./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:10:25,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:25,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:10:25,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:25,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:25,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:25,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:25,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:25,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:10:25,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:10:25,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:25,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:25,311 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:25,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:25,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:10:25,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:25,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:10:25,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:25,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:25,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:10:25,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:10:25,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:10:25,322 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:10:25,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:25,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:10:25,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:25,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:10:25,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:25,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:25,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:25,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:10:25,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:25,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:25,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:10:25,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:10:25,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:10:25,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:10:25,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:10:25,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:10:25,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:10:25,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:10:25,331 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_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2024-10-31 22:10:25,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:25,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:25,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:25,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:25,659 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:25,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread/queue_ok.i Unable to find full path for "g++" [2024-10-31 22:10:27,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:10:28,225 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:10:28,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/sv-benchmarks/c/pthread/queue_ok.i [2024-10-31 22:10:28,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/data/851223d44/b731a636c77b4994a0d568a48a0957e1/FLAG45b98948c [2024-10-31 22:10:28,480 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/data/851223d44/b731a636c77b4994a0d568a48a0957e1 [2024-10-31 22:10:28,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:10:28,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:10:28,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:28,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:10:28,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:10:28,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:28" (1/1) ... [2024-10-31 22:10:28,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e82c700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:28, skipping insertion in model container [2024-10-31 22:10:28,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:28" (1/1) ... [2024-10-31 22:10:28,587 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:10:29,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:29,597 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:10:29,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:29,767 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:10:29,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29 WrapperNode [2024-10-31 22:10:29,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:29,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:29,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:10:29,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:10:29,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,879 INFO L138 Inliner]: procedures = 274, calls = 94, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 415 [2024-10-31 22:10:29,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:29,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:10:29,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:10:29,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:10:29,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:29,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:30,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:10:30,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:10:30,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:10:30,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:10:30,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (1/1) ... [2024-10-31 22:10:30,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:30,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:30,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:30,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf6f16f-bf92-42ab-9ca1-c8929def019d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:10:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-31 22:10:30,110 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-31 22:10:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-31 22:10:30,111 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-31 22:10:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:10:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:10:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:10:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:10:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:10:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:10:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:10:30,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:10:30,118 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:10:30,378 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:10:30,382 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:31,437 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:10:31,437 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:31,492 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:31,492 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:10:31,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:31 BoogieIcfgContainer [2024-10-31 22:10:31,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:31,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:10:31,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:10:31,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:10:31,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:10:28" (1/3) ... [2024-10-31 22:10:31,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112db523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:31, skipping insertion in model container [2024-10-31 22:10:31,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:29" (2/3) ... [2024-10-31 22:10:31,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112db523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:31, skipping insertion in model container [2024-10-31 22:10:31,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:31" (3/3) ... [2024-10-31 22:10:31,505 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2024-10-31 22:10:31,528 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:10:31,528 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-10-31 22:10:31,528 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:10:31,777 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:10:31,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 466 places, 474 transitions, 962 flow [2024-10-31 22:10:32,114 INFO L124 PetriNetUnfolderBase]: 15/472 cut-off events. [2024-10-31 22:10:32,114 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:10:32,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 472 events. 15/472 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 714 event pairs, 0 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 311. Up to 3 conditions per place. [2024-10-31 22:10:32,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 466 places, 474 transitions, 962 flow [2024-10-31 22:10:32,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 459 places, 467 transitions, 943 flow [2024-10-31 22:10:32,164 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:32,171 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@203f7a59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:32,172 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-10-31 22:10:32,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:32,192 INFO L124 PetriNetUnfolderBase]: 0/69 cut-off events. [2024-10-31 22:10:32,192 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:32,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:32,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:32,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:32,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:32,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1669057084, now seen corresponding path program 1 times [2024-10-31 22:10:32,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:32,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821199215] [2024-10-31 22:10:32,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:32,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:32,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:32,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821199215] [2024-10-31 22:10:32,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821199215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:32,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:32,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:32,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478799214] [2024-10-31 22:10:32,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:32,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:32,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:32,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:32,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:32,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 474 [2024-10-31 22:10:32,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 467 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:32,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:32,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 474 [2024-10-31 22:10:32,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:33,184 INFO L124 PetriNetUnfolderBase]: 40/986 cut-off events. [2024-10-31 22:10:33,184 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-10-31 22:10:33,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 986 events. 40/986 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4379 event pairs, 19 based on Foata normal form. 13/891 useless extension candidates. Maximal degree in co-relation 881. Up to 52 conditions per place. [2024-10-31 22:10:33,198 INFO L140 encePairwiseOnDemand]: 466/474 looper letters, 13 selfloop transitions, 2 changer transitions 0/452 dead transitions. [2024-10-31 22:10:33,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 452 transitions, 943 flow [2024-10-31 22:10:33,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:33,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-10-31 22:10:33,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9578059071729957 [2024-10-31 22:10:33,228 INFO L175 Difference]: Start difference. First operand has 459 places, 467 transitions, 943 flow. Second operand 3 states and 1362 transitions. [2024-10-31 22:10:33,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 452 transitions, 943 flow [2024-10-31 22:10:33,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 452 transitions, 938 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:10:33,250 INFO L231 Difference]: Finished difference. Result has 449 places, 452 transitions, 912 flow [2024-10-31 22:10:33,255 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=912, PETRI_PLACES=449, PETRI_TRANSITIONS=452} [2024-10-31 22:10:33,260 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -10 predicate places. [2024-10-31 22:10:33,262 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 452 transitions, 912 flow [2024-10-31 22:10:33,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:33,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:33,265 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:33,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:10:33,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:33,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:33,268 INFO L85 PathProgramCache]: Analyzing trace with hash 2112843891, now seen corresponding path program 1 times [2024-10-31 22:10:33,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:33,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722843561] [2024-10-31 22:10:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:33,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:33,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:33,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:33,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722843561] [2024-10-31 22:10:33,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722843561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:33,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:33,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:33,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867199696] [2024-10-31 22:10:33,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:33,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:33,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:33,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:33,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:33,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 474 [2024-10-31 22:10:33,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 452 transitions, 912 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:33,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:33,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 474 [2024-10-31 22:10:33,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:33,851 INFO L124 PetriNetUnfolderBase]: 43/1114 cut-off events. [2024-10-31 22:10:33,851 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:10:33,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 1114 events. 43/1114 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5439 event pairs, 19 based on Foata normal form. 0/996 useless extension candidates. Maximal degree in co-relation 1104. Up to 52 conditions per place. [2024-10-31 22:10:33,867 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 13 selfloop transitions, 2 changer transitions 0/451 dead transitions. [2024-10-31 22:10:33,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 451 transitions, 940 flow [2024-10-31 22:10:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1357 transitions. [2024-10-31 22:10:33,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9542897327707455 [2024-10-31 22:10:33,874 INFO L175 Difference]: Start difference. First operand has 449 places, 452 transitions, 912 flow. Second operand 3 states and 1357 transitions. [2024-10-31 22:10:33,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 451 transitions, 940 flow [2024-10-31 22:10:33,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 451 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:33,888 INFO L231 Difference]: Finished difference. Result has 448 places, 451 transitions, 910 flow [2024-10-31 22:10:33,890 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=910, PETRI_PLACES=448, PETRI_TRANSITIONS=451} [2024-10-31 22:10:33,891 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -11 predicate places. [2024-10-31 22:10:33,891 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 451 transitions, 910 flow [2024-10-31 22:10:33,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:33,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:33,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:33,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:10:33,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:33,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:33,895 INFO L85 PathProgramCache]: Analyzing trace with hash -83855274, now seen corresponding path program 1 times [2024-10-31 22:10:33,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:33,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618006289] [2024-10-31 22:10:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:33,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:34,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:34,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:34,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618006289] [2024-10-31 22:10:34,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618006289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:34,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:34,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939493522] [2024-10-31 22:10:34,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:34,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:10:34,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:34,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:10:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:10:35,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 474 [2024-10-31 22:10:35,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 451 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:35,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:35,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 474 [2024-10-31 22:10:35,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:38,132 INFO L124 PetriNetUnfolderBase]: 2177/9184 cut-off events. [2024-10-31 22:10:38,133 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-31 22:10:38,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13285 conditions, 9184 events. 2177/9184 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 79864 event pairs, 1832 based on Foata normal form. 0/8228 useless extension candidates. Maximal degree in co-relation 13204. Up to 4013 conditions per place. [2024-10-31 22:10:38,200 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 100 selfloop transitions, 5 changer transitions 0/450 dead transitions. [2024-10-31 22:10:38,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 450 transitions, 1118 flow [2024-10-31 22:10:38,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:10:38,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:10:38,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2254 transitions. [2024-10-31 22:10:38,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7925457102672293 [2024-10-31 22:10:38,210 INFO L175 Difference]: Start difference. First operand has 448 places, 451 transitions, 910 flow. Second operand 6 states and 2254 transitions. [2024-10-31 22:10:38,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 450 transitions, 1118 flow [2024-10-31 22:10:38,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 450 transitions, 1114 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:38,220 INFO L231 Difference]: Finished difference. Result has 450 places, 450 transitions, 914 flow [2024-10-31 22:10:38,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=450, PETRI_TRANSITIONS=450} [2024-10-31 22:10:38,221 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -9 predicate places. [2024-10-31 22:10:38,222 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 450 transitions, 914 flow [2024-10-31 22:10:38,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:38,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:38,224 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:38,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:10:38,225 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:38,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:38,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1353436018, now seen corresponding path program 1 times [2024-10-31 22:10:38,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:38,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815178604] [2024-10-31 22:10:38,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:38,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:38,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:38,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:38,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815178604] [2024-10-31 22:10:38,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815178604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:38,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:38,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:38,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096970457] [2024-10-31 22:10:38,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:38,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:10:38,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:38,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:10:38,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:10:39,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 474 [2024-10-31 22:10:39,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 450 transitions, 914 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:39,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:39,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 474 [2024-10-31 22:10:39,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:42,598 INFO L124 PetriNetUnfolderBase]: 2177/9183 cut-off events. [2024-10-31 22:10:42,599 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-31 22:10:42,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13287 conditions, 9183 events. 2177/9183 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 79786 event pairs, 1832 based on Foata normal form. 0/8228 useless extension candidates. Maximal degree in co-relation 13190. Up to 4013 conditions per place. [2024-10-31 22:10:42,674 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 100 selfloop transitions, 5 changer transitions 0/449 dead transitions. [2024-10-31 22:10:42,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 449 transitions, 1122 flow [2024-10-31 22:10:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:10:42,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:10:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2254 transitions. [2024-10-31 22:10:42,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7925457102672293 [2024-10-31 22:10:42,682 INFO L175 Difference]: Start difference. First operand has 450 places, 450 transitions, 914 flow. Second operand 6 states and 2254 transitions. [2024-10-31 22:10:42,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 449 transitions, 1122 flow [2024-10-31 22:10:42,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 449 transitions, 1112 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:10:42,692 INFO L231 Difference]: Finished difference. Result has 449 places, 449 transitions, 912 flow [2024-10-31 22:10:42,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=449, PETRI_TRANSITIONS=449} [2024-10-31 22:10:42,694 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -10 predicate places. [2024-10-31 22:10:42,694 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 449 transitions, 912 flow [2024-10-31 22:10:42,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:42,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:42,697 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:42,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:10:42,697 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:42,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:42,698 INFO L85 PathProgramCache]: Analyzing trace with hash -724785312, now seen corresponding path program 1 times [2024-10-31 22:10:42,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:42,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998814966] [2024-10-31 22:10:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:42,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:43,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:43,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998814966] [2024-10-31 22:10:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998814966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:43,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:43,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:43,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88492225] [2024-10-31 22:10:43,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:43,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:10:43,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:43,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:10:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:10:44,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 474 [2024-10-31 22:10:44,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 449 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:44,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:44,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 474 [2024-10-31 22:10:44,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:46,792 INFO L124 PetriNetUnfolderBase]: 2177/9182 cut-off events. [2024-10-31 22:10:46,792 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-31 22:10:46,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13286 conditions, 9182 events. 2177/9182 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 79836 event pairs, 1832 based on Foata normal form. 0/8228 useless extension candidates. Maximal degree in co-relation 13181. Up to 4013 conditions per place. [2024-10-31 22:10:46,855 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 100 selfloop transitions, 5 changer transitions 0/448 dead transitions. [2024-10-31 22:10:46,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 448 transitions, 1120 flow [2024-10-31 22:10:46,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:10:46,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:10:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2254 transitions. [2024-10-31 22:10:46,863 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7925457102672293 [2024-10-31 22:10:46,864 INFO L175 Difference]: Start difference. First operand has 449 places, 449 transitions, 912 flow. Second operand 6 states and 2254 transitions. [2024-10-31 22:10:46,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 448 transitions, 1120 flow [2024-10-31 22:10:46,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 448 transitions, 1110 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:10:46,876 INFO L231 Difference]: Finished difference. Result has 448 places, 448 transitions, 910 flow [2024-10-31 22:10:46,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=910, PETRI_PLACES=448, PETRI_TRANSITIONS=448} [2024-10-31 22:10:46,878 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -11 predicate places. [2024-10-31 22:10:46,878 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 448 transitions, 910 flow [2024-10-31 22:10:46,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:46,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:46,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:46,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:10:46,881 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:46,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:46,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1058618610, now seen corresponding path program 1 times [2024-10-31 22:10:46,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:46,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201648549] [2024-10-31 22:10:46,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:46,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:47,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:47,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201648549] [2024-10-31 22:10:47,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201648549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:47,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:47,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437964606] [2024-10-31 22:10:47,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:47,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:10:47,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:47,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:10:47,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:10:48,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 474 [2024-10-31 22:10:48,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 448 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:48,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:48,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 474 [2024-10-31 22:10:48,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:49,859 INFO L124 PetriNetUnfolderBase]: 502/4907 cut-off events. [2024-10-31 22:10:49,859 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-31 22:10:49,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5777 conditions, 4907 events. 502/4907 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 39175 event pairs, 344 based on Foata normal form. 0/4325 useless extension candidates. Maximal degree in co-relation 5654. Up to 811 conditions per place. [2024-10-31 22:10:49,900 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 54 selfloop transitions, 5 changer transitions 0/447 dead transitions. [2024-10-31 22:10:49,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 447 transitions, 1026 flow [2024-10-31 22:10:49,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:10:49,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:10:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2484 transitions. [2024-10-31 22:10:49,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734177215189873 [2024-10-31 22:10:49,925 INFO L175 Difference]: Start difference. First operand has 448 places, 448 transitions, 910 flow. Second operand 6 states and 2484 transitions. [2024-10-31 22:10:49,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 447 transitions, 1026 flow [2024-10-31 22:10:49,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 447 transitions, 1016 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:10:49,944 INFO L231 Difference]: Finished difference. Result has 447 places, 447 transitions, 908 flow [2024-10-31 22:10:49,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=447, PETRI_TRANSITIONS=447} [2024-10-31 22:10:49,946 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -12 predicate places. [2024-10-31 22:10:49,946 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 447 transitions, 908 flow [2024-10-31 22:10:49,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:49,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:49,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:49,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:10:49,957 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:49,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:49,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1311928055, now seen corresponding path program 1 times [2024-10-31 22:10:49,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:49,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211578035] [2024-10-31 22:10:49,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:49,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:50,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:50,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211578035] [2024-10-31 22:10:50,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211578035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:50,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:50,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:50,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332119844] [2024-10-31 22:10:50,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:50,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:10:50,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:50,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:10:50,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:10:51,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 474 [2024-10-31 22:10:51,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 447 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:51,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:51,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 474 [2024-10-31 22:10:51,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:53,131 INFO L124 PetriNetUnfolderBase]: 502/4906 cut-off events. [2024-10-31 22:10:53,131 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-31 22:10:53,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5776 conditions, 4906 events. 502/4906 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 39123 event pairs, 344 based on Foata normal form. 0/4325 useless extension candidates. Maximal degree in co-relation 5615. Up to 811 conditions per place. [2024-10-31 22:10:53,296 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 54 selfloop transitions, 5 changer transitions 0/446 dead transitions. [2024-10-31 22:10:53,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 446 transitions, 1024 flow [2024-10-31 22:10:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:10:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:10:53,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2484 transitions. [2024-10-31 22:10:53,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734177215189873 [2024-10-31 22:10:53,303 INFO L175 Difference]: Start difference. First operand has 447 places, 447 transitions, 908 flow. Second operand 6 states and 2484 transitions. [2024-10-31 22:10:53,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 446 transitions, 1024 flow [2024-10-31 22:10:53,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 446 transitions, 1014 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:10:53,312 INFO L231 Difference]: Finished difference. Result has 446 places, 446 transitions, 906 flow [2024-10-31 22:10:53,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=906, PETRI_PLACES=446, PETRI_TRANSITIONS=446} [2024-10-31 22:10:53,314 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -13 predicate places. [2024-10-31 22:10:53,314 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 446 transitions, 906 flow [2024-10-31 22:10:53,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:53,316 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:53,316 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:53,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:10:53,317 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:53,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:53,318 INFO L85 PathProgramCache]: Analyzing trace with hash -92809043, now seen corresponding path program 1 times [2024-10-31 22:10:53,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:53,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008988844] [2024-10-31 22:10:53,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:53,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:53,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:53,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:53,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008988844] [2024-10-31 22:10:53,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008988844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:53,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:53,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:53,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599832947] [2024-10-31 22:10:53,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:53,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:53,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:53,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:53,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:53,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 474 [2024-10-31 22:10:53,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 446 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:53,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:53,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 474 [2024-10-31 22:10:53,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:53,762 INFO L124 PetriNetUnfolderBase]: 53/1041 cut-off events. [2024-10-31 22:10:53,762 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:10:53,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 1041 events. 53/1041 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4944 event pairs, 12 based on Foata normal form. 0/937 useless extension candidates. Maximal degree in co-relation 1009. Up to 56 conditions per place. [2024-10-31 22:10:53,773 INFO L140 encePairwiseOnDemand]: 469/474 looper letters, 17 selfloop transitions, 4 changer transitions 0/454 dead transitions. [2024-10-31 22:10:53,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 454 transitions, 967 flow [2024-10-31 22:10:53,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:53,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1375 transitions. [2024-10-31 22:10:53,777 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9669479606188467 [2024-10-31 22:10:53,778 INFO L175 Difference]: Start difference. First operand has 446 places, 446 transitions, 906 flow. Second operand 3 states and 1375 transitions. [2024-10-31 22:10:53,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 454 transitions, 967 flow [2024-10-31 22:10:53,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 454 transitions, 957 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:10:53,789 INFO L231 Difference]: Finished difference. Result has 445 places, 449 transitions, 926 flow [2024-10-31 22:10:53,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=926, PETRI_PLACES=445, PETRI_TRANSITIONS=449} [2024-10-31 22:10:53,791 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -14 predicate places. [2024-10-31 22:10:53,791 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 449 transitions, 926 flow [2024-10-31 22:10:53,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:53,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:53,794 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:53,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:10:53,794 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:53,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:53,798 INFO L85 PathProgramCache]: Analyzing trace with hash -255892683, now seen corresponding path program 1 times [2024-10-31 22:10:53,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:53,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500346095] [2024-10-31 22:10:53,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:53,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:53,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:53,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500346095] [2024-10-31 22:10:53,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500346095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:53,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:53,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:53,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350901647] [2024-10-31 22:10:53,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:53,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:53,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:53,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:53,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 474 [2024-10-31 22:10:53,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 449 transitions, 926 flow. Second operand has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:53,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:53,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 474 [2024-10-31 22:10:53,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:54,352 INFO L124 PetriNetUnfolderBase]: 96/2101 cut-off events. [2024-10-31 22:10:54,358 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-31 22:10:54,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2279 conditions, 2101 events. 96/2101 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 13702 event pairs, 24 based on Foata normal form. 0/1880 useless extension candidates. Maximal degree in co-relation 1965. Up to 85 conditions per place. [2024-10-31 22:10:54,384 INFO L140 encePairwiseOnDemand]: 469/474 looper letters, 16 selfloop transitions, 4 changer transitions 0/456 dead transitions. [2024-10-31 22:10:54,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 456 transitions, 981 flow [2024-10-31 22:10:54,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:54,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1374 transitions. [2024-10-31 22:10:54,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9662447257383966 [2024-10-31 22:10:54,388 INFO L175 Difference]: Start difference. First operand has 445 places, 449 transitions, 926 flow. Second operand 3 states and 1374 transitions. [2024-10-31 22:10:54,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 456 transitions, 981 flow [2024-10-31 22:10:54,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 456 transitions, 973 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:54,466 INFO L231 Difference]: Finished difference. Result has 447 places, 452 transitions, 948 flow [2024-10-31 22:10:54,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=948, PETRI_PLACES=447, PETRI_TRANSITIONS=452} [2024-10-31 22:10:54,468 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -12 predicate places. [2024-10-31 22:10:54,469 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 452 transitions, 948 flow [2024-10-31 22:10:54,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:54,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:54,470 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:54,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:10:54,471 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-31 22:10:54,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:54,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1959281702, now seen corresponding path program 1 times [2024-10-31 22:10:54,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:54,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970446014] [2024-10-31 22:10:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:54,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:54,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:54,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:54,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970446014] [2024-10-31 22:10:54,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970446014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:54,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:54,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:54,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582810762] [2024-10-31 22:10:54,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:54,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:54,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:54,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:54,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:54,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 474 [2024-10-31 22:10:54,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 452 transitions, 948 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:54,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:54,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 474 [2024-10-31 22:10:54,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand