./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:00:04,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:00:04,362 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:00:04,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:00:04,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:00:04,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:00:04,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:00:04,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:00:04,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:00:04,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:00:04,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:00:04,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:00:04,432 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:00:04,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:00:04,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:00:04,435 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:00:04,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:00:04,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:00:04,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:00:04,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:00:04,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:00:04,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:00:04,439 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:00:04,440 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:00:04,440 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:00:04,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:00:04,441 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:00:04,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:00:04,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:00:04,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:00:04,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:04,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:00:04,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:00:04,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:00:04,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:00:04,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:00:04,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:00:04,447 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:00:04,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:00:04,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:00:04,448 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:00:04,449 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_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2023-11-06 23:00:04,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:00:04,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:00:04,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:00:04,868 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:00:04,868 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:00:04,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-06 23:00:08,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:00:08,804 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:00:08,805 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-06 23:00:08,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/data/ad0b4d9fc/5a1baf97864340778a64d501844643e0/FLAGe5e803c19 [2023-11-06 23:00:08,857 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/data/ad0b4d9fc/5a1baf97864340778a64d501844643e0 [2023-11-06 23:00:08,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:00:08,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:00:08,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:08,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:00:08,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:00:08,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:08" (1/1) ... [2023-11-06 23:00:08,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58181636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:08, skipping insertion in model container [2023-11-06 23:00:08,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:08" (1/1) ... [2023-11-06 23:00:08,947 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:00:09,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:09,395 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:00:09,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:09,510 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:00:09,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09 WrapperNode [2023-11-06 23:00:09,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:09,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:09,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:00:09,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:00:09,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,603 INFO L138 Inliner]: procedures = 172, calls = 51, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 295 [2023-11-06 23:00:09,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:09,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:00:09,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:00:09,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:00:09,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:00:09,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:00:09,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:00:09,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:00:09,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (1/1) ... [2023-11-06 23:00:09,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:09,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:00:09,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:00:09,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b935b5-2581-4b37-b9b8-ca348adfad90/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:00:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:00:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-06 23:00:09,868 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-06 23:00:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:00:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:00:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:00:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:00:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-06 23:00:09,869 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-06 23:00:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:00:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:00:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:00:09,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:00:09,873 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:00:10,060 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:00:10,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:00:10,676 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:00:10,689 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:00:10,689 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-06 23:00:10,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:10 BoogieIcfgContainer [2023-11-06 23:00:10,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:00:10,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:00:10,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:00:10,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:00:10,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:00:08" (1/3) ... [2023-11-06 23:00:10,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c242ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:00:10, skipping insertion in model container [2023-11-06 23:00:10,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:09" (2/3) ... [2023-11-06 23:00:10,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c242ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:00:10, skipping insertion in model container [2023-11-06 23:00:10,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:10" (3/3) ... [2023-11-06 23:00:10,708 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2023-11-06 23:00:10,720 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:00:10,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:00:10,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-06 23:00:10,734 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:00:10,915 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 23:00:10,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 315 transitions, 650 flow [2023-11-06 23:00:11,350 INFO L124 PetriNetUnfolderBase]: 61/571 cut-off events. [2023-11-06 23:00:11,351 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 23:00:11,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 571 events. 61/571 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3023 event pairs, 0 based on Foata normal form. 0/481 useless extension candidates. Maximal degree in co-relation 319. Up to 8 conditions per place. [2023-11-06 23:00:11,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 315 transitions, 650 flow [2023-11-06 23:00:11,396 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 315 transitions, 650 flow [2023-11-06 23:00:11,400 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:00:11,425 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 286 places, 315 transitions, 650 flow [2023-11-06 23:00:11,429 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 286 places, 315 transitions, 650 flow [2023-11-06 23:00:11,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 315 transitions, 650 flow [2023-11-06 23:00:11,587 INFO L124 PetriNetUnfolderBase]: 61/571 cut-off events. [2023-11-06 23:00:11,588 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 23:00:11,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 571 events. 61/571 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3023 event pairs, 0 based on Foata normal form. 0/481 useless extension candidates. Maximal degree in co-relation 319. Up to 8 conditions per place. [2023-11-06 23:00:11,651 INFO L119 LiptonReduction]: Number of co-enabled transitions 47174 [2023-11-06 23:00:19,207 INFO L134 LiptonReduction]: Checked pairs total: 187224 [2023-11-06 23:00:19,207 INFO L136 LiptonReduction]: Total number of compositions: 202 [2023-11-06 23:00:19,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:00:19,234 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77f8b3af, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:00:19,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-06 23:00:19,262 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:00:19,265 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2023-11-06 23:00:19,266 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:00:19,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:19,267 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 23:00:19,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-06 23:00:19,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1171213761, now seen corresponding path program 1 times [2023-11-06 23:00:19,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:19,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286633753] [2023-11-06 23:00:19,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:19,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:19,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:00:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:19,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:00:19,641 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:00:19,643 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2023-11-06 23:00:19,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-06 23:00:19,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-06 23:00:19,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-06 23:00:19,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-06 23:00:19,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-06 23:00:19,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-06 23:00:19,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-06 23:00:19,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 24 remaining) [2023-11-06 23:00:19,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-06 23:00:19,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-06 23:00:19,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-06 23:00:19,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-06 23:00:19,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-06 23:00:19,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-11-06 23:00:19,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-11-06 23:00:19,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-06 23:00:19,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-06 23:00:19,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-06 23:00:19,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-06 23:00:19,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-06 23:00:19,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-06 23:00:19,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-06 23:00:19,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-06 23:00:19,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:00:19,661 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-06 23:00:19,680 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 23:00:19,687 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 23:00:19,852 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-06 23:00:19,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 472 places, 527 transitions, 1098 flow [2023-11-06 23:00:20,796 INFO L124 PetriNetUnfolderBase]: 205/1690 cut-off events. [2023-11-06 23:00:20,796 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-06 23:00:20,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1779 conditions, 1690 events. 205/1690 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12143 event pairs, 1 based on Foata normal form. 0/1426 useless extension candidates. Maximal degree in co-relation 1012. Up to 32 conditions per place. [2023-11-06 23:00:20,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 472 places, 527 transitions, 1098 flow [2023-11-06 23:00:20,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 472 places, 527 transitions, 1098 flow [2023-11-06 23:00:20,905 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:00:20,905 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 472 places, 527 transitions, 1098 flow [2023-11-06 23:00:20,905 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 472 places, 527 transitions, 1098 flow [2023-11-06 23:00:20,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 472 places, 527 transitions, 1098 flow [2023-11-06 23:00:21,789 INFO L124 PetriNetUnfolderBase]: 205/1690 cut-off events. [2023-11-06 23:00:21,790 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-06 23:00:21,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1779 conditions, 1690 events. 205/1690 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12143 event pairs, 1 based on Foata normal form. 0/1426 useless extension candidates. Maximal degree in co-relation 1012. Up to 32 conditions per place. [2023-11-06 23:00:22,049 INFO L119 LiptonReduction]: Number of co-enabled transitions 183340 [2023-11-06 23:00:31,349 INFO L134 LiptonReduction]: Checked pairs total: 792676 [2023-11-06 23:00:31,350 INFO L136 LiptonReduction]: Total number of compositions: 326 [2023-11-06 23:00:31,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:00:31,355 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77f8b3af, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:00:31,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-06 23:00:31,368 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:00:31,368 INFO L124 PetriNetUnfolderBase]: 11/93 cut-off events. [2023-11-06 23:00:31,368 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:00:31,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:31,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:31,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-11-06 23:00:31,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:31,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1583028569, now seen corresponding path program 1 times [2023-11-06 23:00:31,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:31,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674969065] [2023-11-06 23:00:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:31,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:31,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:31,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674969065] [2023-11-06 23:00:31,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674969065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:31,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:31,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:00:31,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011387618] [2023-11-06 23:00:31,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:31,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:00:31,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:31,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:00:31,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:00:31,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 853 [2023-11-06 23:00:31,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 274 transitions, 592 flow. Second operand has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 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) [2023-11-06 23:00:31,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:31,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 853 [2023-11-06 23:00:31,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand