./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-theta/unwind3-nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-theta/unwind3-nondet.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB --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 2d10f4791070edb44c97ab9948c6a47d7a3edd4f9cb75d429f64896be7b2f789 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:13:13,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:13:13,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:13:13,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:13:13,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:13:13,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:13:13,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:13:13,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:13:13,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:13:13,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:13:13,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:13:13,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:13:13,948 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:13:13,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:13:13,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:13:13,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:13:13,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:13:13,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:13:13,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:13:13,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:13:13,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:13:13,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:13:13,953 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:13:13,953 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:13:13,953 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:13:13,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:13:13,954 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:13:13,954 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:13:13,954 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:13:13,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:13,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:13,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:13,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:13:13,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:13,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:13,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:13,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:13:13,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:13:13,956 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:13:13,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:13:13,956 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:13:13,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:13:13,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:13:13,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:13:13,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:13:13,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:13:13,957 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 2d10f4791070edb44c97ab9948c6a47d7a3edd4f9cb75d429f64896be7b2f789 [2024-11-28 03:13:14,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:13:14,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:13:14,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:13:14,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:13:14,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:13:14,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-theta/unwind3-nondet.i [2024-11-28 03:13:17,922 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/data/74f16c3e6/5a209e7a060e46e99a64a90f023ad052/FLAGa05acb808 [2024-11-28 03:13:18,385 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:13:18,386 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/sv-benchmarks/c/pthread-theta/unwind3-nondet.i [2024-11-28 03:13:18,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/data/74f16c3e6/5a209e7a060e46e99a64a90f023ad052/FLAGa05acb808 [2024-11-28 03:13:18,442 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/data/74f16c3e6/5a209e7a060e46e99a64a90f023ad052 [2024-11-28 03:13:18,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:13:18,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:13:18,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:18,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:13:18,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:13:18,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:18" (1/1) ... [2024-11-28 03:13:18,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b74606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:18, skipping insertion in model container [2024-11-28 03:13:18,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:18" (1/1) ... [2024-11-28 03:13:18,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:13:18,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:18,949 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:13:19,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:19,067 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:13:19,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19 WrapperNode [2024-11-28 03:13:19,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:19,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:19,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:13:19,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:13:19,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,120 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 85 [2024-11-28 03:13:19,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:19,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:13:19,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:13:19,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:13:19,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,145 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:13:19,166 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:13:19,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:13:19,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:13:19,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (1/1) ... [2024-11-28 03:13:19,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:19,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:19,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:13:19,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5059db04-0da4-45bf-8262-19ebb8d564be/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:13:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:13:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-28 03:13:19,253 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-28 03:13:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-28 03:13:19,253 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-28 03:13:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:13:19,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:13:19,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:13:19,256 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:13:19,400 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:13:19,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:13:19,667 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:13:19,667 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:13:19,696 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:13:19,696 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:13:19,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:19 BoogieIcfgContainer [2024-11-28 03:13:19,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:13:19,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:13:19,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:13:19,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:13:19,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:13:18" (1/3) ... [2024-11-28 03:13:19,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7ce2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:19, skipping insertion in model container [2024-11-28 03:13:19,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:19" (2/3) ... [2024-11-28 03:13:19,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7ce2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:19, skipping insertion in model container [2024-11-28 03:13:19,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:19" (3/3) ... [2024-11-28 03:13:19,711 INFO L128 eAbstractionObserver]: Analyzing ICFG unwind3-nondet.i [2024-11-28 03:13:19,730 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:13:19,732 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind3-nondet.i that has 3 procedures, 102 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2024-11-28 03:13:19,732 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:13:19,840 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:19,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 109 transitions, 226 flow [2024-11-28 03:13:19,984 INFO L124 PetriNetUnfolderBase]: 12/159 cut-off events. [2024-11-28 03:13:19,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:19,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 12/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 259 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 96. Up to 4 conditions per place. [2024-11-28 03:13:19,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 109 transitions, 226 flow [2024-11-28 03:13:19,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 92 transitions, 191 flow [2024-11-28 03:13:20,008 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:20,023 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:20,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 03:13:20,040 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:20,040 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:20,040 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:20,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:20,041 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:20,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:13:20,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1038537050, now seen corresponding path program 1 times [2024-11-28 03:13:20,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:20,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975064372] [2024-11-28 03:13:20,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:20,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:20,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:20,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975064372] [2024-11-28 03:13:20,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975064372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:20,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:20,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:20,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910421398] [2024-11-28 03:13:20,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:20,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:20,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:20,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:20,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:20,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2024-11-28 03:13:20,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 92 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:20,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:20,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2024-11-28 03:13:20,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:20,563 INFO L124 PetriNetUnfolderBase]: 5/127 cut-off events. [2024-11-28 03:13:20,564 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 03:13:20,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 127 events. 5/127 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 183 event pairs, 2 based on Foata normal form. 3/117 useless extension candidates. Maximal degree in co-relation 96. Up to 20 conditions per place. [2024-11-28 03:13:20,566 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 11 selfloop transitions, 2 changer transitions 1/88 dead transitions. [2024-11-28 03:13:20,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 88 transitions, 209 flow [2024-11-28 03:13:20,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-28 03:13:20,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8685015290519877 [2024-11-28 03:13:20,586 INFO L175 Difference]: Start difference. First operand has 93 places, 92 transitions, 191 flow. Second operand 3 states and 284 transitions. [2024-11-28 03:13:20,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 88 transitions, 209 flow [2024-11-28 03:13:20,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 88 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:20,600 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 184 flow [2024-11-28 03:13:20,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=93, PETRI_TRANSITIONS=87} [2024-11-28 03:13:20,612 INFO L279 CegarLoopForPetriNet]: 93 programPoint places, 0 predicate places. [2024-11-28 03:13:20,613 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 184 flow [2024-11-28 03:13:20,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:20,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:20,613 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:20,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:13:20,614 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:13:20,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1620030706, now seen corresponding path program 1 times [2024-11-28 03:13:20,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:20,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231104689] [2024-11-28 03:13:20,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:20,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:20,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:20,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:20,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231104689] [2024-11-28 03:13:20,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231104689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:20,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:20,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:20,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138524661] [2024-11-28 03:13:20,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:20,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:20,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:20,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:20,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:20,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 109 [2024-11-28 03:13:20,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:20,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:20,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 109 [2024-11-28 03:13:20,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:20,828 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2024-11-28 03:13:20,828 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:13:20,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 113 events. 3/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2024-11-28 03:13:20,829 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 9 selfloop transitions, 1 changer transitions 24/82 dead transitions. [2024-11-28 03:13:20,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 82 transitions, 198 flow [2024-11-28 03:13:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:20,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:20,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2024-11-28 03:13:20,832 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8318042813455657 [2024-11-28 03:13:20,832 INFO L175 Difference]: Start difference. First operand has 93 places, 87 transitions, 184 flow. Second operand 3 states and 272 transitions. [2024-11-28 03:13:20,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 82 transitions, 198 flow [2024-11-28 03:13:20,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 82 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:20,836 INFO L231 Difference]: Finished difference. Result has 87 places, 58 transitions, 122 flow [2024-11-28 03:13:20,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=87, PETRI_TRANSITIONS=58} [2024-11-28 03:13:20,837 INFO L279 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places. [2024-11-28 03:13:20,837 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 58 transitions, 122 flow [2024-11-28 03:13:20,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:20,838 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:20,838 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:20,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:13:20,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:13:20,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:20,839 INFO L85 PathProgramCache]: Analyzing trace with hash -170148897, now seen corresponding path program 1 times [2024-11-28 03:13:20,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493967934] [2024-11-28 03:13:20,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:20,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:21,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:21,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:21,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493967934] [2024-11-28 03:13:21,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493967934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:21,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:21,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:21,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941887923] [2024-11-28 03:13:21,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:21,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:21,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:21,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:21,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:21,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 109 [2024-11-28 03:13:21,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 58 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:21,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:21,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 109 [2024-11-28 03:13:21,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:21,289 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2024-11-28 03:13:21,290 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:13:21,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 78 events. 0/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 39 event pairs, 0 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2024-11-28 03:13:21,290 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 9 selfloop transitions, 2 changer transitions 3/60 dead transitions. [2024-11-28 03:13:21,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 60 transitions, 154 flow [2024-11-28 03:13:21,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2024-11-28 03:13:21,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8348623853211009 [2024-11-28 03:13:21,294 INFO L175 Difference]: Start difference. First operand has 87 places, 58 transitions, 122 flow. Second operand 5 states and 455 transitions. [2024-11-28 03:13:21,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 60 transitions, 154 flow [2024-11-28 03:13:21,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:21,297 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 127 flow [2024-11-28 03:13:21,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=127, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2024-11-28 03:13:21,303 INFO L279 CegarLoopForPetriNet]: 93 programPoint places, -26 predicate places. [2024-11-28 03:13:21,304 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 127 flow [2024-11-28 03:13:21,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:21,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:21,304 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:21,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:13:21,305 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:13:21,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1245535641, now seen corresponding path program 1 times [2024-11-28 03:13:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:21,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442483293] [2024-11-28 03:13:21,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:21,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:21,372 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:21,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:21,438 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:21,441 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-28 03:13:21,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-28 03:13:21,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-28 03:13:21,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-28 03:13:21,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-28 03:13:21,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-28 03:13:21,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2024-11-28 03:13:21,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-28 03:13:21,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-28 03:13:21,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:13:21,445 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:21,448 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:21,448 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:13:21,494 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:21,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 146 transitions, 312 flow [2024-11-28 03:13:21,540 INFO L124 PetriNetUnfolderBase]: 17/223 cut-off events. [2024-11-28 03:13:21,540 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:13:21,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 223 events. 17/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 470 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 234. Up to 6 conditions per place. [2024-11-28 03:13:21,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 146 transitions, 312 flow [2024-11-28 03:13:21,543 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 99 transitions, 211 flow [2024-11-28 03:13:21,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:21,546 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:21,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-28 03:13:21,549 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:21,549 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:21,549 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:21,549 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:21,549 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:21,550 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 03:13:21,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:21,550 INFO L85 PathProgramCache]: Analyzing trace with hash 393609382, now seen corresponding path program 1 times [2024-11-28 03:13:21,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:21,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079788660] [2024-11-28 03:13:21,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:21,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:21,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:21,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079788660] [2024-11-28 03:13:21,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079788660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:21,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:21,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:21,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262267961] [2024-11-28 03:13:21,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:21,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:21,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:21,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:21,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:21,680 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2024-11-28 03:13:21,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 99 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:21,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:21,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2024-11-28 03:13:21,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:21,753 INFO L124 PetriNetUnfolderBase]: 7/176 cut-off events. [2024-11-28 03:13:21,753 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-28 03:13:21,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 176 events. 7/176 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 316 event pairs, 3 based on Foata normal form. 4/163 useless extension candidates. Maximal degree in co-relation 153. Up to 27 conditions per place. [2024-11-28 03:13:21,755 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 12 selfloop transitions, 2 changer transitions 1/95 dead transitions. [2024-11-28 03:13:21,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 231 flow [2024-11-28 03:13:21,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2024-11-28 03:13:21,758 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8561643835616438 [2024-11-28 03:13:21,758 INFO L175 Difference]: Start difference. First operand has 102 places, 99 transitions, 211 flow. Second operand 3 states and 375 transitions. [2024-11-28 03:13:21,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 231 flow [2024-11-28 03:13:21,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:21,765 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 204 flow [2024-11-28 03:13:21,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2024-11-28 03:13:21,767 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2024-11-28 03:13:21,768 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 204 flow [2024-11-28 03:13:21,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:21,768 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:21,768 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:21,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:13:21,769 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 03:13:21,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:21,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1985524110, now seen corresponding path program 1 times [2024-11-28 03:13:21,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:21,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345868529] [2024-11-28 03:13:21,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:21,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:21,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:21,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345868529] [2024-11-28 03:13:21,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345868529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:21,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:21,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:21,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037334050] [2024-11-28 03:13:21,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:21,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:21,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:21,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:21,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:21,865 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 146 [2024-11-28 03:13:21,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:21,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:21,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 146 [2024-11-28 03:13:21,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:21,916 INFO L124 PetriNetUnfolderBase]: 4/157 cut-off events. [2024-11-28 03:13:21,917 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 03:13:21,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 157 events. 4/157 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 234 event pairs, 0 based on Foata normal form. 3/153 useless extension candidates. Maximal degree in co-relation 170. Up to 20 conditions per place. [2024-11-28 03:13:21,918 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 10 selfloop transitions, 1 changer transitions 24/89 dead transitions. [2024-11-28 03:13:21,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 89 transitions, 220 flow [2024-11-28 03:13:21,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-11-28 03:13:21,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.815068493150685 [2024-11-28 03:13:21,922 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 204 flow. Second operand 3 states and 357 transitions. [2024-11-28 03:13:21,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 89 transitions, 220 flow [2024-11-28 03:13:21,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 89 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:21,926 INFO L231 Difference]: Finished difference. Result has 96 places, 65 transitions, 142 flow [2024-11-28 03:13:21,927 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=96, PETRI_TRANSITIONS=65} [2024-11-28 03:13:21,928 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, -6 predicate places. [2024-11-28 03:13:21,928 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 65 transitions, 142 flow [2024-11-28 03:13:21,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:21,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:21,929 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:21,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:13:21,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 03:13:21,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:21,930 INFO L85 PathProgramCache]: Analyzing trace with hash 360577966, now seen corresponding path program 1 times [2024-11-28 03:13:21,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:21,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791459823] [2024-11-28 03:13:21,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:21,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:22,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:22,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791459823] [2024-11-28 03:13:22,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791459823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:22,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:22,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:22,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793540788] [2024-11-28 03:13:22,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:22,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:22,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:22,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:22,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:22,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2024-11-28 03:13:22,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 65 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:22,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:22,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2024-11-28 03:13:22,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:22,300 INFO L124 PetriNetUnfolderBase]: 0/98 cut-off events. [2024-11-28 03:13:22,302 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:13:22,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 98 events. 0/98 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 52 event pairs, 0 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2024-11-28 03:13:22,303 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 10 selfloop transitions, 2 changer transitions 3/67 dead transitions. [2024-11-28 03:13:22,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 176 flow [2024-11-28 03:13:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:22,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:22,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2024-11-28 03:13:22,308 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.836986301369863 [2024-11-28 03:13:22,309 INFO L175 Difference]: Start difference. First operand has 96 places, 65 transitions, 142 flow. Second operand 5 states and 611 transitions. [2024-11-28 03:13:22,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 176 flow [2024-11-28 03:13:22,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:22,311 INFO L231 Difference]: Finished difference. Result has 76 places, 64 transitions, 147 flow [2024-11-28 03:13:22,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=76, PETRI_TRANSITIONS=64} [2024-11-28 03:13:22,315 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, -26 predicate places. [2024-11-28 03:13:22,315 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 147 flow [2024-11-28 03:13:22,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:22,317 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:22,318 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:22,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:13:22,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 03:13:22,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:22,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1088130262, now seen corresponding path program 1 times [2024-11-28 03:13:22,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:22,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093233159] [2024-11-28 03:13:22,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:22,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:22,364 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:22,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:22,398 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:22,398 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-28 03:13:22,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-28 03:13:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-28 03:13:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-28 03:13:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-28 03:13:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-28 03:13:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-11-28 03:13:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-28 03:13:22,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-28 03:13:22,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-28 03:13:22,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:13:22,400 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:22,401 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:22,401 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 03:13:22,462 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:22,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 183 transitions, 402 flow [2024-11-28 03:13:22,524 INFO L124 PetriNetUnfolderBase]: 22/287 cut-off events. [2024-11-28 03:13:22,524 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 03:13:22,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 287 events. 22/287 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 657 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 304. Up to 8 conditions per place. [2024-11-28 03:13:22,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 183 transitions, 402 flow [2024-11-28 03:13:22,527 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 106 transitions, 233 flow [2024-11-28 03:13:22,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:22,533 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:22,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-28 03:13:22,536 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:22,540 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:22,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:22,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:22,540 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:22,541 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:13:22,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:22,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1776850854, now seen corresponding path program 1 times [2024-11-28 03:13:22,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:22,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825009805] [2024-11-28 03:13:22,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:22,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:22,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:22,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:22,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825009805] [2024-11-28 03:13:22,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825009805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:22,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:22,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:22,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893862346] [2024-11-28 03:13:22,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:22,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:22,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:22,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:22,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:22,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 183 [2024-11-28 03:13:22,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:22,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:22,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 183 [2024-11-28 03:13:22,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:22,787 INFO L124 PetriNetUnfolderBase]: 9/225 cut-off events. [2024-11-28 03:13:22,788 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-28 03:13:22,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 225 events. 9/225 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 469 event pairs, 4 based on Foata normal form. 9/213 useless extension candidates. Maximal degree in co-relation 214. Up to 34 conditions per place. [2024-11-28 03:13:22,790 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 13 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2024-11-28 03:13:22,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 102 transitions, 255 flow [2024-11-28 03:13:22,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:22,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-28 03:13:22,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.848816029143898 [2024-11-28 03:13:22,798 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 233 flow. Second operand 3 states and 466 transitions. [2024-11-28 03:13:22,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 102 transitions, 255 flow [2024-11-28 03:13:22,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 102 transitions, 252 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:22,802 INFO L231 Difference]: Finished difference. Result has 111 places, 101 transitions, 224 flow [2024-11-28 03:13:22,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=111, PETRI_TRANSITIONS=101} [2024-11-28 03:13:22,804 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, 0 predicate places. [2024-11-28 03:13:22,805 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 101 transitions, 224 flow [2024-11-28 03:13:22,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:22,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:22,806 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:22,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:13:22,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:13:22,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1879196082, now seen corresponding path program 1 times [2024-11-28 03:13:22,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:22,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954320093] [2024-11-28 03:13:22,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:22,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954320093] [2024-11-28 03:13:22,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954320093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:22,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:22,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:22,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088248017] [2024-11-28 03:13:22,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:22,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:22,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:22,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:22,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:22,905 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 183 [2024-11-28 03:13:22,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 101 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:22,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:22,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 183 [2024-11-28 03:13:22,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:22,959 INFO L124 PetriNetUnfolderBase]: 5/201 cut-off events. [2024-11-28 03:13:22,960 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 03:13:22,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 201 events. 5/201 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 341 event pairs, 0 based on Foata normal form. 4/196 useless extension candidates. Maximal degree in co-relation 224. Up to 25 conditions per place. [2024-11-28 03:13:22,964 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 11 selfloop transitions, 1 changer transitions 24/96 dead transitions. [2024-11-28 03:13:22,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 96 transitions, 242 flow [2024-11-28 03:13:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:22,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2024-11-28 03:13:22,966 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8051001821493625 [2024-11-28 03:13:22,967 INFO L175 Difference]: Start difference. First operand has 111 places, 101 transitions, 224 flow. Second operand 3 states and 442 transitions. [2024-11-28 03:13:22,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 96 transitions, 242 flow [2024-11-28 03:13:22,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 96 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:22,971 INFO L231 Difference]: Finished difference. Result has 105 places, 72 transitions, 162 flow [2024-11-28 03:13:22,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=105, PETRI_TRANSITIONS=72} [2024-11-28 03:13:22,971 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -6 predicate places. [2024-11-28 03:13:22,972 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 72 transitions, 162 flow [2024-11-28 03:13:22,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:22,974 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:22,974 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:22,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:13:22,974 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:13:22,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:22,977 INFO L85 PathProgramCache]: Analyzing trace with hash -367865525, now seen corresponding path program 1 times [2024-11-28 03:13:22,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:22,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989725352] [2024-11-28 03:13:22,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:22,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:23,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:23,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:23,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989725352] [2024-11-28 03:13:23,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989725352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:23,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:23,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:23,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012748776] [2024-11-28 03:13:23,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:23,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:23,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:23,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:23,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:23,280 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 183 [2024-11-28 03:13:23,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 72 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 152.6) internal successors, (763), 5 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:23,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:23,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 183 [2024-11-28 03:13:23,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:23,328 INFO L124 PetriNetUnfolderBase]: 0/118 cut-off events. [2024-11-28 03:13:23,328 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-28 03:13:23,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 118 events. 0/118 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 63 event pairs, 0 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2024-11-28 03:13:23,329 INFO L140 encePairwiseOnDemand]: 178/183 looper letters, 11 selfloop transitions, 2 changer transitions 3/74 dead transitions. [2024-11-28 03:13:23,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 198 flow [2024-11-28 03:13:23,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:23,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:23,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 767 transitions. [2024-11-28 03:13:23,332 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8382513661202186 [2024-11-28 03:13:23,332 INFO L175 Difference]: Start difference. First operand has 105 places, 72 transitions, 162 flow. Second operand 5 states and 767 transitions. [2024-11-28 03:13:23,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 198 flow [2024-11-28 03:13:23,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 74 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:23,335 INFO L231 Difference]: Finished difference. Result has 85 places, 71 transitions, 167 flow [2024-11-28 03:13:23,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=167, PETRI_PLACES=85, PETRI_TRANSITIONS=71} [2024-11-28 03:13:23,337 INFO L279 CegarLoopForPetriNet]: 111 programPoint places, -26 predicate places. [2024-11-28 03:13:23,337 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 71 transitions, 167 flow [2024-11-28 03:13:23,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 152.6) internal successors, (763), 5 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:23,338 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:23,338 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:23,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:13:23,339 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:13:23,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:23,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2013043004, now seen corresponding path program 1 times [2024-11-28 03:13:23,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:23,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824770026] [2024-11-28 03:13:23,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:23,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:23,377 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:23,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:23,421 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:23,421 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-28 03:13:23,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-28 03:13:23,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-28 03:13:23,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-28 03:13:23,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-28 03:13:23,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-28 03:13:23,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2024-11-28 03:13:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-28 03:13:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-28 03:13:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-28 03:13:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-28 03:13:23,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:13:23,424 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:23,425 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:23,425 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 03:13:23,503 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:23,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 220 transitions, 496 flow [2024-11-28 03:13:23,587 INFO L124 PetriNetUnfolderBase]: 27/351 cut-off events. [2024-11-28 03:13:23,587 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-28 03:13:23,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 351 events. 27/351 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 859 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 375. Up to 10 conditions per place. [2024-11-28 03:13:23,589 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 220 transitions, 496 flow [2024-11-28 03:13:23,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 113 transitions, 257 flow [2024-11-28 03:13:23,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:23,593 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:23,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-28 03:13:23,596 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:23,597 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:23,601 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:23,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:23,601 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:23,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 03:13:23,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:23,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1183779930, now seen corresponding path program 1 times [2024-11-28 03:13:23,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:23,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929676941] [2024-11-28 03:13:23,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:23,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:23,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:23,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:23,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929676941] [2024-11-28 03:13:23,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929676941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:23,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:23,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:23,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494372596] [2024-11-28 03:13:23,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:23,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:23,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:23,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:23,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:23,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 220 [2024-11-28 03:13:23,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 113 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:23,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:23,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 220 [2024-11-28 03:13:23,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:23,806 INFO L124 PetriNetUnfolderBase]: 11/274 cut-off events. [2024-11-28 03:13:23,806 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-28 03:13:23,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 274 events. 11/274 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 608 event pairs, 5 based on Foata normal form. 11/260 useless extension candidates. Maximal degree in co-relation 276. Up to 41 conditions per place. [2024-11-28 03:13:23,808 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 14 selfloop transitions, 2 changer transitions 1/109 dead transitions. [2024-11-28 03:13:23,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 109 transitions, 281 flow [2024-11-28 03:13:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-28 03:13:23,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.843939393939394 [2024-11-28 03:13:23,811 INFO L175 Difference]: Start difference. First operand has 120 places, 113 transitions, 257 flow. Second operand 3 states and 557 transitions. [2024-11-28 03:13:23,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 109 transitions, 281 flow [2024-11-28 03:13:23,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 109 transitions, 274 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:23,816 INFO L231 Difference]: Finished difference. Result has 120 places, 108 transitions, 244 flow [2024-11-28 03:13:23,817 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=120, PETRI_TRANSITIONS=108} [2024-11-28 03:13:23,819 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2024-11-28 03:13:23,820 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 108 transitions, 244 flow [2024-11-28 03:13:23,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:23,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:23,820 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:23,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:13:23,821 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 03:13:23,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:23,821 INFO L85 PathProgramCache]: Analyzing trace with hash -329289394, now seen corresponding path program 1 times [2024-11-28 03:13:23,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:23,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195595914] [2024-11-28 03:13:23,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:23,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:23,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:23,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195595914] [2024-11-28 03:13:23,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195595914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:23,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:23,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:23,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277484523] [2024-11-28 03:13:23,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:23,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:23,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:23,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:23,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:23,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 220 [2024-11-28 03:13:23,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 108 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:23,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:23,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 220 [2024-11-28 03:13:23,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:24,010 INFO L124 PetriNetUnfolderBase]: 6/245 cut-off events. [2024-11-28 03:13:24,011 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-28 03:13:24,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 245 events. 6/245 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 443 event pairs, 0 based on Foata normal form. 5/239 useless extension candidates. Maximal degree in co-relation 278. Up to 30 conditions per place. [2024-11-28 03:13:24,012 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 12 selfloop transitions, 1 changer transitions 24/103 dead transitions. [2024-11-28 03:13:24,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 103 transitions, 264 flow [2024-11-28 03:13:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:24,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:24,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2024-11-28 03:13:24,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7984848484848485 [2024-11-28 03:13:24,016 INFO L175 Difference]: Start difference. First operand has 120 places, 108 transitions, 244 flow. Second operand 3 states and 527 transitions. [2024-11-28 03:13:24,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 103 transitions, 264 flow [2024-11-28 03:13:24,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 103 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:24,020 INFO L231 Difference]: Finished difference. Result has 114 places, 79 transitions, 182 flow [2024-11-28 03:13:24,020 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=114, PETRI_TRANSITIONS=79} [2024-11-28 03:13:24,022 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, -6 predicate places. [2024-11-28 03:13:24,022 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 79 transitions, 182 flow [2024-11-28 03:13:24,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:24,022 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:24,023 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:24,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:13:24,023 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 03:13:24,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:24,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1597091030, now seen corresponding path program 1 times [2024-11-28 03:13:24,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:24,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023599125] [2024-11-28 03:13:24,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:24,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:24,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:24,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023599125] [2024-11-28 03:13:24,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023599125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:24,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:24,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:24,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380167730] [2024-11-28 03:13:24,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:24,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:24,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:24,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:24,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:24,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 220 [2024-11-28 03:13:24,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 79 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:24,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:24,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 220 [2024-11-28 03:13:24,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:24,444 INFO L124 PetriNetUnfolderBase]: 0/138 cut-off events. [2024-11-28 03:13:24,444 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-28 03:13:24,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 138 events. 0/138 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 75 event pairs, 0 based on Foata normal form. 1/138 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2024-11-28 03:13:24,445 INFO L140 encePairwiseOnDemand]: 215/220 looper letters, 12 selfloop transitions, 2 changer transitions 3/81 dead transitions. [2024-11-28 03:13:24,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 81 transitions, 220 flow [2024-11-28 03:13:24,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:24,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 923 transitions. [2024-11-28 03:13:24,449 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8390909090909091 [2024-11-28 03:13:24,449 INFO L175 Difference]: Start difference. First operand has 114 places, 79 transitions, 182 flow. Second operand 5 states and 923 transitions. [2024-11-28 03:13:24,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 81 transitions, 220 flow [2024-11-28 03:13:24,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 81 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:24,452 INFO L231 Difference]: Finished difference. Result has 94 places, 78 transitions, 187 flow [2024-11-28 03:13:24,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=94, PETRI_TRANSITIONS=78} [2024-11-28 03:13:24,453 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, -26 predicate places. [2024-11-28 03:13:24,453 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 78 transitions, 187 flow [2024-11-28 03:13:24,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:24,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:24,454 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:24,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:13:24,455 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 03:13:24,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 908386603, now seen corresponding path program 1 times [2024-11-28 03:13:24,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:24,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278363470] [2024-11-28 03:13:24,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:24,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:24,486 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:24,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:24,522 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:24,523 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-28 03:13:24,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-28 03:13:24,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-28 03:13:24,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-28 03:13:24,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-28 03:13:24,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-28 03:13:24,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-28 03:13:24,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-28 03:13:24,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-28 03:13:24,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-28 03:13:24,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-28 03:13:24,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-28 03:13:24,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:13:24,527 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:24,527 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:24,527 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-28 03:13:24,610 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:24,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 257 transitions, 594 flow [2024-11-28 03:13:24,697 INFO L124 PetriNetUnfolderBase]: 32/415 cut-off events. [2024-11-28 03:13:24,698 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-28 03:13:24,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 415 events. 32/415 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1036 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 447. Up to 12 conditions per place. [2024-11-28 03:13:24,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 257 transitions, 594 flow [2024-11-28 03:13:24,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 120 transitions, 283 flow [2024-11-28 03:13:24,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:24,704 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:24,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 03:13:24,707 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:24,708 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:24,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:24,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:24,708 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:24,708 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 03:13:24,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash 101651622, now seen corresponding path program 1 times [2024-11-28 03:13:24,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:24,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870984705] [2024-11-28 03:13:24,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:24,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:24,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:24,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870984705] [2024-11-28 03:13:24,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870984705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:24,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:24,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:24,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070847839] [2024-11-28 03:13:24,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:24,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:24,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:24,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:24,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:24,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 257 [2024-11-28 03:13:24,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:24,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:24,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 257 [2024-11-28 03:13:24,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:24,947 INFO L124 PetriNetUnfolderBase]: 13/323 cut-off events. [2024-11-28 03:13:24,947 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-28 03:13:24,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 323 events. 13/323 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 749 event pairs, 6 based on Foata normal form. 13/307 useless extension candidates. Maximal degree in co-relation 339. Up to 48 conditions per place. [2024-11-28 03:13:24,951 INFO L140 encePairwiseOnDemand]: 251/257 looper letters, 15 selfloop transitions, 2 changer transitions 1/116 dead transitions. [2024-11-28 03:13:24,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 116 transitions, 309 flow [2024-11-28 03:13:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:24,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:24,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2024-11-28 03:13:24,955 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8404669260700389 [2024-11-28 03:13:24,955 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 283 flow. Second operand 3 states and 648 transitions. [2024-11-28 03:13:24,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 116 transitions, 309 flow [2024-11-28 03:13:24,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 116 transitions, 296 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:24,959 INFO L231 Difference]: Finished difference. Result has 129 places, 115 transitions, 264 flow [2024-11-28 03:13:24,960 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=129, PETRI_TRANSITIONS=115} [2024-11-28 03:13:24,960 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, 0 predicate places. [2024-11-28 03:13:24,961 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 115 transitions, 264 flow [2024-11-28 03:13:24,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:24,961 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:24,961 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:24,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:13:24,962 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 03:13:24,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:24,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1954690418, now seen corresponding path program 1 times [2024-11-28 03:13:24,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:24,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236498596] [2024-11-28 03:13:24,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:24,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:25,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:25,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236498596] [2024-11-28 03:13:25,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236498596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:25,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:25,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:25,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422729451] [2024-11-28 03:13:25,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:25,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:25,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:25,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:25,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:25,072 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 257 [2024-11-28 03:13:25,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 115 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:25,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:25,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 257 [2024-11-28 03:13:25,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:25,165 INFO L124 PetriNetUnfolderBase]: 7/289 cut-off events. [2024-11-28 03:13:25,165 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-28 03:13:25,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 289 events. 7/289 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 546 event pairs, 0 based on Foata normal form. 6/282 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2024-11-28 03:13:25,167 INFO L140 encePairwiseOnDemand]: 251/257 looper letters, 13 selfloop transitions, 1 changer transitions 24/110 dead transitions. [2024-11-28 03:13:25,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 110 transitions, 286 flow [2024-11-28 03:13:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2024-11-28 03:13:25,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7937743190661478 [2024-11-28 03:13:25,171 INFO L175 Difference]: Start difference. First operand has 129 places, 115 transitions, 264 flow. Second operand 3 states and 612 transitions. [2024-11-28 03:13:25,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 110 transitions, 286 flow [2024-11-28 03:13:25,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 110 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:25,177 INFO L231 Difference]: Finished difference. Result has 123 places, 86 transitions, 202 flow [2024-11-28 03:13:25,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=123, PETRI_TRANSITIONS=86} [2024-11-28 03:13:25,178 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, -6 predicate places. [2024-11-28 03:13:25,179 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 86 transitions, 202 flow [2024-11-28 03:13:25,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:25,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:25,180 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:25,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:13:25,180 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 03:13:25,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:25,181 INFO L85 PathProgramCache]: Analyzing trace with hash -466682257, now seen corresponding path program 1 times [2024-11-28 03:13:25,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:25,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502521403] [2024-11-28 03:13:25,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:25,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:25,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:25,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502521403] [2024-11-28 03:13:25,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502521403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:25,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:25,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:25,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122713211] [2024-11-28 03:13:25,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:25,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:25,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:25,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:25,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:25,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 257 [2024-11-28 03:13:25,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 86 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:25,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:25,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 257 [2024-11-28 03:13:25,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:25,595 INFO L124 PetriNetUnfolderBase]: 0/158 cut-off events. [2024-11-28 03:13:25,595 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-28 03:13:25,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 158 events. 0/158 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 88 event pairs, 0 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2024-11-28 03:13:25,596 INFO L140 encePairwiseOnDemand]: 252/257 looper letters, 13 selfloop transitions, 2 changer transitions 3/88 dead transitions. [2024-11-28 03:13:25,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 88 transitions, 242 flow [2024-11-28 03:13:25,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:25,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:25,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1079 transitions. [2024-11-28 03:13:25,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8396887159533074 [2024-11-28 03:13:25,602 INFO L175 Difference]: Start difference. First operand has 123 places, 86 transitions, 202 flow. Second operand 5 states and 1079 transitions. [2024-11-28 03:13:25,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 88 transitions, 242 flow [2024-11-28 03:13:25,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 88 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:25,606 INFO L231 Difference]: Finished difference. Result has 103 places, 85 transitions, 207 flow [2024-11-28 03:13:25,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=207, PETRI_PLACES=103, PETRI_TRANSITIONS=85} [2024-11-28 03:13:25,608 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, -26 predicate places. [2024-11-28 03:13:25,608 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 85 transitions, 207 flow [2024-11-28 03:13:25,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:25,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:25,610 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:25,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:13:25,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-28 03:13:25,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash 686416643, now seen corresponding path program 1 times [2024-11-28 03:13:25,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:25,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891758298] [2024-11-28 03:13:25,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:25,659 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:25,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:25,706 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:25,706 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-28 03:13:25,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-28 03:13:25,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-28 03:13:25,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-28 03:13:25,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-28 03:13:25,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-28 03:13:25,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-28 03:13:25,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-28 03:13:25,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-28 03:13:25,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-28 03:13:25,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-28 03:13:25,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-28 03:13:25,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-28 03:13:25,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:13:25,707 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:25,708 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:25,708 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-28 03:13:25,785 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:25,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 294 transitions, 696 flow [2024-11-28 03:13:25,918 INFO L124 PetriNetUnfolderBase]: 37/479 cut-off events. [2024-11-28 03:13:25,919 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-28 03:13:25,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 479 events. 37/479 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1237 event pairs, 0 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 520. Up to 14 conditions per place. [2024-11-28 03:13:25,921 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 294 transitions, 696 flow [2024-11-28 03:13:25,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 127 transitions, 311 flow [2024-11-28 03:13:25,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:25,924 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:25,925 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-28 03:13:25,927 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:25,928 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:25,928 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:25,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:25,928 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:25,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 03:13:25,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:25,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1338178214, now seen corresponding path program 1 times [2024-11-28 03:13:25,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:25,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461750617] [2024-11-28 03:13:25,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:25,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:25,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:25,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461750617] [2024-11-28 03:13:25,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461750617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:25,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:25,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:25,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933211976] [2024-11-28 03:13:25,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:25,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:25,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:25,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:25,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:26,040 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 294 [2024-11-28 03:13:26,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 127 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:26,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:26,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 294 [2024-11-28 03:13:26,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:26,139 INFO L124 PetriNetUnfolderBase]: 15/372 cut-off events. [2024-11-28 03:13:26,140 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-28 03:13:26,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 372 events. 15/372 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 884 event pairs, 7 based on Foata normal form. 15/354 useless extension candidates. Maximal degree in co-relation 403. Up to 55 conditions per place. [2024-11-28 03:13:26,142 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 16 selfloop transitions, 2 changer transitions 1/123 dead transitions. [2024-11-28 03:13:26,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 123 transitions, 339 flow [2024-11-28 03:13:26,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:26,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2024-11-28 03:13:26,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8378684807256236 [2024-11-28 03:13:26,145 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 311 flow. Second operand 3 states and 739 transitions. [2024-11-28 03:13:26,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 123 transitions, 339 flow [2024-11-28 03:13:26,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 123 transitions, 318 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:26,149 INFO L231 Difference]: Finished difference. Result has 138 places, 122 transitions, 284 flow [2024-11-28 03:13:26,150 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=138, PETRI_TRANSITIONS=122} [2024-11-28 03:13:26,150 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 0 predicate places. [2024-11-28 03:13:26,151 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 122 transitions, 284 flow [2024-11-28 03:13:26,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:26,151 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:26,152 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:26,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:13:26,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 03:13:26,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:26,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1834535438, now seen corresponding path program 1 times [2024-11-28 03:13:26,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:26,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550178692] [2024-11-28 03:13:26,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:26,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:26,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550178692] [2024-11-28 03:13:26,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550178692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:26,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:26,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:26,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303180083] [2024-11-28 03:13:26,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:26,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:26,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:26,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:26,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:26,241 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 294 [2024-11-28 03:13:26,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 122 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:26,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:26,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 294 [2024-11-28 03:13:26,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:26,332 INFO L124 PetriNetUnfolderBase]: 8/333 cut-off events. [2024-11-28 03:13:26,332 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-28 03:13:26,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 333 events. 8/333 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 647 event pairs, 0 based on Foata normal form. 7/325 useless extension candidates. Maximal degree in co-relation 386. Up to 40 conditions per place. [2024-11-28 03:13:26,334 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 14 selfloop transitions, 1 changer transitions 24/117 dead transitions. [2024-11-28 03:13:26,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 117 transitions, 308 flow [2024-11-28 03:13:26,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:26,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-11-28 03:13:26,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7902494331065759 [2024-11-28 03:13:26,337 INFO L175 Difference]: Start difference. First operand has 138 places, 122 transitions, 284 flow. Second operand 3 states and 697 transitions. [2024-11-28 03:13:26,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 117 transitions, 308 flow [2024-11-28 03:13:26,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 117 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:26,341 INFO L231 Difference]: Finished difference. Result has 132 places, 93 transitions, 222 flow [2024-11-28 03:13:26,341 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=132, PETRI_TRANSITIONS=93} [2024-11-28 03:13:26,342 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -6 predicate places. [2024-11-28 03:13:26,343 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 93 transitions, 222 flow [2024-11-28 03:13:26,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:26,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:26,344 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:26,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:13:26,345 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 03:13:26,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:26,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1741960758, now seen corresponding path program 1 times [2024-11-28 03:13:26,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:26,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983048245] [2024-11-28 03:13:26,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:26,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:26,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:26,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983048245] [2024-11-28 03:13:26,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983048245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:26,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:26,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:26,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220914848] [2024-11-28 03:13:26,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:26,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:26,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:26,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:26,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:26,644 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 294 [2024-11-28 03:13:26,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 93 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 246.2) internal successors, (1231), 5 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:26,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:26,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 294 [2024-11-28 03:13:26,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:26,699 INFO L124 PetriNetUnfolderBase]: 0/178 cut-off events. [2024-11-28 03:13:26,699 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-28 03:13:26,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 178 events. 0/178 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 99 event pairs, 0 based on Foata normal form. 1/178 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2024-11-28 03:13:26,700 INFO L140 encePairwiseOnDemand]: 289/294 looper letters, 14 selfloop transitions, 2 changer transitions 3/95 dead transitions. [2024-11-28 03:13:26,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 95 transitions, 264 flow [2024-11-28 03:13:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1235 transitions. [2024-11-28 03:13:26,705 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8401360544217688 [2024-11-28 03:13:26,706 INFO L175 Difference]: Start difference. First operand has 132 places, 93 transitions, 222 flow. Second operand 5 states and 1235 transitions. [2024-11-28 03:13:26,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 95 transitions, 264 flow [2024-11-28 03:13:26,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 95 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:26,709 INFO L231 Difference]: Finished difference. Result has 112 places, 92 transitions, 227 flow [2024-11-28 03:13:26,709 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=112, PETRI_TRANSITIONS=92} [2024-11-28 03:13:26,710 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -26 predicate places. [2024-11-28 03:13:26,710 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 92 transitions, 227 flow [2024-11-28 03:13:26,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 246.2) internal successors, (1231), 5 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:26,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:26,711 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:26,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:13:26,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 03:13:26,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:26,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1524482780, now seen corresponding path program 1 times [2024-11-28 03:13:26,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:26,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705704862] [2024-11-28 03:13:26,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:26,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:26,744 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:26,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:26,791 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:26,793 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-28 03:13:26,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-28 03:13:26,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-28 03:13:26,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-28 03:13:26,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:13:26,794 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:26,795 WARN L246 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:26,795 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-28 03:13:26,878 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:26,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 331 transitions, 802 flow [2024-11-28 03:13:26,970 INFO L124 PetriNetUnfolderBase]: 42/543 cut-off events. [2024-11-28 03:13:26,970 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-28 03:13:26,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 543 events. 42/543 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1419 event pairs, 0 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 594. Up to 16 conditions per place. [2024-11-28 03:13:26,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 331 transitions, 802 flow [2024-11-28 03:13:26,975 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 134 transitions, 341 flow [2024-11-28 03:13:26,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:26,977 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:26,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-28 03:13:26,979 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:26,979 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:26,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:26,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:26,980 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:26,980 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-28 03:13:26,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1769167450, now seen corresponding path program 1 times [2024-11-28 03:13:26,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:26,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497649434] [2024-11-28 03:13:26,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:26,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:27,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:27,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:27,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497649434] [2024-11-28 03:13:27,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497649434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:27,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:27,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:27,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449189272] [2024-11-28 03:13:27,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:27,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:27,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:27,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:27,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:27,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 331 [2024-11-28 03:13:27,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 134 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:27,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:27,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 331 [2024-11-28 03:13:27,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:27,191 INFO L124 PetriNetUnfolderBase]: 17/421 cut-off events. [2024-11-28 03:13:27,191 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-28 03:13:27,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 421 events. 17/421 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 985 event pairs, 8 based on Foata normal form. 9/393 useless extension candidates. Maximal degree in co-relation 468. Up to 62 conditions per place. [2024-11-28 03:13:27,194 INFO L140 encePairwiseOnDemand]: 325/331 looper letters, 17 selfloop transitions, 2 changer transitions 1/130 dead transitions. [2024-11-28 03:13:27,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 130 transitions, 371 flow [2024-11-28 03:13:27,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:27,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2024-11-28 03:13:27,198 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8358509566968781 [2024-11-28 03:13:27,198 INFO L175 Difference]: Start difference. First operand has 147 places, 134 transitions, 341 flow. Second operand 3 states and 830 transitions. [2024-11-28 03:13:27,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 130 transitions, 371 flow [2024-11-28 03:13:27,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 130 transitions, 340 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:27,202 INFO L231 Difference]: Finished difference. Result has 147 places, 129 transitions, 304 flow [2024-11-28 03:13:27,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=147, PETRI_TRANSITIONS=129} [2024-11-28 03:13:27,203 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-11-28 03:13:27,203 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 129 transitions, 304 flow [2024-11-28 03:13:27,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:27,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:27,204 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:27,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:13:27,204 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-28 03:13:27,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:27,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1846513714, now seen corresponding path program 1 times [2024-11-28 03:13:27,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:27,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85845183] [2024-11-28 03:13:27,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:27,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:27,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:27,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85845183] [2024-11-28 03:13:27,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85845183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:27,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:27,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:27,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230958302] [2024-11-28 03:13:27,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:27,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:27,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:27,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:27,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:27,293 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 331 [2024-11-28 03:13:27,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 129 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:27,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:27,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 331 [2024-11-28 03:13:27,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:27,395 INFO L124 PetriNetUnfolderBase]: 9/377 cut-off events. [2024-11-28 03:13:27,395 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-28 03:13:27,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 377 events. 9/377 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 733 event pairs, 0 based on Foata normal form. 8/368 useless extension candidates. Maximal degree in co-relation 440. Up to 45 conditions per place. [2024-11-28 03:13:27,397 INFO L140 encePairwiseOnDemand]: 325/331 looper letters, 15 selfloop transitions, 1 changer transitions 24/124 dead transitions. [2024-11-28 03:13:27,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 124 transitions, 330 flow [2024-11-28 03:13:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:27,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 782 transitions. [2024-11-28 03:13:27,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7875125881168177 [2024-11-28 03:13:27,401 INFO L175 Difference]: Start difference. First operand has 147 places, 129 transitions, 304 flow. Second operand 3 states and 782 transitions. [2024-11-28 03:13:27,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 124 transitions, 330 flow [2024-11-28 03:13:27,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 124 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:27,405 INFO L231 Difference]: Finished difference. Result has 141 places, 100 transitions, 242 flow [2024-11-28 03:13:27,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=141, PETRI_TRANSITIONS=100} [2024-11-28 03:13:27,406 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, -6 predicate places. [2024-11-28 03:13:27,406 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 100 transitions, 242 flow [2024-11-28 03:13:27,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:27,407 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:27,407 INFO L206 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:27,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:13:27,408 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-28 03:13:27,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:27,409 INFO L85 PathProgramCache]: Analyzing trace with hash -627588021, now seen corresponding path program 1 times [2024-11-28 03:13:27,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:27,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145570078] [2024-11-28 03:13:27,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:27,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:27,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:27,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145570078] [2024-11-28 03:13:27,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145570078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:27,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:27,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:27,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873594177] [2024-11-28 03:13:27,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:27,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:27,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:27,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:27,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:27,765 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 331 [2024-11-28 03:13:27,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 100 transitions, 242 flow. Second operand has 5 states, 5 states have (on average 277.4) internal successors, (1387), 5 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:27,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:27,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 331 [2024-11-28 03:13:27,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:27,828 INFO L124 PetriNetUnfolderBase]: 0/198 cut-off events. [2024-11-28 03:13:27,828 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-28 03:13:27,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 198 events. 0/198 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 111 event pairs, 0 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2024-11-28 03:13:27,829 INFO L140 encePairwiseOnDemand]: 326/331 looper letters, 15 selfloop transitions, 2 changer transitions 3/102 dead transitions. [2024-11-28 03:13:27,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 102 transitions, 286 flow [2024-11-28 03:13:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:27,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:27,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1391 transitions. [2024-11-28 03:13:27,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8404833836858006 [2024-11-28 03:13:27,834 INFO L175 Difference]: Start difference. First operand has 141 places, 100 transitions, 242 flow. Second operand 5 states and 1391 transitions. [2024-11-28 03:13:27,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 102 transitions, 286 flow [2024-11-28 03:13:27,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 102 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:27,837 INFO L231 Difference]: Finished difference. Result has 121 places, 99 transitions, 247 flow [2024-11-28 03:13:27,837 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=247, PETRI_PLACES=121, PETRI_TRANSITIONS=99} [2024-11-28 03:13:27,838 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, -26 predicate places. [2024-11-28 03:13:27,838 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 99 transitions, 247 flow [2024-11-28 03:13:27,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 277.4) internal successors, (1387), 5 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:27,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:27,839 INFO L206 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:27,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:13:27,839 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-28 03:13:27,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1653976558, now seen corresponding path program 1 times [2024-11-28 03:13:27,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:27,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236241148] [2024-11-28 03:13:27,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:27,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:27,870 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:27,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:27,904 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:27,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-28 03:13:27,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-28 03:13:27,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-28 03:13:27,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-28 03:13:27,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-28 03:13:27,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-28 03:13:27,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-28 03:13:27,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-28 03:13:27,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-28 03:13:27,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-28 03:13:27,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-28 03:13:27,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-28 03:13:27,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-28 03:13:27,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-28 03:13:27,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-28 03:13:27,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:13:27,907 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:27,907 WARN L246 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:27,907 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-11-28 03:13:28,003 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:28,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 368 transitions, 912 flow [2024-11-28 03:13:28,115 INFO L124 PetriNetUnfolderBase]: 47/607 cut-off events. [2024-11-28 03:13:28,115 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-28 03:13:28,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 607 events. 47/607 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1609 event pairs, 0 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 669. Up to 18 conditions per place. [2024-11-28 03:13:28,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 367 places, 368 transitions, 912 flow [2024-11-28 03:13:28,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 141 transitions, 373 flow [2024-11-28 03:13:28,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:28,128 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:28,129 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-28 03:13:28,131 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:28,131 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:28,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:28,132 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:28,132 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:28,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 03:13:28,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:28,135 INFO L85 PathProgramCache]: Analyzing trace with hash -630450778, now seen corresponding path program 1 times [2024-11-28 03:13:28,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:28,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069117531] [2024-11-28 03:13:28,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:28,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069117531] [2024-11-28 03:13:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069117531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:28,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:28,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:28,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668252511] [2024-11-28 03:13:28,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:28,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:28,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:28,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:28,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:28,269 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 368 [2024-11-28 03:13:28,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 141 transitions, 373 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:28,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:28,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 368 [2024-11-28 03:13:28,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:28,401 INFO L124 PetriNetUnfolderBase]: 19/470 cut-off events. [2024-11-28 03:13:28,402 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-28 03:13:28,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 470 events. 19/470 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1120 event pairs, 9 based on Foata normal form. 10/439 useless extension candidates. Maximal degree in co-relation 534. Up to 69 conditions per place. [2024-11-28 03:13:28,406 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 18 selfloop transitions, 2 changer transitions 1/137 dead transitions. [2024-11-28 03:13:28,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 137 transitions, 405 flow [2024-11-28 03:13:28,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-28 03:13:28,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8342391304347826 [2024-11-28 03:13:28,410 INFO L175 Difference]: Start difference. First operand has 156 places, 141 transitions, 373 flow. Second operand 3 states and 921 transitions. [2024-11-28 03:13:28,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 137 transitions, 405 flow [2024-11-28 03:13:28,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 137 transitions, 362 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:28,415 INFO L231 Difference]: Finished difference. Result has 156 places, 136 transitions, 324 flow [2024-11-28 03:13:28,415 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=156, PETRI_TRANSITIONS=136} [2024-11-28 03:13:28,416 INFO L279 CegarLoopForPetriNet]: 156 programPoint places, 0 predicate places. [2024-11-28 03:13:28,416 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 136 transitions, 324 flow [2024-11-28 03:13:28,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:28,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:28,417 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:28,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:13:28,417 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 03:13:28,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:28,418 INFO L85 PathProgramCache]: Analyzing trace with hash -112935986, now seen corresponding path program 1 times [2024-11-28 03:13:28,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:28,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972703440] [2024-11-28 03:13:28,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:28,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:28,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:28,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972703440] [2024-11-28 03:13:28,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972703440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:28,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:28,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:28,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084002693] [2024-11-28 03:13:28,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:28,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:28,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:28,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:28,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:28,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 368 [2024-11-28 03:13:28,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 136 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:28,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:28,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 368 [2024-11-28 03:13:28,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:28,629 INFO L124 PetriNetUnfolderBase]: 10/421 cut-off events. [2024-11-28 03:13:28,629 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-28 03:13:28,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 421 events. 10/421 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 834 event pairs, 0 based on Foata normal form. 9/411 useless extension candidates. Maximal degree in co-relation 494. Up to 50 conditions per place. [2024-11-28 03:13:28,632 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 16 selfloop transitions, 1 changer transitions 24/131 dead transitions. [2024-11-28 03:13:28,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 131 transitions, 352 flow [2024-11-28 03:13:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:28,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2024-11-28 03:13:28,636 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7853260869565217 [2024-11-28 03:13:28,636 INFO L175 Difference]: Start difference. First operand has 156 places, 136 transitions, 324 flow. Second operand 3 states and 867 transitions. [2024-11-28 03:13:28,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 131 transitions, 352 flow [2024-11-28 03:13:28,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 131 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:28,640 INFO L231 Difference]: Finished difference. Result has 150 places, 107 transitions, 262 flow [2024-11-28 03:13:28,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=150, PETRI_TRANSITIONS=107} [2024-11-28 03:13:28,641 INFO L279 CegarLoopForPetriNet]: 156 programPoint places, -6 predicate places. [2024-11-28 03:13:28,641 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 107 transitions, 262 flow [2024-11-28 03:13:28,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:28,642 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:28,642 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:28,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:13:28,642 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 03:13:28,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:28,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1756030770, now seen corresponding path program 1 times [2024-11-28 03:13:28,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:28,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735734782] [2024-11-28 03:13:28,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:28,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:28,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735734782] [2024-11-28 03:13:28,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735734782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:28,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:28,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:28,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793859697] [2024-11-28 03:13:28,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:28,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:28,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:28,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:28,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:28,928 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 368 [2024-11-28 03:13:28,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 107 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 308.6) internal successors, (1543), 5 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:28,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:28,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 368 [2024-11-28 03:13:28,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:29,004 INFO L124 PetriNetUnfolderBase]: 0/218 cut-off events. [2024-11-28 03:13:29,005 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-28 03:13:29,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 218 events. 0/218 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 124 event pairs, 0 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2024-11-28 03:13:29,006 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 16 selfloop transitions, 2 changer transitions 3/109 dead transitions. [2024-11-28 03:13:29,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 109 transitions, 308 flow [2024-11-28 03:13:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:29,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1547 transitions. [2024-11-28 03:13:29,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8407608695652173 [2024-11-28 03:13:29,010 INFO L175 Difference]: Start difference. First operand has 150 places, 107 transitions, 262 flow. Second operand 5 states and 1547 transitions. [2024-11-28 03:13:29,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 109 transitions, 308 flow [2024-11-28 03:13:29,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 109 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:29,014 INFO L231 Difference]: Finished difference. Result has 130 places, 106 transitions, 267 flow [2024-11-28 03:13:29,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=267, PETRI_PLACES=130, PETRI_TRANSITIONS=106} [2024-11-28 03:13:29,015 INFO L279 CegarLoopForPetriNet]: 156 programPoint places, -26 predicate places. [2024-11-28 03:13:29,015 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 106 transitions, 267 flow [2024-11-28 03:13:29,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 308.6) internal successors, (1543), 5 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:29,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:29,017 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:29,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:13:29,018 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 03:13:29,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash -752020543, now seen corresponding path program 1 times [2024-11-28 03:13:29,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:29,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800605822] [2024-11-28 03:13:29,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:29,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:29,122 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:29,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:29,162 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:29,162 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-28 03:13:29,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-28 03:13:29,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-28 03:13:29,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-28 03:13:29,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-28 03:13:29,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-28 03:13:29,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-28 03:13:29,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-28 03:13:29,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-28 03:13:29,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-28 03:13:29,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-28 03:13:29,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-28 03:13:29,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-28 03:13:29,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-28 03:13:29,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-28 03:13:29,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-28 03:13:29,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:13:29,165 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:29,165 WARN L246 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:29,166 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-11-28 03:13:29,273 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:29,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 405 transitions, 1026 flow [2024-11-28 03:13:29,415 INFO L124 PetriNetUnfolderBase]: 52/671 cut-off events. [2024-11-28 03:13:29,415 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-28 03:13:29,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 671 events. 52/671 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1786 event pairs, 0 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 745. Up to 20 conditions per place. [2024-11-28 03:13:29,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 404 places, 405 transitions, 1026 flow [2024-11-28 03:13:29,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 148 transitions, 407 flow [2024-11-28 03:13:29,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:29,427 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:29,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-28 03:13:29,430 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:29,431 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:29,431 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:29,431 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:29,431 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:29,431 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-28 03:13:29,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash 459360934, now seen corresponding path program 1 times [2024-11-28 03:13:29,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:29,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731382916] [2024-11-28 03:13:29,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:29,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:29,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731382916] [2024-11-28 03:13:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731382916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:29,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:29,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:29,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130223884] [2024-11-28 03:13:29,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:29,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:29,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:29,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:29,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:29,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 405 [2024-11-28 03:13:29,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 148 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:29,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:29,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 405 [2024-11-28 03:13:29,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:29,727 INFO L124 PetriNetUnfolderBase]: 21/519 cut-off events. [2024-11-28 03:13:29,727 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-28 03:13:29,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 519 events. 21/519 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1254 event pairs, 10 based on Foata normal form. 11/485 useless extension candidates. Maximal degree in co-relation 601. Up to 76 conditions per place. [2024-11-28 03:13:29,732 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 19 selfloop transitions, 2 changer transitions 1/144 dead transitions. [2024-11-28 03:13:29,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 144 transitions, 441 flow [2024-11-28 03:13:29,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:29,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2024-11-28 03:13:29,736 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8329218106995885 [2024-11-28 03:13:29,736 INFO L175 Difference]: Start difference. First operand has 165 places, 148 transitions, 407 flow. Second operand 3 states and 1012 transitions. [2024-11-28 03:13:29,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 144 transitions, 441 flow [2024-11-28 03:13:29,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 144 transitions, 384 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:29,741 INFO L231 Difference]: Finished difference. Result has 165 places, 143 transitions, 344 flow [2024-11-28 03:13:29,741 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=165, PETRI_TRANSITIONS=143} [2024-11-28 03:13:29,742 INFO L279 CegarLoopForPetriNet]: 165 programPoint places, 0 predicate places. [2024-11-28 03:13:29,742 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 143 transitions, 344 flow [2024-11-28 03:13:29,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:29,743 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:29,743 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:29,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:13:29,744 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-28 03:13:29,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:29,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1554665970, now seen corresponding path program 1 times [2024-11-28 03:13:29,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:29,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440761425] [2024-11-28 03:13:29,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:29,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:29,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:29,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440761425] [2024-11-28 03:13:29,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440761425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:29,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:29,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:29,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254331542] [2024-11-28 03:13:29,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:29,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:29,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:29,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:29,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:29,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 405 [2024-11-28 03:13:29,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 143 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:29,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:29,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 405 [2024-11-28 03:13:29,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:29,985 INFO L124 PetriNetUnfolderBase]: 11/465 cut-off events. [2024-11-28 03:13:29,985 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-28 03:13:29,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 465 events. 11/465 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 933 event pairs, 0 based on Foata normal form. 10/454 useless extension candidates. Maximal degree in co-relation 548. Up to 55 conditions per place. [2024-11-28 03:13:29,988 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 17 selfloop transitions, 1 changer transitions 24/138 dead transitions. [2024-11-28 03:13:29,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 138 transitions, 374 flow [2024-11-28 03:13:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:29,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2024-11-28 03:13:29,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7835390946502058 [2024-11-28 03:13:29,992 INFO L175 Difference]: Start difference. First operand has 165 places, 143 transitions, 344 flow. Second operand 3 states and 952 transitions. [2024-11-28 03:13:29,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 138 transitions, 374 flow [2024-11-28 03:13:29,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 138 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:29,996 INFO L231 Difference]: Finished difference. Result has 159 places, 114 transitions, 282 flow [2024-11-28 03:13:29,997 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=159, PETRI_TRANSITIONS=114} [2024-11-28 03:13:29,998 INFO L279 CegarLoopForPetriNet]: 165 programPoint places, -6 predicate places. [2024-11-28 03:13:29,998 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 114 transitions, 282 flow [2024-11-28 03:13:29,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:29,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:29,999 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:29,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:13:29,999 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-28 03:13:30,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:30,002 INFO L85 PathProgramCache]: Analyzing trace with hash 310682591, now seen corresponding path program 1 times [2024-11-28 03:13:30,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:30,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856426570] [2024-11-28 03:13:30,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:30,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:30,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:30,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856426570] [2024-11-28 03:13:30,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856426570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:30,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:30,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:30,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075318959] [2024-11-28 03:13:30,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:30,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:30,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:30,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:30,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:30,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 405 [2024-11-28 03:13:30,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 114 transitions, 282 flow. Second operand has 5 states, 5 states have (on average 339.8) internal successors, (1699), 5 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:30,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:30,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 405 [2024-11-28 03:13:30,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:30,432 INFO L124 PetriNetUnfolderBase]: 0/238 cut-off events. [2024-11-28 03:13:30,432 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-28 03:13:30,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 238 events. 