./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/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_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/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_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/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 6f1a33edf94ce8e584ad249b95ad5bb2102c6ab4d820eebd8874b39ecbf22785 --- 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 08:35:37,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:35:37,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:35:37,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:35:37,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:35:37,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:35:37,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:35:37,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:35:37,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:35:37,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:35:37,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:35:37,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:35:37,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:35:37,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:35:37,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:35:37,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:35:37,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:35:37,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:35:37,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:35:37,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:35:37,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:35:37,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:35:37,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:35:37,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:35:37,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:35:37,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:35:37,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:35:37,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:35:37,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:35:37,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:35:37,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:35:37,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:35:37,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:35:37,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:35:37,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:35:37,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:35:37,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:35:37,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:35:37,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:35:37,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:35:37,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:35:37,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 08:35:37,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:35:37,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:35:37,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:35:37,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:35:37,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:35:37,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:35:37,700 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:35:37,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:35:37,700 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:35:37,701 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:35:37,701 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:35:37,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:35:37,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:35:37,701 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:35:37,701 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:35:37,702 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:35:37,702 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:35:37,702 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:35:37,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:35:37,703 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:35:37,703 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:35:37,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:35:37,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:35:37,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:35:37,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:35:37,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:35:37,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:35:37,704 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 08:35:37,704 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:35:37,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:35:37,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:35:37,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:35:37,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:35:37,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:35:37,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:35:37,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:35:37,706 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:35:37,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:35:37,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:35:37,706 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:35:37,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:35:37,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:35:37,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:35:37,707 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_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f1a33edf94ce8e584ad249b95ad5bb2102c6ab4d820eebd8874b39ecbf22785 [2022-12-14 08:35:37,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:35:37,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:35:37,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:35:37,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:35:37,918 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:35:37,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i [2022-12-14 08:35:40,504 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:35:40,704 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:35:40,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i [2022-12-14 08:35:40,717 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/data/5603152b7/990ff32634454f80ba87dcfe2eab59f6/FLAGdc50a71f5 [2022-12-14 08:35:41,062 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/data/5603152b7/990ff32634454f80ba87dcfe2eab59f6 [2022-12-14 08:35:41,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:35:41,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:35:41,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:35:41,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:35:41,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:35:41,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae2926c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41, skipping insertion in model container [2022-12-14 08:35:41,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:35:41,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:35:41,307 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_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i[30003,30016] [2022-12-14 08:35:41,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:35:41,336 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:35:41,370 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_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/sv-benchmarks/c/pthread-lit/fkp2013_variant-1.i[30003,30016] [2022-12-14 08:35:41,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:35:41,395 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:35:41,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41 WrapperNode [2022-12-14 08:35:41,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:35:41,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:35:41,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:35:41,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:35:41,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,423 INFO L138 Inliner]: procedures = 172, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2022-12-14 08:35:41,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:35:41,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:35:41,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:35:41,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:35:41,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:35:41,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:35:41,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:35:41,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:35:41,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (1/1) ... [2022-12-14 08:35:41,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:35:41,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:35:41,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:35:41,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:35:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-14 08:35:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-14 08:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 08:35:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 08:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:35:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:35:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:35:41,538 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 08:35:41,633 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:35:41,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:35:41,773 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:35:41,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:35:41,779 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:35:41,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:35:41 BoogieIcfgContainer [2022-12-14 08:35:41,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:35:41,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:35:41,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:35:41,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:35:41,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:35:41" (1/3) ... [2022-12-14 08:35:41,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db8217c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:35:41, skipping insertion in model container [2022-12-14 08:35:41,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:41" (2/3) ... [2022-12-14 08:35:41,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db8217c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:35:41, skipping insertion in model container [2022-12-14 08:35:41,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:35:41" (3/3) ... [2022-12-14 08:35:41,788 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-1.i [2022-12-14 08:35:41,794 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:35:41,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:35:41,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 08:35:41,802 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:35:41,845 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:35:41,868 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:35:41,878 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 109 transitions, 228 flow [2022-12-14 08:35:41,880 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 109 transitions, 228 flow [2022-12-14 08:35:41,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 109 transitions, 228 flow [2022-12-14 08:35:41,920 INFO L130 PetriNetUnfolder]: 4/125 cut-off events. [2022-12-14 08:35:41,920 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 08:35:41,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 125 events. 4/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 165 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 89. Up to 4 conditions per place. [2022-12-14 08:35:41,926 INFO L119 LiptonReduction]: Number of co-enabled transitions 2120 [2022-12-14 08:35:44,080 INFO L134 LiptonReduction]: Checked pairs total: 4051 [2022-12-14 08:35:44,081 INFO L136 LiptonReduction]: Total number of compositions: 115 [2022-12-14 08:35:44,086 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 26 transitions, 62 flow [2022-12-14 08:35:44,109 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 291 states, 255 states have (on average 3.0901960784313727) internal successors, (788), 290 states have internal predecessors, (788), 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 08:35:44,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:35:44,126 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;@7b55213c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:35:44,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-12-14 08:35:44,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 291 states, 255 states have (on average 3.0901960784313727) internal successors, (788), 290 states have internal predecessors, (788), 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 08:35:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 08:35:44,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:44,131 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 08:35:44,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 08:35:44,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:44,135 INFO L85 PathProgramCache]: Analyzing trace with hash 412, now seen corresponding path program 1 times [2022-12-14 08:35:44,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:44,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538311139] [2022-12-14 08:35:44,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:44,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:44,227 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 08:35:44,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:44,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538311139] [2022-12-14 08:35:44,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538311139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:44,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:44,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 08:35:44,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144734898] [2022-12-14 08:35:44,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:44,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:35:44,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:44,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:35:44,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:35:44,250 INFO L87 Difference]: Start difference. First operand has 291 states, 255 states have (on average 3.0901960784313727) internal successors, (788), 290 states have internal predecessors, (788), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 08:35:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:44,282 INFO L93 Difference]: Finished difference Result 175 states and 407 transitions. [2022-12-14 08:35:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:35:44,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 08:35:44,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:44,291 INFO L225 Difference]: With dead ends: 175 [2022-12-14 08:35:44,291 INFO L226 Difference]: Without dead ends: 173 [2022-12-14 08:35:44,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 08:35:44,294 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:44,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:35:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-12-14 08:35:44,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-12-14 08:35:44,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 165 states have (on average 2.4363636363636365) internal successors, (402), 172 states have internal predecessors, (402), 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 08:35:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 402 transitions. [2022-12-14 08:35:44,337 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 402 transitions. Word has length 1 [2022-12-14 08:35:44,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:44,337 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 402 transitions. [2022-12-14 08:35:44,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 08:35:44,338 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 402 transitions. [2022-12-14 08:35:44,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:35:44,338 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:44,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:35:44,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:35:44,339 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 08:35:44,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:44,339 INFO L85 PathProgramCache]: Analyzing trace with hash 12629620, now seen corresponding path program 1 times [2022-12-14 08:35:44,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:44,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544246475] [2022-12-14 08:35:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:44,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:44,412 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 08:35:44,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:44,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544246475] [2022-12-14 08:35:44,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544246475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:44,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:44,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:35:44,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644143198] [2022-12-14 08:35:44,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:44,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:35:44,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:44,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:35:44,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:35:44,415 INFO L87 Difference]: Start difference. First operand 173 states and 402 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 08:35:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:44,451 INFO L93 Difference]: Finished difference Result 208 states and 469 transitions. [2022-12-14 08:35:44,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:35:44,452 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 08:35:44,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:44,454 INFO L225 Difference]: With dead ends: 208 [2022-12-14 08:35:44,455 INFO L226 Difference]: Without dead ends: 204 [2022-12-14 08:35:44,455 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 08:35:44,456 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:44,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:35:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-12-14 08:35:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 170. [2022-12-14 08:35:44,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 163 states have (on average 2.4171779141104293) internal successors, (394), 169 states have internal predecessors, (394), 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 08:35:44,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 394 transitions. [2022-12-14 08:35:44,471 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 394 transitions. Word has length 4 [2022-12-14 08:35:44,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:44,471 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 394 transitions. [2022-12-14 08:35:44,471 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 08:35:44,471 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 394 transitions. [2022-12-14 08:35:44,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 08:35:44,472 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:44,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:35:44,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:35:44,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 08:35:44,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:44,473 INFO L85 PathProgramCache]: Analyzing trace with hash 25942036, now seen corresponding path program 1 times [2022-12-14 08:35:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:44,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295288445] [2022-12-14 08:35:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:44,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:44,536 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 08:35:44,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:44,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295288445] [2022-12-14 08:35:44,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295288445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:44,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:44,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:35:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537439320] [2022-12-14 08:35:44,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:44,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:35:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:44,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:35:44,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:35:44,539 INFO L87 Difference]: Start difference. First operand 170 states and 394 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:44,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:44,567 INFO L93 Difference]: Finished difference Result 164 states and 369 transitions. [2022-12-14 08:35:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:35:44,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 08:35:44,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:44,569 INFO L225 Difference]: With dead ends: 164 [2022-12-14 08:35:44,569 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 08:35:44,570 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 08:35:44,570 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:44,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:35:44,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 08:35:44,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-12-14 08:35:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 153 states have (on average 2.30718954248366) internal successors, (353), 157 states have internal predecessors, (353), 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 08:35:44,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 353 transitions. [2022-12-14 08:35:44,581 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 353 transitions. Word has length 9 [2022-12-14 08:35:44,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:44,581 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 353 transitions. [2022-12-14 08:35:44,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:44,581 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 353 transitions. [2022-12-14 08:35:44,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:35:44,582 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:44,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:35:44,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:35:44,582 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-12-14 08:35:44,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:44,583 INFO L85 PathProgramCache]: Analyzing trace with hash 542630593, now seen corresponding path program 1 times [2022-12-14 08:35:44,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:44,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430687110] [2022-12-14 08:35:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:44,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:35:44,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:35:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:35:44,641 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:35:44,642 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:35:44,642 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-12-14 08:35:44,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-12-14 08:35:44,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-12-14 08:35:44,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-12-14 08:35:44,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-12-14 08:35:44,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-12-14 08:35:44,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-12-14 08:35:44,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-12-14 08:35:44,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-12-14 08:35:44,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2022-12-14 08:35:44,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2022-12-14 08:35:44,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-12-14 08:35:44,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-12-14 08:35:44,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-12-14 08:35:44,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:35:44,647 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 08:35:44,651 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:35:44,651 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:35:44,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:35:44 BasicIcfg [2022-12-14 08:35:44,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:35:44,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:35:44,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:35:44,669 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:35:44,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:35:41" (3/4) ... [2022-12-14 08:35:44,671 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:35:44,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:35:44,672 INFO L158 Benchmark]: Toolchain (without parser) took 3607.01ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 64.4MB in the beginning and 79.0MB in the end (delta: -14.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-12-14 08:35:44,672 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:35:44,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.86ms. Allocated memory is still 107.0MB. Free memory was 64.1MB in the beginning and 44.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 08:35:44,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.80ms. Allocated memory is still 107.0MB. Free memory was 44.7MB in the beginning and 42.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:35:44,673 INFO L158 Benchmark]: Boogie Preprocessor took 41.13ms. Allocated memory is still 107.0MB. Free memory was 42.6MB in the beginning and 79.6MB in the end (delta: -37.0MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-12-14 08:35:44,673 INFO L158 Benchmark]: RCFGBuilder took 315.17ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 79.5MB in the beginning and 103.8MB in the end (delta: -24.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-12-14 08:35:44,674 INFO L158 Benchmark]: TraceAbstraction took 2886.00ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 79.0MB in the end (delta: 24.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-12-14 08:35:44,674 INFO L158 Benchmark]: Witness Printer took 2.33ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:35:44,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.86ms. Allocated memory is still 107.0MB. Free memory was 64.1MB in the beginning and 44.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.80ms. Allocated memory is still 107.0MB. Free memory was 44.7MB in the beginning and 42.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.13ms. Allocated memory is still 107.0MB. Free memory was 42.6MB in the beginning and 79.6MB in the end (delta: -37.0MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 315.17ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 79.5MB in the beginning and 103.8MB in the end (delta: -24.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2886.00ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 79.0MB in the end (delta: 24.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Witness Printer took 2.33ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. 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: 2.2s, 112 PlacesBefore, 30 PlacesAfterwards, 109 TransitionsBefore, 26 TransitionsAfterwards, 2120 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 115 TotalNumberOfCompositions, 4051 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2860, independent: 2733, independent conditional: 0, independent unconditional: 2733, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1665, independent: 1637, independent conditional: 0, independent unconditional: 1637, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1665, independent: 1596, independent conditional: 0, independent unconditional: 1596, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 69, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2860, independent: 1096, independent conditional: 0, independent unconditional: 1096, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 1665, unknown conditional: 0, unknown unconditional: 1665] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: 700]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; [L698] 0 volatile int n; [L710] 0 pthread_t t1, t2; [L711] 0 int i; [L712] 0 x = 0 [L713] 0 n = __VERIFIER_nondet_int() [L714] EXPR 0 n > 0 [L714] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) [L714] RET 0 assume_abort_if_not(n > 0) [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, n=1, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L700] 1 x <= n VAL [arg={0:0}, arg={0:0}, n=1, x=0] [L716] 0 i = 0 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, n=1, t1={5:0}, t2={3:0}, x=0] [L716] 0 i < n [L716] COND TRUE 0 i < n [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=0, n=1, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L704] 2 int t; [L705] 2 t = x [L706] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=1, t=0, x=1, x = t + 1=52] [L700] 1 x <= n VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1, x = t + 1=52] Now there is a data race on ~x~0 between C: x = t + 1 [706] and C: x <= n [700] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: 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 there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - 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: 717]: 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. - UnprovableResult [Line: 715]: 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 5 procedures, 141 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 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 08:35:44,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea89b32e-0c6c-4e7e-ba2a-a3b93ccb65e9/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