./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu --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 c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:23,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:23,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:41:23,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:23,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:23,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:23,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:23,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:23,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:41:23,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:41:23,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:23,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:23,579 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:23,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:23,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:41:23,582 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:41:23,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:23,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:41:23,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:23,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:41:23,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:41:23,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:41:23,585 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:41:23,586 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:41:23,586 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:41:23,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:23,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:23,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:23,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:23,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:41:23,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:23,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:23,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:41:23,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:41:23,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:23,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:41:23,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:41:23,592 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:41:23,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:41:23,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:41:23,593 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:41:23,594 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_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2023-11-19 07:41:23,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:23,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:23,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:23,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:23,973 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:23,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2023-11-19 07:41:27,164 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:27,462 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:27,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2023-11-19 07:41:27,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/data/9ede4acfa/f50b85ce51584d07aaf848587418c7c5/FLAGb32a7e76b [2023-11-19 07:41:27,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/data/9ede4acfa/f50b85ce51584d07aaf848587418c7c5 [2023-11-19 07:41:27,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:27,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:27,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:27,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:27,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:27,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:27,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db53a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27, skipping insertion in model container [2023-11-19 07:41:27,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:27,543 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:27,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:27,867 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:27,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:27,948 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:27,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27 WrapperNode [2023-11-19 07:41:27,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:27,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:27,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:27,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:27,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:27,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,063 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 823 [2023-11-19 07:41:28,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:28,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:28,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:28,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:28,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:28,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:28,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:28,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:28,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (1/1) ... [2023-11-19 07:41:28,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:28,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2db30a4c-a336-4125-bc57-d15f4b97aa0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:41:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:41:28,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:41:28,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:41:28,258 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:41:28,258 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:41:28,258 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:41:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:41:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:41:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:41:28,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:41:28,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:41:28,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:28,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:41:28,264 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:41:28,472 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:28,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:29,840 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:29,860 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:29,860 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 07:41:29,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:29 BoogieIcfgContainer [2023-11-19 07:41:29,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:29,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:41:29,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:41:29,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:41:29,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:27" (1/3) ... [2023-11-19 07:41:29,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d7be05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:29, skipping insertion in model container [2023-11-19 07:41:29,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:27" (2/3) ... [2023-11-19 07:41:29,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d7be05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:29, skipping insertion in model container [2023-11-19 07:41:29,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:29" (3/3) ... [2023-11-19 07:41:29,879 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2023-11-19 07:41:29,888 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:41:29,899 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:41:29,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2023-11-19 07:41:29,900 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:41:30,151 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:41:30,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1037 places, 1075 transitions, 2171 flow [2023-11-19 07:41:30,887 INFO L124 PetriNetUnfolderBase]: 48/1072 cut-off events. [2023-11-19 07:41:30,887 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:41:30,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 1072 events. 48/1072 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2218 event pairs, 0 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-19 07:41:30,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 1037 places, 1075 transitions, 2171 flow [2023-11-19 07:41:30,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1009 places, 1045 transitions, 2108 flow [2023-11-19 07:41:30,958 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:41:30,975 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1009 places, 1045 transitions, 2108 flow [2023-11-19 07:41:30,979 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1009 places, 1045 transitions, 2108 flow [2023-11-19 07:41:30,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1009 places, 1045 transitions, 2108 flow [2023-11-19 07:41:31,477 INFO L124 PetriNetUnfolderBase]: 46/1045 cut-off events. [2023-11-19 07:41:31,477 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:41:31,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 1045 events. 46/1045 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2202 event pairs, 0 based on Foata normal form. 0/883 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-19 07:41:31,566 INFO L119 LiptonReduction]: Number of co-enabled transitions 162486 [2023-11-19 07:42:02,738 INFO L134 LiptonReduction]: Checked pairs total: 1261042 [2023-11-19 07:42:02,738 INFO L136 LiptonReduction]: Total number of compositions: 1063 [2023-11-19 07:42:02,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:42:02,761 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=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;@1e05b125, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:42:02,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2023-11-19 07:42:02,763 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:42:02,763 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:42:02,763 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:42:02,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:02,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:42:02,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-19 07:42:02,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 3844, now seen corresponding path program 1 times [2023-11-19 07:42:02,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:02,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558749236] [2023-11-19 07:42:02,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:02,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:02,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558749236] [2023-11-19 07:42:02,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558749236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:02,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:02,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:42:02,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663819437] [2023-11-19 07:42:02,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:02,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:42:02,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:02,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:42:02,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:42:02,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1039 out of 2138 [2023-11-19 07:42:02,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 319 transitions, 656 flow. Second operand has 2 states, 2 states have (on average 1039.5) internal successors, (2079), 2 states have internal predecessors, (2079), 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) [2023-11-19 07:42:02,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:02,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1039 of 2138 [2023-11-19 07:42:02,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:42:10,402 INFO L124 PetriNetUnfolderBase]: 13371/44031 cut-off events. [2023-11-19 07:42:10,403 INFO L125 PetriNetUnfolderBase]: For 501/501 co-relation queries the response was YES. [2023-11-19 07:42:10,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62950 conditions, 44031 events. 13371/44031 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 1047. Compared 561251 event pairs, 11085 based on Foata normal form. 2329/38019 useless extension candidates. Maximal degree in co-relation 58976. Up to 18432 conditions per place. [2023-11-19 07:42:10,902 INFO L140 encePairwiseOnDemand]: 2078/2138 looper letters, 66 selfloop transitions, 0 changer transitions 1/259 dead transitions. [2023-11-19 07:42:10,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 259 transitions, 670 flow [2023-11-19 07:42:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:42:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:42:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2205 transitions. [2023-11-19 07:42:10,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5156688493919551 [2023-11-19 07:42:10,933 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2205 transitions. [2023-11-19 07:42:10,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2205 transitions. [2023-11-19 07:42:10,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:42:10,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2205 transitions. [2023-11-19 07:42:10,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1102.5) internal successors, (2205), 2 states have internal predecessors, (2205), 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) [2023-11-19 07:42:10,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2138.0) internal successors, (6414), 3 states have internal predecessors, (6414), 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) [2023-11-19 07:42:10,976 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2138.0) internal successors, (6414), 3 states have internal predecessors, (6414), 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) [2023-11-19 07:42:10,978 INFO L175 Difference]: Start difference. First operand has 316 places, 319 transitions, 656 flow. Second operand 2 states and 2205 transitions. [2023-11-19 07:42:10,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 259 transitions, 670 flow [2023-11-19 07:42:11,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 259 transitions, 658 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:42:11,015 INFO L231 Difference]: Finished difference. Result has 252 places, 258 transitions, 521 flow [2023-11-19 07:42:11,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2138, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=521, PETRI_PLACES=252, PETRI_TRANSITIONS=258} [2023-11-19 07:42:11,023 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -64 predicate places. [2023-11-19 07:42:11,023 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 258 transitions, 521 flow [2023-11-19 07:42:11,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1039.5) internal successors, (2079), 2 states have internal predecessors, (2079), 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) [2023-11-19 07:42:11,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:42:11,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:11,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:42:11,026 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-19 07:42:11,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:11,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1947036745, now seen corresponding path program 1 times [2023-11-19 07:42:11,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:11,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099866438] [2023-11-19 07:42:11,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:11,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:11,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:42:11,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:11,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099866438] [2023-11-19 07:42:11,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099866438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:11,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:11,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:42:11,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771706271] [2023-11-19 07:42:11,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:11,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:11,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:11,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:11,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:11,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1026 out of 2138 [2023-11-19 07:42:11,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 258 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 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) [2023-11-19 07:42:11,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:42:11,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1026 of 2138 [2023-11-19 07:42:11,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand