./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 a0165632 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_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/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_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 18:32:06,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:32:06,608 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 18:32:06,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:32:06,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:32:06,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:32:06,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:32:06,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:32:06,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:32:06,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:32:06,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:32:06,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:32:06,656 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:32:06,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:32:06,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:32:06,657 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:32:06,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:32:06,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:32:06,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:32:06,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:32:06,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:32:06,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:32:06,667 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:32:06,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:32:06,667 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:32:06,667 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:32:06,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:32:06,668 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:32:06,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:32:06,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:32:06,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:32:06,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:32:06,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:32:06,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:32:06,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:32:06,685 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:32:06,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:32:06,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:32:06,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:32:06,686 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:32:06,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:32:06,688 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fea91513c96246b75c49fa902e51d33d0640cbe9a02143a9b8a08050c0f0b4f [2024-11-08 18:32:06,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:32:07,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:32:07,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:32:07,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:32:07,014 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:32:07,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i Unable to find full path for "g++" [2024-11-08 18:32:09,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:32:09,590 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:32:09,591 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init-race.i [2024-11-08 18:32:09,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/data/07ca83d6d/38719ce798c94dd6add2896b934c5ff5/FLAGa8423e938 [2024-11-08 18:32:09,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/data/07ca83d6d/38719ce798c94dd6add2896b934c5ff5 [2024-11-08 18:32:09,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:32:09,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:32:09,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:32:09,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:32:09,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:32:09,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:32:09" (1/1) ... [2024-11-08 18:32:09,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698e54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:09, skipping insertion in model container [2024-11-08 18:32:09,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:32:09" (1/1) ... [2024-11-08 18:32:09,731 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:32:10,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:32:10,398 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:32:10,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:32:10,518 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:32:10,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10 WrapperNode [2024-11-08 18:32:10,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:32:10,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:32:10,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:32:10,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:32:10,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,573 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-08 18:32:10,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:32:10,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:32:10,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:32:10,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:32:10,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,624 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:32:10,625 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:32:10,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:32:10,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:32:10,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (1/1) ... [2024-11-08 18:32:10,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:32:10,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:32:10,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:32:10,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:32:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:32:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 18:32:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 18:32:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:32:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-08 18:32:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-08 18:32:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:32:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:32:10,723 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:32:10,901 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:32:10,903 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:32:11,257 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:32:11,257 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:32:11,273 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:32:11,273 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:32:11,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:32:11 BoogieIcfgContainer [2024-11-08 18:32:11,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:32:11,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:32:11,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:32:11,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:32:11,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:32:09" (1/3) ... [2024-11-08 18:32:11,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45484c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:32:11, skipping insertion in model container [2024-11-08 18:32:11,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:32:10" (2/3) ... [2024-11-08 18:32:11,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45484c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:32:11, skipping insertion in model container [2024-11-08 18:32:11,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:32:11" (3/3) ... [2024-11-08 18:32:11,286 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-init-race.i [2024-11-08 18:32:11,301 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:32:11,301 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-08 18:32:11,301 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:32:11,374 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 18:32:11,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 95 transitions, 197 flow [2024-11-08 18:32:11,485 INFO L124 PetriNetUnfolderBase]: 6/129 cut-off events. [2024-11-08 18:32:11,485 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:32:11,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 129 events. 6/129 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-11-08 18:32:11,491 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 95 transitions, 197 flow [2024-11-08 18:32:11,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 95 transitions, 197 flow [2024-11-08 18:32:11,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:32:11,519 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;@747e64db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:32:11,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 18:32:11,550 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:32:11,551 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-11-08 18:32:11,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:32:11,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:32:11,553 INFO L204 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] [2024-11-08 18:32:11,554 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)] === [2024-11-08 18:32:11,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:11,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1735045234, now seen corresponding path program 1 times [2024-11-08 18:32:11,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:32:11,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336996084] [2024-11-08 18:32:11,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:11,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:32:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:12,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:32:12,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:32:12,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336996084] [2024-11-08 18:32:12,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336996084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:12,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:12,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:32:12,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247979857] [2024-11-08 18:32:12,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:12,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:32:12,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:32:12,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:32:12,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:32:12,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 95 [2024-11-08 18:32:12,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 80.6) internal successors, (403), 5 states have internal predecessors, (403), 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) [2024-11-08 18:32:12,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:32:12,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 95 [2024-11-08 18:32:12,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:32:12,543 INFO L124 PetriNetUnfolderBase]: 5/135 cut-off events. [2024-11-08 18:32:12,543 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 18:32:12,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 135 events. 5/135 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 2/130 useless extension candidates. Maximal degree in co-relation 71. Up to 19 conditions per place. [2024-11-08 18:32:12,549 INFO L140 encePairwiseOnDemand]: 85/95 looper letters, 13 selfloop transitions, 2 changer transitions 7/100 dead transitions. [2024-11-08 18:32:12,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 249 flow [2024-11-08 18:32:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:32:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:32:12,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2024-11-08 18:32:12,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8719298245614036 [2024-11-08 18:32:12,572 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 197 flow. Second operand 6 states and 497 transitions. [2024-11-08 18:32:12,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 249 flow [2024-11-08 18:32:12,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 100 transitions, 249 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:32:12,584 INFO L231 Difference]: Finished difference. Result has 103 places, 93 transitions, 213 flow [2024-11-08 18:32:12,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=213, PETRI_PLACES=103, PETRI_TRANSITIONS=93} [2024-11-08 18:32:12,592 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-11-08 18:32:12,592 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 93 transitions, 213 flow [2024-11-08 18:32:12,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.6) internal successors, (403), 5 states have internal predecessors, (403), 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) [2024-11-08 18:32:12,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:32:12,593 INFO L204 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] [2024-11-08 18:32:12,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:32:12,594 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)] === [2024-11-08 18:32:12,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:12,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1110259832, now seen corresponding path program 1 times [2024-11-08 18:32:12,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:32:12,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882042764] [2024-11-08 18:32:12,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:12,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:32:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:32:13,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:32:13,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882042764] [2024-11-08 18:32:13,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882042764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:13,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:13,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:32:13,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894385038] [2024-11-08 18:32:13,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:13,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:32:13,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:32:13,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:32:13,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:32:13,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 95 [2024-11-08 18:32:13,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 93 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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) [2024-11-08 18:32:13,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:32:13,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 95 [2024-11-08 18:32:13,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:32:13,837 INFO L124 PetriNetUnfolderBase]: 97/453 cut-off events. [2024-11-08 18:32:13,838 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-08 18:32:13,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 453 events. 97/453 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2078 event pairs, 51 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 638. Up to 186 conditions per place. [2024-11-08 18:32:13,844 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 27 selfloop transitions, 22 changer transitions 0/114 dead transitions. [2024-11-08 18:32:13,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 114 transitions, 353 flow [2024-11-08 18:32:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:32:13,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:32:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2024-11-08 18:32:13,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7824561403508772 [2024-11-08 18:32:13,851 INFO L175 Difference]: Start difference. First operand has 103 places, 93 transitions, 213 flow. Second operand 6 states and 446 transitions. [2024-11-08 18:32:13,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 114 transitions, 353 flow [2024-11-08 18:32:13,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 114 transitions, 339 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-08 18:32:13,858 INFO L231 Difference]: Finished difference. Result has 104 places, 114 transitions, 349 flow [2024-11-08 18:32:13,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=104, PETRI_TRANSITIONS=114} [2024-11-08 18:32:13,861 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 10 predicate places. [2024-11-08 18:32:13,861 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 114 transitions, 349 flow [2024-11-08 18:32:13,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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) [2024-11-08 18:32:13,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:32:13,862 INFO L204 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] [2024-11-08 18:32:13,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:32:13,863 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 18:32:13,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:13,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1246354436, now seen corresponding path program 1 times [2024-11-08 18:32:13,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:32:13,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413278947] [2024-11-08 18:32:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:13,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:32:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:32:14,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:32:14,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413278947] [2024-11-08 18:32:14,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413278947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:14,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:14,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:32:14,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137551801] [2024-11-08 18:32:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:14,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:32:14,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:32:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:32:14,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:32:14,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2024-11-08 18:32:14,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 114 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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) [2024-11-08 18:32:14,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:32:14,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2024-11-08 18:32:14,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:32:14,746 INFO L124 PetriNetUnfolderBase]: 122/672 cut-off events. [2024-11-08 18:32:14,746 INFO L125 PetriNetUnfolderBase]: For 143/174 co-relation queries the response was YES. [2024-11-08 18:32:14,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 672 events. 122/672 cut-off events. For 143/174 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3830 event pairs, 12 based on Foata normal form. 4/626 useless extension candidates. Maximal degree in co-relation 1106. Up to 186 conditions per place. [2024-11-08 18:32:14,755 INFO L140 encePairwiseOnDemand]: 81/95 looper letters, 32 selfloop transitions, 47 changer transitions 0/157 dead transitions. [2024-11-08 18:32:14,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 157 transitions, 666 flow [2024-11-08 18:32:14,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:32:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:32:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 517 transitions. [2024-11-08 18:32:14,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9070175438596492 [2024-11-08 18:32:14,758 INFO L175 Difference]: Start difference. First operand has 104 places, 114 transitions, 349 flow. Second operand 6 states and 517 transitions. [2024-11-08 18:32:14,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 157 transitions, 666 flow [2024-11-08 18:32:14,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 157 transitions, 666 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:32:14,766 INFO L231 Difference]: Finished difference. Result has 114 places, 156 transitions, 729 flow [2024-11-08 18:32:14,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=729, PETRI_PLACES=114, PETRI_TRANSITIONS=156} [2024-11-08 18:32:14,767 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 20 predicate places. [2024-11-08 18:32:14,767 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 156 transitions, 729 flow [2024-11-08 18:32:14,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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) [2024-11-08 18:32:14,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:32:14,768 INFO L204 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] [2024-11-08 18:32:14,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:32:14,769 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)] === [2024-11-08 18:32:14,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:14,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1646187986, now seen corresponding path program 1 times [2024-11-08 18:32:14,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:32:14,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817641204] [2024-11-08 18:32:14,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:14,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:32:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:32:15,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:32:15,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817641204] [2024-11-08 18:32:15,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817641204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:15,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:15,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:32:15,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547432039] [2024-11-08 18:32:15,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:15,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:32:15,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:32:15,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:32:15,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:32:15,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 95 [2024-11-08 18:32:15,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 156 transitions, 729 flow. Second operand has 6 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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) [2024-11-08 18:32:15,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:32:15,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 95 [2024-11-08 18:32:15,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:32:15,592 INFO L124 PetriNetUnfolderBase]: 200/839 cut-off events. [2024-11-08 18:32:15,593 INFO L125 PetriNetUnfolderBase]: For 639/689 co-relation queries the response was YES. [2024-11-08 18:32:15,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2152 conditions, 839 events. 200/839 cut-off events. For 639/689 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5081 event pairs, 38 based on Foata normal form. 0/796 useless extension candidates. Maximal degree in co-relation 2006. Up to 391 conditions per place. [2024-11-08 18:32:15,601 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 83 selfloop transitions, 32 changer transitions 0/183 dead transitions. [2024-11-08 18:32:15,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 183 transitions, 1121 flow [2024-11-08 18:32:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:32:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:32:15,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2024-11-08 18:32:15,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7824561403508772 [2024-11-08 18:32:15,604 INFO L175 Difference]: Start difference. First operand has 114 places, 156 transitions, 729 flow. Second operand 6 states and 446 transitions. [2024-11-08 18:32:15,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 183 transitions, 1121 flow [2024-11-08 18:32:15,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 183 transitions, 1103 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-08 18:32:15,619 INFO L231 Difference]: Finished difference. Result has 124 places, 183 transitions, 1033 flow [2024-11-08 18:32:15,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1033, PETRI_PLACES=124, PETRI_TRANSITIONS=183} [2024-11-08 18:32:15,621 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 30 predicate places. [2024-11-08 18:32:15,621 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 183 transitions, 1033 flow [2024-11-08 18:32:15,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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) [2024-11-08 18:32:15,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:32:15,622 INFO L204 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, 1] [2024-11-08 18:32:15,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:32:15,622 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 18:32:15,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:15,623 INFO L85 PathProgramCache]: Analyzing trace with hash -758867797, now seen corresponding path program 1 times [2024-11-08 18:32:15,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:32:15,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130896699] [2024-11-08 18:32:15,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:15,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:32:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:32:15,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:32:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:32:15,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:32:15,706 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:32:15,707 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2024-11-08 18:32:15,709 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-08 18:32:15,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-08 18:32:15,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-08 18:32:15,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-08 18:32:15,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-08 18:32:15,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:32:15,711 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 18:32:15,764 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:32:15,764 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:32:15,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:32:15 BasicIcfg [2024-11-08 18:32:15,773 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:32:15,774 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:32:15,774 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:32:15,774 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:32:15,775 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:32:11" (3/4) ... [2024-11-08 18:32:15,777 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 18:32:15,840 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:32:15,841 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:32:15,842 INFO L158 Benchmark]: Toolchain (without parser) took 6199.15ms. Allocated memory was 146.8MB in the beginning and 222.3MB in the end (delta: 75.5MB). Free memory was 106.7MB in the beginning and 74.2MB in the end (delta: 32.5MB). Peak memory consumption was 110.8MB. Max. memory is 16.1GB. [2024-11-08 18:32:15,842 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 146.8MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:32:15,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 873.33ms. Allocated memory is still 146.8MB. Free memory was 106.4MB in the beginning and 75.6MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-08 18:32:15,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.27ms. Allocated memory is still 146.8MB. Free memory was 75.6MB in the beginning and 73.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:32:15,848 INFO L158 Benchmark]: Boogie Preprocessor took 49.59ms. Allocated memory is still 146.8MB. Free memory was 73.1MB in the beginning and 71.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:32:15,848 INFO L158 Benchmark]: RCFGBuilder took 648.73ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 71.1MB in the beginning and 152.3MB in the end (delta: -81.2MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2024-11-08 18:32:15,849 INFO L158 Benchmark]: TraceAbstraction took 4494.50ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 151.3MB in the beginning and 78.4MB in the end (delta: 72.9MB). Peak memory consumption was 110.6MB. Max. memory is 16.1GB. [2024-11-08 18:32:15,849 INFO L158 Benchmark]: Witness Printer took 67.03ms. Allocated memory is still 222.3MB. Free memory was 78.4MB in the beginning and 74.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:32:15,856 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 146.8MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 873.33ms. Allocated memory is still 146.8MB. Free memory was 106.4MB in the beginning and 75.6MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.27ms. Allocated memory is still 146.8MB. Free memory was 75.6MB in the beginning and 73.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.59ms. Allocated memory is still 146.8MB. Free memory was 73.1MB in the beginning and 71.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 648.73ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 71.1MB in the beginning and 152.3MB in the end (delta: -81.2MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4494.50ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 151.3MB in the beginning and 78.4MB in the end (delta: 72.9MB). Peak memory consumption was 110.6MB. Max. memory is 16.1GB. * Witness Printer took 67.03ms. Allocated memory is still 222.3MB. Free memory was 78.4MB in the beginning and 74.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 FALSE 0 !(i < threads_total) 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: is[i] = i [1031] * 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] 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, 106 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: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 412 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 257 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 695 IncrementalHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 8 mSDtfsCounter, 695 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=1033occurred 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, 1.9s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 479 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-08 18:32:15,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce28ffdd-320b-4e47-8a61-98b1c14c5e99/bin/uautomizer-verify-jihMAELWvX/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