./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh --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 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 --- 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-2329fc7 [2022-12-14 08:07:57,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:07:57,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:07:57,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:07:57,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:07:57,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:07:57,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:07:57,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:07:57,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:07:57,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:07:57,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:07:57,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:07:57,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:07:57,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:07:57,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:07:57,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:07:57,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:07:57,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:07:57,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:07:57,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:07:57,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:07:57,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:07:57,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:07:57,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:07:57,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:07:57,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:07:57,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:07:57,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:07:57,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:07:57,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:07:57,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:07:57,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:07:57,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:07:57,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:07:57,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:07:57,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:07:57,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:07:57,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:07:57,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:07:57,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:07:57,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:07:57,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 08:07:57,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:07:57,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:07:57,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:07:57,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:07:57,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:07:57,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:07:57,646 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:07:57,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:07:57,646 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:07:57,646 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:07:57,646 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:07:57,647 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:07:57,647 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:07:57,647 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:07:57,647 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:07:57,647 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:07:57,647 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:07:57,648 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:07:57,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:07:57,648 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:07:57,649 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:07:57,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:07:57,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:07:57,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:07:57,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:07:57,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:07:57,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:07:57,650 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 08:07:57,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:07:57,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:07:57,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:07:57,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:07:57,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:07:57,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:07:57,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:07:57,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:07:57,651 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:07:57,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:07:57,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:07:57,652 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:07:57,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:07:57,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:07:57,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:07:57,652 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_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36c3c3dc239d6629a8ba20aca175d79c45880ab21458cd8ebdaac3a8ef359066 [2022-12-14 08:07:57,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:07:57,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:07:57,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:07:57,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:07:57,837 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:07:57,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2022-12-14 08:08:00,482 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:08:00,704 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:08:00,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2022-12-14 08:08:00,714 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/data/54842db02/a80fbbd0a44e4bc79d02a403ac3663de/FLAGf9f3c5f84 [2022-12-14 08:08:00,728 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/data/54842db02/a80fbbd0a44e4bc79d02a403ac3663de [2022-12-14 08:08:00,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:08:00,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:08:00,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:08:00,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:08:00,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:08:00,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:08:00" (1/1) ... [2022-12-14 08:08:00,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614b61a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:00, skipping insertion in model container [2022-12-14 08:08:00,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:08:00" (1/1) ... [2022-12-14 08:08:00,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:08:00,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:08:00,881 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:08:00,991 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_06a4d68e-9efd-409d-96bf-36ec1cb5e346/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-12-14 08:08:00,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:08:01,008 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:08:01,017 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:08:01,031 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_06a4d68e-9efd-409d-96bf-36ec1cb5e346/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-12-14 08:08:01,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:08:01,056 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:08:01,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01 WrapperNode [2022-12-14 08:08:01,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:08:01,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:08:01,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:08:01,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:08:01,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,086 INFO L138 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-12-14 08:08:01,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:08:01,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:08:01,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:08:01,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:08:01,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:08:01,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:08:01,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:08:01,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:08:01,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (1/1) ... [2022-12-14 08:08:01,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:08:01,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:08:01,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:08:01,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:08:01,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:08:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:08:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 08:08:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:08:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:08:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:08:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:08:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-12-14 08:08:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-12-14 08:08:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:08:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:08:01,166 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 08:08:01,258 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:08:01,259 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:08:01,392 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:08:01,397 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:08:01,398 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:08:01,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:08:01 BoogieIcfgContainer [2022-12-14 08:08:01,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:08:01,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:08:01,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:08:01,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:08:01,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:08:00" (1/3) ... [2022-12-14 08:08:01,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac4785d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:08:01, skipping insertion in model container [2022-12-14 08:08:01,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:08:01" (2/3) ... [2022-12-14 08:08:01,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac4785d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:08:01, skipping insertion in model container [2022-12-14 08:08:01,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:08:01" (3/3) ... [2022-12-14 08:08:01,405 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-12-14 08:08:01,412 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:08:01,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:08:01,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 08:08:01,421 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:08:01,462 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 08:08:01,487 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:08:01,498 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 87 transitions, 182 flow [2022-12-14 08:08:01,500 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 87 transitions, 182 flow [2022-12-14 08:08:01,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 87 transitions, 182 flow [2022-12-14 08:08:01,536 INFO L130 PetriNetUnfolder]: 3/86 cut-off events. [2022-12-14 08:08:01,536 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 08:08:01,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 86 events. 3/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-14 08:08:01,540 INFO L119 LiptonReduction]: Number of co-enabled transitions 660 [2022-12-14 08:08:03,930 INFO L134 LiptonReduction]: Checked pairs total: 1347 [2022-12-14 08:08:03,930 INFO L136 LiptonReduction]: Total number of compositions: 79 [2022-12-14 08:08:03,936 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 17 transitions, 42 flow [2022-12-14 08:08:03,944 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 34 states have internal predecessors, (67), 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) [2022-12-14 08:08:03,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:08:03,961 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;@7c1604e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:08:03,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-14 08:08:03,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 34 states have internal predecessors, (67), 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) [2022-12-14 08:08:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:08:03,966 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:03,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:08:03,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:08:03,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:03,970 INFO L85 PathProgramCache]: Analyzing trace with hash 9527999, now seen corresponding path program 1 times [2022-12-14 08:08:03,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:03,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737351822] [2022-12-14 08:08:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:03,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:08:04,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:04,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737351822] [2022-12-14 08:08:04,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737351822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:04,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:04,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:08:04,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775851154] [2022-12-14 08:08:04,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:04,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:08:04,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:04,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:08:04,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:08:04,128 INFO L87 Difference]: Start difference. First operand has 35 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 34 states have internal predecessors, (67), 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 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-12-14 08:08:04,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:04,148 INFO L93 Difference]: Finished difference Result 30 states and 52 transitions. [2022-12-14 08:08:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:08:04,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-12-14 08:08:04,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:04,155 INFO L225 Difference]: With dead ends: 30 [2022-12-14 08:08:04,155 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 08:08:04,156 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 [2022-12-14 08:08:04,158 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:04,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:08:04,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 08:08:04,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-14 08:08:04,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.9259259259259258) internal successors, (52), 29 states have internal predecessors, (52), 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) [2022-12-14 08:08:04,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 52 transitions. [2022-12-14 08:08:04,181 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 52 transitions. Word has length 4 [2022-12-14 08:08:04,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:04,181 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 52 transitions. [2022-12-14 08:08:04,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-12-14 08:08:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2022-12-14 08:08:04,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:08:04,182 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:04,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:08:04,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:08:04,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:08:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:04,183 INFO L85 PathProgramCache]: Analyzing trace with hash 9528509, now seen corresponding path program 1 times [2022-12-14 08:08:04,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:04,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383210807] [2022-12-14 08:08:04,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:04,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:08:04,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:04,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383210807] [2022-12-14 08:08:04,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383210807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:04,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:04,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:08:04,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6107384] [2022-12-14 08:08:04,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:04,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:08:04,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:08:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:08:04,235 INFO L87 Difference]: Start difference. First operand 30 states and 52 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-14 08:08:04,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:04,256 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2022-12-14 08:08:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:08:04,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-12-14 08:08:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:04,258 INFO L225 Difference]: With dead ends: 42 [2022-12-14 08:08:04,258 INFO L226 Difference]: Without dead ends: 40 [2022-12-14 08:08:04,258 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 [2022-12-14 08:08:04,259 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:04,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:08:04,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-14 08:08:04,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2022-12-14 08:08:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.9310344827586208) internal successors, (56), 31 states have internal predecessors, (56), 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) [2022-12-14 08:08:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 56 transitions. [2022-12-14 08:08:04,264 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 56 transitions. Word has length 4 [2022-12-14 08:08:04,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:04,264 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 56 transitions. [2022-12-14 08:08:04,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-14 08:08:04,264 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 56 transitions. [2022-12-14 08:08:04,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 08:08:04,264 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:04,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 08:08:04,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:08:04,265 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:08:04,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:04,265 INFO L85 PathProgramCache]: Analyzing trace with hash 566452339, now seen corresponding path program 1 times [2022-12-14 08:08:04,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:04,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779606206] [2022-12-14 08:08:04,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:04,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:08:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:08:04,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:08:04,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779606206] [2022-12-14 08:08:04,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779606206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:08:04,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:08:04,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:08:04,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261658492] [2022-12-14 08:08:04,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:08:04,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:08:04,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:08:04,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:08:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:08:04,302 INFO L87 Difference]: Start difference. First operand 32 states and 56 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-12-14 08:08:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:08:04,321 INFO L93 Difference]: Finished difference Result 31 states and 53 transitions. [2022-12-14 08:08:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:08:04,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 6 [2022-12-14 08:08:04,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:08:04,322 INFO L225 Difference]: With dead ends: 31 [2022-12-14 08:08:04,322 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 08:08:04,322 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 [2022-12-14 08:08:04,323 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:08:04,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:08:04,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 08:08:04,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-14 08:08:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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) [2022-12-14 08:08:04,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 33 transitions. [2022-12-14 08:08:04,327 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 33 transitions. Word has length 6 [2022-12-14 08:08:04,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:08:04,327 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 33 transitions. [2022-12-14 08:08:04,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-12-14 08:08:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2022-12-14 08:08:04,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 08:08:04,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:08:04,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:08:04,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:08:04,328 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:08:04,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:08:04,329 INFO L85 PathProgramCache]: Analyzing trace with hash 381197754, now seen corresponding path program 1 times [2022-12-14 08:08:04,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:08:04,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661647414] [2022-12-14 08:08:04,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:08:04,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:08:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:08:04,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:08:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:08:04,384 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:08:04,384 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:08:04,385 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2022-12-14 08:08:04,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2022-12-14 08:08:04,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2022-12-14 08:08:04,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-14 08:08:04,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2022-12-14 08:08:04,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:08:04,390 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 08:08:04,395 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:08:04,395 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:08:04,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:08:04 BasicIcfg [2022-12-14 08:08:04,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:08:04,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:08:04,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:08:04,413 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:08:04,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:08:01" (3/4) ... [2022-12-14 08:08:04,415 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:08:04,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:08:04,416 INFO L158 Benchmark]: Toolchain (without parser) took 3684.09ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 128.8MB in the beginning and 95.6MB in the end (delta: 33.2MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-12-14 08:08:04,416 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:08:04,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.27ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 108.7MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 08:08:04,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.31ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:08:04,416 INFO L158 Benchmark]: Boogie Preprocessor took 19.04ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 105.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:08:04,417 INFO L158 Benchmark]: RCFGBuilder took 292.30ms. Allocated memory is still 167.8MB. Free memory was 105.1MB in the beginning and 91.0MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 08:08:04,417 INFO L158 Benchmark]: TraceAbstraction took 3011.00ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 90.4MB in the beginning and 95.6MB in the end (delta: -5.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-12-14 08:08:04,417 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 201.3MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:08:04,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.27ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 108.7MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.31ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.04ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 105.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 292.30ms. Allocated memory is still 167.8MB. Free memory was 105.1MB in the beginning and 91.0MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3011.00ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 90.4MB in the beginning and 95.6MB in the end (delta: -5.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Witness Printer took 2.84ms. Allocated memory is still 201.3MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 88 PlacesBefore, 19 PlacesAfterwards, 87 TransitionsBefore, 17 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 79 TotalNumberOfCompositions, 1347 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 963, independent: 875, independent conditional: 0, independent unconditional: 875, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 497, independent: 477, independent conditional: 0, independent unconditional: 477, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 497, independent: 474, independent conditional: 0, independent unconditional: 474, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 29, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 963, independent: 398, independent conditional: 0, independent unconditional: 398, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 497, unknown conditional: 0, unknown unconditional: 497] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 704]: Data race detected Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L709] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L713] 0 int i = 0; VAL [arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0] [L704] 1 x == 42 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L713] COND TRUE 0 i <= 42 [L714] 0 x = i VAL [arg={0:0}, arg={0:0}, cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x = i=119] [L704] 1 x == 42 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] Now there is a data race on ~x~0 between C: x = i [714] and C: x == 42 [704] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 08:08:04,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a4d68e-9efd-409d-96bf-36ec1cb5e346/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE