./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl --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 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:09:55,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:09:55,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:09:55,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:09:55,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:09:55,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:09:55,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:09:55,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:09:55,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:09:55,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:09:55,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:09:55,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:09:55,211 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:09:55,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:09:55,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:09:55,213 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:09:55,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:09:55,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:09:55,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:09:55,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:09:55,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:09:55,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:09:55,217 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:09:55,218 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:09:55,219 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:09:55,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:09:55,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:09:55,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:09:55,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:09:55,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:09:55,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:55,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:09:55,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:09:55,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:09:55,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:09:55,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:09:55,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:09:55,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:09:55,225 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:09:55,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:09:55,226 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:09:55,226 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_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac [2023-11-12 02:09:55,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:09:55,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:09:55,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:09:55,562 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:09:55,563 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:09:55,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2023-11-12 02:09:58,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:09:58,944 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:09:58,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2023-11-12 02:09:58,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/data/aec5d8358/2ab2f0d256de43bc96fed3e8a0e9107f/FLAG6e2ac7882 [2023-11-12 02:09:58,984 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/data/aec5d8358/2ab2f0d256de43bc96fed3e8a0e9107f [2023-11-12 02:09:58,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:09:58,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:09:59,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:59,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:09:59,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:09:59,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:58" (1/1) ... [2023-11-12 02:09:59,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b52438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59, skipping insertion in model container [2023-11-12 02:09:59,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:58" (1/1) ... [2023-11-12 02:09:59,068 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:09:59,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:59,508 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:09:59,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:59,624 WARN L672 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:59,632 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:09:59,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59 WrapperNode [2023-11-12 02:09:59,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:59,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:59,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:09:59,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:09:59,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,684 INFO L138 Inliner]: procedures = 159, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2023-11-12 02:09:59,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:59,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:09:59,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:09:59,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:09:59,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:09:59,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:09:59,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:09:59,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:09:59,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (1/1) ... [2023-11-12 02:09:59,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:59,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:59,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:09:59,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:09:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:09:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:09:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:09:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:09:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:09:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:09:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-12 02:09:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:09:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-12 02:09:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-12 02:09:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:09:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:09:59,806 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:09:59,970 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:09:59,972 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:10:00,195 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:10:00,204 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:10:00,204 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:10:00,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:00 BoogieIcfgContainer [2023-11-12 02:10:00,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:10:00,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:10:00,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:10:00,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:10:00,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:09:58" (1/3) ... [2023-11-12 02:10:00,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f2664b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:10:00, skipping insertion in model container [2023-11-12 02:10:00,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:59" (2/3) ... [2023-11-12 02:10:00,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f2664b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:10:00, skipping insertion in model container [2023-11-12 02:10:00,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:00" (3/3) ... [2023-11-12 02:10:00,223 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race.i [2023-11-12 02:10:00,232 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:10:00,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:10:00,243 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 02:10:00,243 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:10:00,298 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:10:00,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 104 transitions, 212 flow [2023-11-12 02:10:00,410 INFO L124 PetriNetUnfolderBase]: 7/136 cut-off events. [2023-11-12 02:10:00,410 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:10:00,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 136 events. 7/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 175 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 76. Up to 4 conditions per place. [2023-11-12 02:10:00,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 104 transitions, 212 flow [2023-11-12 02:10:00,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 104 transitions, 212 flow [2023-11-12 02:10:00,425 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:10:00,436 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 104 transitions, 212 flow [2023-11-12 02:10:00,439 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 104 transitions, 212 flow [2023-11-12 02:10:00,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 104 transitions, 212 flow [2023-11-12 02:10:00,477 INFO L124 PetriNetUnfolderBase]: 7/136 cut-off events. [2023-11-12 02:10:00,477 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:10:00,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 136 events. 7/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 175 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 76. Up to 4 conditions per place. [2023-11-12 02:10:00,481 INFO L119 LiptonReduction]: Number of co-enabled transitions 2652 [2023-11-12 02:10:02,778 INFO L134 LiptonReduction]: Checked pairs total: 8163 [2023-11-12 02:10:02,778 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-11-12 02:10:02,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:10:02,820 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@162a198e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:10:02,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-12 02:10:02,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:10:02,824 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-12 02:10:02,825 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:10:02,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:02,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:10:02,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:10:02,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:02,832 INFO L85 PathProgramCache]: Analyzing trace with hash 357158, now seen corresponding path program 1 times [2023-11-12 02:10:02,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:02,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890251874] [2023-11-12 02:10:02,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:02,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:03,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:03,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890251874] [2023-11-12 02:10:03,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890251874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:03,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:03,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:03,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065008489] [2023-11-12 02:10:03,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:03,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:03,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:03,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:03,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:03,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 178 [2023-11-12 02:10:03,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:03,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 178 [2023-11-12 02:10:03,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:03,336 INFO L124 PetriNetUnfolderBase]: 90/297 cut-off events. [2023-11-12 02:10:03,336 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:10:03,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 297 events. 90/297 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1446 event pairs, 31 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 473. Up to 123 conditions per place. [2023-11-12 02:10:03,344 INFO L140 encePairwiseOnDemand]: 165/178 looper letters, 31 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2023-11-12 02:10:03,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 184 flow [2023-11-12 02:10:03,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:03,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2023-11-12 02:10:03,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5861423220973783 [2023-11-12 02:10:03,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2023-11-12 02:10:03,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2023-11-12 02:10:03,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:03,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2023-11-12 02:10:03,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,396 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 76 flow. Second operand 3 states and 313 transitions. [2023-11-12 02:10:03,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 184 flow [2023-11-12 02:10:03,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:10:03,402 INFO L231 Difference]: Finished difference. Result has 40 places, 42 transitions, 142 flow [2023-11-12 02:10:03,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=40, PETRI_TRANSITIONS=42} [2023-11-12 02:10:03,410 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2023-11-12 02:10:03,411 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 42 transitions, 142 flow [2023-11-12 02:10:03,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:03,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:03,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:10:03,413 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:10:03,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:03,423 INFO L85 PathProgramCache]: Analyzing trace with hash -864513632, now seen corresponding path program 1 times [2023-11-12 02:10:03,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:03,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435786760] [2023-11-12 02:10:03,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:03,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:03,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:03,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:03,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435786760] [2023-11-12 02:10:03,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435786760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:03,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:03,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:03,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796286980] [2023-11-12 02:10:03,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:03,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:03,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:03,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:03,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 178 [2023-11-12 02:10:03,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:03,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 178 [2023-11-12 02:10:03,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:03,618 INFO L124 PetriNetUnfolderBase]: 72/256 cut-off events. [2023-11-12 02:10:03,619 INFO L125 PetriNetUnfolderBase]: For 105/110 co-relation queries the response was YES. [2023-11-12 02:10:03,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 256 events. 72/256 cut-off events. For 105/110 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1227 event pairs, 44 based on Foata normal form. 1/235 useless extension candidates. Maximal degree in co-relation 510. Up to 145 conditions per place. [2023-11-12 02:10:03,623 INFO L140 encePairwiseOnDemand]: 173/178 looper letters, 24 selfloop transitions, 6 changer transitions 0/50 dead transitions. [2023-11-12 02:10:03,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 50 transitions, 228 flow [2023-11-12 02:10:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2023-11-12 02:10:03,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5468164794007491 [2023-11-12 02:10:03,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2023-11-12 02:10:03,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2023-11-12 02:10:03,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:03,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2023-11-12 02:10:03,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,632 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 142 flow. Second operand 3 states and 292 transitions. [2023-11-12 02:10:03,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 50 transitions, 228 flow [2023-11-12 02:10:03,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:10:03,637 INFO L231 Difference]: Finished difference. Result has 41 places, 46 transitions, 168 flow [2023-11-12 02:10:03,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=41, PETRI_TRANSITIONS=46} [2023-11-12 02:10:03,638 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 4 predicate places. [2023-11-12 02:10:03,638 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 46 transitions, 168 flow [2023-11-12 02:10:03,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:03,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:03,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:10:03,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:10:03,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:03,641 INFO L85 PathProgramCache]: Analyzing trace with hash -758946130, now seen corresponding path program 1 times [2023-11-12 02:10:03,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:03,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357825818] [2023-11-12 02:10:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:03,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:03,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:03,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357825818] [2023-11-12 02:10:03,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357825818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:03,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:03,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:03,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781994509] [2023-11-12 02:10:03,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:03,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:03,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:03,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:03,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:03,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 178 [2023-11-12 02:10:03,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 46 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:03,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 178 [2023-11-12 02:10:03,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:03,761 INFO L124 PetriNetUnfolderBase]: 75/286 cut-off events. [2023-11-12 02:10:03,761 INFO L125 PetriNetUnfolderBase]: For 105/121 co-relation queries the response was YES. [2023-11-12 02:10:03,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 286 events. 75/286 cut-off events. For 105/121 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1534 event pairs, 33 based on Foata normal form. 6/271 useless extension candidates. Maximal degree in co-relation 557. Up to 115 conditions per place. [2023-11-12 02:10:03,765 INFO L140 encePairwiseOnDemand]: 174/178 looper letters, 24 selfloop transitions, 3 changer transitions 1/53 dead transitions. [2023-11-12 02:10:03,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 242 flow [2023-11-12 02:10:03,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:03,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2023-11-12 02:10:03,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5842696629213483 [2023-11-12 02:10:03,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2023-11-12 02:10:03,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2023-11-12 02:10:03,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:03,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2023-11-12 02:10:03,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,772 INFO L175 Difference]: Start difference. First operand has 41 places, 46 transitions, 168 flow. Second operand 3 states and 312 transitions. [2023-11-12 02:10:03,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 242 flow [2023-11-12 02:10:03,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 53 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:10:03,776 INFO L231 Difference]: Finished difference. Result has 44 places, 48 transitions, 184 flow [2023-11-12 02:10:03,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=44, PETRI_TRANSITIONS=48} [2023-11-12 02:10:03,777 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2023-11-12 02:10:03,777 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 48 transitions, 184 flow [2023-11-12 02:10:03,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:03,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:03,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:10:03,779 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:10:03,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:03,779 INFO L85 PathProgramCache]: Analyzing trace with hash -573505561, now seen corresponding path program 1 times [2023-11-12 02:10:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:03,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444197203] [2023-11-12 02:10:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:03,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:03,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:03,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444197203] [2023-11-12 02:10:03,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444197203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:03,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:03,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495356507] [2023-11-12 02:10:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:03,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:03,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:03,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 178 [2023-11-12 02:10:03,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 48 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:03,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 178 [2023-11-12 02:10:03,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:03,913 INFO L124 PetriNetUnfolderBase]: 68/268 cut-off events. [2023-11-12 02:10:03,913 INFO L125 PetriNetUnfolderBase]: For 121/140 co-relation queries the response was YES. [2023-11-12 02:10:03,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 268 events. 68/268 cut-off events. For 121/140 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1422 event pairs, 37 based on Foata normal form. 6/256 useless extension candidates. Maximal degree in co-relation 546. Up to 130 conditions per place. [2023-11-12 02:10:03,916 INFO L140 encePairwiseOnDemand]: 174/178 looper letters, 25 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2023-11-12 02:10:03,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 266 flow [2023-11-12 02:10:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-11-12 02:10:03,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5730337078651685 [2023-11-12 02:10:03,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-11-12 02:10:03,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-11-12 02:10:03,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:03,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-11-12 02:10:03,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,923 INFO L175 Difference]: Start difference. First operand has 44 places, 48 transitions, 184 flow. Second operand 3 states and 306 transitions. [2023-11-12 02:10:03,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 266 flow [2023-11-12 02:10:03,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 56 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:10:03,927 INFO L231 Difference]: Finished difference. Result has 45 places, 50 transitions, 202 flow [2023-11-12 02:10:03,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=45, PETRI_TRANSITIONS=50} [2023-11-12 02:10:03,929 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2023-11-12 02:10:03,929 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 50 transitions, 202 flow [2023-11-12 02:10:03,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:03,930 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-12 02:10:03,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:10:03,930 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 02:10:03,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash -228269436, now seen corresponding path program 1 times [2023-11-12 02:10:03,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:03,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266952985] [2023-11-12 02:10:03,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:03,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:03,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:04,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:04,008 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:10:04,009 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-11-12 02:10:04,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-12 02:10:04,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-12 02:10:04,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-11-12 02:10:04,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-12 02:10:04,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-11-12 02:10:04,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-11-12 02:10:04,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-12 02:10:04,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-12 02:10:04,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-12 02:10:04,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-11-12 02:10:04,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-11-12 02:10:04,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:10:04,014 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 02:10:04,017 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:10:04,017 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 02:10:04,064 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:10:04,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 131 transitions, 272 flow [2023-11-12 02:10:04,115 INFO L124 PetriNetUnfolderBase]: 10/213 cut-off events. [2023-11-12 02:10:04,116 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:10:04,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 213 events. 10/213 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2023-11-12 02:10:04,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 131 transitions, 272 flow [2023-11-12 02:10:04,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 131 transitions, 272 flow [2023-11-12 02:10:04,120 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:10:04,120 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 131 transitions, 272 flow [2023-11-12 02:10:04,122 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 131 transitions, 272 flow [2023-11-12 02:10:04,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 131 transitions, 272 flow [2023-11-12 02:10:04,171 INFO L124 PetriNetUnfolderBase]: 10/213 cut-off events. [2023-11-12 02:10:04,171 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:10:04,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 213 events. 10/213 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2023-11-12 02:10:04,179 INFO L119 LiptonReduction]: Number of co-enabled transitions 6708 [2023-11-12 02:10:06,319 INFO L134 LiptonReduction]: Checked pairs total: 24740 [2023-11-12 02:10:06,319 INFO L136 LiptonReduction]: Total number of compositions: 82 [2023-11-12 02:10:06,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:10:06,323 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@162a198e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:10:06,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-12 02:10:06,325 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:10:06,325 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-12 02:10:06,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:10:06,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:06,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:10:06,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 02:10:06,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:06,326 INFO L85 PathProgramCache]: Analyzing trace with hash 595412, now seen corresponding path program 1 times [2023-11-12 02:10:06,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:06,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229594556] [2023-11-12 02:10:06,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:06,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:06,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:06,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:06,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229594556] [2023-11-12 02:10:06,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229594556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:06,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:06,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:06,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915512372] [2023-11-12 02:10:06,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:06,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:06,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:06,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:06,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:06,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 213 [2023-11-12 02:10:06,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:06,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:06,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 213 [2023-11-12 02:10:06,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:06,994 INFO L124 PetriNetUnfolderBase]: 2801/5657 cut-off events. [2023-11-12 02:10:06,994 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-11-12 02:10:07,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10270 conditions, 5657 events. 2801/5657 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 42743 event pairs, 1119 based on Foata normal form. 0/5160 useless extension candidates. Maximal degree in co-relation 4518. Up to 2613 conditions per place. [2023-11-12 02:10:07,038 INFO L140 encePairwiseOnDemand]: 196/213 looper letters, 51 selfloop transitions, 11 changer transitions 0/80 dead transitions. [2023-11-12 02:10:07,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 80 transitions, 299 flow [2023-11-12 02:10:07,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:07,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2023-11-12 02:10:07,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6306729264475743 [2023-11-12 02:10:07,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2023-11-12 02:10:07,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2023-11-12 02:10:07,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:07,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2023-11-12 02:10:07,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:07,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:07,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:07,046 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 118 flow. Second operand 3 states and 403 transitions. [2023-11-12 02:10:07,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 80 transitions, 299 flow [2023-11-12 02:10:07,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 80 transitions, 299 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:10:07,049 INFO L231 Difference]: Finished difference. Result has 60 places, 63 transitions, 210 flow [2023-11-12 02:10:07,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=60, PETRI_TRANSITIONS=63} [2023-11-12 02:10:07,050 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2023-11-12 02:10:07,050 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 63 transitions, 210 flow [2023-11-12 02:10:07,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:07,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:07,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:07,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:10:07,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 02:10:07,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:07,052 INFO L85 PathProgramCache]: Analyzing trace with hash 131066156, now seen corresponding path program 1 times [2023-11-12 02:10:07,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:07,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619145030] [2023-11-12 02:10:07,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:07,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:07,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:07,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:07,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619145030] [2023-11-12 02:10:07,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619145030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:07,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:07,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:07,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380550307] [2023-11-12 02:10:07,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:07,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:07,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:07,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:07,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:07,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 213 [2023-11-12 02:10:07,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 63 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:07,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:07,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 213 [2023-11-12 02:10:07,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:07,440 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][11], [72#L704-1true, threadThread1of2ForFork0InUse, 37#L692-2true, 141#true, threadThread2of2ForFork0InUse, 137#(= |#race~threads_alive~0| 0), 64#L690-3true, Black: 135#true]) [2023-11-12 02:10:07,440 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-12 02:10:07,441 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-12 02:10:07,441 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-12 02:10:07,441 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-12 02:10:07,441 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][11], [72#L704-1true, 9#L690-1true, threadThread1of2ForFork0InUse, 37#L692-2true, threadThread2of2ForFork0InUse, 141#true, 137#(= |#race~threads_alive~0| 0), Black: 135#true]) [2023-11-12 02:10:07,441 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-12 02:10:07,441 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:10:07,442 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:10:07,442 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:10:07,444 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][11], [72#L704-1true, threadThread1of2ForFork0InUse, 37#L692-2true, 141#true, threadThread2of2ForFork0InUse, 137#(= |#race~threads_alive~0| 0), 41#L690-5true, Black: 135#true]) [2023-11-12 02:10:07,444 INFO L294 olderBase$Statistics]: this new event has 34 ancestors and is cut-off event [2023-11-12 02:10:07,445 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-12 02:10:07,445 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-12 02:10:07,445 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-12 02:10:07,478 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][11], [72#L704-1true, 113#L691true, threadThread1of2ForFork0InUse, 37#L692-2true, threadThread2of2ForFork0InUse, 141#true, 137#(= |#race~threads_alive~0| 0), Black: 135#true]) [2023-11-12 02:10:07,478 INFO L294 olderBase$Statistics]: this new event has 35 ancestors and is cut-off event [2023-11-12 02:10:07,479 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:10:07,479 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:10:07,479 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-12 02:10:07,940 INFO L124 PetriNetUnfolderBase]: 2304/4945 cut-off events. [2023-11-12 02:10:07,942 INFO L125 PetriNetUnfolderBase]: For 2380/2499 co-relation queries the response was YES. [2023-11-12 02:10:07,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11092 conditions, 4945 events. 2304/4945 cut-off events. For 2380/2499 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 38894 event pairs, 1523 based on Foata normal form. 28/4601 useless extension candidates. Maximal degree in co-relation 4089. Up to 3251 conditions per place. [2023-11-12 02:10:07,988 INFO L140 encePairwiseOnDemand]: 206/213 looper letters, 43 selfloop transitions, 11 changer transitions 0/83 dead transitions. [2023-11-12 02:10:07,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 83 transitions, 382 flow [2023-11-12 02:10:07,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:07,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-11-12 02:10:07,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5993740219092332 [2023-11-12 02:10:07,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-11-12 02:10:07,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-11-12 02:10:07,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:07,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-11-12 02:10:07,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:07,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:07,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:07,996 INFO L175 Difference]: Start difference. First operand has 60 places, 63 transitions, 210 flow. Second operand 3 states and 383 transitions. [2023-11-12 02:10:07,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 83 transitions, 382 flow [2023-11-12 02:10:08,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 83 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:10:08,007 INFO L231 Difference]: Finished difference. Result has 61 places, 72 transitions, 275 flow [2023-11-12 02:10:08,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=61, PETRI_TRANSITIONS=72} [2023-11-12 02:10:08,009 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-11-12 02:10:08,009 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 72 transitions, 275 flow [2023-11-12 02:10:08,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:08,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:08,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:08,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:10:08,010 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 02:10:08,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:08,011 INFO L85 PathProgramCache]: Analyzing trace with hash 236604828, now seen corresponding path program 1 times [2023-11-12 02:10:08,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:08,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551995516] [2023-11-12 02:10:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:08,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:08,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551995516] [2023-11-12 02:10:08,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551995516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:08,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:08,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:08,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469797415] [2023-11-12 02:10:08,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:08,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:08,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:08,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:08,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:08,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 213 [2023-11-12 02:10:08,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 72 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:08,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:08,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 213 [2023-11-12 02:10:08,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:08,858 INFO L124 PetriNetUnfolderBase]: 2514/5738 cut-off events. [2023-11-12 02:10:08,858 INFO L125 PetriNetUnfolderBase]: For 1929/2450 co-relation queries the response was YES. [2023-11-12 02:10:08,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12217 conditions, 5738 events. 2514/5738 cut-off events. For 1929/2450 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 49295 event pairs, 1355 based on Foata normal form. 87/5283 useless extension candidates. Maximal degree in co-relation 8263. Up to 2670 conditions per place. [2023-11-12 02:10:08,921 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 42 selfloop transitions, 4 changer transitions 0/88 dead transitions. [2023-11-12 02:10:08,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 88 transitions, 407 flow [2023-11-12 02:10:08,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:08,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-11-12 02:10:08,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6322378716744914 [2023-11-12 02:10:08,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-11-12 02:10:08,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-11-12 02:10:08,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:08,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-11-12 02:10:08,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:08,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:08,932 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:08,932 INFO L175 Difference]: Start difference. First operand has 61 places, 72 transitions, 275 flow. Second operand 3 states and 404 transitions. [2023-11-12 02:10:08,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 88 transitions, 407 flow [2023-11-12 02:10:08,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 88 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:10:08,947 INFO L231 Difference]: Finished difference. Result has 64 places, 75 transitions, 294 flow [2023-11-12 02:10:08,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=64, PETRI_TRANSITIONS=75} [2023-11-12 02:10:08,949 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-11-12 02:10:08,949 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 75 transitions, 294 flow [2023-11-12 02:10:08,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:08,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:08,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:08,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:10:08,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 02:10:08,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:08,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1060978391, now seen corresponding path program 1 times [2023-11-12 02:10:08,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:08,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856586371] [2023-11-12 02:10:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:08,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:09,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856586371] [2023-11-12 02:10:09,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856586371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:09,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:09,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:09,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863967589] [2023-11-12 02:10:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:09,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:09,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:09,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:09,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 213 [2023-11-12 02:10:09,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 75 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:09,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:09,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 213 [2023-11-12 02:10:09,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:09,818 INFO L124 PetriNetUnfolderBase]: 2641/6105 cut-off events. [2023-11-12 02:10:09,818 INFO L125 PetriNetUnfolderBase]: For 2692/3297 co-relation queries the response was YES. [2023-11-12 02:10:09,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13570 conditions, 6105 events. 2641/6105 cut-off events. For 2692/3297 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 54652 event pairs, 1520 based on Foata normal form. 108/5591 useless extension candidates. Maximal degree in co-relation 9108. Up to 3061 conditions per place. [2023-11-12 02:10:09,859 INFO L140 encePairwiseOnDemand]: 207/213 looper letters, 46 selfloop transitions, 7 changer transitions 0/97 dead transitions. [2023-11-12 02:10:09,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 97 transitions, 483 flow [2023-11-12 02:10:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-11-12 02:10:09,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.622848200312989 [2023-11-12 02:10:09,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-11-12 02:10:09,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-11-12 02:10:09,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:09,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-11-12 02:10:09,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:09,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:09,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:09,866 INFO L175 Difference]: Start difference. First operand has 64 places, 75 transitions, 294 flow. Second operand 3 states and 398 transitions. [2023-11-12 02:10:09,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 97 transitions, 483 flow [2023-11-12 02:10:09,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 97 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:10:09,880 INFO L231 Difference]: Finished difference. Result has 66 places, 80 transitions, 342 flow [2023-11-12 02:10:09,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=66, PETRI_TRANSITIONS=80} [2023-11-12 02:10:09,881 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2023-11-12 02:10:09,882 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 80 transitions, 342 flow [2023-11-12 02:10:09,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:09,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:09,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:09,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:10:09,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 02:10:09,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:09,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1363492139, now seen corresponding path program 1 times [2023-11-12 02:10:09,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:09,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647383060] [2023-11-12 02:10:09,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:09,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:09,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:09,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:09,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647383060] [2023-11-12 02:10:09,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647383060] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:10:09,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039589803] [2023-11-12 02:10:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:09,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:10:09,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:09,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:10:09,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:10:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:10,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:10:10,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:10,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:10:10,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039589803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:10,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:10:10,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-12 02:10:10,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289509508] [2023-11-12 02:10:10,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:10,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:10:10,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:10,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:10:10,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:10:10,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 213 [2023-11-12 02:10:10,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 80 transitions, 342 flow. Second operand has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:10,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:10,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 213 [2023-11-12 02:10:10,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:11,361 INFO L124 PetriNetUnfolderBase]: 3447/7641 cut-off events. [2023-11-12 02:10:11,361 INFO L125 PetriNetUnfolderBase]: For 3349/3956 co-relation queries the response was YES. [2023-11-12 02:10:11,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18030 conditions, 7641 events. 3447/7641 cut-off events. For 3349/3956 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 67126 event pairs, 909 based on Foata normal form. 201/7226 useless extension candidates. Maximal degree in co-relation 10121. Up to 2240 conditions per place. [2023-11-12 02:10:11,428 INFO L140 encePairwiseOnDemand]: 205/213 looper letters, 104 selfloop transitions, 16 changer transitions 3/168 dead transitions. [2023-11-12 02:10:11,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 168 transitions, 895 flow [2023-11-12 02:10:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:10:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:10:11,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 907 transitions. [2023-11-12 02:10:11,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.608316566063045 [2023-11-12 02:10:11,433 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 907 transitions. [2023-11-12 02:10:11,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 907 transitions. [2023-11-12 02:10:11,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:11,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 907 transitions. [2023-11-12 02:10:11,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.57142857142858) internal successors, (907), 7 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:11,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:11,442 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:11,442 INFO L175 Difference]: Start difference. First operand has 66 places, 80 transitions, 342 flow. Second operand 7 states and 907 transitions. [2023-11-12 02:10:11,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 168 transitions, 895 flow [2023-11-12 02:10:11,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 168 transitions, 865 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:10:11,452 INFO L231 Difference]: Finished difference. Result has 73 places, 95 transitions, 426 flow [2023-11-12 02:10:11,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=426, PETRI_PLACES=73, PETRI_TRANSITIONS=95} [2023-11-12 02:10:11,453 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2023-11-12 02:10:11,453 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 95 transitions, 426 flow [2023-11-12 02:10:11,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:11,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:11,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:11,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:11,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:10:11,660 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 02:10:11,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:11,661 INFO L85 PathProgramCache]: Analyzing trace with hash 29023669, now seen corresponding path program 1 times [2023-11-12 02:10:11,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:11,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636117071] [2023-11-12 02:10:11,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:11,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:11,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:11,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636117071] [2023-11-12 02:10:11,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636117071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:11,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:11,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:11,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680070735] [2023-11-12 02:10:11,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:11,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:11,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:11,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:11,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:11,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 213 [2023-11-12 02:10:11,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 95 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:11,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:11,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 213 [2023-11-12 02:10:11,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:12,164 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][22], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 166#(<= 0 ~threads_alive~0), 72#L704-1true, 9#L690-1true, Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 37#L692-2true, 162#(<= 1 ~threads_alive~0), threadThread2of2ForFork0InUse, Black: 135#true, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 227#true, Black: 148#(= |#race~data~0| 0), Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-12 02:10:12,165 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-12 02:10:12,165 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:10:12,165 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:10:12,165 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:10:12,165 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][22], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 166#(<= 0 ~threads_alive~0), 72#L704-1true, Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 37#L692-2true, 162#(<= 1 ~threads_alive~0), threadThread2of2ForFork0InUse, Black: 135#true, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 227#true, Black: 148#(= |#race~data~0| 0), 64#L690-3true, Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-12 02:10:12,165 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-12 02:10:12,166 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-12 02:10:12,166 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-12 02:10:12,166 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-12 02:10:12,168 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][22], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 166#(<= 0 ~threads_alive~0), 72#L704-1true, Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 37#L692-2true, 162#(<= 1 ~threads_alive~0), threadThread2of2ForFork0InUse, 41#L690-5true, Black: 135#true, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 227#true, Black: 148#(= |#race~data~0| 0), Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-12 02:10:12,168 INFO L294 olderBase$Statistics]: this new event has 34 ancestors and is cut-off event [2023-11-12 02:10:12,169 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-12 02:10:12,169 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-12 02:10:12,169 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-12 02:10:12,208 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([419] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][22], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 166#(<= 0 ~threads_alive~0), 72#L704-1true, 113#L691true, Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 37#L692-2true, 162#(<= 1 ~threads_alive~0), threadThread2of2ForFork0InUse, Black: 135#true, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 227#true, Black: 148#(= |#race~data~0| 0), Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-12 02:10:12,209 INFO L294 olderBase$Statistics]: this new event has 35 ancestors and is cut-off event [2023-11-12 02:10:12,209 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-12 02:10:12,209 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:10:12,209 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:10:12,814 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([547] L705-1-->ULTIMATE.startEXIT: Formula: (and (= |v_ULTIMATE.start_main_#res#1_22| |v_ULTIMATE.start_#t~ret13#1_8|) (= |v_ULTIMATE.start_main_#res#1_22| v_~data~0_34)) InVars {~data~0=v_~data~0_34} OutVars{ULTIMATE.start_main_#t~post6#1=|v_ULTIMATE.start_main_#t~post6#1_50|, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_34|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_52|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_22|, ULTIMATE.start_main_~#tid~0#1.offset=|v_ULTIMATE.start_main_~#tid~0#1.offset_95|, ULTIMATE.start_main_~#tid~0#1.base=|v_ULTIMATE.start_main_~#tid~0#1.base_101|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_85|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_43|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_48|, ULTIMATE.start_main_#t~post7#1=|v_ULTIMATE.start_main_#t~post7#1_36|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_50|, ULTIMATE.start_main_~threads_total~0#1=|v_ULTIMATE.start_main_~threads_total~0#1_49|, ULTIMATE.start_main_#t~ret12#1=|v_ULTIMATE.start_main_#t~ret12#1_55|, ULTIMATE.start_#t~ret13#1=|v_ULTIMATE.start_#t~ret13#1_8|, ~data~0=v_~data~0_34} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post6#1, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_~#tid~0#1.offset, ULTIMATE.start_main_~#tid~0#1.base, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~post7#1, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_~threads_total~0#1, ULTIMATE.start_main_#t~ret12#1, ULTIMATE.start_#t~ret13#1][75], [Black: 220#(and (<= 0 |ULTIMATE.start_main_#t~post7#1|) (<= 0 ~threads_alive~0)), Black: 176#(<= 0 |ULTIMATE.start_main_#t~post7#1|), threadThread1of2ForFork0InUse, 2#ULTIMATE.startEXITtrue, threadThread2of2ForFork0InUse, 166#(<= 0 ~threads_alive~0), Black: 135#true, 5#threadEXITtrue, Black: 143#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet8#1|), 106#L692-1true, 227#true, Black: 146#true, Black: 154#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|)]) [2023-11-12 02:10:12,814 INFO L294 olderBase$Statistics]: this new event has 43 ancestors and is cut-off event [2023-11-12 02:10:12,815 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-12 02:10:12,815 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-12 02:10:12,815 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-12 02:10:13,130 INFO L124 PetriNetUnfolderBase]: 4478/9265 cut-off events. [2023-11-12 02:10:13,130 INFO L125 PetriNetUnfolderBase]: For 7980/8745 co-relation queries the response was YES. [2023-11-12 02:10:13,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25031 conditions, 9265 events. 4478/9265 cut-off events. For 7980/8745 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 79237 event pairs, 2056 based on Foata normal form. 203/8674 useless extension candidates. Maximal degree in co-relation 21512. Up to 6119 conditions per place. [2023-11-12 02:10:13,202 INFO L140 encePairwiseOnDemand]: 205/213 looper letters, 68 selfloop transitions, 15 changer transitions 0/121 dead transitions. [2023-11-12 02:10:13,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 121 transitions, 709 flow [2023-11-12 02:10:13,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-11-12 02:10:13,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6103286384976526 [2023-11-12 02:10:13,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-11-12 02:10:13,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-11-12 02:10:13,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:13,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-11-12 02:10:13,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:13,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:13,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:13,209 INFO L175 Difference]: Start difference. First operand has 73 places, 95 transitions, 426 flow. Second operand 3 states and 390 transitions. [2023-11-12 02:10:13,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 121 transitions, 709 flow [2023-11-12 02:10:13,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 121 transitions, 709 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:10:13,227 INFO L231 Difference]: Finished difference. Result has 76 places, 106 transitions, 549 flow [2023-11-12 02:10:13,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=549, PETRI_PLACES=76, PETRI_TRANSITIONS=106} [2023-11-12 02:10:13,229 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places. [2023-11-12 02:10:13,229 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 106 transitions, 549 flow [2023-11-12 02:10:13,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:13,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:13,229 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:13,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:10:13,230 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 02:10:13,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:13,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1071481673, now seen corresponding path program 1 times [2023-11-12 02:10:13,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:13,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714161113] [2023-11-12 02:10:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:13,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 02:10:13,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:13,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714161113] [2023-11-12 02:10:13,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714161113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:13,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:13,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:13,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234298656] [2023-11-12 02:10:13,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:13,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:13,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:13,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 213 [2023-11-12 02:10:13,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 106 transitions, 549 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:13,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:13,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 213 [2023-11-12 02:10:13,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:14,464 INFO L124 PetriNetUnfolderBase]: 3885/8288 cut-off events. [2023-11-12 02:10:14,464 INFO L125 PetriNetUnfolderBase]: For 11421/13313 co-relation queries the response was YES. [2023-11-12 02:10:14,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24637 conditions, 8288 events. 3885/8288 cut-off events. For 11421/13313 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 73216 event pairs, 1589 based on Foata normal form. 427/7852 useless extension candidates. Maximal degree in co-relation 20622. Up to 4624 conditions per place. [2023-11-12 02:10:14,537 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 70 selfloop transitions, 6 changer transitions 0/132 dead transitions. [2023-11-12 02:10:14,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 132 transitions, 823 flow [2023-11-12 02:10:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:10:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:10:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-11-12 02:10:14,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.621283255086072 [2023-11-12 02:10:14,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-11-12 02:10:14,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-11-12 02:10:14,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:14,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-11-12 02:10:14,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:14,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:14,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:14,544 INFO L175 Difference]: Start difference. First operand has 76 places, 106 transitions, 549 flow. Second operand 3 states and 397 transitions. [2023-11-12 02:10:14,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 132 transitions, 823 flow [2023-11-12 02:10:14,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 132 transitions, 806 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:10:14,566 INFO L231 Difference]: Finished difference. Result has 78 places, 109 transitions, 574 flow [2023-11-12 02:10:14,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=78, PETRI_TRANSITIONS=109} [2023-11-12 02:10:14,567 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 21 predicate places. [2023-11-12 02:10:14,567 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 109 transitions, 574 flow [2023-11-12 02:10:14,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:14,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:14,568 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:14,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:10:14,568 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 02:10:14,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:14,569 INFO L85 PathProgramCache]: Analyzing trace with hash -2129836717, now seen corresponding path program 1 times [2023-11-12 02:10:14,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:14,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151290097] [2023-11-12 02:10:14,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:14,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:14,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:14,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:14,603 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:10:14,603 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-12 02:10:14,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-12 02:10:14,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-12 02:10:14,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-12 02:10:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-12 02:10:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-12 02:10:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-12 02:10:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-12 02:10:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-12 02:10:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-12 02:10:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-12 02:10:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-12 02:10:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-12 02:10:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-12 02:10:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-12 02:10:14,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:10:14,606 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:14,610 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-12 02:10:14,611 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:10:14,636 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-12 02:10:14,637 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-12 02:10:14,637 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 02:10:14,638 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-12 02:10:14,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:10:14 BasicIcfg [2023-11-12 02:10:14,646 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:10:14,646 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:10:14,646 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:10:14,647 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:10:14,647 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:00" (3/4) ... [2023-11-12 02:10:14,649 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:10:14,650 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:10:14,650 INFO L158 Benchmark]: Toolchain (without parser) took 15652.33ms. Allocated memory was 161.5MB in the beginning and 759.2MB in the end (delta: 597.7MB). Free memory was 118.0MB in the beginning and 333.8MB in the end (delta: -215.7MB). Peak memory consumption was 384.3MB. Max. memory is 16.1GB. [2023-11-12 02:10:14,651 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:10:14,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.37ms. Allocated memory is still 161.5MB. Free memory was 117.7MB in the beginning and 98.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:10:14,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.95ms. Allocated memory is still 161.5MB. Free memory was 98.8MB in the beginning and 96.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:10:14,652 INFO L158 Benchmark]: Boogie Preprocessor took 32.17ms. Allocated memory is still 161.5MB. Free memory was 96.7MB in the beginning and 95.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:10:14,652 INFO L158 Benchmark]: RCFGBuilder took 494.64ms. Allocated memory is still 161.5MB. Free memory was 95.0MB in the beginning and 127.2MB in the end (delta: -32.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:10:14,653 INFO L158 Benchmark]: TraceAbstraction took 14429.77ms. Allocated memory was 161.5MB in the beginning and 759.2MB in the end (delta: 597.7MB). Free memory was 126.6MB in the beginning and 333.8MB in the end (delta: -207.1MB). Peak memory consumption was 393.4MB. Max. memory is 16.1GB. [2023-11-12 02:10:14,653 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 759.2MB. Free memory is still 333.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:10:14,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 630.37ms. Allocated memory is still 161.5MB. Free memory was 117.7MB in the beginning and 98.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.95ms. Allocated memory is still 161.5MB. Free memory was 98.8MB in the beginning and 96.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.17ms. Allocated memory is still 161.5MB. Free memory was 96.7MB in the beginning and 95.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 494.64ms. Allocated memory is still 161.5MB. Free memory was 95.0MB in the beginning and 127.2MB in the end (delta: -32.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14429.77ms. Allocated memory was 161.5MB in the beginning and 759.2MB in the end (delta: 597.7MB). Free memory was 126.6MB in the beginning and 333.8MB in the end (delta: -207.1MB). Peak memory consumption was 393.4MB. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 759.2MB. Free memory is still 333.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 103 PlacesBefore, 37 PlacesAfterwards, 104 TransitionsBefore, 36 TransitionsAfterwards, 2652 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 8163 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3710, independent: 3380, independent conditional: 0, independent unconditional: 3380, dependent: 330, dependent conditional: 0, dependent unconditional: 330, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1306, independent: 1260, independent conditional: 0, independent unconditional: 1260, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3710, independent: 2120, independent conditional: 0, independent unconditional: 2120, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 1306, unknown conditional: 0, unknown unconditional: 1306] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 132 PlacesBefore, 57 PlacesAfterwards, 131 TransitionsBefore, 54 TransitionsAfterwards, 6708 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 24740 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8486, independent: 7957, independent conditional: 0, independent unconditional: 7957, dependent: 529, dependent conditional: 0, dependent unconditional: 529, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3217, independent: 3136, independent conditional: 0, independent unconditional: 3136, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8486, independent: 4821, independent conditional: 0, independent unconditional: 4821, dependent: 448, dependent conditional: 0, dependent unconditional: 448, unknown: 3217, unknown conditional: 0, unknown unconditional: 3217] , Statistics on independence cache: Total cache size (in pairs): 485, Positive cache size: 433, Positive conditional cache size: 0, Positive unconditional cache size: 433, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 692]: Data race detected [2023-11-12 02:10:14,673 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-12 02:10:14,674 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-12 02:10:14,674 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-12 02:10:14,674 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 02:10:14,686 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-12 02:10:14,686 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-12 02:10:14,687 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 02:10:14,687 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; [L686] 0 int data = 0; [L687] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 int threads_total = __VERIFIER_nondet_int(); [L697] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) [L697] RET 0 assume_abort_if_not(threads_total >= 0) [L698] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=2] [L698] COND TRUE 0 i < threads_total [L699] 0 threads_alive++ [L700] 0 pthread_t tid; [L701] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L702] EXPR 0 \read(tid) [L702] 0 pthread_detach(tid) [L698] 0 i++ [L698] COND TRUE 0 i < threads_total [L699] 0 threads_alive++ VAL [arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=2, threads_total=2] [L690] 1 data = __VERIFIER_nondet_int() [L692] 1 threads_alive-- VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=2] [L699] 0 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=2, threads_total=2] [L692] 1 threads_alive-- VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=2] Now there is a data race on ~threads_alive~0 between C: threads_alive++ [699] and C: threads_alive-- [692] - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 128 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 50 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 155 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.5s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 661 IncrementalHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 22 mSDtfsCounter, 661 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=7, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 2 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 8/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:10:14,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e261719-609d-49e2-8211-4416abd25ded/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE