./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:59:29,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:59:29,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:59:30,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:59:30,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:59:30,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:59:30,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:59:30,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:59:30,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:59:30,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:59:30,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:59:30,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:59:30,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:59:30,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:59:30,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:59:30,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:59:30,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:59:30,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:59:30,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:59:30,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:59:30,035 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:59:30,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:59:30,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:59:30,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:59:30,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:59:30,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:59:30,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:59:30,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:59:30,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:59:30,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:59:30,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:59:30,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:59:30,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:59:30,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:59:30,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:59:30,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:59:30,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:59:30,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:59:30,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:59:30,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:59:30,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:59:30,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:59:30,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:59:30,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:59:30,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:59:30,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:59:30,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:59:30,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:59:30,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:59:30,079 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:59:30,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:59:30,079 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:59:30,080 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:59:30,080 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:59:30,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:59:30,080 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:59:30,080 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:59:30,080 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:59:30,081 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:59:30,081 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:59:30,082 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:59:30,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:59:30,083 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:59:30,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:59:30,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:59:30,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:59:30,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:59:30,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:59:30,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:59:30,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:59:30,084 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:59:30,084 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:59:30,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:59:30,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:59:30,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:59:30,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:59:30,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:59:30,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:59:30,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:59:30,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:59:30,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:59:30,086 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:59:30,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:59:30,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:59:30,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:59:30,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:59:30,086 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2022-04-18 18:59:30,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:59:30,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:59:30,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:59:30,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:59:30,282 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:59:30,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i [2022-04-18 18:59:30,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/47094cdd2/24e77c20303c4726b27055ce0dccaf11/FLAG8cfd57f96 [2022-04-18 18:59:30,735 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:59:30,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i [2022-04-18 18:59:30,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/47094cdd2/24e77c20303c4726b27055ce0dccaf11/FLAG8cfd57f96 [2022-04-18 18:59:31,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/47094cdd2/24e77c20303c4726b27055ce0dccaf11 [2022-04-18 18:59:31,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:59:31,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:59:31,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:59:31,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:59:31,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:59:31,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e52b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31, skipping insertion in model container [2022-04-18 18:59:31,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:59:31,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:59:31,275 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 18:59:31,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[30448,30461] [2022-04-18 18:59:31,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[30811,30824] [2022-04-18 18:59:31,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31483,31496] [2022-04-18 18:59:31,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31534,31547] [2022-04-18 18:59:31,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31683,31696] [2022-04-18 18:59:31,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31760,31773] [2022-04-18 18:59:31,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31807,31820] [2022-04-18 18:59:31,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31916,31929] [2022-04-18 18:59:31,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32035,32048] [2022-04-18 18:59:31,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32083,32096] [2022-04-18 18:59:31,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32160,32173] [2022-04-18 18:59:31,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32286,32299] [2022-04-18 18:59:31,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32869,32882] [2022-04-18 18:59:31,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32946,32959] [2022-04-18 18:59:31,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:59:31,443 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:59:31,464 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 18:59:31,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[30448,30461] [2022-04-18 18:59:31,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[30811,30824] [2022-04-18 18:59:31,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31483,31496] [2022-04-18 18:59:31,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31534,31547] [2022-04-18 18:59:31,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31683,31696] [2022-04-18 18:59:31,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31760,31773] [2022-04-18 18:59:31,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31807,31820] [2022-04-18 18:59:31,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[31916,31929] [2022-04-18 18:59:31,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32035,32048] [2022-04-18 18:59:31,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32083,32096] [2022-04-18 18:59:31,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32160,32173] [2022-04-18 18:59:31,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32286,32299] [2022-04-18 18:59:31,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32869,32882] [2022-04-18 18:59:31,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_3t.i[32946,32959] [2022-04-18 18:59:31,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:59:31,553 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:59:31,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31 WrapperNode [2022-04-18 18:59:31,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:59:31,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:59:31,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:59:31,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:59:31,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,629 INFO L137 Inliner]: procedures = 174, calls = 75, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 786 [2022-04-18 18:59:31,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:59:31,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:59:31,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:59:31,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:59:31,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:59:31,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:59:31,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:59:31,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:59:31,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (1/1) ... [2022-04-18 18:59:31,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:59:31,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:59:31,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:59:31,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:59:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:59:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:59:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:59:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-04-18 18:59:31,785 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-04-18 18:59:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:59:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:59:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:59:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:59:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:59:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:59:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:59:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:59:31,788 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:59:31,880 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:59:31,881 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:59:32,596 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:59:32,609 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:59:32,610 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-04-18 18:59:32,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:59:32 BoogieIcfgContainer [2022-04-18 18:59:32,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:59:32,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:59:32,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:59:32,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:59:32,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:59:31" (1/3) ... [2022-04-18 18:59:32,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a7bc52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:59:32, skipping insertion in model container [2022-04-18 18:59:32,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:31" (2/3) ... [2022-04-18 18:59:32,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a7bc52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:59:32, skipping insertion in model container [2022-04-18 18:59:32,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:59:32" (3/3) ... [2022-04-18 18:59:32,630 INFO L111 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2022-04-18 18:59:32,635 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:59:32,636 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:59:32,636 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2022-04-18 18:59:32,636 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:59:32,756 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:59:32,784 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:59:32,788 INFO L340 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 [2022-04-18 18:59:32,789 INFO L341 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2022-04-18 18:59:32,812 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:59:32,820 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 844 places, 903 transitions, 1814 flow [2022-04-18 18:59:32,822 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 844 places, 903 transitions, 1814 flow [2022-04-18 18:59:32,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 844 places, 903 transitions, 1814 flow [2022-04-18 18:59:33,166 INFO L129 PetriNetUnfolder]: 94/1325 cut-off events. [2022-04-18 18:59:33,167 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:59:33,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1325 events. 94/1325 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4501 event pairs, 0 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 792. Up to 4 conditions per place. [2022-04-18 18:59:33,281 INFO L116 LiptonReduction]: Number of co-enabled transitions 312440 [2022-04-18 19:00:08,055 INFO L131 LiptonReduction]: Checked pairs total: 5191300 [2022-04-18 19:00:08,055 INFO L133 LiptonReduction]: Total number of compositions: 685 [2022-04-18 19:00:08,063 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 435 places, 471 transitions, 950 flow [2022-04-18 19:00:08,887 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45274 states, 43832 states have (on average 2.2300602299689722) internal successors, (97748), 45273 states have internal predecessors, (97748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:08,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 45274 states, 43832 states have (on average 2.2300602299689722) internal successors, (97748), 45273 states have internal predecessors, (97748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:08,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-04-18 19:00:08,997 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:08,997 INFO L499 BasicCegarLoop]: trace histogram [1, 1] [2022-04-18 19:00:08,997 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-04-18 19:00:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash 98445, now seen corresponding path program 1 times [2022-04-18 19:00:09,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:09,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398638535] [2022-04-18 19:00:09,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:09,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:09,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:09,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398638535] [2022-04-18 19:00:09,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398638535] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:09,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:09,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:00:09,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339725722] [2022-04-18 19:00:09,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:09,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:00:09,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:09,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:00:09,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:00:09,362 INFO L87 Difference]: Start difference. First operand has 45274 states, 43832 states have (on average 2.2300602299689722) internal successors, (97748), 45273 states have internal predecessors, (97748), 0 states have call successors, (0), 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) [2022-04-18 19:00:10,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:10,106 INFO L93 Difference]: Finished difference Result 45269 states and 93503 transitions. [2022-04-18 19:00:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:00:10,108 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 [2022-04-18 19:00:10,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:10,309 INFO L225 Difference]: With dead ends: 45269 [2022-04-18 19:00:10,309 INFO L226 Difference]: Without dead ends: 45267 [2022-04-18 19:00:10,310 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:10,312 INFO L913 BasicCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:10,312 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 19:00:10,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45267 states. [2022-04-18 19:00:11,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45267 to 45267. [2022-04-18 19:00:11,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45267 states, 43832 states have (on average 2.133144734440591) internal successors, (93500), 45266 states have internal predecessors, (93500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45267 states to 45267 states and 93500 transitions. [2022-04-18 19:00:12,080 INFO L78 Accepts]: Start accepts. Automaton has 45267 states and 93500 transitions. Word has length 2 [2022-04-18 19:00:12,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:12,080 INFO L478 AbstractCegarLoop]: Abstraction has 45267 states and 93500 transitions. [2022-04-18 19:00:12,081 INFO L479 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) [2022-04-18 19:00:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 45267 states and 93500 transitions. [2022-04-18 19:00:12,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 19:00:12,082 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:12,082 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-04-18 19:00:12,082 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:00:12,082 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-04-18 19:00:12,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:12,083 INFO L85 PathProgramCache]: Analyzing trace with hash -592093739, now seen corresponding path program 1 times [2022-04-18 19:00:12,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:12,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937102912] [2022-04-18 19:00:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:12,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:00:12,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:12,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937102912] [2022-04-18 19:00:12,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937102912] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:12,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:12,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:00:12,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711070236] [2022-04-18 19:00:12,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:12,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:00:12,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:12,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:00:12,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:00:12,164 INFO L87 Difference]: Start difference. First operand 45267 states and 93500 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) [2022-04-18 19:00:12,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:12,896 INFO L93 Difference]: Finished difference Result 45268 states and 93501 transitions. [2022-04-18 19:00:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:00:12,897 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 [2022-04-18 19:00:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:13,026 INFO L225 Difference]: With dead ends: 45268 [2022-04-18 19:00:13,026 INFO L226 Difference]: Without dead ends: 45268 [2022-04-18 19:00:13,026 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:13,027 INFO L913 BasicCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:13,028 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:00:13,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45268 states. [2022-04-18 19:00:13,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45268 to 45268. [2022-04-18 19:00:13,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45268 states, 43833 states have (on average 2.133118883033331) internal successors, (93501), 45267 states have internal predecessors, (93501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:14,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45268 states to 45268 states and 93501 transitions. [2022-04-18 19:00:14,155 INFO L78 Accepts]: Start accepts. Automaton has 45268 states and 93501 transitions. Word has length 7 [2022-04-18 19:00:14,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:14,156 INFO L478 AbstractCegarLoop]: Abstraction has 45268 states and 93501 transitions. [2022-04-18 19:00:14,156 INFO L479 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) [2022-04-18 19:00:14,156 INFO L276 IsEmpty]: Start isEmpty. Operand 45268 states and 93501 transitions. [2022-04-18 19:00:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 19:00:14,157 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:14,172 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:14,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:00:14,172 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-04-18 19:00:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash -746389395, now seen corresponding path program 1 times [2022-04-18 19:00:14,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:14,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681547964] [2022-04-18 19:00:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:14,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:00:14,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:14,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681547964] [2022-04-18 19:00:14,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681547964] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 19:00:14,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745716797] [2022-04-18 19:00:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:14,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:00:14,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:00:14,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 19:00:14,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 19:00:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:14,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 19:00:14,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:00:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:00:14,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 19:00:14,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:00:14,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745716797] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 19:00:14,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1431310215] [2022-04-18 19:00:14,491 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:1603) 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:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2022-04-18 19:00:14,493 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 19:00:14,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-04-18 19:00:14,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509268637] [2022-04-18 19:00:14,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 19:00:14,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:00:14,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:14,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:00:14,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:00:14,495 INFO L87 Difference]: Start difference. First operand 45268 states and 93501 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 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) [2022-04-18 19:00:15,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:15,305 INFO L93 Difference]: Finished difference Result 45270 states and 93503 transitions. [2022-04-18 19:00:15,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 19:00:15,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 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 8 [2022-04-18 19:00:15,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:15,433 INFO L225 Difference]: With dead ends: 45270 [2022-04-18 19:00:15,433 INFO L226 Difference]: Without dead ends: 45270 [2022-04-18 19:00:15,433 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:00:15,442 INFO L913 BasicCegarLoop]: 301 mSDtfsCounter, 0 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:15,444 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 903 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 19:00:15,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45270 states. [2022-04-18 19:00:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45270 to 45270. [2022-04-18 19:00:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45270 states, 43835 states have (on average 2.1330671837572717) internal successors, (93503), 45269 states have internal predecessors, (93503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45270 states to 45270 states and 93503 transitions. [2022-04-18 19:00:16,249 INFO L78 Accepts]: Start accepts. Automaton has 45270 states and 93503 transitions. Word has length 8 [2022-04-18 19:00:16,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:16,249 INFO L478 AbstractCegarLoop]: Abstraction has 45270 states and 93503 transitions. [2022-04-18 19:00:16,250 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 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) [2022-04-18 19:00:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 45270 states and 93503 transitions. [2022-04-18 19:00:16,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:00:16,250 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:16,250 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2022-04-18 19:00:16,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 19:00:16,466 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:00:16,466 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-04-18 19:00:16,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:16,466 INFO L85 PathProgramCache]: Analyzing trace with hash 811142509, now seen corresponding path program 2 times [2022-04-18 19:00:16,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:16,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010613271] [2022-04-18 19:00:16,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:16,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:00:16,543 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:00:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:00:16,596 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:00:16,596 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:00:16,597 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (110 of 111 remaining) [2022-04-18 19:00:16,598 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (109 of 111 remaining) [2022-04-18 19:00:16,598 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (108 of 111 remaining) [2022-04-18 19:00:16,598 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (107 of 111 remaining) [2022-04-18 19:00:16,599 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (106 of 111 remaining) [2022-04-18 19:00:16,599 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (105 of 111 remaining) [2022-04-18 19:00:16,599 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (104 of 111 remaining) [2022-04-18 19:00:16,599 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (103 of 111 remaining) [2022-04-18 19:00:16,599 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (102 of 111 remaining) [2022-04-18 19:00:16,599 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (101 of 111 remaining) [2022-04-18 19:00:16,600 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (100 of 111 remaining) [2022-04-18 19:00:16,600 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (99 of 111 remaining) [2022-04-18 19:00:16,600 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (98 of 111 remaining) [2022-04-18 19:00:16,600 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (97 of 111 remaining) [2022-04-18 19:00:16,600 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (96 of 111 remaining) [2022-04-18 19:00:16,600 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (95 of 111 remaining) [2022-04-18 19:00:16,600 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (94 of 111 remaining) [2022-04-18 19:00:16,600 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (93 of 111 remaining) [2022-04-18 19:00:16,601 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (92 of 111 remaining) [2022-04-18 19:00:16,601 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (91 of 111 remaining) [2022-04-18 19:00:16,601 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (90 of 111 remaining) [2022-04-18 19:00:16,601 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (89 of 111 remaining) [2022-04-18 19:00:16,601 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (88 of 111 remaining) [2022-04-18 19:00:16,601 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (87 of 111 remaining) [2022-04-18 19:00:16,601 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (86 of 111 remaining) [2022-04-18 19:00:16,602 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (85 of 111 remaining) [2022-04-18 19:00:16,602 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (84 of 111 remaining) [2022-04-18 19:00:16,602 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (83 of 111 remaining) [2022-04-18 19:00:16,602 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (82 of 111 remaining) [2022-04-18 19:00:16,602 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (81 of 111 remaining) [2022-04-18 19:00:16,602 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE (80 of 111 remaining) [2022-04-18 19:00:16,602 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE (79 of 111 remaining) [2022-04-18 19:00:16,603 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE (78 of 111 remaining) [2022-04-18 19:00:16,603 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE (77 of 111 remaining) [2022-04-18 19:00:16,603 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE (76 of 111 remaining) [2022-04-18 19:00:16,603 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE (75 of 111 remaining) [2022-04-18 19:00:16,603 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE (74 of 111 remaining) [2022-04-18 19:00:16,603 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE (73 of 111 remaining) [2022-04-18 19:00:16,603 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE (72 of 111 remaining) [2022-04-18 19:00:16,603 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE (71 of 111 remaining) [2022-04-18 19:00:16,604 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE (70 of 111 remaining) [2022-04-18 19:00:16,604 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE (69 of 111 remaining) [2022-04-18 19:00:16,604 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (68 of 111 remaining) [2022-04-18 19:00:16,604 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (67 of 111 remaining) [2022-04-18 19:00:16,604 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (66 of 111 remaining) [2022-04-18 19:00:16,604 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (65 of 111 remaining) [2022-04-18 19:00:16,604 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (64 of 111 remaining) [2022-04-18 19:00:16,605 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (63 of 111 remaining) [2022-04-18 19:00:16,605 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (62 of 111 remaining) [2022-04-18 19:00:16,605 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (61 of 111 remaining) [2022-04-18 19:00:16,605 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (60 of 111 remaining) [2022-04-18 19:00:16,605 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (59 of 111 remaining) [2022-04-18 19:00:16,605 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (58 of 111 remaining) [2022-04-18 19:00:16,605 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (57 of 111 remaining) [2022-04-18 19:00:16,606 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (56 of 111 remaining) [2022-04-18 19:00:16,606 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (55 of 111 remaining) [2022-04-18 19:00:16,606 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (54 of 111 remaining) [2022-04-18 19:00:16,606 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (53 of 111 remaining) [2022-04-18 19:00:16,606 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (52 of 111 remaining) [2022-04-18 19:00:16,606 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (51 of 111 remaining) [2022-04-18 19:00:16,606 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (50 of 111 remaining) [2022-04-18 19:00:16,606 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (49 of 111 remaining) [2022-04-18 19:00:16,607 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (48 of 111 remaining) [2022-04-18 19:00:16,607 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (47 of 111 remaining) [2022-04-18 19:00:16,607 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (46 of 111 remaining) [2022-04-18 19:00:16,607 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (45 of 111 remaining) [2022-04-18 19:00:16,607 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (44 of 111 remaining) [2022-04-18 19:00:16,607 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (43 of 111 remaining) [2022-04-18 19:00:16,607 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (42 of 111 remaining) [2022-04-18 19:00:16,608 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (41 of 111 remaining) [2022-04-18 19:00:16,608 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (40 of 111 remaining) [2022-04-18 19:00:16,608 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (39 of 111 remaining) [2022-04-18 19:00:16,608 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (38 of 111 remaining) [2022-04-18 19:00:16,608 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (37 of 111 remaining) [2022-04-18 19:00:16,608 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (36 of 111 remaining) [2022-04-18 19:00:16,608 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (35 of 111 remaining) [2022-04-18 19:00:16,609 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (34 of 111 remaining) [2022-04-18 19:00:16,609 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (33 of 111 remaining) [2022-04-18 19:00:16,609 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (32 of 111 remaining) [2022-04-18 19:00:16,609 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (31 of 111 remaining) [2022-04-18 19:00:16,609 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (30 of 111 remaining) [2022-04-18 19:00:16,609 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (29 of 111 remaining) [2022-04-18 19:00:16,609 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (28 of 111 remaining) [2022-04-18 19:00:16,609 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (27 of 111 remaining) [2022-04-18 19:00:16,610 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (26 of 111 remaining) [2022-04-18 19:00:16,610 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (25 of 111 remaining) [2022-04-18 19:00:16,610 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (24 of 111 remaining) [2022-04-18 19:00:16,610 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (23 of 111 remaining) [2022-04-18 19:00:16,610 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (22 of 111 remaining) [2022-04-18 19:00:16,610 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (21 of 111 remaining) [2022-04-18 19:00:16,610 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (20 of 111 remaining) [2022-04-18 19:00:16,610 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (19 of 111 remaining) [2022-04-18 19:00:16,611 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (18 of 111 remaining) [2022-04-18 19:00:16,611 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (17 of 111 remaining) [2022-04-18 19:00:16,611 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (16 of 111 remaining) [2022-04-18 19:00:16,611 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (15 of 111 remaining) [2022-04-18 19:00:16,611 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (14 of 111 remaining) [2022-04-18 19:00:16,611 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (13 of 111 remaining) [2022-04-18 19:00:16,611 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (12 of 111 remaining) [2022-04-18 19:00:16,612 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (11 of 111 remaining) [2022-04-18 19:00:16,612 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (10 of 111 remaining) [2022-04-18 19:00:16,612 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (9 of 111 remaining) [2022-04-18 19:00:16,612 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (8 of 111 remaining) [2022-04-18 19:00:16,612 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (7 of 111 remaining) [2022-04-18 19:00:16,612 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (6 of 111 remaining) [2022-04-18 19:00:16,612 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (5 of 111 remaining) [2022-04-18 19:00:16,612 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (4 of 111 remaining) [2022-04-18 19:00:16,613 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (3 of 111 remaining) [2022-04-18 19:00:16,613 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (2 of 111 remaining) [2022-04-18 19:00:16,613 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (1 of 111 remaining) [2022-04-18 19:00:16,613 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (0 of 111 remaining) [2022-04-18 19:00:16,613 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:00:16,615 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-04-18 19:00:16,616 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:00:16,616 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:00:16,825 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 19:00:16,826 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:00:16,826 INFO L340 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 [2022-04-18 19:00:16,826 INFO L341 AbstractCegarLoop]: Starting to check reachability of 145 error locations. [2022-04-18 19:00:16,833 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:00:16,833 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1186 places, 1270 transitions, 2558 flow [2022-04-18 19:00:16,833 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 1186 places, 1270 transitions, 2558 flow [2022-04-18 19:00:16,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 1186 places, 1270 transitions, 2558 flow [2022-04-18 19:00:17,638 INFO L129 PetriNetUnfolder]: 159/2173 cut-off events. [2022-04-18 19:00:17,638 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 19:00:17,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 2173 events. 159/2173 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 10179 event pairs, 0 based on Foata normal form. 0/1823 useless extension candidates. Maximal degree in co-relation 1327. Up to 8 conditions per place. [2022-04-18 19:00:18,019 INFO L116 LiptonReduction]: Number of co-enabled transitions 899360 [2022-04-18 19:02:10,771 INFO L131 LiptonReduction]: Checked pairs total: 17395057 [2022-04-18 19:02:10,772 INFO L133 LiptonReduction]: Total number of compositions: 950 [2022-04-18 19:02:10,773 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 642 places, 693 transitions, 1404 flow