./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fea91513c96246b75c49fa902e51d33d0640cbe9a02143a9b8a08050c0f0b4f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:14:18,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:14:18,893 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 00:14:18,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:14:18,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:14:18,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:14:18,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:14:18,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:14:18,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:14:18,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:14:18,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:14:18,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:14:18,937 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:14:18,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:14:18,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:14:18,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:14:18,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:14:18,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:14:18,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:14:18,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:14:18,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:14:18,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:14:18,939 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 00:14:18,939 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:14:18,939 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:14:18,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:14:18,940 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:14:18,940 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:14:18,940 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:14:18,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:14:18,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:14:18,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:14:18,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:14:18,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:14:18,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:14:18,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:14:18,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:14:18,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:14:18,941 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:14:18,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:14:18,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:14:18,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:14:18,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:14:18,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:14:18,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:14:18,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:14:18,943 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> Automizer 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 -> 6fea91513c96246b75c49fa902e51d33d0640cbe9a02143a9b8a08050c0f0b4f [2024-11-24 00:14:19,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:14:19,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:14:19,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:14:19,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:14:19,323 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:14:19,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i [2024-11-24 00:14:22,755 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/data/7c7236338/b1a33e41abb34ec5af5e6b29366b4670/FLAG1e8b1db64 [2024-11-24 00:14:23,168 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:14:23,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i [2024-11-24 00:14:23,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/data/7c7236338/b1a33e41abb34ec5af5e6b29366b4670/FLAG1e8b1db64 [2024-11-24 00:14:23,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/data/7c7236338/b1a33e41abb34ec5af5e6b29366b4670 [2024-11-24 00:14:23,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:14:23,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:14:23,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:14:23,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:14:23,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:14:23,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:23,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746fbc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23, skipping insertion in model container [2024-11-24 00:14:23,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:23,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:14:23,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:14:23,755 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:14:23,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:14:23,918 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:14:23,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23 WrapperNode [2024-11-24 00:14:23,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:14:23,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:14:23,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:14:23,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:14:23,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:23,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:23,986 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-24 00:14:23,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:14:23,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:14:23,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:14:23,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:14:23,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:23,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,022 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:14:24,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:14:24,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:14:24,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:14:24,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (1/1) ... [2024-11-24 00:14:24,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:14:24,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:14:24,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:14:24,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:14:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:14:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:14:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:14:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:14:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-24 00:14:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-24 00:14:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:14:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:14:24,115 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:14:24,252 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:14:24,253 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:14:24,569 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:14:24,569 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:14:24,584 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:14:24,584 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:14:24,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:14:24 BoogieIcfgContainer [2024-11-24 00:14:24,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:14:24,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:14:24,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:14:24,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:14:24,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:14:23" (1/3) ... [2024-11-24 00:14:24,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23290a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:14:24, skipping insertion in model container [2024-11-24 00:14:24,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:14:23" (2/3) ... [2024-11-24 00:14:24,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23290a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:14:24, skipping insertion in model container [2024-11-24 00:14:24,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:14:24" (3/3) ... [2024-11-24 00:14:24,598 INFO L128 eAbstractionObserver]: Analyzing ICFG per-thread-array-init-race.i [2024-11-24 00:14:24,616 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:14:24,618 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG per-thread-array-init-race.i that has 2 procedures, 89 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-24 00:14:24,619 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:14:24,685 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 00:14:24,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 93 transitions, 193 flow [2024-11-24 00:14:24,835 INFO L124 PetriNetUnfolderBase]: 6/125 cut-off events. [2024-11-24 00:14:24,839 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:14:24,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 125 events. 6/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 156 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2024-11-24 00:14:24,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 93 transitions, 193 flow [2024-11-24 00:14:24,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 93 transitions, 193 flow [2024-11-24 00:14:24,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:14:24,878 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6e961028, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:14:24,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-24 00:14:24,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:14:24,893 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-24 00:14:24,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:14:24,893 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:14:24,894 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:24,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:14:24,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:24,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1308747700, now seen corresponding path program 1 times [2024-11-24 00:14:24,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:14:24,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418988259] [2024-11-24 00:14:24,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:24,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:14:25,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:14:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418988259] [2024-11-24 00:14:25,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418988259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:14:25,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:14:25,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:14:25,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202152931] [2024-11-24 00:14:25,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:25,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:14:25,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:14:25,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:14:25,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:14:25,670 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 93 [2024-11-24 00:14:25,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 193 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2024-11-24 00:14:25,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:14:25,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 93 [2024-11-24 00:14:25,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:14:25,745 INFO L124 PetriNetUnfolderBase]: 1/127 cut-off events. [2024-11-24 00:14:25,746 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 00:14:25,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 127 events. 1/127 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 2/122 useless extension candidates. Maximal degree in co-relation 23. Up to 16 conditions per place. [2024-11-24 00:14:25,748 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 11 selfloop transitions, 2 changer transitions 6/95 dead transitions. [2024-11-24 00:14:25,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 95 transitions, 233 flow [2024-11-24 00:14:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:14:25,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:14:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2024-11-24 00:14:25,763 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8709677419354839 [2024-11-24 00:14:25,764 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 193 flow. Second operand 6 states and 486 transitions. [2024-11-24 00:14:25,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 95 transitions, 233 flow [2024-11-24 00:14:25,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 95 transitions, 233 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:14:25,773 INFO L231 Difference]: Finished difference. Result has 101 places, 89 transitions, 203 flow [2024-11-24 00:14:25,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=101, PETRI_TRANSITIONS=89} [2024-11-24 00:14:25,779 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2024-11-24 00:14:25,779 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 89 transitions, 203 flow [2024-11-24 00:14:25,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2024-11-24 00:14:25,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:14:25,780 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:25,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:14:25,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:14:25,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:25,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1309769509, now seen corresponding path program 1 times [2024-11-24 00:14:25,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:14:25,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514102249] [2024-11-24 00:14:25,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:25,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:26,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:14:26,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:14:26,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514102249] [2024-11-24 00:14:26,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514102249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:14:26,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:14:26,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:14:26,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932994710] [2024-11-24 00:14:26,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:26,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:14:26,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:14:26,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:14:26,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:14:26,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 93 [2024-11-24 00:14:26,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 89 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2024-11-24 00:14:26,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:14:26,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 93 [2024-11-24 00:14:26,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:14:27,049 INFO L124 PetriNetUnfolderBase]: 86/430 cut-off events. [2024-11-24 00:14:27,049 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-24 00:14:27,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 430 events. 86/430 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2012 event pairs, 51 based on Foata normal form. 0/407 useless extension candidates. Maximal degree in co-relation 613. Up to 186 conditions per place. [2024-11-24 00:14:27,053 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 27 selfloop transitions, 22 changer transitions 0/110 dead transitions. [2024-11-24 00:14:27,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 110 transitions, 343 flow [2024-11-24 00:14:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:14:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:14:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 422 transitions. [2024-11-24 00:14:27,057 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7562724014336918 [2024-11-24 00:14:27,057 INFO L175 Difference]: Start difference. First operand has 101 places, 89 transitions, 203 flow. Second operand 6 states and 422 transitions. [2024-11-24 00:14:27,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 110 transitions, 343 flow [2024-11-24 00:14:27,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 110 transitions, 329 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-24 00:14:27,067 INFO L231 Difference]: Finished difference. Result has 102 places, 110 transitions, 339 flow [2024-11-24 00:14:27,067 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=102, PETRI_TRANSITIONS=110} [2024-11-24 00:14:27,068 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 10 predicate places. [2024-11-24 00:14:27,068 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 110 transitions, 339 flow [2024-11-24 00:14:27,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2024-11-24 00:14:27,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:14:27,069 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:27,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:14:27,069 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:14:27,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:27,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1988177405, now seen corresponding path program 1 times [2024-11-24 00:14:27,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:14:27,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355188404] [2024-11-24 00:14:27,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:14:27,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:14:27,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355188404] [2024-11-24 00:14:27,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355188404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:14:27,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:14:27,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:14:27,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050052101] [2024-11-24 00:14:27,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:27,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:14:27,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:14:27,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:14:27,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:14:27,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 93 [2024-11-24 00:14:27,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 110 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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) [2024-11-24 00:14:27,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:14:27,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 93 [2024-11-24 00:14:27,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:14:28,124 INFO L124 PetriNetUnfolderBase]: 106/639 cut-off events. [2024-11-24 00:14:28,124 INFO L125 PetriNetUnfolderBase]: For 143/174 co-relation queries the response was YES. [2024-11-24 00:14:28,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 639 events. 106/639 cut-off events. For 143/174 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3714 event pairs, 12 based on Foata normal form. 4/602 useless extension candidates. Maximal degree in co-relation 1071. Up to 186 conditions per place. [2024-11-24 00:14:28,132 INFO L140 encePairwiseOnDemand]: 79/93 looper letters, 32 selfloop transitions, 47 changer transitions 0/153 dead transitions. [2024-11-24 00:14:28,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 153 transitions, 656 flow [2024-11-24 00:14:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:14:28,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:14:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 493 transitions. [2024-11-24 00:14:28,136 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8835125448028673 [2024-11-24 00:14:28,136 INFO L175 Difference]: Start difference. First operand has 102 places, 110 transitions, 339 flow. Second operand 6 states and 493 transitions. [2024-11-24 00:14:28,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 153 transitions, 656 flow [2024-11-24 00:14:28,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 153 transitions, 656 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:14:28,148 INFO L231 Difference]: Finished difference. Result has 112 places, 152 transitions, 719 flow [2024-11-24 00:14:28,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=719, PETRI_PLACES=112, PETRI_TRANSITIONS=152} [2024-11-24 00:14:28,150 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 20 predicate places. [2024-11-24 00:14:28,150 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 152 transitions, 719 flow [2024-11-24 00:14:28,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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) [2024-11-24 00:14:28,151 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:14:28,151 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:28,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:14:28,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:14:28,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:28,152 INFO L85 PathProgramCache]: Analyzing trace with hash -81050244, now seen corresponding path program 1 times [2024-11-24 00:14:28,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:14:28,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003532922] [2024-11-24 00:14:28,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:28,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:28,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:14:28,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:14:28,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003532922] [2024-11-24 00:14:28,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003532922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:14:28,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:14:28,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:14:28,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849695572] [2024-11-24 00:14:28,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:28,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:14:28,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:14:28,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:14:28,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:14:28,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 93 [2024-11-24 00:14:28,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 152 transitions, 719 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 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) [2024-11-24 00:14:28,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:14:28,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 93 [2024-11-24 00:14:28,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:14:28,939 INFO L124 PetriNetUnfolderBase]: 186/810 cut-off events. [2024-11-24 00:14:28,939 INFO L125 PetriNetUnfolderBase]: For 625/647 co-relation queries the response was YES. [2024-11-24 00:14:28,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2117 conditions, 810 events. 186/810 cut-off events. For 625/647 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4998 event pairs, 38 based on Foata normal form. 0/776 useless extension candidates. Maximal degree in co-relation 1976. Up to 391 conditions per place. [2024-11-24 00:14:28,946 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 83 selfloop transitions, 32 changer transitions 0/179 dead transitions. [2024-11-24 00:14:28,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 179 transitions, 1111 flow [2024-11-24 00:14:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:14:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:14:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 422 transitions. [2024-11-24 00:14:28,948 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7562724014336918 [2024-11-24 00:14:28,948 INFO L175 Difference]: Start difference. First operand has 112 places, 152 transitions, 719 flow. Second operand 6 states and 422 transitions. [2024-11-24 00:14:28,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 179 transitions, 1111 flow [2024-11-24 00:14:28,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 179 transitions, 1093 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-24 00:14:28,964 INFO L231 Difference]: Finished difference. Result has 122 places, 179 transitions, 1023 flow [2024-11-24 00:14:28,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1023, PETRI_PLACES=122, PETRI_TRANSITIONS=179} [2024-11-24 00:14:28,965 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 30 predicate places. [2024-11-24 00:14:28,966 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 179 transitions, 1023 flow [2024-11-24 00:14:28,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 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) [2024-11-24 00:14:28,966 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:14:28,966 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:28,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:14:28,967 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-24 00:14:28,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:28,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1804407275, now seen corresponding path program 1 times [2024-11-24 00:14:28,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:14:28,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837665295] [2024-11-24 00:14:28,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:28,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:29,004 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:14:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:14:29,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:14:29,058 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:14:29,058 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2024-11-24 00:14:29,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-24 00:14:29,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-24 00:14:29,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-24 00:14:29,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-24 00:14:29,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-24 00:14:29,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:14:29,061 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-24 00:14:29,105 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-24 00:14:29,106 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:14:29,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:14:29 BasicIcfg [2024-11-24 00:14:29,111 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:14:29,112 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:14:29,112 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:14:29,113 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:14:29,113 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:14:24" (3/4) ... [2024-11-24 00:14:29,114 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 00:14:29,181 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-11-24 00:14:29,237 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:14:29,241 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:14:29,241 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:14:29,245 INFO L158 Benchmark]: Toolchain (without parser) took 6033.58ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.3MB in the beginning and 132.9MB in the end (delta: -40.6MB). Peak memory consumption was 191.7MB. Max. memory is 16.1GB. [2024-11-24 00:14:29,245 INFO L158 Benchmark]: CDTParser took 2.29ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:14:29,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.11ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 64.8MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:14:29,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.57ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 62.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:14:29,246 INFO L158 Benchmark]: Boogie Preprocessor took 51.49ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 61.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:14:29,246 INFO L158 Benchmark]: RCFGBuilder took 542.66ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 45.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:14:29,247 INFO L158 Benchmark]: TraceAbstraction took 4522.74ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 44.7MB in the beginning and 139.2MB in the end (delta: -94.5MB). Peak memory consumption was 133.0MB. Max. memory is 16.1GB. [2024-11-24 00:14:29,247 INFO L158 Benchmark]: Witness Printer took 131.61ms. Allocated memory is still 352.3MB. Free memory was 139.2MB in the beginning and 132.9MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:14:29,249 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.29ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.11ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 64.8MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.57ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 62.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.49ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 61.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 542.66ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 45.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4522.74ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 44.7MB in the beginning and 139.2MB in the end (delta: -94.5MB). Peak memory consumption was 133.0MB. Max. memory is 16.1GB. * Witness Printer took 131.61ms. Allocated memory is still 352.3MB. Free memory was 139.2MB in the beginning and 132.9MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1021]: Data race detected Data race detected The following path leads to a data race: [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [threads_total=1] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [threads_total=1, tids={-2:0}] [L1028] EXPR, FCALL 0 calloc(threads_total, sizeof(int)) [L1028] 0 int *is = calloc(threads_total, sizeof(int)); VAL [is={-3:0}, threads_total=1, tids={-2:0}] [L1029] 0 int i = 0; VAL [i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1029] COND TRUE 0 i < threads_total VAL [i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1030] 0 pthread_create(&tids[i], ((void *)0), &thread, &is[i]) VAL [i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1030] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, &is[i]) VAL [\old(arg)={-3:0}, i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1031] 0 is[i] = i VAL [\old(arg)={-3:0}, i=0, is={-3:0}, threads_total=1, tids={-2:0}] [L1020] 1 int *p = arg; VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] [L1021] EXPR 1 \read(*p) VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] [L1021] 1 int i = *p; VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] [L1031] 0 is[i] = i VAL [\old(arg)={-3:0}, arg={-3:0}, i=0, is={-3:0}, p={-3:0}, threads_total=1, tids={-2:0}] [L1021] 1 int i = *p; VAL [\old(arg)={-3:0}, arg={-3:0}, p={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: pthread_create(&tids[i], ((void *)0), &thread, &is[i]) [1030] * C: pthread_create(&tids[i], ((void *)0), &thread, &is[i]) [1030] * C: pthread_create(&tids[i], ((void *)0), &thread, &is[i]) [1030] * C: is[i] = i [1031] * C: pthread_create(&tids[i], ((void *)0), &thread, &is[i]) [1030] and C: int i = *p; [1021] - UnprovableResult [Line: 1034]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1030]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1030]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 104 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 363 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 235 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 679 IncrementalHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 23 mSDtfsCounter, 679 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1023occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 475 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-24 00:14:29,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c3b791-a311-401b-9a47-cb4ca277f24e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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(DATA-RACE)