./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c --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_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/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_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/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_206d3102-14fb-481f-94ec-c7b9d493cd98/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 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:15:05,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:15:05,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:15:05,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:15:05,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:15:05,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:15:05,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:15:05,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:15:05,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:15:05,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:15:05,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:15:05,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:15:05,659 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:15:05,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:15:05,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:15:05,661 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:15:05,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:15:05,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:15:05,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:15:05,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:15:05,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:15:05,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:15:05,664 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:15:05,665 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:15:05,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:15:05,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:15:05,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:15:05,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:15:05,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:15:05,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:15:05,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:15:05,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:15:05,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:15:05,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:15:05,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:15:05,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:15:05,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:15:05,688 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:15:05,689 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:15:05,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:15:05,689 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:15:05,692 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_206d3102-14fb-481f-94ec-c7b9d493cd98/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 238e609d3671ff2de494998b0abc6a14651375b5eb423e7b66fc3d987b466268 [2023-11-06 21:15:06,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:15:06,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:15:06,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:15:06,045 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:15:06,046 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:15:06,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2023-11-06 21:15:09,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:15:09,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:15:09,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/sv-benchmarks/c/weaver/popl20-send-receive.wvr.c [2023-11-06 21:15:09,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/data/1ce1f1fc9/04507c6b1f914af4bb0067b258aaa315/FLAG9691715b4 [2023-11-06 21:15:09,445 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/data/1ce1f1fc9/04507c6b1f914af4bb0067b258aaa315 [2023-11-06 21:15:09,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:15:09,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:15:09,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:15:09,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:15:09,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:15:09,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358ef881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09, skipping insertion in model container [2023-11-06 21:15:09,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,493 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:15:09,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:15:09,697 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:15:09,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:15:09,753 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:15:09,754 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:15:09,761 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:15:09,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09 WrapperNode [2023-11-06 21:15:09,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:15:09,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:15:09,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:15:09,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:15:09,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,827 INFO L138 Inliner]: procedures = 25, calls = 53, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 299 [2023-11-06 21:15:09,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:15:09,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:15:09,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:15:09,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:15:09,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:15:09,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:15:09,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:15:09,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:15:09,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (1/1) ... [2023-11-06 21:15:09,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:15:09,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:15:09,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:15:09,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:15:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:15:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:15:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:15:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:15:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:15:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:15:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:15:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:15:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 21:15:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 21:15:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:15:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:15:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:15:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:15:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:15:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:15:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:15:09,956 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 21:15:10,122 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:15:10,124 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:15:10,672 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:15:11,208 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:15:11,209 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 21:15:11,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:15:11 BoogieIcfgContainer [2023-11-06 21:15:11,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:15:11,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:15:11,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:15:11,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:15:11,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:15:09" (1/3) ... [2023-11-06 21:15:11,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c443fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:15:11, skipping insertion in model container [2023-11-06 21:15:11,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:09" (2/3) ... [2023-11-06 21:15:11,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c443fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:15:11, skipping insertion in model container [2023-11-06 21:15:11,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:15:11" (3/3) ... [2023-11-06 21:15:11,230 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2023-11-06 21:15:11,240 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:15:11,252 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:15:11,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2023-11-06 21:15:11,252 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:15:11,388 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 21:15:11,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 244 transitions, 509 flow [2023-11-06 21:15:11,635 INFO L124 PetriNetUnfolderBase]: 11/241 cut-off events. [2023-11-06 21:15:11,635 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:15:11,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 241 events. 11/241 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 328 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 195. Up to 2 conditions per place. [2023-11-06 21:15:11,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 244 transitions, 509 flow [2023-11-06 21:15:11,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 225 transitions, 465 flow [2023-11-06 21:15:11,659 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:15:11,684 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 225 transitions, 465 flow [2023-11-06 21:15:11,687 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 225 transitions, 465 flow [2023-11-06 21:15:11,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 225 transitions, 465 flow [2023-11-06 21:15:11,761 INFO L124 PetriNetUnfolderBase]: 11/225 cut-off events. [2023-11-06 21:15:11,762 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:15:11,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 225 events. 11/225 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 326 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 195. Up to 2 conditions per place. [2023-11-06 21:15:11,771 INFO L119 LiptonReduction]: Number of co-enabled transitions 6400 [2023-11-06 21:15:22,321 INFO L134 LiptonReduction]: Checked pairs total: 25667 [2023-11-06 21:15:22,321 INFO L136 LiptonReduction]: Total number of compositions: 234 [2023-11-06 21:15:22,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:15:22,349 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;@111f5657, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:15:22,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2023-11-06 21:15:22,351 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:15:22,352 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:15:22,352 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:15:22,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:22,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:15:22,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 74 more)] === [2023-11-06 21:15:22,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:22,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1255, now seen corresponding path program 1 times [2023-11-06 21:15:22,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:22,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398363720] [2023-11-06 21:15:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:22,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:22,507 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 21:15:22,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:22,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398363720] [2023-11-06 21:15:22,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398363720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:22,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:22,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:15:22,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756576587] [2023-11-06 21:15:22,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:22,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:15:22,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:22,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:15:22,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:15:22,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 478 [2023-11-06 21:15:22,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 175 flow. Second operand has 2 states, 2 states have (on average 194.5) internal successors, (389), 2 states have internal predecessors, (389), 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 21:15:22,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:22,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 478 [2023-11-06 21:15:22,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:22,858 INFO L124 PetriNetUnfolderBase]: 390/978 cut-off events. [2023-11-06 21:15:22,858 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-06 21:15:22,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1665 conditions, 978 events. 390/978 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5892 event pairs, 317 based on Foata normal form. 0/817 useless extension candidates. Maximal degree in co-relation 1412. Up to 601 conditions per place. [2023-11-06 21:15:22,872 INFO L140 encePairwiseOnDemand]: 439/478 looper letters, 23 selfloop transitions, 0 changer transitions 2/41 dead transitions. [2023-11-06 21:15:22,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 147 flow [2023-11-06 21:15:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:15:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:15:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 452 transitions. [2023-11-06 21:15:22,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47280334728033474 [2023-11-06 21:15:22,893 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 452 transitions. [2023-11-06 21:15:22,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 452 transitions. [2023-11-06 21:15:22,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:22,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 452 transitions. [2023-11-06 21:15:22,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 226.0) internal successors, (452), 2 states have internal predecessors, (452), 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 21:15:22,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 478.0) internal successors, (1434), 3 states have internal predecessors, (1434), 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 21:15:22,915 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 478.0) internal successors, (1434), 3 states have internal predecessors, (1434), 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 21:15:22,917 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 175 flow. Second operand 2 states and 452 transitions. [2023-11-06 21:15:22,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 147 flow [2023-11-06 21:15:22,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 41 transitions, 138 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:15:22,927 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 83 flow [2023-11-06 21:15:22,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=83, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2023-11-06 21:15:22,934 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -42 predicate places. [2023-11-06 21:15:22,935 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 83 flow [2023-11-06 21:15:22,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 194.5) internal successors, (389), 2 states have internal predecessors, (389), 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 21:15:22,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:22,936 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:22,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:15:22,937 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 74 more)] === [2023-11-06 21:15:22,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:22,938 INFO L85 PathProgramCache]: Analyzing trace with hash -62234439, now seen corresponding path program 1 times [2023-11-06 21:15:22,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:22,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674946917] [2023-11-06 21:15:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:22,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:23,105 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 21:15:23,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:23,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674946917] [2023-11-06 21:15:23,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674946917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:23,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:23,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:15:23,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655864886] [2023-11-06 21:15:23,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:23,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:15:23,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:23,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:15:23,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:15:23,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 478 [2023-11-06 21:15:23,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 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 21:15:23,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:23,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 478 [2023-11-06 21:15:23,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:23,425 INFO L124 PetriNetUnfolderBase]: 656/1316 cut-off events. [2023-11-06 21:15:23,426 INFO L125 PetriNetUnfolderBase]: For 26/64 co-relation queries the response was YES. [2023-11-06 21:15:23,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2424 conditions, 1316 events. 656/1316 cut-off events. For 26/64 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7012 event pairs, 157 based on Foata normal form. 8/1133 useless extension candidates. Maximal degree in co-relation 2421. Up to 704 conditions per place. [2023-11-06 21:15:23,440 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 38 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2023-11-06 21:15:23,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 53 transitions, 197 flow [2023-11-06 21:15:23,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:15:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:15:23,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2023-11-06 21:15:23,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4211994421199442 [2023-11-06 21:15:23,446 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 604 transitions. [2023-11-06 21:15:23,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 604 transitions. [2023-11-06 21:15:23,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:23,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 604 transitions. [2023-11-06 21:15:23,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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 21:15:23,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 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 21:15:23,458 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 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 21:15:23,458 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 83 flow. Second operand 3 states and 604 transitions. [2023-11-06 21:15:23,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 53 transitions, 197 flow [2023-11-06 21:15:23,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 53 transitions, 197 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:15:23,461 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 96 flow [2023-11-06 21:15:23,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2023-11-06 21:15:23,463 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -43 predicate places. [2023-11-06 21:15:23,463 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 96 flow [2023-11-06 21:15:23,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 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 21:15:23,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:23,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:23,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:15:23,465 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 74 more)] === [2023-11-06 21:15:23,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash 618980863, now seen corresponding path program 1 times [2023-11-06 21:15:23,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:23,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708245687] [2023-11-06 21:15:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:23,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:23,615 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 21:15:23,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:23,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708245687] [2023-11-06 21:15:23,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708245687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:23,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:23,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:15:23,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140662446] [2023-11-06 21:15:23,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:23,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:15:23,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:23,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:15:23,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:15:23,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 478 [2023-11-06 21:15:23,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 21:15:23,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:23,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 478 [2023-11-06 21:15:23,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:23,978 INFO L124 PetriNetUnfolderBase]: 602/1342 cut-off events. [2023-11-06 21:15:23,978 INFO L125 PetriNetUnfolderBase]: For 150/150 co-relation queries the response was YES. [2023-11-06 21:15:23,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2569 conditions, 1342 events. 602/1342 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7888 event pairs, 443 based on Foata normal form. 0/1250 useless extension candidates. Maximal degree in co-relation 2565. Up to 922 conditions per place. [2023-11-06 21:15:23,992 INFO L140 encePairwiseOnDemand]: 476/478 looper letters, 25 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-11-06 21:15:23,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 146 flow [2023-11-06 21:15:23,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:15:23,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:15:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-11-06 21:15:23,996 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4086471408647141 [2023-11-06 21:15:23,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-11-06 21:15:23,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-11-06 21:15:23,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:23,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-11-06 21:15:24,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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 21:15:24,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 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 21:15:24,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 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 21:15:24,008 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 96 flow. Second operand 3 states and 586 transitions. [2023-11-06 21:15:24,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 146 flow [2023-11-06 21:15:24,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 38 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:15:24,011 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 93 flow [2023-11-06 21:15:24,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2023-11-06 21:15:24,013 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -43 predicate places. [2023-11-06 21:15:24,014 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 93 flow [2023-11-06 21:15:24,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 21:15:24,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:24,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:24,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:15:24,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 74 more)] === [2023-11-06 21:15:24,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:24,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1621739851, now seen corresponding path program 1 times [2023-11-06 21:15:24,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:24,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568298973] [2023-11-06 21:15:24,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:24,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:24,661 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 21:15:24,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:24,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568298973] [2023-11-06 21:15:24,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568298973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:24,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:24,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:15:24,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996216983] [2023-11-06 21:15:24,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:24,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:15:24,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:24,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:15:24,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:15:24,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 478 [2023-11-06 21:15:24,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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 21:15:24,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:24,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 478 [2023-11-06 21:15:24,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:25,568 INFO L124 PetriNetUnfolderBase]: 1328/2081 cut-off events. [2023-11-06 21:15:25,569 INFO L125 PetriNetUnfolderBase]: For 287/287 co-relation queries the response was YES. [2023-11-06 21:15:25,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4428 conditions, 2081 events. 1328/2081 cut-off events. For 287/287 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 9048 event pairs, 196 based on Foata normal form. 0/2049 useless extension candidates. Maximal degree in co-relation 4423. Up to 656 conditions per place. [2023-11-06 21:15:25,588 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 81 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2023-11-06 21:15:25,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 93 transitions, 413 flow [2023-11-06 21:15:25,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:15:25,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:15:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1156 transitions. [2023-11-06 21:15:25,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.403068340306834 [2023-11-06 21:15:25,596 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1156 transitions. [2023-11-06 21:15:25,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1156 transitions. [2023-11-06 21:15:25,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:25,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1156 transitions. [2023-11-06 21:15:25,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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 21:15:25,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 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 21:15:25,613 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 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 21:15:25,614 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 93 flow. Second operand 6 states and 1156 transitions. [2023-11-06 21:15:25,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 93 transitions, 413 flow [2023-11-06 21:15:25,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 93 transitions, 412 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:15:25,621 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 98 flow [2023-11-06 21:15:25,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2023-11-06 21:15:25,623 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -40 predicate places. [2023-11-06 21:15:25,623 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 98 flow [2023-11-06 21:15:25,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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 21:15:25,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:25,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:25,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:15:25,626 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 74 more)] === [2023-11-06 21:15:25,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1091232418, now seen corresponding path program 1 times [2023-11-06 21:15:25,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:25,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585155206] [2023-11-06 21:15:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:25,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:25,787 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 21:15:25,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:25,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585155206] [2023-11-06 21:15:25,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585155206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:25,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:25,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:15:25,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955820528] [2023-11-06 21:15:25,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:25,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:15:25,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:25,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:15:25,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:15:25,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 478 [2023-11-06 21:15:25,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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 21:15:25,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:25,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 478 [2023-11-06 21:15:25,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:26,061 INFO L124 PetriNetUnfolderBase]: 464/828 cut-off events. [2023-11-06 21:15:26,062 INFO L125 PetriNetUnfolderBase]: For 163/245 co-relation queries the response was YES. [2023-11-06 21:15:26,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1893 conditions, 828 events. 464/828 cut-off events. For 163/245 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3511 event pairs, 18 based on Foata normal form. 88/895 useless extension candidates. Maximal degree in co-relation 1888. Up to 274 conditions per place. [2023-11-06 21:15:26,070 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 58 selfloop transitions, 5 changer transitions 0/75 dead transitions. [2023-11-06 21:15:26,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 75 transitions, 333 flow [2023-11-06 21:15:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:15:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 21:15:26,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1014 transitions. [2023-11-06 21:15:26,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42426778242677826 [2023-11-06 21:15:26,076 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1014 transitions. [2023-11-06 21:15:26,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1014 transitions. [2023-11-06 21:15:26,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:26,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1014 transitions. [2023-11-06 21:15:26,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 202.8) internal successors, (1014), 5 states have internal predecessors, (1014), 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 21:15:26,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 478.0) internal successors, (2868), 6 states have internal predecessors, (2868), 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 21:15:26,089 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 478.0) internal successors, (2868), 6 states have internal predecessors, (2868), 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 21:15:26,089 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 98 flow. Second operand 5 states and 1014 transitions. [2023-11-06 21:15:26,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 75 transitions, 333 flow [2023-11-06 21:15:26,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 75 transitions, 320 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 21:15:26,094 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 122 flow [2023-11-06 21:15:26,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2023-11-06 21:15:26,097 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -37 predicate places. [2023-11-06 21:15:26,097 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 122 flow [2023-11-06 21:15:26,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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 21:15:26,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:15:26,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:15:26,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:15:26,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 74 more)] === [2023-11-06 21:15:26,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:26,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1071076803, now seen corresponding path program 1 times [2023-11-06 21:15:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:15:26,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135143798] [2023-11-06 21:15:26,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:15:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:15:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:26,484 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 21:15:26,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:15:26,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135143798] [2023-11-06 21:15:26,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135143798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:15:26,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:15:26,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:15:26,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119625424] [2023-11-06 21:15:26,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:15:26,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:15:26,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:15:26,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:15:26,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:15:26,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 478 [2023-11-06 21:15:26,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 122 flow. Second operand has 6 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 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 21:15:26,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:15:26,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 478 [2023-11-06 21:15:26,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:15:26,998 INFO L124 PetriNetUnfolderBase]: 508/948 cut-off events. [2023-11-06 21:15:26,998 INFO L125 PetriNetUnfolderBase]: For 398/431 co-relation queries the response was YES. [2023-11-06 21:15:27,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2367 conditions, 948 events. 508/948 cut-off events. For 398/431 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4376 event pairs, 283 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 2359. Up to 707 conditions per place. [2023-11-06 21:15:27,002 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2023-11-06 21:15:27,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 71 transitions, 336 flow [2023-11-06 21:15:27,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:15:27,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:15:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1136 transitions. [2023-11-06 21:15:27,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39609483960948394 [2023-11-06 21:15:27,008 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1136 transitions. [2023-11-06 21:15:27,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1136 transitions. [2023-11-06 21:15:27,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:15:27,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1136 transitions. [2023-11-06 21:15:27,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 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 21:15:27,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 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 21:15:27,021 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 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 21:15:27,021 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 122 flow. Second operand 6 states and 1136 transitions. [2023-11-06 21:15:27,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 71 transitions, 336 flow [2023-11-06 21:15:27,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 71 transitions, 333 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:15:27,025 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2023-11-06 21:15:27,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2023-11-06 21:15:27,028 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -34 predicate places. [2023-11-06 21:15:27,028 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2023-11-06 21:15:27,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 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 21:15:27,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (77 of 78 remaining) [2023-11-06 21:15:27,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (76 of 78 remaining) [2023-11-06 21:15:27,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (75 of 78 remaining) [2023-11-06 21:15:27,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (74 of 78 remaining) [2023-11-06 21:15:27,032 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (73 of 78 remaining) [2023-11-06 21:15:27,033 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (72 of 78 remaining) [2023-11-06 21:15:27,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (71 of 78 remaining) [2023-11-06 21:15:27,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (70 of 78 remaining) [2023-11-06 21:15:27,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (69 of 78 remaining) [2023-11-06 21:15:27,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (68 of 78 remaining) [2023-11-06 21:15:27,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (67 of 78 remaining) [2023-11-06 21:15:27,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (66 of 78 remaining) [2023-11-06 21:15:27,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (65 of 78 remaining) [2023-11-06 21:15:27,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (64 of 78 remaining) [2023-11-06 21:15:27,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (63 of 78 remaining) [2023-11-06 21:15:27,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (62 of 78 remaining) [2023-11-06 21:15:27,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (61 of 78 remaining) [2023-11-06 21:15:27,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (60 of 78 remaining) [2023-11-06 21:15:27,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (59 of 78 remaining) [2023-11-06 21:15:27,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (58 of 78 remaining) [2023-11-06 21:15:27,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (57 of 78 remaining) [2023-11-06 21:15:27,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (56 of 78 remaining) [2023-11-06 21:15:27,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (55 of 78 remaining) [2023-11-06 21:15:27,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (54 of 78 remaining) [2023-11-06 21:15:27,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (53 of 78 remaining) [2023-11-06 21:15:27,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (52 of 78 remaining) [2023-11-06 21:15:27,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (51 of 78 remaining) [2023-11-06 21:15:27,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (50 of 78 remaining) [2023-11-06 21:15:27,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (49 of 78 remaining) [2023-11-06 21:15:27,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (48 of 78 remaining) [2023-11-06 21:15:27,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (47 of 78 remaining) [2023-11-06 21:15:27,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (46 of 78 remaining) [2023-11-06 21:15:27,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 78 remaining) [2023-11-06 21:15:27,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 78 remaining) [2023-11-06 21:15:27,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 78 remaining) [2023-11-06 21:15:27,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 78 remaining) [2023-11-06 21:15:27,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (41 of 78 remaining) [2023-11-06 21:15:27,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (40 of 78 remaining) [2023-11-06 21:15:27,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (39 of 78 remaining) [2023-11-06 21:15:27,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (38 of 78 remaining) [2023-11-06 21:15:27,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (37 of 78 remaining) [2023-11-06 21:15:27,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (36 of 78 remaining) [2023-11-06 21:15:27,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (35 of 78 remaining) [2023-11-06 21:15:27,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 78 remaining) [2023-11-06 21:15:27,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 78 remaining) [2023-11-06 21:15:27,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 78 remaining) [2023-11-06 21:15:27,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (31 of 78 remaining) [2023-11-06 21:15:27,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (30 of 78 remaining) [2023-11-06 21:15:27,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (29 of 78 remaining) [2023-11-06 21:15:27,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (28 of 78 remaining) [2023-11-06 21:15:27,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (27 of 78 remaining) [2023-11-06 21:15:27,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (26 of 78 remaining) [2023-11-06 21:15:27,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (25 of 78 remaining) [2023-11-06 21:15:27,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (24 of 78 remaining) [2023-11-06 21:15:27,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (23 of 78 remaining) [2023-11-06 21:15:27,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (22 of 78 remaining) [2023-11-06 21:15:27,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (21 of 78 remaining) [2023-11-06 21:15:27,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (20 of 78 remaining) [2023-11-06 21:15:27,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (19 of 78 remaining) [2023-11-06 21:15:27,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (18 of 78 remaining) [2023-11-06 21:15:27,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 78 remaining) [2023-11-06 21:15:27,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 78 remaining) [2023-11-06 21:15:27,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 78 remaining) [2023-11-06 21:15:27,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 78 remaining) [2023-11-06 21:15:27,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 78 remaining) [2023-11-06 21:15:27,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 78 remaining) [2023-11-06 21:15:27,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 78 remaining) [2023-11-06 21:15:27,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (10 of 78 remaining) [2023-11-06 21:15:27,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (9 of 78 remaining) [2023-11-06 21:15:27,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (8 of 78 remaining) [2023-11-06 21:15:27,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (7 of 78 remaining) [2023-11-06 21:15:27,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (6 of 78 remaining) [2023-11-06 21:15:27,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (5 of 78 remaining) [2023-11-06 21:15:27,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (4 of 78 remaining) [2023-11-06 21:15:27,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (3 of 78 remaining) [2023-11-06 21:15:27,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (2 of 78 remaining) [2023-11-06 21:15:27,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (1 of 78 remaining) [2023-11-06 21:15:27,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (0 of 78 remaining) [2023-11-06 21:15:27,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:15:27,058 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-06 21:15:27,064 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:15:27,065 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:15:27,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:15:27 BasicIcfg [2023-11-06 21:15:27,072 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:15:27,073 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:15:27,073 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:15:27,073 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:15:27,073 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:15:11" (3/4) ... [2023-11-06 21:15:27,075 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:15:27,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 21:15:27,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 21:15:27,078 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-06 21:15:27,086 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-06 21:15:27,087 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 21:15:27,087 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:15:27,088 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:15:27,169 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:15:27,170 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:15:27,170 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:15:27,171 INFO L158 Benchmark]: Toolchain (without parser) took 17721.20ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 179.0MB in the beginning and 96.6MB in the end (delta: 82.4MB). Peak memory consumption was 175.5MB. Max. memory is 16.1GB. [2023-11-06 21:15:27,171 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:15:27,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.33ms. Allocated memory is still 209.7MB. Free memory was 178.8MB in the beginning and 171.2MB in the end (delta: 7.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-11-06 21:15:27,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.38ms. Allocated memory is still 209.7MB. Free memory was 171.2MB in the beginning and 168.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:15:27,173 INFO L158 Benchmark]: Boogie Preprocessor took 50.93ms. Allocated memory is still 209.7MB. Free memory was 168.4MB in the beginning and 166.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:15:27,174 INFO L158 Benchmark]: RCFGBuilder took 1333.36ms. Allocated memory is still 209.7MB. Free memory was 166.3MB in the beginning and 110.3MB in the end (delta: 56.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-06 21:15:27,174 INFO L158 Benchmark]: TraceAbstraction took 15854.73ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 109.3MB in the beginning and 100.8MB in the end (delta: 8.5MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2023-11-06 21:15:27,175 INFO L158 Benchmark]: Witness Printer took 97.60ms. Allocated memory is still 302.0MB. Free memory was 100.8MB in the beginning and 96.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:15:27,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.33ms. Allocated memory is still 209.7MB. Free memory was 178.8MB in the beginning and 171.2MB in the end (delta: 7.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.38ms. Allocated memory is still 209.7MB. Free memory was 171.2MB in the beginning and 168.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.93ms. Allocated memory is still 209.7MB. Free memory was 168.4MB in the beginning and 166.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1333.36ms. Allocated memory is still 209.7MB. Free memory was 166.3MB in the beginning and 110.3MB in the end (delta: 56.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15854.73ms. Allocated memory was 209.7MB in the beginning and 302.0MB in the end (delta: 92.3MB). Free memory was 109.3MB in the beginning and 100.8MB in the end (delta: 8.5MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. * Witness Printer took 97.60ms. Allocated memory is still 302.0MB. Free memory was 100.8MB in the beginning and 96.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6s, 224 PlacesBefore, 86 PlacesAfterwards, 225 TransitionsBefore, 80 TransitionsAfterwards, 6400 CoEnabledTransitionPairs, 9 FixpointIterations, 130 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 9 ConcurrentYvCompositions, 7 ChoiceCompositions, 234 TotalNumberOfCompositions, 25667 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9970, independent: 9501, independent conditional: 0, independent unconditional: 9501, dependent: 469, dependent conditional: 0, dependent unconditional: 469, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2647, independent: 2574, independent conditional: 0, independent unconditional: 2574, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9970, independent: 6927, independent conditional: 0, independent unconditional: 6927, dependent: 396, dependent conditional: 0, dependent unconditional: 396, unknown: 2647, unknown conditional: 0, unknown unconditional: 2647] , Statistics on independence cache: Total cache size (in pairs): 464, Positive cache size: 435, Positive conditional cache size: 0, Positive unconditional cache size: 435, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 128]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 115]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 308 locations, 78 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 233 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 770 IncrementalHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 13 mSDtfsCounter, 770 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 43 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:15:27,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_206d3102-14fb-481f-94ec-c7b9d493cd98/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE