./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.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_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/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_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/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_bfed2009-b506-4704-9a37-59c7ec97e076/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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:11,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:11,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:55:11,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:11,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:11,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:11,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:11,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:11,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:11,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:11,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:11,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:11,431 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:11,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:11,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:11,434 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:11,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:11,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:11,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:11,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:11,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:11,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:11,438 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:55:11,439 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:11,440 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:11,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:11,441 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:11,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:11,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:11,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:11,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:11,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:11,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:11,452 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:11,452 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:11,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:11,463 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:11,464 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:11,464 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:11,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:11,465 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:11,466 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_bfed2009-b506-4704-9a37-59c7ec97e076/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2023-11-19 07:55:11,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:11,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:11,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:11,816 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:11,818 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:11,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-19 07:55:14,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:15,294 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:15,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-19 07:55:15,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/data/326d2e7a3/3cab3481e5fa4a5cb1cc72c97d79420c/FLAGb02f01127 [2023-11-19 07:55:15,331 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/data/326d2e7a3/3cab3481e5fa4a5cb1cc72c97d79420c [2023-11-19 07:55:15,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:15,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:15,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:15,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:15,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:15,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:15,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429c46ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15, skipping insertion in model container [2023-11-19 07:55:15,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:15,403 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:15,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:15,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:15,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:15,798 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:15,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15 WrapperNode [2023-11-19 07:55:15,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:15,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:15,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:15,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:15,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:15,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:15,926 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 827 [2023-11-19 07:55:15,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:15,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:15,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:15,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:15,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:15,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:15,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:15,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:16,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:16,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:16,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:16,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:16,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:16,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:16,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:16,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:16,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (1/1) ... [2023-11-19 07:55:16,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:16,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:16,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:16,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfed2009-b506-4704-9a37-59c7ec97e076/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:55:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:55:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:55:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:55:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:55:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:55:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:55:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:55:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:55:16,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:16,192 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 07:55:16,394 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:16,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:17,728 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:17,773 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:17,773 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 07:55:17,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:17 BoogieIcfgContainer [2023-11-19 07:55:17,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:17,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:17,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:17,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:17,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:15" (1/3) ... [2023-11-19 07:55:17,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7924d0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:17, skipping insertion in model container [2023-11-19 07:55:17,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:15" (2/3) ... [2023-11-19 07:55:17,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7924d0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:17, skipping insertion in model container [2023-11-19 07:55:17,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:17" (3/3) ... [2023-11-19 07:55:17,801 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-11-19 07:55:17,811 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:55:17,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:17,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2023-11-19 07:55:17,824 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:55:18,061 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:55:18,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1081 transitions, 2183 flow [2023-11-19 07:55:18,764 INFO L124 PetriNetUnfolderBase]: 48/1078 cut-off events. [2023-11-19 07:55:18,764 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:55:18,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 1078 events. 48/1078 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2239 event pairs, 0 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-19 07:55:18,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1081 transitions, 2183 flow [2023-11-19 07:55:18,814 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1014 places, 1049 transitions, 2116 flow [2023-11-19 07:55:18,817 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:55:18,836 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1014 places, 1049 transitions, 2116 flow [2023-11-19 07:55:18,841 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1014 places, 1049 transitions, 2116 flow [2023-11-19 07:55:18,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1014 places, 1049 transitions, 2116 flow [2023-11-19 07:55:19,322 INFO L124 PetriNetUnfolderBase]: 45/1049 cut-off events. [2023-11-19 07:55:19,323 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:55:19,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 1049 events. 45/1049 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2191 event pairs, 0 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-19 07:55:19,408 INFO L119 LiptonReduction]: Number of co-enabled transitions 162486 [2023-11-19 07:55:51,132 INFO L134 LiptonReduction]: Checked pairs total: 1096469 [2023-11-19 07:55:51,133 INFO L136 LiptonReduction]: Total number of compositions: 1053 [2023-11-19 07:55:51,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:51,156 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;@1f2f3459, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:51,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2023-11-19 07:55:51,158 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:55:51,159 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:55:51,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:51,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:51,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:55:51,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-19 07:55:51,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:51,165 INFO L85 PathProgramCache]: Analyzing trace with hash 3855, now seen corresponding path program 1 times [2023-11-19 07:55:51,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:51,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469666650] [2023-11-19 07:55:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:51,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:51,309 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 07:55:51,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:51,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469666650] [2023-11-19 07:55:51,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469666650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:51,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:51,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:55:51,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618056829] [2023-11-19 07:55:51,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:51,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:51,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:51,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:51,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:51,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1045 out of 2134 [2023-11-19 07:55:51,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 321 transitions, 660 flow. Second operand has 2 states, 2 states have (on average 1045.5) internal successors, (2091), 2 states have internal predecessors, (2091), 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 07:55:51,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:51,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1045 of 2134 [2023-11-19 07:55:51,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:57,932 INFO L124 PetriNetUnfolderBase]: 12275/40706 cut-off events. [2023-11-19 07:55:57,932 INFO L125 PetriNetUnfolderBase]: For 587/587 co-relation queries the response was YES. [2023-11-19 07:55:58,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58085 conditions, 40706 events. 12275/40706 cut-off events. For 587/587 co-relation queries the response was YES. Maximal size of possible extension queue 978. Compared 516604 event pairs, 10109 based on Foata normal form. 2416/35161 useless extension candidates. Maximal degree in co-relation 54111. Up to 16916 conditions per place. [2023-11-19 07:55:58,410 INFO L140 encePairwiseOnDemand]: 2072/2134 looper letters, 65 selfloop transitions, 0 changer transitions 1/259 dead transitions. [2023-11-19 07:55:58,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 259 transitions, 668 flow [2023-11-19 07:55:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:55:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2218 transitions. [2023-11-19 07:55:58,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5196813495782568 [2023-11-19 07:55:58,440 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2218 transitions. [2023-11-19 07:55:58,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2218 transitions. [2023-11-19 07:55:58,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:58,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2218 transitions. [2023-11-19 07:55:58,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1109.0) internal successors, (2218), 2 states have internal predecessors, (2218), 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 07:55:58,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2134.0) internal successors, (6402), 3 states have internal predecessors, (6402), 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 07:55:58,486 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2134.0) internal successors, (6402), 3 states have internal predecessors, (6402), 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 07:55:58,488 INFO L175 Difference]: Start difference. First operand has 318 places, 321 transitions, 660 flow. Second operand 2 states and 2218 transitions. [2023-11-19 07:55:58,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 259 transitions, 668 flow [2023-11-19 07:55:58,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 259 transitions, 656 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:55:58,539 INFO L231 Difference]: Finished difference. Result has 252 places, 258 transitions, 521 flow [2023-11-19 07:55:58,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2134, 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 07:55:58,546 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -66 predicate places. [2023-11-19 07:55:58,546 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 258 transitions, 521 flow [2023-11-19 07:55:58,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1045.5) internal successors, (2091), 2 states have internal predecessors, (2091), 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 07:55:58,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:58,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:58,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:55:58,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-19 07:55:58,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:58,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1470322744, now seen corresponding path program 1 times [2023-11-19 07:55:58,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:58,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983056112] [2023-11-19 07:55:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:58,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:58,834 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 07:55:58,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:58,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983056112] [2023-11-19 07:55:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983056112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:58,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:58,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174477832] [2023-11-19 07:55:58,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:58,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:58,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:58,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:58,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:58,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1032 out of 2134 [2023-11-19 07:55:58,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 258 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 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 07:55:58,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:58,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1032 of 2134 [2023-11-19 07:55:58,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand