22:36:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:26,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:36:27,196 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:36:27,196 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 [2022-11-25 22:36:27,201 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 [2022-11-25 22:36:27,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:27,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155425429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:36:27,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [852551427] [2022-11-25 22:36:27,240 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:337) 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) [2022-11-25 22:36:27,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:36:27,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-25 22:36:27,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718562448] [2022-11-25 22:36:27,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:36:27,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:36:27,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:27,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:36:27,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=138, Unknown=3, NotChecked=0, Total=182 [2022-11-25 22:36:27,246 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) [2022-11-25 22:36:33,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:33,530 INFO L93 Difference]: Finished difference Result 47299 states and 97840 transitions. [2022-11-25 22:36:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:36:33,531 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 [2022-11-25 22:36:33,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:33,630 INFO L225 Difference]: With dead ends: 47299 [2022-11-25 22:36:33,630 INFO L226 Difference]: Without dead ends: 47299 [2022-11-25 22:36:33,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=246, Unknown=3, NotChecked=0, Total=342 [2022-11-25 22:36:33,631 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 3521 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3521 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:33,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3521 Valid, 986 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 22:36:33,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47299 states. [2022-11-25 22:36:34,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47299 to 47279. [2022-11-25 22:36:34,680 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) [2022-11-25 22:36:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47279 states to 47279 states and 97800 transitions. [2022-11-25 22:36:34,818 INFO L78 Accepts]: Start accepts. Automaton has 47279 states and 97800 transitions. Word has length 18 [2022-11-25 22:36:34,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:34,819 INFO L495 AbstractCegarLoop]: Abstraction has 47279 states and 97800 transitions. [2022-11-25 22:36:34,819 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) [2022-11-25 22:36:34,819 INFO L276 IsEmpty]: Start isEmpty. Operand 47279 states and 97800 transitions. [2022-11-25 22:36:34,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 22:36:34,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:34,821 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:34,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:36:35,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 22:36:35,022 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)] === [2022-11-25 22:36:35,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:35,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1560978779, now seen corresponding path program 1 times [2022-11-25 22:36:35,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:35,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931234695] [2022-11-25 22:36:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:35,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:36:35,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:35,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931234695] [2022-11-25 22:36:35,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931234695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:35,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:35,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:36:35,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48638247] [2022-11-25 22:36:35,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:35,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:35,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:35,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:35,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:35,242 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) [2022-11-25 22:36:37,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:37,903 INFO L93 Difference]: Finished difference Result 48228 states and 99733 transitions. [2022-11-25 22:36:37,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:37,904 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 [2022-11-25 22:36:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:38,281 INFO L225 Difference]: With dead ends: 48228 [2022-11-25 22:36:38,291 INFO L226 Difference]: Without dead ends: 48228 [2022-11-25 22:36:38,291 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 [2022-11-25 22:36:38,292 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 123 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:38,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 320 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 22:36:38,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48228 states. [2022-11-25 22:36:39,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48228 to 47454. [2022-11-25 22:36:39,080 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) [2022-11-25 22:36:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47454 states to 47454 states and 98157 transitions. [2022-11-25 22:36:39,204 INFO L78 Accepts]: Start accepts. Automaton has 47454 states and 98157 transitions. Word has length 19 [2022-11-25 22:36:39,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:39,204 INFO L495 AbstractCegarLoop]: Abstraction has 47454 states and 98157 transitions. [2022-11-25 22:36:39,205 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) [2022-11-25 22:36:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 47454 states and 98157 transitions. [2022-11-25 22:36:39,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 22:36:39,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:39,206 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] [2022-11-25 22:36:39,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 22:36:39,206 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)] === [2022-11-25 22:36:39,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:39,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1158500770, now seen corresponding path program 1 times [2022-11-25 22:36:39,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:39,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730353671] [2022-11-25 22:36:39,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:39,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:41,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:41,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:41,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730353671] [2022-11-25 22:36:41,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730353671] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:36:41,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180936643] [2022-11-25 22:36:41,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:41,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:36:41,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:41,525 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:36:41,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdf28820-11db-4f8d-8091-2bc41153871f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:36:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:41,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-25 22:36:41,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:36:41,940 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-11-25 22:36:41,941 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 [2022-11-25 22:36:42,236 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 [2022-11-25 22:36:42,304 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 [2022-11-25 22:36:42,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:42,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:42,390 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 [2022-11-25 22:36:42,419 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 [2022-11-25 22:36:42,514 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 [2022-11-25 22:36:42,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:42,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:42,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:42,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:36:42,807 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 [2022-11-25 22:36:49,086 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 [2022-11-25 22:36:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:36:55,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:36:55,233 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2335 (Array Int Int))) (= 0 (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 10)))) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 9)) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 8)) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 11)) 0))) is different from false [2022-11-25 22:36:58,672 INFO L321 Elim1Store]: treesize reduction 249, result has 24.8 percent of original size [2022-11-25 22:36:58,672 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 6 case distinctions, treesize of input 257 treesize of output 138 [2022-11-25 22:36:58,726 INFO L321 Elim1Store]: treesize reduction 97, result has 4.0 percent of original size [2022-11-25 22:36:58,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 107 treesize of output 69 [2022-11-25 22:36:58,745 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 [2022-11-25 22:36:58,788 INFO L321 Elim1Store]: treesize reduction 330, result has 0.3 percent of original size [2022-11-25 22:36:58,789 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 1 new quantified variables, introduced 6 case distinctions, treesize of input 257 treesize of output 1 [2022-11-25 22:36:58,846 INFO L321 Elim1Store]: treesize reduction 330, result has 0.3 percent of original size [2022-11-25 22:36:58,846 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 1 new quantified variables, introduced 6 case distinctions, treesize of input 257 treesize of output 1 [2022-11-25 22:36:58,888 INFO L321 Elim1Store]: treesize reduction 330, result has 0.3 percent of original size [2022-11-25 22:36:58,889 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 1 new quantified variables, introduced 6 case distinctions, treesize of input 257 treesize of output 1 [2022-11-25 22:36:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:36:59,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180936643] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:36:59,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:36:59,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 12] total 33 [2022-11-25 22:36:59,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342094899] [2022-11-25 22:36:59,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:59,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:36:59,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:59,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:36:59,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=907, Unknown=18, NotChecked=64, Total=1190 [2022-11-25 22:36:59,177 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) [2022-11-25 22:37:02,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:37:04,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:37:28,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:37:29,763 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse10 (select |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base|)) (.cse8 (+ 10 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|))) (let ((.cse0 (not (= (select .cse10 .cse8) 0))) (.cse3 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 8)) (.cse7 (+ 11 |c_worker_fnThread1of1ForFork0_~a~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 9)) (.cse1 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 10)) (.cse4 (+ |c_ULTIMATE.start_worker_fn_~a~0#1.offset| 11))) (and (or .cse0 (and (forall ((v_ArrVal_2335 (Array Int Int))) (= 0 (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse1))) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse3) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store |c_#race| |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse4) 0)))) (forall ((v_ArrVal_2328 Int)) (let ((.cse5 (let ((.cse9 (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse10 .cse8 v_ArrVal_2328)))) (store .cse9 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store (select .cse9 |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse1 0) .cse4 0))))) (let ((.cse6 (select .cse5 |c_worker_fnThread1of1ForFork0_~a~0#1.base|))) (or (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store (store .cse5 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse6 .cse7 0)) |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse1) 0)) (not (= (select .cse6 .cse8) 0)))))) (let ((.cse12 (store |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse4 0)))) (let ((.cse13 (select .cse12 |c_worker_fnThread1of1ForFork0_~a~0#1.base|))) (or (let ((.cse11 (store .cse12 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse13 .cse7 0)))) (and (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store .cse11 |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse3) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store .cse11 |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store .cse11 |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse4) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store .cse11 |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse1) 0)))) (not (= (select .cse13 .cse8) 0))))) (forall ((v_ArrVal_2328 Int)) (let ((.cse14 (let ((.cse16 (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse10 .cse8 v_ArrVal_2328)))) (store .cse16 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store (select .cse16 |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse1 0) .cse4 0))))) (let ((.cse15 (select .cse14 |c_worker_fnThread1of1ForFork0_~a~0#1.base|))) (or (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store (store .cse14 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse15 .cse7 0)) |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse4) 0)) (not (= (select .cse15 .cse8) 0)))))) (not (= |c_ULTIMATE.start_main_~#a~1#1.base| |c_~#pre~0.base|)) (forall ((v_ArrVal_2328 Int)) (let ((.cse17 (let ((.cse19 (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse10 .cse8 v_ArrVal_2328)))) (store .cse19 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store (select .cse19 |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse1 0) .cse4 0))))) (let ((.cse18 (select .cse17 |c_worker_fnThread1of1ForFork0_~a~0#1.base|))) (or (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store (store .cse17 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse18 .cse7 0)) |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse3) 0)) (not (= (select .cse18 .cse8) 0)))))) (or .cse0 (let ((.cse20 (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse10 .cse7 0)))) (and (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store .cse20 |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse4) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store .cse20 |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store .cse20 |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse3) 0)) (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store .cse20 |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse2) 0))))) (forall ((v_ArrVal_2328 Int)) (let ((.cse21 (let ((.cse23 (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse10 .cse8 v_ArrVal_2328)))) (store .cse23 |c_ULTIMATE.start_worker_fn_~a~0#1.base| (store (store (select .cse23 |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse1 0) .cse4 0))))) (let ((.cse22 (select .cse21 |c_worker_fnThread1of1ForFork0_~a~0#1.base|))) (or (forall ((v_ArrVal_2335 (Array Int Int))) (= (select (select (store (store .cse21 |c_worker_fnThread1of1ForFork0_~a~0#1.base| (store .cse22 .cse7 0)) |c_~#pre~0.base| v_ArrVal_2335) |c_ULTIMATE.start_worker_fn_~a~0#1.base|) .cse2) 0)) (not (= (select .cse22 .cse8) 0))))))))) is different from false [2022-11-25 22:38:04,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:38:08,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:38:32,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:38:56,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:38:59,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:10,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:13,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:28,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:32,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:39,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:42,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:47,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:52,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 22:39:59,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]