0/238 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 135 event pairs, 0 based on Foata normal form. 1/238 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2024-11-28 03:13:30,433 INFO L140 encePairwiseOnDemand]: 400/405 looper letters, 17 selfloop transitions, 2 changer transitions 3/116 dead transitions. [2024-11-28 03:13:30,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 116 transitions, 330 flow [2024-11-28 03:13:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:30,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1703 transitions. [2024-11-28 03:13:30,438 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8409876543209877 [2024-11-28 03:13:30,439 INFO L175 Difference]: Start difference. First operand has 159 places, 114 transitions, 282 flow. Second operand 5 states and 1703 transitions. [2024-11-28 03:13:30,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 116 transitions, 330 flow [2024-11-28 03:13:30,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 116 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:30,442 INFO L231 Difference]: Finished difference. Result has 139 places, 113 transitions, 287 flow [2024-11-28 03:13:30,443 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=287, PETRI_PLACES=139, PETRI_TRANSITIONS=113} [2024-11-28 03:13:30,443 INFO L279 CegarLoopForPetriNet]: 165 programPoint places, -26 predicate places. [2024-11-28 03:13:30,443 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 113 transitions, 287 flow [2024-11-28 03:13:30,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 339.8) internal successors, (1699), 5 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:30,444 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:30,445 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:30,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:13:30,445 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-28 03:13:30,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:30,446 INFO L85 PathProgramCache]: Analyzing trace with hash 899837181, now seen corresponding path program 1 times [2024-11-28 03:13:30,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:30,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512931501] [2024-11-28 03:13:30,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:30,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:30,488 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:30,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:30,536 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:30,536 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-28 03:13:30,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-28 03:13:30,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-28 03:13:30,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-28 03:13:30,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-28 03:13:30,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 03:13:30,538 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:30,538 WARN L246 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:30,538 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-11-28 03:13:30,730 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:30,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 442 transitions, 1144 flow [2024-11-28 03:13:30,933 INFO L124 PetriNetUnfolderBase]: 57/735 cut-off events. [2024-11-28 03:13:30,933 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-28 03:13:30,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843 conditions, 735 events. 57/735 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1994 event pairs, 0 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 822. Up to 22 conditions per place. [2024-11-28 03:13:30,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 442 transitions, 1144 flow [2024-11-28 03:13:30,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 155 transitions, 443 flow [2024-11-28 03:13:30,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:30,946 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:30,946 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-28 03:13:30,949 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:30,949 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:30,950 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:30,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:30,950 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:30,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 03:13:30,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:30,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1500267686, now seen corresponding path program 1 times [2024-11-28 03:13:30,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:30,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177495226] [2024-11-28 03:13:30,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:30,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:30,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:30,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177495226] [2024-11-28 03:13:30,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177495226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:30,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:30,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:30,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934172498] [2024-11-28 03:13:30,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:30,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:30,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:30,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:30,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:31,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 442 [2024-11-28 03:13:31,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 155 transitions, 443 flow. Second operand has 3 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:31,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:31,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 442 [2024-11-28 03:13:31,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:31,307 INFO L124 PetriNetUnfolderBase]: 23/568 cut-off events. [2024-11-28 03:13:31,308 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-28 03:13:31,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 568 events. 23/568 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1441 event pairs, 11 based on Foata normal form. 23/542 useless extension candidates. Maximal degree in co-relation 669. Up to 83 conditions per place. [2024-11-28 03:13:31,314 INFO L140 encePairwiseOnDemand]: 436/442 looper letters, 20 selfloop transitions, 2 changer transitions 1/151 dead transitions. [2024-11-28 03:13:31,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 151 transitions, 479 flow [2024-11-28 03:13:31,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:31,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1103 transitions. [2024-11-28 03:13:31,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8318250377073907 [2024-11-28 03:13:31,319 INFO L175 Difference]: Start difference. First operand has 174 places, 155 transitions, 443 flow. Second operand 3 states and 1103 transitions. [2024-11-28 03:13:31,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 151 transitions, 479 flow [2024-11-28 03:13:31,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 151 transitions, 406 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:31,326 INFO L231 Difference]: Finished difference. Result has 174 places, 150 transitions, 364 flow [2024-11-28 03:13:31,326 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=174, PETRI_TRANSITIONS=150} [2024-11-28 03:13:31,327 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, 0 predicate places. [2024-11-28 03:13:31,327 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 150 transitions, 364 flow [2024-11-28 03:13:31,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:31,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:31,328 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:31,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:13:31,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 03:13:31,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:31,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1876736370, now seen corresponding path program 1 times [2024-11-28 03:13:31,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:31,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955614753] [2024-11-28 03:13:31,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:31,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:31,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955614753] [2024-11-28 03:13:31,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955614753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:31,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:31,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:31,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710857183] [2024-11-28 03:13:31,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:31,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:31,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:31,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:31,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:31,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 442 [2024-11-28 03:13:31,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 150 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:31,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:31,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 442 [2024-11-28 03:13:31,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:31,587 INFO L124 PetriNetUnfolderBase]: 12/509 cut-off events. [2024-11-28 03:13:31,587 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-28 03:13:31,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 509 events. 12/509 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1055 event pairs, 0 based on Foata normal form. 11/497 useless extension candidates. Maximal degree in co-relation 602. Up to 60 conditions per place. [2024-11-28 03:13:31,591 INFO L140 encePairwiseOnDemand]: 436/442 looper letters, 18 selfloop transitions, 1 changer transitions 24/145 dead transitions. [2024-11-28 03:13:31,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 145 transitions, 396 flow [2024-11-28 03:13:31,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:31,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1037 transitions. [2024-11-28 03:13:31,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.782051282051282 [2024-11-28 03:13:31,595 INFO L175 Difference]: Start difference. First operand has 174 places, 150 transitions, 364 flow. Second operand 3 states and 1037 transitions. [2024-11-28 03:13:31,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 145 transitions, 396 flow [2024-11-28 03:13:31,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 145 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:31,599 INFO L231 Difference]: Finished difference. Result has 168 places, 121 transitions, 302 flow [2024-11-28 03:13:31,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=168, PETRI_TRANSITIONS=121} [2024-11-28 03:13:31,602 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2024-11-28 03:13:31,603 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 121 transitions, 302 flow [2024-11-28 03:13:31,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:31,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:31,604 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:31,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:13:31,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 03:13:31,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:31,605 INFO L85 PathProgramCache]: Analyzing trace with hash 804509086, now seen corresponding path program 1 times [2024-11-28 03:13:31,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:31,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727203386] [2024-11-28 03:13:31,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:31,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:31,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:31,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:31,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727203386] [2024-11-28 03:13:31,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727203386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:31,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:31,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:31,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887088518] [2024-11-28 03:13:31,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:31,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:31,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:31,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:31,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:31,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 442 [2024-11-28 03:13:31,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 121 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 371.0) internal successors, (1855), 5 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:31,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:31,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 442 [2024-11-28 03:13:31,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:32,043 INFO L124 PetriNetUnfolderBase]: 0/258 cut-off events. [2024-11-28 03:13:32,044 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-28 03:13:32,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 258 events. 0/258 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 147 event pairs, 0 based on Foata normal form. 1/258 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2024-11-28 03:13:32,045 INFO L140 encePairwiseOnDemand]: 437/442 looper letters, 18 selfloop transitions, 2 changer transitions 3/123 dead transitions. [2024-11-28 03:13:32,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 123 transitions, 352 flow [2024-11-28 03:13:32,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:32,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:32,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1859 transitions. [2024-11-28 03:13:32,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8411764705882353 [2024-11-28 03:13:32,051 INFO L175 Difference]: Start difference. First operand has 168 places, 121 transitions, 302 flow. Second operand 5 states and 1859 transitions. [2024-11-28 03:13:32,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 123 transitions, 352 flow [2024-11-28 03:13:32,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 123 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:32,056 INFO L231 Difference]: Finished difference. Result has 148 places, 120 transitions, 307 flow [2024-11-28 03:13:32,056 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=307, PETRI_PLACES=148, PETRI_TRANSITIONS=120} [2024-11-28 03:13:32,057 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -26 predicate places. [2024-11-28 03:13:32,057 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 120 transitions, 307 flow [2024-11-28 03:13:32,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 371.0) internal successors, (1855), 5 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:32,059 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:32,059 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:32,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 03:13:32,059 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 03:13:32,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:32,061 INFO L85 PathProgramCache]: Analyzing trace with hash -2085562366, now seen corresponding path program 1 times [2024-11-28 03:13:32,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:32,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267638306] [2024-11-28 03:13:32,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:32,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:32,102 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:32,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:32,159 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:32,160 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-28 03:13:32,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-28 03:13:32,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-28 03:13:32,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-28 03:13:32,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-28 03:13:32,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-28 03:13:32,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 18 remaining) [2024-11-28 03:13:32,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-28 03:13:32,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-28 03:13:32,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-28 03:13:32,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-28 03:13:32,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-28 03:13:32,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-28 03:13:32,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-28 03:13:32,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-28 03:13:32,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-28 03:13:32,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-28 03:13:32,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-28 03:13:32,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 03:13:32,163 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:32,164 WARN L246 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:32,165 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-11-28 03:13:32,311 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:32,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 478 places, 479 transitions, 1266 flow [2024-11-28 03:13:32,519 INFO L124 PetriNetUnfolderBase]: 62/799 cut-off events. [2024-11-28 03:13:32,519 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-28 03:13:32,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 923 conditions, 799 events. 62/799 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2217 event pairs, 0 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 900. Up to 24 conditions per place. [2024-11-28 03:13:32,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 478 places, 479 transitions, 1266 flow [2024-11-28 03:13:32,527 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 162 transitions, 481 flow [2024-11-28 03:13:32,528 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:32,528 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:32,528 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-28 03:13:32,531 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:32,531 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:32,531 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:32,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:32,531 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:32,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-28 03:13:32,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:32,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1802697818, now seen corresponding path program 1 times [2024-11-28 03:13:32,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:32,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144330785] [2024-11-28 03:13:32,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:32,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:32,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:32,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144330785] [2024-11-28 03:13:32,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144330785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:32,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:32,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:32,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736761993] [2024-11-28 03:13:32,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:32,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:32,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:32,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:32,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:32,663 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 479 [2024-11-28 03:13:32,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 162 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 390.3333333333333) internal successors, (1171), 3 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:32,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:32,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 479 [2024-11-28 03:13:32,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:32,827 INFO L124 PetriNetUnfolderBase]: 25/617 cut-off events. [2024-11-28 03:13:32,827 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-28 03:13:32,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 617 events. 25/617 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1520 event pairs, 12 based on Foata normal form. 13/577 useless extension candidates. Maximal degree in co-relation 738. Up to 90 conditions per place. [2024-11-28 03:13:32,833 INFO L140 encePairwiseOnDemand]: 473/479 looper letters, 21 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-28 03:13:32,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 158 transitions, 519 flow [2024-11-28 03:13:32,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:32,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1194 transitions. [2024-11-28 03:13:32,837 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8308977035490606 [2024-11-28 03:13:32,838 INFO L175 Difference]: Start difference. First operand has 183 places, 162 transitions, 481 flow. Second operand 3 states and 1194 transitions. [2024-11-28 03:13:32,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 158 transitions, 519 flow [2024-11-28 03:13:32,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 158 transitions, 428 flow, removed 45 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:32,844 INFO L231 Difference]: Finished difference. Result has 183 places, 157 transitions, 384 flow [2024-11-28 03:13:32,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=183, PETRI_TRANSITIONS=157} [2024-11-28 03:13:32,845 INFO L279 CegarLoopForPetriNet]: 183 programPoint places, 0 predicate places. [2024-11-28 03:13:32,846 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 157 transitions, 384 flow [2024-11-28 03:13:32,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 390.3333333333333) internal successors, (1171), 3 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:32,847 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:32,847 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:32,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 03:13:32,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-28 03:13:32,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:32,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1079147186, now seen corresponding path program 1 times [2024-11-28 03:13:32,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:32,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160066309] [2024-11-28 03:13:32,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:32,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:32,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:32,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160066309] [2024-11-28 03:13:32,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160066309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:32,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:32,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:32,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665557738] [2024-11-28 03:13:32,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:32,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:32,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:32,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:32,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:32,969 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 479 [2024-11-28 03:13:32,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 157 transitions, 384 flow. Second operand has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:32,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:32,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 479 [2024-11-28 03:13:32,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:33,129 INFO L124 PetriNetUnfolderBase]: 13/553 cut-off events. [2024-11-28 03:13:33,129 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-28 03:13:33,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 553 events. 13/553 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1134 event pairs, 0 based on Foata normal form. 12/540 useless extension candidates. Maximal degree in co-relation 656. Up to 65 conditions per place. [2024-11-28 03:13:33,133 INFO L140 encePairwiseOnDemand]: 473/479 looper letters, 19 selfloop transitions, 1 changer transitions 24/152 dead transitions. [2024-11-28 03:13:33,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 152 transitions, 418 flow [2024-11-28 03:13:33,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:33,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:33,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1122 transitions. [2024-11-28 03:13:33,138 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7807933194154488 [2024-11-28 03:13:33,138 INFO L175 Difference]: Start difference. First operand has 183 places, 157 transitions, 384 flow. Second operand 3 states and 1122 transitions. [2024-11-28 03:13:33,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 152 transitions, 418 flow [2024-11-28 03:13:33,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:33,142 INFO L231 Difference]: Finished difference. Result has 177 places, 128 transitions, 322 flow [2024-11-28 03:13:33,142 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=177, PETRI_TRANSITIONS=128} [2024-11-28 03:13:33,143 INFO L279 CegarLoopForPetriNet]: 183 programPoint places, -6 predicate places. [2024-11-28 03:13:33,143 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 128 transitions, 322 flow [2024-11-28 03:13:33,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:33,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:33,144 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:33,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-28 03:13:33,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-28 03:13:33,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:33,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1627578837, now seen corresponding path program 1 times [2024-11-28 03:13:33,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:33,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086466497] [2024-11-28 03:13:33,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:33,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:33,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:33,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086466497] [2024-11-28 03:13:33,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086466497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:33,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:33,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:33,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536139773] [2024-11-28 03:13:33,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:33,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:33,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:33,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:33,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:33,493 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 479 [2024-11-28 03:13:33,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 128 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 402.2) internal successors, (2011), 5 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:33,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:33,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 479 [2024-11-28 03:13:33,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:33,589 INFO L124 PetriNetUnfolderBase]: 0/278 cut-off events. [2024-11-28 03:13:33,590 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-28 03:13:33,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 278 events. 0/278 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 160 event pairs, 0 based on Foata normal form. 1/278 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2024-11-28 03:13:33,591 INFO L140 encePairwiseOnDemand]: 474/479 looper letters, 19 selfloop transitions, 2 changer transitions 3/130 dead transitions. [2024-11-28 03:13:33,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 130 transitions, 374 flow [2024-11-28 03:13:33,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2015 transitions. [2024-11-28 03:13:33,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8413361169102297 [2024-11-28 03:13:33,596 INFO L175 Difference]: Start difference. First operand has 177 places, 128 transitions, 322 flow. Second operand 5 states and 2015 transitions. [2024-11-28 03:13:33,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 130 transitions, 374 flow [2024-11-28 03:13:33,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 130 transitions, 373 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:33,600 INFO L231 Difference]: Finished difference. Result has 157 places, 127 transitions, 327 flow [2024-11-28 03:13:33,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=327, PETRI_PLACES=157, PETRI_TRANSITIONS=127} [2024-11-28 03:13:33,600 INFO L279 CegarLoopForPetriNet]: 183 programPoint places, -26 predicate places. [2024-11-28 03:13:33,601 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 127 transitions, 327 flow [2024-11-28 03:13:33,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 402.2) internal successors, (2011), 5 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:33,602 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:33,602 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:33,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-28 03:13:33,602 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-28 03:13:33,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:33,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1539609392, now seen corresponding path program 1 times [2024-11-28 03:13:33,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:33,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20338644] [2024-11-28 03:13:33,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:33,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:33,640 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:33,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:33,691 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:33,691 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-28 03:13:33,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-28 03:13:33,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-28 03:13:33,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-28 03:13:33,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-28 03:13:33,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 03:13:33,693 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:33,693 WARN L246 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:33,693 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-11-28 03:13:33,810 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:33,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 515 places, 516 transitions, 1392 flow [2024-11-28 03:13:34,060 INFO L124 PetriNetUnfolderBase]: 67/863 cut-off events. [2024-11-28 03:13:34,060 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-11-28 03:13:34,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 863 events. 67/863 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2335 event pairs, 0 based on Foata normal form. 0/753 useless extension candidates. Maximal degree in co-relation 979. Up to 26 conditions per place. [2024-11-28 03:13:34,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 515 places, 516 transitions, 1392 flow [2024-11-28 03:13:34,068 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 169 transitions, 521 flow [2024-11-28 03:13:34,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:34,070 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:34,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-28 03:13:34,072 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:34,072 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:34,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:34,072 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:34,072 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:34,073 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 03:13:34,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:34,073 INFO L85 PathProgramCache]: Analyzing trace with hash -859600986, now seen corresponding path program 1 times [2024-11-28 03:13:34,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:34,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724194803] [2024-11-28 03:13:34,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:34,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:34,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:34,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:34,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724194803] [2024-11-28 03:13:34,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724194803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:34,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:34,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:34,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711319694] [2024-11-28 03:13:34,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:34,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:34,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:34,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:34,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:34,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 516 [2024-11-28 03:13:34,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 169 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:34,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:34,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 516 [2024-11-28 03:13:34,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:34,419 INFO L124 PetriNetUnfolderBase]: 27/666 cut-off events. [2024-11-28 03:13:34,419 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2024-11-28 03:13:34,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 666 events. 27/666 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1649 event pairs, 13 based on Foata normal form. 14/623 useless extension candidates. Maximal degree in co-relation 808. Up to 97 conditions per place. [2024-11-28 03:13:34,426 INFO L140 encePairwiseOnDemand]: 510/516 looper letters, 22 selfloop transitions, 2 changer transitions 1/165 dead transitions. [2024-11-28 03:13:34,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 165 transitions, 561 flow [2024-11-28 03:13:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:34,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2024-11-28 03:13:34,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8301033591731266 [2024-11-28 03:13:34,430 INFO L175 Difference]: Start difference. First operand has 192 places, 169 transitions, 521 flow. Second operand 3 states and 1285 transitions. [2024-11-28 03:13:34,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 165 transitions, 561 flow [2024-11-28 03:13:34,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 165 transitions, 450 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:34,437 INFO L231 Difference]: Finished difference. Result has 192 places, 164 transitions, 404 flow [2024-11-28 03:13:34,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=192, PETRI_TRANSITIONS=164} [2024-11-28 03:13:34,438 INFO L279 CegarLoopForPetriNet]: 192 programPoint places, 0 predicate places. [2024-11-28 03:13:34,438 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 164 transitions, 404 flow [2024-11-28 03:13:34,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:34,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:34,443 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:34,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-28 03:13:34,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 03:13:34,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:34,444 INFO L85 PathProgramCache]: Analyzing trace with hash 838101582, now seen corresponding path program 1 times [2024-11-28 03:13:34,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:34,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569797451] [2024-11-28 03:13:34,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:34,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:34,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:34,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569797451] [2024-11-28 03:13:34,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569797451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:34,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:34,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:34,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948103428] [2024-11-28 03:13:34,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:34,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:34,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:34,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:34,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:34,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 516 [2024-11-28 03:13:34,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 164 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:34,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:34,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 516 [2024-11-28 03:13:34,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:34,750 INFO L124 PetriNetUnfolderBase]: 14/597 cut-off events. [2024-11-28 03:13:34,751 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-28 03:13:34,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 597 events. 14/597 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1233 event pairs, 0 based on Foata normal form. 13/583 useless extension candidates. Maximal degree in co-relation 710. Up to 70 conditions per place. [2024-11-28 03:13:34,756 INFO L140 encePairwiseOnDemand]: 510/516 looper letters, 20 selfloop transitions, 1 changer transitions 24/159 dead transitions. [2024-11-28 03:13:34,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 159 transitions, 440 flow [2024-11-28 03:13:34,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:34,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:34,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1207 transitions. [2024-11-28 03:13:34,760 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7797157622739018 [2024-11-28 03:13:34,760 INFO L175 Difference]: Start difference. First operand has 192 places, 164 transitions, 404 flow. Second operand 3 states and 1207 transitions. [2024-11-28 03:13:34,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 159 transitions, 440 flow [2024-11-28 03:13:34,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 159 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:34,764 INFO L231 Difference]: Finished difference. Result has 186 places, 135 transitions, 342 flow [2024-11-28 03:13:34,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=186, PETRI_TRANSITIONS=135} [2024-11-28 03:13:34,765 INFO L279 CegarLoopForPetriNet]: 192 programPoint places, -6 predicate places. [2024-11-28 03:13:34,765 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 135 transitions, 342 flow [2024-11-28 03:13:34,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:34,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:34,767 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:34,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-28 03:13:34,768 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 03:13:34,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1656754778, now seen corresponding path program 1 times [2024-11-28 03:13:34,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:34,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598355054] [2024-11-28 03:13:34,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:34,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:34,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:34,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:34,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598355054] [2024-11-28 03:13:34,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598355054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:34,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:34,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:34,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321187724] [2024-11-28 03:13:34,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:34,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:34,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:34,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:35,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:35,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 516 [2024-11-28 03:13:35,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 135 transitions, 342 flow. Second operand has 5 states, 5 states have (on average 433.4) internal successors, (2167), 5 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:35,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:35,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 516 [2024-11-28 03:13:35,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:35,243 INFO L124 PetriNetUnfolderBase]: 0/298 cut-off events. [2024-11-28 03:13:35,243 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-28 03:13:35,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 298 events. 0/298 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 171 event pairs, 0 based on Foata normal form. 1/298 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2024-11-28 03:13:35,245 INFO L140 encePairwiseOnDemand]: 511/516 looper letters, 20 selfloop transitions, 2 changer transitions 3/137 dead transitions. [2024-11-28 03:13:35,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 137 transitions, 396 flow [2024-11-28 03:13:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:35,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2171 transitions. [2024-11-28 03:13:35,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8414728682170542 [2024-11-28 03:13:35,252 INFO L175 Difference]: Start difference. First operand has 186 places, 135 transitions, 342 flow. Second operand 5 states and 2171 transitions. [2024-11-28 03:13:35,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 137 transitions, 396 flow [2024-11-28 03:13:35,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 137 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:35,257 INFO L231 Difference]: Finished difference. Result has 166 places, 134 transitions, 347 flow [2024-11-28 03:13:35,257 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=347, PETRI_PLACES=166, PETRI_TRANSITIONS=134} [2024-11-28 03:13:35,258 INFO L279 CegarLoopForPetriNet]: 192 programPoint places, -26 predicate places. [2024-11-28 03:13:35,258 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 134 transitions, 347 flow [2024-11-28 03:13:35,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 433.4) internal successors, (2167), 5 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:35,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:35,259 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:35,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-28 03:13:35,260 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 03:13:35,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash 103480551, now seen corresponding path program 1 times [2024-11-28 03:13:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:35,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838825202] [2024-11-28 03:13:35,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:35,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:35,308 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:35,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:35,380 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:35,380 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-28 03:13:35,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-28 03:13:35,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-28 03:13:35,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-28 03:13:35,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-28 03:13:35,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-28 03:13:35,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-11-28 03:13:35,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-28 03:13:35,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-28 03:13:35,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-28 03:13:35,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-28 03:13:35,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-28 03:13:35,382 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:35,384 WARN L246 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:35,385 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-11-28 03:13:35,514 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:35,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 552 places, 553 transitions, 1522 flow [2024-11-28 03:13:35,769 INFO L124 PetriNetUnfolderBase]: 72/927 cut-off events. [2024-11-28 03:13:35,769 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-11-28 03:13:35,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 927 events. 72/927 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2641 event pairs, 0 based on Foata normal form. 0/809 useless extension candidates. Maximal degree in co-relation 1059. Up to 28 conditions per place. [2024-11-28 03:13:35,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 552 places, 553 transitions, 1522 flow [2024-11-28 03:13:35,778 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 176 transitions, 563 flow [2024-11-28 03:13:35,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:35,780 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:35,780 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-28 03:13:35,782 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:35,783 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:35,783 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:35,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:35,783 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:35,783 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 03:13:35,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:35,783 INFO L85 PathProgramCache]: Analyzing trace with hash 34590886, now seen corresponding path program 1 times [2024-11-28 03:13:35,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:35,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435656567] [2024-11-28 03:13:35,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:35,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:35,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:35,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:35,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435656567] [2024-11-28 03:13:35,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435656567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:35,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:35,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:35,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009371717] [2024-11-28 03:13:35,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:35,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:35,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:35,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:35,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:35,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 553 [2024-11-28 03:13:35,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 176 transitions, 563 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:35,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:35,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 553 [2024-11-28 03:13:35,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:36,167 INFO L124 PetriNetUnfolderBase]: 29/715 cut-off events. [2024-11-28 03:13:36,167 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2024-11-28 03:13:36,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 968 conditions, 715 events. 29/715 cut-off events. For 547/547 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1785 event pairs, 14 based on Foata normal form. 15/669 useless extension candidates. Maximal degree in co-relation 879. Up to 104 conditions per place. [2024-11-28 03:13:36,177 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 23 selfloop transitions, 2 changer transitions 1/172 dead transitions. [2024-11-28 03:13:36,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 172 transitions, 605 flow [2024-11-28 03:13:36,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:36,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2024-11-28 03:13:36,180 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8294153104279687 [2024-11-28 03:13:36,181 INFO L175 Difference]: Start difference. First operand has 201 places, 176 transitions, 563 flow. Second operand 3 states and 1376 transitions. [2024-11-28 03:13:36,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 172 transitions, 605 flow [2024-11-28 03:13:36,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 172 transitions, 472 flow, removed 66 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:36,187 INFO L231 Difference]: Finished difference. Result has 201 places, 171 transitions, 424 flow [2024-11-28 03:13:36,188 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=201, PETRI_TRANSITIONS=171} [2024-11-28 03:13:36,188 INFO L279 CegarLoopForPetriNet]: 201 programPoint places, 0 predicate places. [2024-11-28 03:13:36,189 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 171 transitions, 424 flow [2024-11-28 03:13:36,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:36,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:36,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:36,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-28 03:13:36,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 03:13:36,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:36,191 INFO L85 PathProgramCache]: Analyzing trace with hash -419957362, now seen corresponding path program 1 times [2024-11-28 03:13:36,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:36,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323782285] [2024-11-28 03:13:36,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:36,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:36,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:36,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323782285] [2024-11-28 03:13:36,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323782285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:36,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:36,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:36,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121728425] [2024-11-28 03:13:36,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:36,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:36,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:36,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:36,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:36,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 553 [2024-11-28 03:13:36,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 171 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:36,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:36,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 553 [2024-11-28 03:13:36,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:36,505 INFO L124 PetriNetUnfolderBase]: 15/641 cut-off events. [2024-11-28 03:13:36,506 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-28 03:13:36,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 641 events. 15/641 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1333 event pairs, 0 based on Foata normal form. 14/626 useless extension candidates. Maximal degree in co-relation 764. Up to 75 conditions per place. [2024-11-28 03:13:36,512 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 21 selfloop transitions, 1 changer transitions 24/166 dead transitions. [2024-11-28 03:13:36,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 166 transitions, 462 flow [2024-11-28 03:13:36,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:36,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1292 transitions. [2024-11-28 03:13:36,515 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7787823990355636 [2024-11-28 03:13:36,515 INFO L175 Difference]: Start difference. First operand has 201 places, 171 transitions, 424 flow. Second operand 3 states and 1292 transitions. [2024-11-28 03:13:36,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 166 transitions, 462 flow [2024-11-28 03:13:36,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 166 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:36,520 INFO L231 Difference]: Finished difference. Result has 195 places, 142 transitions, 362 flow [2024-11-28 03:13:36,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=195, PETRI_TRANSITIONS=142} [2024-11-28 03:13:36,521 INFO L279 CegarLoopForPetriNet]: 201 programPoint places, -6 predicate places. [2024-11-28 03:13:36,521 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 142 transitions, 362 flow [2024-11-28 03:13:36,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:36,521 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:36,522 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:36,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-28 03:13:36,522 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 03:13:36,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:36,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2144908335, now seen corresponding path program 1 times [2024-11-28 03:13:36,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:36,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347374703] [2024-11-28 03:13:36,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:36,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:36,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:36,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347374703] [2024-11-28 03:13:36,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347374703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:36,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:36,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:36,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973002401] [2024-11-28 03:13:36,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:36,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:36,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:36,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:36,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:36,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 553 [2024-11-28 03:13:36,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 142 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 464.6) internal successors, (2323), 5 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:36,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:36,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 553 [2024-11-28 03:13:36,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:37,029 INFO L124 PetriNetUnfolderBase]: 0/318 cut-off events. [2024-11-28 03:13:37,029 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-28 03:13:37,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 318 events. 0/318 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 183 event pairs, 0 based on Foata normal form. 1/318 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2024-11-28 03:13:37,030 INFO L140 encePairwiseOnDemand]: 548/553 looper letters, 21 selfloop transitions, 2 changer transitions 3/144 dead transitions. [2024-11-28 03:13:37,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 144 transitions, 418 flow [2024-11-28 03:13:37,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2327 transitions. [2024-11-28 03:13:37,035 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8415913200723327 [2024-11-28 03:13:37,036 INFO L175 Difference]: Start difference. First operand has 195 places, 142 transitions, 362 flow. Second operand 5 states and 2327 transitions. [2024-11-28 03:13:37,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 144 transitions, 418 flow [2024-11-28 03:13:37,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 144 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:37,040 INFO L231 Difference]: Finished difference. Result has 175 places, 141 transitions, 367 flow [2024-11-28 03:13:37,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=367, PETRI_PLACES=175, PETRI_TRANSITIONS=141} [2024-11-28 03:13:37,041 INFO L279 CegarLoopForPetriNet]: 201 programPoint places, -26 predicate places. [2024-11-28 03:13:37,041 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 141 transitions, 367 flow [2024-11-28 03:13:37,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 464.6) internal successors, (2323), 5 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:37,042 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:37,043 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:37,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-28 03:13:37,043 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 03:13:37,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:37,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1245539449, now seen corresponding path program 1 times [2024-11-28 03:13:37,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:37,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836822420] [2024-11-28 03:13:37,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:37,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:37,090 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:37,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:37,155 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:37,155 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-28 03:13:37,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-28 03:13:37,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-28 03:13:37,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-28 03:13:37,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-28 03:13:37,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-28 03:13:37,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-11-28 03:13:37,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-28 03:13:37,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-28 03:13:37,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-28 03:13:37,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-28 03:13:37,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-28 03:13:37,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-28 03:13:37,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-28 03:13:37,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-28 03:13:37,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-28 03:13:37,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-28 03:13:37,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-28 03:13:37,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-28 03:13:37,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-28 03:13:37,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-28 03:13:37,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-28 03:13:37,158 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:37,159 WARN L246 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:37,159 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-11-28 03:13:37,370 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:37,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 589 places, 590 transitions, 1656 flow [2024-11-28 03:13:37,697 INFO L124 PetriNetUnfolderBase]: 77/991 cut-off events. [2024-11-28 03:13:37,697 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-11-28 03:13:37,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 991 events. 77/991 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2722 event pairs, 0 based on Foata normal form. 0/865 useless extension candidates. Maximal degree in co-relation 1140. Up to 30 conditions per place. [2024-11-28 03:13:37,707 INFO L82 GeneralOperation]: Start removeDead. Operand has 589 places, 590 transitions, 1656 flow [2024-11-28 03:13:37,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 183 transitions, 607 flow [2024-11-28 03:13:37,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:37,713 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:37,713 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-28 03:13:37,717 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:37,717 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:37,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:37,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:37,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:37,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-28 03:13:37,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash 879877798, now seen corresponding path program 1 times [2024-11-28 03:13:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:37,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862439459] [2024-11-28 03:13:37,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:37,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:37,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:37,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862439459] [2024-11-28 03:13:37,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862439459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:37,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:37,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:37,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829445347] [2024-11-28 03:13:37,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:37,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:37,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:37,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:37,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:37,907 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 590 [2024-11-28 03:13:37,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 183 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:37,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:37,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 590 [2024-11-28 03:13:37,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:38,209 INFO L124 PetriNetUnfolderBase]: 31/764 cut-off events. [2024-11-28 03:13:38,210 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2024-11-28 03:13:38,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 764 events. 31/764 cut-off events. For 666/666 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1914 event pairs, 15 based on Foata normal form. 16/715 useless extension candidates. Maximal degree in co-relation 951. Up to 111 conditions per place. [2024-11-28 03:13:38,223 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 24 selfloop transitions, 2 changer transitions 1/179 dead transitions. [2024-11-28 03:13:38,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 179 transitions, 651 flow [2024-11-28 03:13:38,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:38,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1467 transitions. [2024-11-28 03:13:38,228 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8288135593220339 [2024-11-28 03:13:38,229 INFO L175 Difference]: Start difference. First operand has 210 places, 183 transitions, 607 flow. Second operand 3 states and 1467 transitions. [2024-11-28 03:13:38,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 179 transitions, 651 flow [2024-11-28 03:13:38,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 179 transitions, 494 flow, removed 78 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:38,237 INFO L231 Difference]: Finished difference. Result has 210 places, 178 transitions, 444 flow [2024-11-28 03:13:38,238 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=210, PETRI_TRANSITIONS=178} [2024-11-28 03:13:38,239 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places. [2024-11-28 03:13:38,239 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 178 transitions, 444 flow [2024-11-28 03:13:38,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:38,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:38,240 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:38,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-28 03:13:38,240 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-28 03:13:38,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:38,241 INFO L85 PathProgramCache]: Analyzing trace with hash -558356722, now seen corresponding path program 1 times [2024-11-28 03:13:38,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:38,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829102578] [2024-11-28 03:13:38,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:38,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:38,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:38,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:38,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829102578] [2024-11-28 03:13:38,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829102578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:38,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:38,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:38,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553265123] [2024-11-28 03:13:38,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:38,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:38,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:38,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:38,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:38,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 590 [2024-11-28 03:13:38,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 178 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 450.0) internal successors, (1350), 3 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:38,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:38,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 590 [2024-11-28 03:13:38,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:38,611 INFO L124 PetriNetUnfolderBase]: 16/685 cut-off events. [2024-11-28 03:13:38,611 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-28 03:13:38,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 685 events. 16/685 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1434 event pairs, 0 based on Foata normal form. 15/669 useless extension candidates. Maximal degree in co-relation 818. Up to 80 conditions per place. [2024-11-28 03:13:38,621 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 22 selfloop transitions, 1 changer transitions 24/173 dead transitions. [2024-11-28 03:13:38,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 173 transitions, 484 flow [2024-11-28 03:13:38,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:38,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1377 transitions. [2024-11-28 03:13:38,625 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7779661016949152 [2024-11-28 03:13:38,626 INFO L175 Difference]: Start difference. First operand has 210 places, 178 transitions, 444 flow. Second operand 3 states and 1377 transitions. [2024-11-28 03:13:38,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 173 transitions, 484 flow [2024-11-28 03:13:38,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 173 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:38,631 INFO L231 Difference]: Finished difference. Result has 204 places, 149 transitions, 382 flow [2024-11-28 03:13:38,631 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=204, PETRI_TRANSITIONS=149} [2024-11-28 03:13:38,633 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -6 predicate places. [2024-11-28 03:13:38,633 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 149 transitions, 382 flow [2024-11-28 03:13:38,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.0) internal successors, (1350), 3 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:38,634 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:38,634 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:38,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-28 03:13:38,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-28 03:13:38,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:38,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1662575078, now seen corresponding path program 1 times [2024-11-28 03:13:38,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:38,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081696058] [2024-11-28 03:13:38,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:38,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:38,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081696058] [2024-11-28 03:13:38,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081696058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:38,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:38,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:38,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936914184] [2024-11-28 03:13:38,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:38,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:38,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:38,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:38,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:39,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 590 [2024-11-28 03:13:39,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 149 transitions, 382 flow. Second operand has 5 states, 5 states have (on average 495.8) internal successors, (2479), 5 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:39,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:39,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 590 [2024-11-28 03:13:39,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:39,135 INFO L124 PetriNetUnfolderBase]: 0/338 cut-off events. [2024-11-28 03:13:39,135 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-28 03:13:39,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 338 events. 0/338 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 196 event pairs, 0 based on Foata normal form. 1/338 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2024-11-28 03:13:39,136 INFO L140 encePairwiseOnDemand]: 585/590 looper letters, 22 selfloop transitions, 2 changer transitions 3/151 dead transitions. [2024-11-28 03:13:39,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 151 transitions, 440 flow [2024-11-28 03:13:39,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2483 transitions. [2024-11-28 03:13:39,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8416949152542373 [2024-11-28 03:13:39,140 INFO L175 Difference]: Start difference. First operand has 204 places, 149 transitions, 382 flow. Second operand 5 states and 2483 transitions. [2024-11-28 03:13:39,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 151 transitions, 440 flow [2024-11-28 03:13:39,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 151 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:39,145 INFO L231 Difference]: Finished difference. Result has 184 places, 148 transitions, 387 flow [2024-11-28 03:13:39,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=184, PETRI_TRANSITIONS=148} [2024-11-28 03:13:39,146 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -26 predicate places. [2024-11-28 03:13:39,146 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 148 transitions, 387 flow [2024-11-28 03:13:39,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 495.8) internal successors, (2479), 5 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:39,147 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:39,147 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:39,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-28 03:13:39,147 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-28 03:13:39,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:39,149 INFO L85 PathProgramCache]: Analyzing trace with hash 606795120, now seen corresponding path program 1 times [2024-11-28 03:13:39,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:39,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493167201] [2024-11-28 03:13:39,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:39,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:39,201 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:39,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:39,300 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:39,300 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-28 03:13:39,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-28 03:13:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-28 03:13:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-28 03:13:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-28 03:13:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-28 03:13:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 22 remaining) [2024-11-28 03:13:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-28 03:13:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-28 03:13:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-28 03:13:39,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-28 03:13:39,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-28 03:13:39,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-28 03:13:39,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-28 03:13:39,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-28 03:13:39,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-28 03:13:39,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-28 03:13:39,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-28 03:13:39,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-28 03:13:39,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-28 03:13:39,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-28 03:13:39,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-28 03:13:39,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-28 03:13:39,303 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:39,304 WARN L246 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:39,304 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-11-28 03:13:39,446 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:39,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 626 places, 627 transitions, 1794 flow [2024-11-28 03:13:39,732 INFO L124 PetriNetUnfolderBase]: 82/1055 cut-off events. [2024-11-28 03:13:39,732 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2024-11-28 03:13:39,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 1055 events. 82/1055 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2889 event pairs, 0 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 1222. Up to 32 conditions per place. [2024-11-28 03:13:39,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 626 places, 627 transitions, 1794 flow [2024-11-28 03:13:39,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 190 transitions, 653 flow [2024-11-28 03:13:39,750 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:39,750 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:39,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-28 03:13:39,752 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:39,752 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:39,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:39,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:39,753 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:39,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:13:39,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:39,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1676259750, now seen corresponding path program 1 times [2024-11-28 03:13:39,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:39,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342778867] [2024-11-28 03:13:39,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:39,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:39,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342778867] [2024-11-28 03:13:39,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342778867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:39,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:39,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:39,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755361297] [2024-11-28 03:13:39,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:39,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:39,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:39,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:39,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 509 out of 627 [2024-11-28 03:13:39,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 190 transitions, 653 flow. Second operand has 3 states, 3 states have (on average 510.3333333333333) internal successors, (1531), 3 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:39,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:39,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 509 of 627 [2024-11-28 03:13:39,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:40,177 INFO L124 PetriNetUnfolderBase]: 33/813 cut-off events. [2024-11-28 03:13:40,177 INFO L125 PetriNetUnfolderBase]: For 801/801 co-relation queries the response was YES. [2024-11-28 03:13:40,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1117 conditions, 813 events. 33/813 cut-off events. For 801/801 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2129 event pairs, 16 based on Foata normal form. 33/777 useless extension candidates. Maximal degree in co-relation 1024. Up to 118 conditions per place. [2024-11-28 03:13:40,186 INFO L140 encePairwiseOnDemand]: 621/627 looper letters, 25 selfloop transitions, 2 changer transitions 1/186 dead transitions. [2024-11-28 03:13:40,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 186 transitions, 699 flow [2024-11-28 03:13:40,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:40,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1558 transitions. [2024-11-28 03:13:40,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2024-11-28 03:13:40,189 INFO L175 Difference]: Start difference. First operand has 219 places, 190 transitions, 653 flow. Second operand 3 states and 1558 transitions. [2024-11-28 03:13:40,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 186 transitions, 699 flow [2024-11-28 03:13:40,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 186 transitions, 516 flow, removed 91 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:40,196 INFO L231 Difference]: Finished difference. Result has 219 places, 185 transitions, 464 flow [2024-11-28 03:13:40,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=627, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=464, PETRI_PLACES=219, PETRI_TRANSITIONS=185} [2024-11-28 03:13:40,197 INFO L279 CegarLoopForPetriNet]: 219 programPoint places, 0 predicate places. [2024-11-28 03:13:40,198 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 185 transitions, 464 flow [2024-11-28 03:13:40,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 510.3333333333333) internal successors, (1531), 3 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:40,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:40,199 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:40,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-28 03:13:40,199 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:13:40,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash 422903502, now seen corresponding path program 1 times [2024-11-28 03:13:40,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:40,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048610121] [2024-11-28 03:13:40,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:40,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:40,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:40,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048610121] [2024-11-28 03:13:40,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048610121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:40,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:40,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:40,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774097985] [2024-11-28 03:13:40,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:40,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:40,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:40,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:40,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:40,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 627 [2024-11-28 03:13:40,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 185 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 478.0) internal successors, (1434), 3 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:40,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:40,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 627 [2024-11-28 03:13:40,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:40,693 INFO L124 PetriNetUnfolderBase]: 17/729 cut-off events. [2024-11-28 03:13:40,693 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-28 03:13:40,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 729 events. 17/729 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1565 event pairs, 0 based on Foata normal form. 16/712 useless extension candidates. Maximal degree in co-relation 872. Up to 85 conditions per place. [2024-11-28 03:13:40,700 INFO L140 encePairwiseOnDemand]: 621/627 looper letters, 23 selfloop transitions, 1 changer transitions 24/180 dead transitions. [2024-11-28 03:13:40,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 180 transitions, 506 flow [2024-11-28 03:13:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1462 transitions. [2024-11-28 03:13:40,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7772461456671983 [2024-11-28 03:13:40,703 INFO L175 Difference]: Start difference. First operand has 219 places, 185 transitions, 464 flow. Second operand 3 states and 1462 transitions. [2024-11-28 03:13:40,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 180 transitions, 506 flow [2024-11-28 03:13:40,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 180 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:40,708 INFO L231 Difference]: Finished difference. Result has 213 places, 156 transitions, 402 flow [2024-11-28 03:13:40,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=627, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=213, PETRI_TRANSITIONS=156} [2024-11-28 03:13:40,709 INFO L279 CegarLoopForPetriNet]: 219 programPoint places, -6 predicate places. [2024-11-28 03:13:40,709 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 156 transitions, 402 flow [2024-11-28 03:13:40,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.0) internal successors, (1434), 3 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:40,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:40,710 INFO L206 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:40,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-28 03:13:40,710 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:13:40,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:40,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1623123691, now seen corresponding path program 1 times [2024-11-28 03:13:40,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:40,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323481220] [2024-11-28 03:13:40,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:40,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:40,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:40,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323481220] [2024-11-28 03:13:40,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323481220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:40,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:40,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:40,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501129494] [2024-11-28 03:13:40,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:40,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:40,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:40,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:40,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:41,033 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 522 out of 627 [2024-11-28 03:13:41,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 156 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 527.0) internal successors, (2635), 5 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:41,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:41,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 522 of 627 [2024-11-28 03:13:41,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:41,181 INFO L124 PetriNetUnfolderBase]: 0/358 cut-off events. [2024-11-28 03:13:41,181 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-28 03:13:41,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 358 events. 0/358 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 207 event pairs, 0 based on Foata normal form. 1/358 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2024-11-28 03:13:41,182 INFO L140 encePairwiseOnDemand]: 622/627 looper letters, 23 selfloop transitions, 2 changer transitions 3/158 dead transitions. [2024-11-28 03:13:41,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 158 transitions, 462 flow [2024-11-28 03:13:41,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:41,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2639 transitions. [2024-11-28 03:13:41,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8417862838915471 [2024-11-28 03:13:41,186 INFO L175 Difference]: Start difference. First operand has 213 places, 156 transitions, 402 flow. Second operand 5 states and 2639 transitions. [2024-11-28 03:13:41,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 158 transitions, 462 flow [2024-11-28 03:13:41,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 158 transitions, 461 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:41,191 INFO L231 Difference]: Finished difference. Result has 193 places, 155 transitions, 407 flow [2024-11-28 03:13:41,191 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=627, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=407, PETRI_PLACES=193, PETRI_TRANSITIONS=155} [2024-11-28 03:13:41,192 INFO L279 CegarLoopForPetriNet]: 219 programPoint places, -26 predicate places. [2024-11-28 03:13:41,192 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 155 transitions, 407 flow [2024-11-28 03:13:41,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 527.0) internal successors, (2635), 5 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:41,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:41,194 INFO L206 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:41,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-28 03:13:41,194 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 03:13:41,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:41,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1451958014, now seen corresponding path program 1 times [2024-11-28 03:13:41,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:41,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320067197] [2024-11-28 03:13:41,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:41,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:41,245 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:41,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:41,325 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:41,325 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-28 03:13:41,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-28 03:13:41,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-28 03:13:41,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-28 03:13:41,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-28 03:13:41,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-28 03:13:41,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-28 03:13:41,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-28 03:13:41,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-28 03:13:41,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-28 03:13:41,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-28 03:13:41,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-28 03:13:41,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-28 03:13:41,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-28 03:13:41,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-28 03:13:41,328 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:41,329 WARN L246 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:41,329 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-11-28 03:13:41,520 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:41,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 663 places, 664 transitions, 1936 flow [2024-11-28 03:13:41,801 INFO L124 PetriNetUnfolderBase]: 87/1119 cut-off events. [2024-11-28 03:13:41,801 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2024-11-28 03:13:41,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 1119 events. 87/1119 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3066 event pairs, 0 based on Foata normal form. 0/977 useless extension candidates. Maximal degree in co-relation 1305. Up to 34 conditions per place. [2024-11-28 03:13:41,813 INFO L82 GeneralOperation]: Start removeDead. Operand has 663 places, 664 transitions, 1936 flow [2024-11-28 03:13:41,817 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 197 transitions, 701 flow [2024-11-28 03:13:41,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:41,822 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:41,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-28 03:13:41,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:41,824 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:41,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:41,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:41,825 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:41,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-28 03:13:41,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1871230554, now seen corresponding path program 1 times [2024-11-28 03:13:41,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:41,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096105014] [2024-11-28 03:13:41,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:41,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:41,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:41,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096105014] [2024-11-28 03:13:41,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096105014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:41,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:41,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:41,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853953108] [2024-11-28 03:13:41,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:41,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:41,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:41,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:41,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:42,003 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 539 out of 664 [2024-11-28 03:13:42,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 197 transitions, 701 flow. Second operand has 3 states, 3 states have (on average 540.3333333333334) internal successors, (1621), 3 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:42,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:42,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 539 of 664 [2024-11-28 03:13:42,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:42,285 INFO L124 PetriNetUnfolderBase]: 35/862 cut-off events. [2024-11-28 03:13:42,286 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-28 03:13:42,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1193 conditions, 862 events. 35/862 cut-off events. For 953/953 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2178 event pairs, 17 based on Foata normal form. 18/807 useless extension candidates. Maximal degree in co-relation 1098. Up to 125 conditions per place. [2024-11-28 03:13:42,296 INFO L140 encePairwiseOnDemand]: 658/664 looper letters, 26 selfloop transitions, 2 changer transitions 1/193 dead transitions. [2024-11-28 03:13:42,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 193 transitions, 749 flow [2024-11-28 03:13:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:42,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1649 transitions. [2024-11-28 03:13:42,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8278112449799196 [2024-11-28 03:13:42,299 INFO L175 Difference]: Start difference. First operand has 228 places, 197 transitions, 701 flow. Second operand 3 states and 1649 transitions. [2024-11-28 03:13:42,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 193 transitions, 749 flow [2024-11-28 03:13:42,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 193 transitions, 538 flow, removed 105 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:42,308 INFO L231 Difference]: Finished difference. Result has 228 places, 192 transitions, 484 flow [2024-11-28 03:13:42,308 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=664, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=228, PETRI_TRANSITIONS=192} [2024-11-28 03:13:42,309 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, 0 predicate places. [2024-11-28 03:13:42,309 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 192 transitions, 484 flow [2024-11-28 03:13:42,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 540.3333333333334) internal successors, (1621), 3 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:42,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:42,310 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:42,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-28 03:13:42,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-28 03:13:42,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:42,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1771143986, now seen corresponding path program 1 times [2024-11-28 03:13:42,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:42,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121822442] [2024-11-28 03:13:42,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:42,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:42,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:42,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121822442] [2024-11-28 03:13:42,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121822442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:42,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:42,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352959089] [2024-11-28 03:13:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:42,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:42,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:42,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:42,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:42,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 664 [2024-11-28 03:13:42,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 192 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:42,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:42,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 664 [2024-11-28 03:13:42,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:42,679 INFO L124 PetriNetUnfolderBase]: 18/773 cut-off events. [2024-11-28 03:13:42,679 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-28 03:13:42,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 966 conditions, 773 events. 18/773 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1633 event pairs, 0 based on Foata normal form. 17/755 useless extension candidates. Maximal degree in co-relation 926. Up to 90 conditions per place. [2024-11-28 03:13:42,687 INFO L140 encePairwiseOnDemand]: 658/664 looper letters, 24 selfloop transitions, 1 changer transitions 24/187 dead transitions. [2024-11-28 03:13:42,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 187 transitions, 528 flow [2024-11-28 03:13:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2024-11-28 03:13:42,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7766064257028112 [2024-11-28 03:13:42,690 INFO L175 Difference]: Start difference. First operand has 228 places, 192 transitions, 484 flow. Second operand 3 states and 1547 transitions. [2024-11-28 03:13:42,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 187 transitions, 528 flow [2024-11-28 03:13:42,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 187 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:42,696 INFO L231 Difference]: Finished difference. Result has 222 places, 163 transitions, 422 flow [2024-11-28 03:13:42,696 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=664, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=222, PETRI_TRANSITIONS=163} [2024-11-28 03:13:42,697 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -6 predicate places. [2024-11-28 03:13:42,697 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 163 transitions, 422 flow [2024-11-28 03:13:42,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:42,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:42,698 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:42,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-28 03:13:42,699 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-28 03:13:42,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:42,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1397869730, now seen corresponding path program 1 times [2024-11-28 03:13:42,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:42,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378375770] [2024-11-28 03:13:42,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:42,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:42,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:42,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378375770] [2024-11-28 03:13:42,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378375770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:42,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:42,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:42,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609670553] [2024-11-28 03:13:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:42,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:42,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:42,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:42,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:43,063 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 664 [2024-11-28 03:13:43,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 163 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 558.2) internal successors, (2791), 5 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:43,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:43,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 664 [2024-11-28 03:13:43,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:43,204 INFO L124 PetriNetUnfolderBase]: 0/378 cut-off events. [2024-11-28 03:13:43,204 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-28 03:13:43,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 378 events. 0/378 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 219 event pairs, 0 based on Foata normal form. 1/378 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2024-11-28 03:13:43,206 INFO L140 encePairwiseOnDemand]: 659/664 looper letters, 24 selfloop transitions, 2 changer transitions 3/165 dead transitions. [2024-11-28 03:13:43,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 165 transitions, 484 flow [2024-11-28 03:13:43,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:43,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:43,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2795 transitions. [2024-11-28 03:13:43,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8418674698795181 [2024-11-28 03:13:43,209 INFO L175 Difference]: Start difference. First operand has 222 places, 163 transitions, 422 flow. Second operand 5 states and 2795 transitions. [2024-11-28 03:13:43,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 165 transitions, 484 flow [2024-11-28 03:13:43,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 165 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:43,214 INFO L231 Difference]: Finished difference. Result has 202 places, 162 transitions, 427 flow [2024-11-28 03:13:43,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=664, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=202, PETRI_TRANSITIONS=162} [2024-11-28 03:13:43,215 INFO L279 CegarLoopForPetriNet]: 228 programPoint places, -26 predicate places. [2024-11-28 03:13:43,215 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 162 transitions, 427 flow [2024-11-28 03:13:43,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 558.2) internal successors, (2791), 5 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:43,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:43,216 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:43,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-28 03:13:43,217 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-28 03:13:43,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:43,219 INFO L85 PathProgramCache]: Analyzing trace with hash -279825251, now seen corresponding path program 1 times [2024-11-28 03:13:43,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:43,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729171953] [2024-11-28 03:13:43,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:43,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:43,344 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:43,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:43,436 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:43,436 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-28 03:13:43,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2024-11-28 03:13:43,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-11-28 03:13:43,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-11-28 03:13:43,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-11-28 03:13:43,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-11-28 03:13:43,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 24 remaining) [2024-11-28 03:13:43,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-11-28 03:13:43,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-11-28 03:13:43,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-11-28 03:13:43,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-11-28 03:13:43,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-11-28 03:13:43,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-11-28 03:13:43,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-11-28 03:13:43,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-11-28 03:13:43,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-11-28 03:13:43,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-11-28 03:13:43,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-11-28 03:13:43,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-11-28 03:13:43,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-11-28 03:13:43,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-11-28 03:13:43,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-11-28 03:13:43,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-11-28 03:13:43,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-11-28 03:13:43,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-28 03:13:43,443 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:43,444 WARN L246 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:43,444 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-11-28 03:13:43,585 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:43,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 700 places, 701 transitions, 2082 flow [2024-11-28 03:13:43,883 INFO L124 PetriNetUnfolderBase]: 92/1183 cut-off events. [2024-11-28 03:13:43,883 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-28 03:13:43,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 1183 events. 92/1183 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3265 event pairs, 0 based on Foata normal form. 0/1033 useless extension candidates. Maximal degree in co-relation 1389. Up to 36 conditions per place. [2024-11-28 03:13:43,897 INFO L82 GeneralOperation]: Start removeDead. Operand has 700 places, 701 transitions, 2082 flow [2024-11-28 03:13:43,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 204 transitions, 751 flow [2024-11-28 03:13:43,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:43,907 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:43,907 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-28 03:13:43,909 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:43,909 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:43,909 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:43,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:43,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:43,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:13:43,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:43,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1172658522, now seen corresponding path program 1 times [2024-11-28 03:13:43,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:43,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235667082] [2024-11-28 03:13:43,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:43,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:43,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:43,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:43,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235667082] [2024-11-28 03:13:43,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235667082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:43,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:43,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:43,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783586932] [2024-11-28 03:13:43,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:43,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:43,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:43,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:43,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:44,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 701 [2024-11-28 03:13:44,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 204 transitions, 751 flow. Second operand has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:44,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:44,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 701 [2024-11-28 03:13:44,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:44,350 INFO L124 PetriNetUnfolderBase]: 37/911 cut-off events. [2024-11-28 03:13:44,350 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-28 03:13:44,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1270 conditions, 911 events. 37/911 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2477 event pairs, 18 based on Foata normal form. 37/871 useless extension candidates. Maximal degree in co-relation 1173. Up to 132 conditions per place. [2024-11-28 03:13:44,362 INFO L140 encePairwiseOnDemand]: 695/701 looper letters, 27 selfloop transitions, 2 changer transitions 1/200 dead transitions. [2024-11-28 03:13:44,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 200 transitions, 801 flow [2024-11-28 03:13:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1740 transitions. [2024-11-28 03:13:44,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8273894436519258 [2024-11-28 03:13:44,365 INFO L175 Difference]: Start difference. First operand has 237 places, 204 transitions, 751 flow. Second operand 3 states and 1740 transitions. [2024-11-28 03:13:44,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 200 transitions, 801 flow [2024-11-28 03:13:44,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 200 transitions, 560 flow, removed 120 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:44,374 INFO L231 Difference]: Finished difference. Result has 237 places, 199 transitions, 504 flow [2024-11-28 03:13:44,374 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=701, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=237, PETRI_TRANSITIONS=199} [2024-11-28 03:13:44,375 INFO L279 CegarLoopForPetriNet]: 237 programPoint places, 0 predicate places. [2024-11-28 03:13:44,375 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 199 transitions, 504 flow [2024-11-28 03:13:44,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:44,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:44,377 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:44,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-28 03:13:44,377 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:13:44,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1449435406, now seen corresponding path program 1 times [2024-11-28 03:13:44,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:44,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124229772] [2024-11-28 03:13:44,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:44,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:44,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:44,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124229772] [2024-11-28 03:13:44,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124229772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:44,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:44,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:44,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295171990] [2024-11-28 03:13:44,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:44,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:44,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:44,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:44,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:44,523 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 533 out of 701 [2024-11-28 03:13:44,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 199 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:44,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:44,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 533 of 701 [2024-11-28 03:13:44,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:44,776 INFO L124 PetriNetUnfolderBase]: 19/817 cut-off events. [2024-11-28 03:13:44,777 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-28 03:13:44,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 817 events. 19/817 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1855 event pairs, 0 based on Foata normal form. 18/798 useless extension candidates. Maximal degree in co-relation 980. Up to 95 conditions per place. [2024-11-28 03:13:44,785 INFO L140 encePairwiseOnDemand]: 695/701 looper letters, 25 selfloop transitions, 1 changer transitions 24/194 dead transitions. [2024-11-28 03:13:44,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 194 transitions, 550 flow [2024-11-28 03:13:44,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1632 transitions. [2024-11-28 03:13:44,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.776034236804565 [2024-11-28 03:13:44,789 INFO L175 Difference]: Start difference. First operand has 237 places, 199 transitions, 504 flow. Second operand 3 states and 1632 transitions. [2024-11-28 03:13:44,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 194 transitions, 550 flow [2024-11-28 03:13:44,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 194 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:44,794 INFO L231 Difference]: Finished difference. Result has 231 places, 170 transitions, 442 flow [2024-11-28 03:13:44,794 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=701, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=231, PETRI_TRANSITIONS=170} [2024-11-28 03:13:44,797 INFO L279 CegarLoopForPetriNet]: 237 programPoint places, -6 predicate places. [2024-11-28 03:13:44,797 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 170 transitions, 442 flow [2024-11-28 03:13:44,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:44,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:44,798 INFO L206 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:44,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-28 03:13:44,799 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:13:44,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:44,802 INFO L85 PathProgramCache]: Analyzing trace with hash -131647649, now seen corresponding path program 1 times [2024-11-28 03:13:44,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:44,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785550867] [2024-11-28 03:13:44,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:44,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:45,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:45,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785550867] [2024-11-28 03:13:45,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785550867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:45,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:45,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:45,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199364665] [2024-11-28 03:13:45,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:45,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:45,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:45,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:45,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:45,293 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 701 [2024-11-28 03:13:45,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 170 transitions, 442 flow. Second operand has 5 states, 5 states have (on average 589.4) internal successors, (2947), 5 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:45,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:45,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 701 [2024-11-28 03:13:45,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:45,511 INFO L124 PetriNetUnfolderBase]: 0/398 cut-off events. [2024-11-28 03:13:45,511 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-28 03:13:45,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 398 events. 0/398 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 231 event pairs, 0 based on Foata normal form. 1/398 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2024-11-28 03:13:45,512 INFO L140 encePairwiseOnDemand]: 696/701 looper letters, 25 selfloop transitions, 2 changer transitions 3/172 dead transitions. [2024-11-28 03:13:45,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 172 transitions, 506 flow [2024-11-28 03:13:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2951 transitions. [2024-11-28 03:13:45,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8419400855920114 [2024-11-28 03:13:45,519 INFO L175 Difference]: Start difference. First operand has 231 places, 170 transitions, 442 flow. Second operand 5 states and 2951 transitions. [2024-11-28 03:13:45,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 172 transitions, 506 flow [2024-11-28 03:13:45,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 172 transitions, 505 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:45,527 INFO L231 Difference]: Finished difference. Result has 211 places, 169 transitions, 447 flow [2024-11-28 03:13:45,527 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=701, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=447, PETRI_PLACES=211, PETRI_TRANSITIONS=169} [2024-11-28 03:13:45,528 INFO L279 CegarLoopForPetriNet]: 237 programPoint places, -26 predicate places. [2024-11-28 03:13:45,528 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 169 transitions, 447 flow [2024-11-28 03:13:45,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 589.4) internal successors, (2947), 5 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:45,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:45,529 INFO L206 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:45,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-28 03:13:45,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-28 03:13:45,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:45,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1606807201, now seen corresponding path program 1 times [2024-11-28 03:13:45,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:45,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222880544] [2024-11-28 03:13:45,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:45,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:45,610 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:45,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:45,736 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:45,736 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-28 03:13:45,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-28 03:13:45,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-28 03:13:45,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-28 03:13:45,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-28 03:13:45,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-28 03:13:45,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2024-11-28 03:13:45,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-28 03:13:45,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-28 03:13:45,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-28 03:13:45,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-28 03:13:45,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-28 03:13:45,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-28 03:13:45,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-28 03:13:45,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-28 03:13:45,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-28 03:13:45,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-28 03:13:45,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-28 03:13:45,739 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:45,740 WARN L246 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:45,740 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-11-28 03:13:45,896 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:45,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 737 places, 738 transitions, 2232 flow [2024-11-28 03:13:46,244 INFO L124 PetriNetUnfolderBase]: 97/1247 cut-off events. [2024-11-28 03:13:46,244 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-11-28 03:13:46,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1511 conditions, 1247 events. 97/1247 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3633 event pairs, 0 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1474. Up to 38 conditions per place. [2024-11-28 03:13:46,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 737 places, 738 transitions, 2232 flow [2024-11-28 03:13:46,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 211 transitions, 803 flow [2024-11-28 03:13:46,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:46,266 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:46,266 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-28 03:13:46,268 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:46,268 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:46,268 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:46,268 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:46,268 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:46,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 03:13:46,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:46,270 INFO L85 PathProgramCache]: Analyzing trace with hash -522991450, now seen corresponding path program 1 times [2024-11-28 03:13:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:46,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021717747] [2024-11-28 03:13:46,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:46,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:46,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021717747] [2024-11-28 03:13:46,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021717747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:46,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:46,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:46,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206081443] [2024-11-28 03:13:46,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:46,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:46,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:46,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:46,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:46,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 738 [2024-11-28 03:13:46,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 211 transitions, 803 flow. Second operand has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:46,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:46,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 738 [2024-11-28 03:13:46,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:46,759 INFO L124 PetriNetUnfolderBase]: 39/960 cut-off events. [2024-11-28 03:13:46,759 INFO L125 PetriNetUnfolderBase]: For 1312/1312 co-relation queries the response was YES. [2024-11-28 03:13:46,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 960 events. 39/960 cut-off events. For 1312/1312 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2535 event pairs, 19 based on Foata normal form. 39/918 useless extension candidates. Maximal degree in co-relation 1249. Up to 139 conditions per place. [2024-11-28 03:13:46,771 INFO L140 encePairwiseOnDemand]: 732/738 looper letters, 28 selfloop transitions, 2 changer transitions 1/207 dead transitions. [2024-11-28 03:13:46,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 207 transitions, 855 flow [2024-11-28 03:13:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:46,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2024-11-28 03:13:46,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8270099367660343 [2024-11-28 03:13:46,775 INFO L175 Difference]: Start difference. First operand has 246 places, 211 transitions, 803 flow. Second operand 3 states and 1831 transitions. [2024-11-28 03:13:46,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 207 transitions, 855 flow [2024-11-28 03:13:46,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 207 transitions, 582 flow, removed 136 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:46,785 INFO L231 Difference]: Finished difference. Result has 246 places, 206 transitions, 524 flow [2024-11-28 03:13:46,785 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=246, PETRI_TRANSITIONS=206} [2024-11-28 03:13:46,786 INFO L279 CegarLoopForPetriNet]: 246 programPoint places, 0 predicate places. [2024-11-28 03:13:46,786 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 206 transitions, 524 flow [2024-11-28 03:13:46,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:46,787 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:46,787 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:46,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-28 03:13:46,787 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 03:13:46,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:46,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1494707086, now seen corresponding path program 1 times [2024-11-28 03:13:46,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:46,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19762611] [2024-11-28 03:13:46,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:46,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:46,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:46,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:46,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19762611] [2024-11-28 03:13:46,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19762611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:46,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:46,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:46,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166588059] [2024-11-28 03:13:46,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:46,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:46,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:46,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:46,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:46,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 738 [2024-11-28 03:13:46,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 206 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 562.0) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:46,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:46,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 738 [2024-11-28 03:13:46,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:47,193 INFO L124 PetriNetUnfolderBase]: 20/861 cut-off events. [2024-11-28 03:13:47,193 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-28 03:13:47,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 861 events. 20/861 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1871 event pairs, 0 based on Foata normal form. 19/841 useless extension candidates. Maximal degree in co-relation 1034. Up to 100 conditions per place. [2024-11-28 03:13:47,203 INFO L140 encePairwiseOnDemand]: 732/738 looper letters, 26 selfloop transitions, 1 changer transitions 24/201 dead transitions. [2024-11-28 03:13:47,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 201 transitions, 572 flow [2024-11-28 03:13:47,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:47,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1717 transitions. [2024-11-28 03:13:47,206 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7755194218608853 [2024-11-28 03:13:47,206 INFO L175 Difference]: Start difference. First operand has 246 places, 206 transitions, 524 flow. Second operand 3 states and 1717 transitions. [2024-11-28 03:13:47,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 201 transitions, 572 flow [2024-11-28 03:13:47,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 201 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:47,211 INFO L231 Difference]: Finished difference. Result has 240 places, 177 transitions, 462 flow [2024-11-28 03:13:47,211 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=240, PETRI_TRANSITIONS=177} [2024-11-28 03:13:47,212 INFO L279 CegarLoopForPetriNet]: 246 programPoint places, -6 predicate places. [2024-11-28 03:13:47,212 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 177 transitions, 462 flow [2024-11-28 03:13:47,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:47,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:47,213 INFO L206 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:47,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-28 03:13:47,213 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 03:13:47,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:47,216 INFO L85 PathProgramCache]: Analyzing trace with hash 2071945998, now seen corresponding path program 1 times [2024-11-28 03:13:47,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:47,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83833674] [2024-11-28 03:13:47,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:47,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:47,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:47,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83833674] [2024-11-28 03:13:47,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83833674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:47,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:47,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:47,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373174963] [2024-11-28 03:13:47,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:47,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:47,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:47,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:47,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:47,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 738 [2024-11-28 03:13:47,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 177 transitions, 462 flow. Second operand has 5 states, 5 states have (on average 620.6) internal successors, (3103), 5 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:47,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:47,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 738 [2024-11-28 03:13:47,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:47,818 INFO L124 PetriNetUnfolderBase]: 0/418 cut-off events. [2024-11-28 03:13:47,818 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-11-28 03:13:47,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 418 events. 0/418 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 243 event pairs, 0 based on Foata normal form. 1/418 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2024-11-28 03:13:47,820 INFO L140 encePairwiseOnDemand]: 733/738 looper letters, 26 selfloop transitions, 2 changer transitions 3/179 dead transitions. [2024-11-28 03:13:47,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 179 transitions, 528 flow [2024-11-28 03:13:47,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:47,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3107 transitions. [2024-11-28 03:13:47,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8420054200542005 [2024-11-28 03:13:47,824 INFO L175 Difference]: Start difference. First operand has 240 places, 177 transitions, 462 flow. Second operand 5 states and 3107 transitions. [2024-11-28 03:13:47,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 179 transitions, 528 flow [2024-11-28 03:13:47,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 179 transitions, 527 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:47,829 INFO L231 Difference]: Finished difference. Result has 220 places, 176 transitions, 467 flow [2024-11-28 03:13:47,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=467, PETRI_PLACES=220, PETRI_TRANSITIONS=176} [2024-11-28 03:13:47,831 INFO L279 CegarLoopForPetriNet]: 246 programPoint places, -26 predicate places. [2024-11-28 03:13:47,831 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 176 transitions, 467 flow [2024-11-28 03:13:47,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 620.6) internal successors, (3103), 5 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:47,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:47,833 INFO L206 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:47,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-28 03:13:47,833 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-28 03:13:47,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:47,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1867787630, now seen corresponding path program 1 times [2024-11-28 03:13:47,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:47,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978519862] [2024-11-28 03:13:47,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:47,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:47,887 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:47,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:47,987 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:47,988 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-28 03:13:47,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-28 03:13:47,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-28 03:13:47,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-28 03:13:47,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-28 03:13:47,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-28 03:13:47,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 26 remaining) [2024-11-28 03:13:47,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-28 03:13:47,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-28 03:13:47,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-28 03:13:47,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-28 03:13:47,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-28 03:13:47,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-28 03:13:47,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-28 03:13:47,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-28 03:13:47,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-28 03:13:47,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-28 03:13:47,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-28 03:13:47,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-28 03:13:47,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-28 03:13:47,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-28 03:13:47,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-28 03:13:47,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-28 03:13:47,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-28 03:13:47,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-28 03:13:47,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-28 03:13:47,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-28 03:13:47,991 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:47,992 WARN L246 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:47,992 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-11-28 03:13:48,143 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:48,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 774 places, 775 transitions, 2386 flow [2024-11-28 03:13:48,501 INFO L124 PetriNetUnfolderBase]: 102/1311 cut-off events. [2024-11-28 03:13:48,501 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2024-11-28 03:13:48,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 1311 events. 102/1311 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3798 event pairs, 0 based on Foata normal form. 0/1145 useless extension candidates. Maximal degree in co-relation 1560. Up to 40 conditions per place. [2024-11-28 03:13:48,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 774 places, 775 transitions, 2386 flow [2024-11-28 03:13:48,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 218 transitions, 857 flow [2024-11-28 03:13:48,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:48,525 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:48,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-28 03:13:48,526 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:48,526 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:48,526 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:48,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:48,527 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:48,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-28 03:13:48,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:48,527 INFO L85 PathProgramCache]: Analyzing trace with hash 77770662, now seen corresponding path program 1 times [2024-11-28 03:13:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:48,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388925162] [2024-11-28 03:13:48,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:48,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:48,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:48,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388925162] [2024-11-28 03:13:48,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388925162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:48,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:48,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:48,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338919137] [2024-11-28 03:13:48,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:48,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:48,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:48,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:48,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:48,723 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 775 [2024-11-28 03:13:48,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 218 transitions, 857 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:48,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:48,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 775 [2024-11-28 03:13:48,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:49,069 INFO L124 PetriNetUnfolderBase]: 41/1009 cut-off events. [2024-11-28 03:13:49,069 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2024-11-28 03:13:49,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1427 conditions, 1009 events. 41/1009 cut-off events. For 1521/1521 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2676 event pairs, 20 based on Foata normal form. 41/965 useless extension candidates. Maximal degree in co-relation 1326. Up to 146 conditions per place. [2024-11-28 03:13:49,082 INFO L140 encePairwiseOnDemand]: 769/775 looper letters, 29 selfloop transitions, 2 changer transitions 1/214 dead transitions. [2024-11-28 03:13:49,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 214 transitions, 911 flow [2024-11-28 03:13:49,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1922 transitions. [2024-11-28 03:13:49,086 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2024-11-28 03:13:49,086 INFO L175 Difference]: Start difference. First operand has 255 places, 218 transitions, 857 flow. Second operand 3 states and 1922 transitions. [2024-11-28 03:13:49,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 214 transitions, 911 flow [2024-11-28 03:13:49,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 214 transitions, 604 flow, removed 153 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:49,097 INFO L231 Difference]: Finished difference. Result has 255 places, 213 transitions, 544 flow [2024-11-28 03:13:49,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=775, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=544, PETRI_PLACES=255, PETRI_TRANSITIONS=213} [2024-11-28 03:13:49,100 INFO L279 CegarLoopForPetriNet]: 255 programPoint places, 0 predicate places. [2024-11-28 03:13:49,100 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 213 transitions, 544 flow [2024-11-28 03:13:49,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:49,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:49,101 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:49,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-28 03:13:49,101 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-28 03:13:49,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1635328946, now seen corresponding path program 1 times [2024-11-28 03:13:49,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:49,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880591051] [2024-11-28 03:13:49,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:49,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:49,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:49,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880591051] [2024-11-28 03:13:49,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880591051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:49,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:49,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:49,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417136406] [2024-11-28 03:13:49,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:49,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:49,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:49,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:49,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:49,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 775 [2024-11-28 03:13:49,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 213 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:49,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:49,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 775 [2024-11-28 03:13:49,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:49,606 INFO L124 PetriNetUnfolderBase]: 21/905 cut-off events. [2024-11-28 03:13:49,607 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-28 03:13:49,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 905 events. 21/905 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1973 event pairs, 0 based on Foata normal form. 20/884 useless extension candidates. Maximal degree in co-relation 1088. Up to 105 conditions per place. [2024-11-28 03:13:49,615 INFO L140 encePairwiseOnDemand]: 769/775 looper letters, 27 selfloop transitions, 1 changer transitions 24/208 dead transitions. [2024-11-28 03:13:49,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 208 transitions, 594 flow [2024-11-28 03:13:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1802 transitions. [2024-11-28 03:13:49,618 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7750537634408602 [2024-11-28 03:13:49,618 INFO L175 Difference]: Start difference. First operand has 255 places, 213 transitions, 544 flow. Second operand 3 states and 1802 transitions. [2024-11-28 03:13:49,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 208 transitions, 594 flow [2024-11-28 03:13:49,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 208 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:49,626 INFO L231 Difference]: Finished difference. Result has 249 places, 184 transitions, 482 flow [2024-11-28 03:13:49,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=775, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=249, PETRI_TRANSITIONS=184} [2024-11-28 03:13:49,629 INFO L279 CegarLoopForPetriNet]: 255 programPoint places, -6 predicate places. [2024-11-28 03:13:49,629 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 184 transitions, 482 flow [2024-11-28 03:13:49,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:49,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:49,631 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:49,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-28 03:13:49,631 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-28 03:13:49,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash 106505867, now seen corresponding path program 1 times [2024-11-28 03:13:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:49,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833387958] [2024-11-28 03:13:49,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:49,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:49,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:49,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833387958] [2024-11-28 03:13:49,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833387958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:49,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:49,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:49,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606657580] [2024-11-28 03:13:49,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:49,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:49,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:49,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:49,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:49,972 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 646 out of 775 [2024-11-28 03:13:49,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 184 transitions, 482 flow. Second operand has 5 states, 5 states have (on average 651.8) internal successors, (3259), 5 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:49,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:49,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 646 of 775 [2024-11-28 03:13:49,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:50,165 INFO L124 PetriNetUnfolderBase]: 0/438 cut-off events. [2024-11-28 03:13:50,165 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-28 03:13:50,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 438 events. 0/438 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 255 event pairs, 0 based on Foata normal form. 1/438 useless extension candidates. Maximal degree in co-relation 0. Up to 65 conditions per place. [2024-11-28 03:13:50,167 INFO L140 encePairwiseOnDemand]: 770/775 looper letters, 27 selfloop transitions, 2 changer transitions 3/186 dead transitions. [2024-11-28 03:13:50,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 186 transitions, 550 flow [2024-11-28 03:13:50,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:50,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:50,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3263 transitions. [2024-11-28 03:13:50,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8420645161290322 [2024-11-28 03:13:50,171 INFO L175 Difference]: Start difference. First operand has 249 places, 184 transitions, 482 flow. Second operand 5 states and 3263 transitions. [2024-11-28 03:13:50,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 186 transitions, 550 flow [2024-11-28 03:13:50,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 186 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:50,176 INFO L231 Difference]: Finished difference. Result has 229 places, 183 transitions, 487 flow [2024-11-28 03:13:50,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=775, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=487, PETRI_PLACES=229, PETRI_TRANSITIONS=183} [2024-11-28 03:13:50,177 INFO L279 CegarLoopForPetriNet]: 255 programPoint places, -26 predicate places. [2024-11-28 03:13:50,177 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 183 transitions, 487 flow [2024-11-28 03:13:50,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 651.8) internal successors, (3259), 5 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:50,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:50,179 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:50,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-28 03:13:50,179 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-28 03:13:50,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:50,182 INFO L85 PathProgramCache]: Analyzing trace with hash -491638940, now seen corresponding path program 1 times [2024-11-28 03:13:50,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:50,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604078932] [2024-11-28 03:13:50,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:50,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:50,238 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:50,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:50,341 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:50,341 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-11-28 03:13:50,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2024-11-28 03:13:50,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2024-11-28 03:13:50,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2024-11-28 03:13:50,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2024-11-28 03:13:50,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2024-11-28 03:13:50,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 27 remaining) [2024-11-28 03:13:50,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-28 03:13:50,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2024-11-28 03:13:50,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-28 03:13:50,344 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-28 03:13:50,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-28 03:13:50,345 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:50,345 WARN L246 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:50,345 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-11-28 03:13:50,499 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:50,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 811 places, 812 transitions, 2544 flow [2024-11-28 03:13:50,895 INFO L124 PetriNetUnfolderBase]: 107/1375 cut-off events. [2024-11-28 03:13:50,895 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2024-11-28 03:13:50,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1688 conditions, 1375 events. 107/1375 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3997 event pairs, 0 based on Foata normal form. 0/1201 useless extension candidates. Maximal degree in co-relation 1647. Up to 42 conditions per place. [2024-11-28 03:13:50,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 811 places, 812 transitions, 2544 flow [2024-11-28 03:13:50,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 225 transitions, 913 flow [2024-11-28 03:13:50,919 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:50,920 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:50,920 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-28 03:13:50,921 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:50,922 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:50,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:50,922 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:50,922 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:50,922 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:13:50,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:50,923 INFO L85 PathProgramCache]: Analyzing trace with hash 629627814, now seen corresponding path program 1 times [2024-11-28 03:13:50,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:50,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939563518] [2024-11-28 03:13:50,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:50,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:50,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:50,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939563518] [2024-11-28 03:13:50,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939563518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:50,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:50,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:50,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982493730] [2024-11-28 03:13:50,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:50,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:50,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:50,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:50,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:51,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 812 [2024-11-28 03:13:51,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 225 transitions, 913 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:51,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:51,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 812 [2024-11-28 03:13:51,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:51,590 INFO L124 PetriNetUnfolderBase]: 43/1058 cut-off events. [2024-11-28 03:13:51,590 INFO L125 PetriNetUnfolderBase]: For 1751/1751 co-relation queries the response was YES. [2024-11-28 03:13:51,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 1058 events. 43/1058 cut-off events. For 1751/1751 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2720 event pairs, 21 based on Foata normal form. 22/991 useless extension candidates. Maximal degree in co-relation 1404. Up to 153 conditions per place. [2024-11-28 03:13:51,602 INFO L140 encePairwiseOnDemand]: 806/812 looper letters, 30 selfloop transitions, 2 changer transitions 1/221 dead transitions. [2024-11-28 03:13:51,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 221 transitions, 969 flow [2024-11-28 03:13:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:51,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2024-11-28 03:13:51,605 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8263546798029556 [2024-11-28 03:13:51,605 INFO L175 Difference]: Start difference. First operand has 264 places, 225 transitions, 913 flow. Second operand 3 states and 2013 transitions. [2024-11-28 03:13:51,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 221 transitions, 969 flow [2024-11-28 03:13:51,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 221 transitions, 626 flow, removed 171 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:51,617 INFO L231 Difference]: Finished difference. Result has 264 places, 220 transitions, 564 flow [2024-11-28 03:13:51,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=812, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=264, PETRI_TRANSITIONS=220} [2024-11-28 03:13:51,619 INFO L279 CegarLoopForPetriNet]: 264 programPoint places, 0 predicate places. [2024-11-28 03:13:51,620 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 220 transitions, 564 flow [2024-11-28 03:13:51,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:51,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:51,621 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:51,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-28 03:13:51,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:13:51,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash 649261902, now seen corresponding path program 1 times [2024-11-28 03:13:51,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:51,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444657513] [2024-11-28 03:13:51,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:51,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:51,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:51,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444657513] [2024-11-28 03:13:51,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444657513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:51,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:51,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:51,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146850170] [2024-11-28 03:13:51,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:51,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:51,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:51,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:51,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:51,760 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 812 [2024-11-28 03:13:51,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 220 transitions, 564 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:51,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:51,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 812 [2024-11-28 03:13:51,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:52,089 INFO L124 PetriNetUnfolderBase]: 22/949 cut-off events. [2024-11-28 03:13:52,090 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-28 03:13:52,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 949 events. 22/949 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2033 event pairs, 0 based on Foata normal form. 21/927 useless extension candidates. Maximal degree in co-relation 1142. Up to 110 conditions per place. [2024-11-28 03:13:52,101 INFO L140 encePairwiseOnDemand]: 806/812 looper letters, 28 selfloop transitions, 1 changer transitions 24/215 dead transitions. [2024-11-28 03:13:52,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 215 transitions, 616 flow [2024-11-28 03:13:52,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2024-11-28 03:13:52,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7746305418719212 [2024-11-28 03:13:52,104 INFO L175 Difference]: Start difference. First operand has 264 places, 220 transitions, 564 flow. Second operand 3 states and 1887 transitions. [2024-11-28 03:13:52,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 215 transitions, 616 flow [2024-11-28 03:13:52,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 215 transitions, 612 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:52,109 INFO L231 Difference]: Finished difference. Result has 258 places, 191 transitions, 502 flow [2024-11-28 03:13:52,110 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=812, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=258, PETRI_TRANSITIONS=191} [2024-11-28 03:13:52,110 INFO L279 CegarLoopForPetriNet]: 264 programPoint places, -6 predicate places. [2024-11-28 03:13:52,110 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 191 transitions, 502 flow [2024-11-28 03:13:52,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:52,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:52,112 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:52,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-28 03:13:52,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:13:52,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:52,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1985737206, now seen corresponding path program 1 times [2024-11-28 03:13:52,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:52,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056155591] [2024-11-28 03:13:52,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:52,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:52,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:52,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:52,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056155591] [2024-11-28 03:13:52,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056155591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:52,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:52,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:52,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981778970] [2024-11-28 03:13:52,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:52,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:52,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:52,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:52,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:52,464 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 812 [2024-11-28 03:13:52,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 191 transitions, 502 flow. Second operand has 5 states, 5 states have (on average 683.0) internal successors, (3415), 5 states have internal predecessors, (3415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:52,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:52,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 812 [2024-11-28 03:13:52,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:52,670 INFO L124 PetriNetUnfolderBase]: 0/458 cut-off events. [2024-11-28 03:13:52,670 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-28 03:13:52,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 458 events. 0/458 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 267 event pairs, 0 based on Foata normal form. 1/458 useless extension candidates. Maximal degree in co-relation 0. Up to 68 conditions per place. [2024-11-28 03:13:52,671 INFO L140 encePairwiseOnDemand]: 807/812 looper letters, 28 selfloop transitions, 2 changer transitions 3/193 dead transitions. [2024-11-28 03:13:52,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 193 transitions, 572 flow [2024-11-28 03:13:52,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3419 transitions. [2024-11-28 03:13:52,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421182266009852 [2024-11-28 03:13:52,675 INFO L175 Difference]: Start difference. First operand has 258 places, 191 transitions, 502 flow. Second operand 5 states and 3419 transitions. [2024-11-28 03:13:52,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 193 transitions, 572 flow [2024-11-28 03:13:52,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 193 transitions, 571 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:52,681 INFO L231 Difference]: Finished difference. Result has 238 places, 190 transitions, 507 flow [2024-11-28 03:13:52,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=812, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=507, PETRI_PLACES=238, PETRI_TRANSITIONS=190} [2024-11-28 03:13:52,682 INFO L279 CegarLoopForPetriNet]: 264 programPoint places, -26 predicate places. [2024-11-28 03:13:52,682 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 190 transitions, 507 flow [2024-11-28 03:13:52,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 683.0) internal successors, (3415), 5 states have internal predecessors, (3415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:52,684 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:52,684 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:52,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-28 03:13:52,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 03:13:52,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 804672227, now seen corresponding path program 1 times [2024-11-28 03:13:52,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:52,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867164995] [2024-11-28 03:13:52,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:52,742 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:52,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:52,855 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:52,855 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2024-11-28 03:13:52,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2024-11-28 03:13:52,857 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2024-11-28 03:13:52,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2024-11-28 03:13:52,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2024-11-28 03:13:52,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-28 03:13:52,858 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:52,859 WARN L246 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:52,859 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-11-28 03:13:53,012 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:53,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 849 transitions, 2706 flow [2024-11-28 03:13:53,457 INFO L124 PetriNetUnfolderBase]: 112/1439 cut-off events. [2024-11-28 03:13:53,457 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2024-11-28 03:13:53,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 1439 events. 112/1439 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4125 event pairs, 0 based on Foata normal form. 0/1257 useless extension candidates. Maximal degree in co-relation 1735. Up to 44 conditions per place. [2024-11-28 03:13:53,467 INFO L82 GeneralOperation]: Start removeDead. Operand has 848 places, 849 transitions, 2706 flow [2024-11-28 03:13:53,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 273 places, 232 transitions, 971 flow [2024-11-28 03:13:53,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:53,474 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:53,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-28 03:13:53,477 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:53,477 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:53,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:53,478 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:53,478 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:53,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-28 03:13:53,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:53,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1132580006, now seen corresponding path program 1 times [2024-11-28 03:13:53,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:53,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157339623] [2024-11-28 03:13:53,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:53,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:53,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:53,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157339623] [2024-11-28 03:13:53,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157339623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:53,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:53,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:53,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138867988] [2024-11-28 03:13:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:53,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:53,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:53,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:53,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:53,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 689 out of 849 [2024-11-28 03:13:53,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 232 transitions, 971 flow. Second operand has 3 states, 3 states have (on average 690.3333333333334) internal successors, (2071), 3 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:53,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:53,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 689 of 849 [2024-11-28 03:13:53,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:54,186 INFO L124 PetriNetUnfolderBase]: 45/1107 cut-off events. [2024-11-28 03:13:54,187 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2024-11-28 03:13:54,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1588 conditions, 1107 events. 45/1107 cut-off events. For 2003/2003 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2952 event pairs, 22 based on Foata normal form. 45/1059 useless extension candidates. Maximal degree in co-relation 1483. Up to 160 conditions per place. [2024-11-28 03:13:54,198 INFO L140 encePairwiseOnDemand]: 843/849 looper letters, 31 selfloop transitions, 2 changer transitions 1/228 dead transitions. [2024-11-28 03:13:54,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 228 transitions, 1029 flow [2024-11-28 03:13:54,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:54,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2104 transitions. [2024-11-28 03:13:54,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8260698861405575 [2024-11-28 03:13:54,204 INFO L175 Difference]: Start difference. First operand has 273 places, 232 transitions, 971 flow. Second operand 3 states and 2104 transitions. [2024-11-28 03:13:54,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 228 transitions, 1029 flow [2024-11-28 03:13:54,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 228 transitions, 648 flow, removed 190 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:54,217 INFO L231 Difference]: Finished difference. Result has 273 places, 227 transitions, 584 flow [2024-11-28 03:13:54,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=849, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=584, PETRI_PLACES=273, PETRI_TRANSITIONS=227} [2024-11-28 03:13:54,218 INFO L279 CegarLoopForPetriNet]: 273 programPoint places, 0 predicate places. [2024-11-28 03:13:54,218 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 227 transitions, 584 flow [2024-11-28 03:13:54,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 690.3333333333334) internal successors, (2071), 3 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:54,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:54,219 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:54,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-28 03:13:54,220 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-28 03:13:54,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:54,220 INFO L85 PathProgramCache]: Analyzing trace with hash -241454962, now seen corresponding path program 1 times [2024-11-28 03:13:54,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:54,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773494153] [2024-11-28 03:13:54,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:54,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:54,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:54,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:54,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773494153] [2024-11-28 03:13:54,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773494153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:54,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:54,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:54,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093620487] [2024-11-28 03:13:54,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:54,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:54,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:54,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:54,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:54,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 849 [2024-11-28 03:13:54,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 227 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 646.0) internal successors, (1938), 3 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:54,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:54,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 849 [2024-11-28 03:13:54,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:54,855 INFO L124 PetriNetUnfolderBase]: 23/993 cut-off events. [2024-11-28 03:13:54,855 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-28 03:13:54,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1241 conditions, 993 events. 23/993 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2177 event pairs, 0 based on Foata normal form. 22/970 useless extension candidates. Maximal degree in co-relation 1196. Up to 115 conditions per place. [2024-11-28 03:13:54,864 INFO L140 encePairwiseOnDemand]: 843/849 looper letters, 29 selfloop transitions, 1 changer transitions 24/222 dead transitions. [2024-11-28 03:13:54,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 222 transitions, 638 flow [2024-11-28 03:13:54,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:54,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:54,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1972 transitions. [2024-11-28 03:13:54,868 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7742442088731841 [2024-11-28 03:13:54,868 INFO L175 Difference]: Start difference. First operand has 273 places, 227 transitions, 584 flow. Second operand 3 states and 1972 transitions. [2024-11-28 03:13:54,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 222 transitions, 638 flow [2024-11-28 03:13:54,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 222 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:54,873 INFO L231 Difference]: Finished difference. Result has 267 places, 198 transitions, 522 flow [2024-11-28 03:13:54,873 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=849, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=267, PETRI_TRANSITIONS=198} [2024-11-28 03:13:54,874 INFO L279 CegarLoopForPetriNet]: 273 programPoint places, -6 predicate places. [2024-11-28 03:13:54,874 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 198 transitions, 522 flow [2024-11-28 03:13:54,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 646.0) internal successors, (1938), 3 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:54,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:54,875 INFO L206 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:54,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-28 03:13:54,875 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-28 03:13:54,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:54,879 INFO L85 PathProgramCache]: Analyzing trace with hash -194235025, now seen corresponding path program 1 times [2024-11-28 03:13:54,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:54,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994310443] [2024-11-28 03:13:54,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:54,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:55,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:55,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:55,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994310443] [2024-11-28 03:13:55,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994310443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:55,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:55,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:55,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586894282] [2024-11-28 03:13:55,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:55,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:55,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:55,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:55,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:55,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 849 [2024-11-28 03:13:55,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 198 transitions, 522 flow. Second operand has 5 states, 5 states have (on average 714.2) internal successors, (3571), 5 states have internal predecessors, (3571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:55,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:55,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 849 [2024-11-28 03:13:55,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:55,578 INFO L124 PetriNetUnfolderBase]: 0/478 cut-off events. [2024-11-28 03:13:55,579 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-28 03:13:55,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 478 events. 0/478 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 279 event pairs, 0 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 0. Up to 71 conditions per place. [2024-11-28 03:13:55,580 INFO L140 encePairwiseOnDemand]: 844/849 looper letters, 29 selfloop transitions, 2 changer transitions 3/200 dead transitions. [2024-11-28 03:13:55,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 200 transitions, 594 flow [2024-11-28 03:13:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:55,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3575 transitions. [2024-11-28 03:13:55,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421672555948174 [2024-11-28 03:13:55,588 INFO L175 Difference]: Start difference. First operand has 267 places, 198 transitions, 522 flow. Second operand 5 states and 3575 transitions. [2024-11-28 03:13:55,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 200 transitions, 594 flow [2024-11-28 03:13:55,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 200 transitions, 593 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:55,594 INFO L231 Difference]: Finished difference. Result has 247 places, 197 transitions, 527 flow [2024-11-28 03:13:55,595 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=849, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=527, PETRI_PLACES=247, PETRI_TRANSITIONS=197} [2024-11-28 03:13:55,595 INFO L279 CegarLoopForPetriNet]: 273 programPoint places, -26 predicate places. [2024-11-28 03:13:55,595 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 197 transitions, 527 flow [2024-11-28 03:13:55,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 714.2) internal successors, (3571), 5 states have internal predecessors, (3571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:55,597 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:55,597 INFO L206 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:55,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-28 03:13:55,597 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-28 03:13:55,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:55,601 INFO L85 PathProgramCache]: Analyzing trace with hash 457709131, now seen corresponding path program 1 times [2024-11-28 03:13:55,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:55,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288959052] [2024-11-28 03:13:55,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:55,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:55,656 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:55,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:55,757 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:55,757 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-28 03:13:55,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-28 03:13:55,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-28 03:13:55,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-28 03:13:55,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-28 03:13:55,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-28 03:13:55,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-28 03:13:55,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-28 03:13:55,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-28 03:13:55,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-28 03:13:55,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-28 03:13:55,761 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:55,761 WARN L246 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:55,762 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-11-28 03:13:55,910 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:55,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 885 places, 886 transitions, 2872 flow [2024-11-28 03:13:56,349 INFO L124 PetriNetUnfolderBase]: 117/1503 cut-off events. [2024-11-28 03:13:56,349 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2024-11-28 03:13:56,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 1503 events. 117/1503 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4249 event pairs, 0 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 1824. Up to 46 conditions per place. [2024-11-28 03:13:56,363 INFO L82 GeneralOperation]: Start removeDead. Operand has 885 places, 886 transitions, 2872 flow [2024-11-28 03:13:56,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 282 places, 239 transitions, 1031 flow [2024-11-28 03:13:56,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:56,370 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:56,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-28 03:13:56,372 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:56,372 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:56,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:56,372 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:56,373 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:56,373 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-28 03:13:56,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:56,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1586627238, now seen corresponding path program 1 times [2024-11-28 03:13:56,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:56,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013988033] [2024-11-28 03:13:56,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:56,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:56,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:56,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013988033] [2024-11-28 03:13:56,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013988033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:56,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:56,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:56,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418799219] [2024-11-28 03:13:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:56,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:56,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:56,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:56,578 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 719 out of 886 [2024-11-28 03:13:56,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 239 transitions, 1031 flow. Second operand has 3 states, 3 states have (on average 720.3333333333334) internal successors, (2161), 3 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:56,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:56,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 719 of 886 [2024-11-28 03:13:56,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:57,061 INFO L124 PetriNetUnfolderBase]: 47/1156 cut-off events. [2024-11-28 03:13:57,061 INFO L125 PetriNetUnfolderBase]: For 2278/2278 co-relation queries the response was YES. [2024-11-28 03:13:57,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1670 conditions, 1156 events. 47/1156 cut-off events. For 2278/2278 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3109 event pairs, 23 based on Foata normal form. 47/1106 useless extension candidates. Maximal degree in co-relation 1563. Up to 167 conditions per place. [2024-11-28 03:13:57,079 INFO L140 encePairwiseOnDemand]: 880/886 looper letters, 32 selfloop transitions, 2 changer transitions 1/235 dead transitions. [2024-11-28 03:13:57,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 235 transitions, 1091 flow [2024-11-28 03:13:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:57,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2195 transitions. [2024-11-28 03:13:57,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.825808878856283 [2024-11-28 03:13:57,082 INFO L175 Difference]: Start difference. First operand has 282 places, 239 transitions, 1031 flow. Second operand 3 states and 2195 transitions. [2024-11-28 03:13:57,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 235 transitions, 1091 flow [2024-11-28 03:13:57,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 235 transitions, 670 flow, removed 210 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:57,092 INFO L231 Difference]: Finished difference. Result has 282 places, 234 transitions, 604 flow [2024-11-28 03:13:57,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=886, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=282, PETRI_TRANSITIONS=234} [2024-11-28 03:13:57,097 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, 0 predicate places. [2024-11-28 03:13:57,098 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 234 transitions, 604 flow [2024-11-28 03:13:57,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 720.3333333333334) internal successors, (2161), 3 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:57,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:57,100 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:57,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-28 03:13:57,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-28 03:13:57,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:57,101 INFO L85 PathProgramCache]: Analyzing trace with hash -12512242, now seen corresponding path program 1 times [2024-11-28 03:13:57,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:57,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702013321] [2024-11-28 03:13:57,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:57,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:57,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:57,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702013321] [2024-11-28 03:13:57,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702013321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:57,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:57,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140296224] [2024-11-28 03:13:57,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:57,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:57,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:57,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:57,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:57,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 673 out of 886 [2024-11-28 03:13:57,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 234 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 674.0) internal successors, (2022), 3 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:57,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:57,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 673 of 886 [2024-11-28 03:13:57,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:57,624 INFO L124 PetriNetUnfolderBase]: 24/1037 cut-off events. [2024-11-28 03:13:57,624 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-28 03:13:57,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 1037 events. 24/1037 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2279 event pairs, 0 based on Foata normal form. 23/1013 useless extension candidates. Maximal degree in co-relation 1250. Up to 120 conditions per place. [2024-11-28 03:13:57,638 INFO L140 encePairwiseOnDemand]: 880/886 looper letters, 30 selfloop transitions, 1 changer transitions 24/229 dead transitions. [2024-11-28 03:13:57,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 229 transitions, 660 flow [2024-11-28 03:13:57,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:57,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2057 transitions. [2024-11-28 03:13:57,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7738901429646351 [2024-11-28 03:13:57,641 INFO L175 Difference]: Start difference. First operand has 282 places, 234 transitions, 604 flow. Second operand 3 states and 2057 transitions. [2024-11-28 03:13:57,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 229 transitions, 660 flow [2024-11-28 03:13:57,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 229 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:57,647 INFO L231 Difference]: Finished difference. Result has 276 places, 205 transitions, 542 flow [2024-11-28 03:13:57,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=886, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=276, PETRI_TRANSITIONS=205} [2024-11-28 03:13:57,648 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, -6 predicate places. [2024-11-28 03:13:57,648 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 205 transitions, 542 flow [2024-11-28 03:13:57,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 674.0) internal successors, (2022), 3 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:57,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:57,649 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:57,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-28 03:13:57,650 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-28 03:13:57,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:57,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1482907926, now seen corresponding path program 1 times [2024-11-28 03:13:57,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:57,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184096966] [2024-11-28 03:13:57,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:57,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:57,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184096966] [2024-11-28 03:13:57,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184096966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:57,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:57,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:13:57,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68549589] [2024-11-28 03:13:57,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:57,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:13:57,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:57,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:13:57,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:13:58,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 739 out of 886 [2024-11-28 03:13:58,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 205 transitions, 542 flow. Second operand has 5 states, 5 states have (on average 745.4) internal successors, (3727), 5 states have internal predecessors, (3727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:58,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:58,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 739 of 886 [2024-11-28 03:13:58,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:58,210 INFO L124 PetriNetUnfolderBase]: 0/498 cut-off events. [2024-11-28 03:13:58,210 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-11-28 03:13:58,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 498 events. 0/498 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 291 event pairs, 0 based on Foata normal form. 1/498 useless extension candidates. Maximal degree in co-relation 0. Up to 74 conditions per place. [2024-11-28 03:13:58,211 INFO L140 encePairwiseOnDemand]: 881/886 looper letters, 30 selfloop transitions, 2 changer transitions 3/207 dead transitions. [2024-11-28 03:13:58,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 207 transitions, 616 flow [2024-11-28 03:13:58,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:13:58,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:13:58,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3731 transitions. [2024-11-28 03:13:58,215 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8422121896162528 [2024-11-28 03:13:58,215 INFO L175 Difference]: Start difference. First operand has 276 places, 205 transitions, 542 flow. Second operand 5 states and 3731 transitions. [2024-11-28 03:13:58,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 207 transitions, 616 flow [2024-11-28 03:13:58,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 207 transitions, 615 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:58,221 INFO L231 Difference]: Finished difference. Result has 256 places, 204 transitions, 547 flow [2024-11-28 03:13:58,221 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=886, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=547, PETRI_PLACES=256, PETRI_TRANSITIONS=204} [2024-11-28 03:13:58,222 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, -26 predicate places. [2024-11-28 03:13:58,222 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 204 transitions, 547 flow [2024-11-28 03:13:58,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 745.4) internal successors, (3727), 5 states have internal predecessors, (3727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:58,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:58,223 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:58,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-28 03:13:58,223 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-28 03:13:58,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:58,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1357899780, now seen corresponding path program 1 times [2024-11-28 03:13:58,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:58,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807134030] [2024-11-28 03:13:58,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:58,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:58,286 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:13:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:13:58,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:13:58,416 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:13:58,416 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2024-11-28 03:13:58,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2024-11-28 03:13:58,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2024-11-28 03:13:58,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2024-11-28 03:13:58,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2024-11-28 03:13:58,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2024-11-28 03:13:58,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 30 remaining) [2024-11-28 03:13:58,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2024-11-28 03:13:58,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2024-11-28 03:13:58,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2024-11-28 03:13:58,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2024-11-28 03:13:58,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2024-11-28 03:13:58,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2024-11-28 03:13:58,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2024-11-28 03:13:58,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2024-11-28 03:13:58,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2024-11-28 03:13:58,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2024-11-28 03:13:58,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2024-11-28 03:13:58,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2024-11-28 03:13:58,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2024-11-28 03:13:58,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2024-11-28 03:13:58,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2024-11-28 03:13:58,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-28 03:13:58,420 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:13:58,420 WARN L246 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:13:58,420 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-11-28 03:13:58,571 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:13:58,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 922 places, 923 transitions, 3042 flow [2024-11-28 03:13:59,004 INFO L124 PetriNetUnfolderBase]: 122/1567 cut-off events. [2024-11-28 03:13:59,004 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2024-11-28 03:13:59,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1961 conditions, 1567 events. 122/1567 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4360 event pairs, 0 based on Foata normal form. 0/1369 useless extension candidates. Maximal degree in co-relation 1914. Up to 48 conditions per place. [2024-11-28 03:13:59,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 922 places, 923 transitions, 3042 flow [2024-11-28 03:13:59,024 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 291 places, 246 transitions, 1093 flow [2024-11-28 03:13:59,025 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:59,025 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:59,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-28 03:13:59,027 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:59,028 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:13:59,028 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:13:59,028 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:59,028 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:59,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-28 03:13:59,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:59,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1991769510, now seen corresponding path program 1 times [2024-11-28 03:13:59,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:59,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530694212] [2024-11-28 03:13:59,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:59,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:59,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:59,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530694212] [2024-11-28 03:13:59,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530694212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:59,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:59,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:59,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747707935] [2024-11-28 03:13:59,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:59,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:59,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:59,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:59,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:59,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 749 out of 923 [2024-11-28 03:13:59,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 246 transitions, 1093 flow. Second operand has 3 states, 3 states have (on average 750.3333333333334) internal successors, (2251), 3 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:59,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:59,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 749 of 923 [2024-11-28 03:13:59,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:59,685 INFO L124 PetriNetUnfolderBase]: 49/1205 cut-off events. [2024-11-28 03:13:59,685 INFO L125 PetriNetUnfolderBase]: For 2577/2577 co-relation queries the response was YES. [2024-11-28 03:13:59,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 1205 events. 49/1205 cut-off events. For 2577/2577 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3340 event pairs, 24 based on Foata normal form. 49/1153 useless extension candidates. Maximal degree in co-relation 1644. Up to 174 conditions per place. [2024-11-28 03:13:59,698 INFO L140 encePairwiseOnDemand]: 917/923 looper letters, 33 selfloop transitions, 2 changer transitions 1/242 dead transitions. [2024-11-28 03:13:59,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 242 transitions, 1155 flow [2024-11-28 03:13:59,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:59,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2286 transitions. [2024-11-28 03:13:59,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8255687973997833 [2024-11-28 03:13:59,701 INFO L175 Difference]: Start difference. First operand has 291 places, 246 transitions, 1093 flow. Second operand 3 states and 2286 transitions. [2024-11-28 03:13:59,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 242 transitions, 1155 flow [2024-11-28 03:13:59,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 242 transitions, 692 flow, removed 231 selfloop flow, removed 1 redundant places. [2024-11-28 03:13:59,707 INFO L231 Difference]: Finished difference. Result has 291 places, 241 transitions, 624 flow [2024-11-28 03:13:59,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=291, PETRI_TRANSITIONS=241} [2024-11-28 03:13:59,708 INFO L279 CegarLoopForPetriNet]: 291 programPoint places, 0 predicate places. [2024-11-28 03:13:59,708 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 241 transitions, 624 flow [2024-11-28 03:13:59,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 750.3333333333334) internal successors, (2251), 3 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:59,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:59,708 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:59,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-28 03:13:59,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-28 03:13:59,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:59,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1336090062, now seen corresponding path program 1 times [2024-11-28 03:13:59,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:59,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923123934] [2024-11-28 03:13:59,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:59,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:59,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:59,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:59,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923123934] [2024-11-28 03:13:59,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923123934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:59,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:59,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:13:59,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714899573] [2024-11-28 03:13:59,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:59,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:59,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:59,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:59,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:59,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 923 [2024-11-28 03:13:59,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 241 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 702.0) internal successors, (2106), 3 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:13:59,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:59,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 923 [2024-11-28 03:13:59,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:00,233 INFO L124 PetriNetUnfolderBase]: 25/1081 cut-off events. [2024-11-28 03:14:00,233 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-28 03:14:00,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1081 events. 25/1081 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2498 event pairs, 0 based on Foata normal form. 24/1056 useless extension candidates. Maximal degree in co-relation 1304. Up to 125 conditions per place. [2024-11-28 03:14:00,242 INFO L140 encePairwiseOnDemand]: 917/923 looper letters, 31 selfloop transitions, 1 changer transitions 24/236 dead transitions. [2024-11-28 03:14:00,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 236 transitions, 682 flow [2024-11-28 03:14:00,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2142 transitions. [2024-11-28 03:14:00,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7735644637053087 [2024-11-28 03:14:00,245 INFO L175 Difference]: Start difference. First operand has 291 places, 241 transitions, 624 flow. Second operand 3 states and 2142 transitions. [2024-11-28 03:14:00,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 236 transitions, 682 flow [2024-11-28 03:14:00,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 236 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:00,251 INFO L231 Difference]: Finished difference. Result has 285 places, 212 transitions, 562 flow [2024-11-28 03:14:00,251 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=285, PETRI_TRANSITIONS=212} [2024-11-28 03:14:00,252 INFO L279 CegarLoopForPetriNet]: 291 programPoint places, -6 predicate places. [2024-11-28 03:14:00,252 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 212 transitions, 562 flow [2024-11-28 03:14:00,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.0) internal successors, (2106), 3 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:00,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:00,253 INFO L206 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:00,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-28 03:14:00,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-28 03:14:00,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:00,256 INFO L85 PathProgramCache]: Analyzing trace with hash 323478795, now seen corresponding path program 1 times [2024-11-28 03:14:00,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:00,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98909521] [2024-11-28 03:14:00,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:00,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:00,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:00,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98909521] [2024-11-28 03:14:00,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98909521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:00,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:00,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:00,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861141694] [2024-11-28 03:14:00,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:00,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:00,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:00,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:00,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:00,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 770 out of 923 [2024-11-28 03:14:00,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 212 transitions, 562 flow. Second operand has 5 states, 5 states have (on average 776.6) internal successors, (3883), 5 states have internal predecessors, (3883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:00,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:00,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 770 of 923 [2024-11-28 03:14:00,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:00,836 INFO L124 PetriNetUnfolderBase]: 0/518 cut-off events. [2024-11-28 03:14:00,836 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-28 03:14:00,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 518 events. 0/518 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 304 event pairs, 0 based on Foata normal form. 1/518 useless extension candidates. Maximal degree in co-relation 0. Up to 77 conditions per place. [2024-11-28 03:14:00,837 INFO L140 encePairwiseOnDemand]: 918/923 looper letters, 31 selfloop transitions, 2 changer transitions 3/214 dead transitions. [2024-11-28 03:14:00,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 214 transitions, 638 flow [2024-11-28 03:14:00,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:00,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3887 transitions. [2024-11-28 03:14:00,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8422535211267606 [2024-11-28 03:14:00,842 INFO L175 Difference]: Start difference. First operand has 285 places, 212 transitions, 562 flow. Second operand 5 states and 3887 transitions. [2024-11-28 03:14:00,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 214 transitions, 638 flow [2024-11-28 03:14:00,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 214 transitions, 637 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:00,847 INFO L231 Difference]: Finished difference. Result has 265 places, 211 transitions, 567 flow [2024-11-28 03:14:00,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=567, PETRI_PLACES=265, PETRI_TRANSITIONS=211} [2024-11-28 03:14:00,848 INFO L279 CegarLoopForPetriNet]: 291 programPoint places, -26 predicate places. [2024-11-28 03:14:00,848 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 211 transitions, 567 flow [2024-11-28 03:14:00,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 776.6) internal successors, (3883), 5 states have internal predecessors, (3883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:00,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:00,850 INFO L206 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:00,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-11-28 03:14:00,850 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-28 03:14:00,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1347938730, now seen corresponding path program 1 times [2024-11-28 03:14:00,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:00,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609123117] [2024-11-28 03:14:00,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:00,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:00,916 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:01,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:01,054 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:01,054 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-28 03:14:01,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-28 03:14:01,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-28 03:14:01,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-28 03:14:01,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-28 03:14:01,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-28 03:14:01,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 31 remaining) [2024-11-28 03:14:01,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-28 03:14:01,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-28 03:14:01,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-28 03:14:01,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-28 03:14:01,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-28 03:14:01,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-28 03:14:01,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-28 03:14:01,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-28 03:14:01,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-11-28 03:14:01,058 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:01,058 WARN L246 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:01,058 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-11-28 03:14:01,223 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:01,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 959 places, 960 transitions, 3216 flow [2024-11-28 03:14:01,750 INFO L124 PetriNetUnfolderBase]: 127/1631 cut-off events. [2024-11-28 03:14:01,750 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2024-11-28 03:14:01,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2054 conditions, 1631 events. 127/1631 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4613 event pairs, 0 based on Foata normal form. 0/1425 useless extension candidates. Maximal degree in co-relation 2005. Up to 50 conditions per place. [2024-11-28 03:14:01,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 959 places, 960 transitions, 3216 flow [2024-11-28 03:14:01,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 253 transitions, 1157 flow [2024-11-28 03:14:01,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:01,771 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:01,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-28 03:14:01,773 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:01,773 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:01,773 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:01,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:01,773 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:01,774 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-28 03:14:01,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:01,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1946960474, now seen corresponding path program 1 times [2024-11-28 03:14:01,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:01,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156379626] [2024-11-28 03:14:01,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:01,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:01,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:01,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:01,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156379626] [2024-11-28 03:14:01,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156379626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:01,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:01,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:01,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707127122] [2024-11-28 03:14:01,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:01,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:01,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:01,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:01,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:01,963 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 779 out of 960 [2024-11-28 03:14:01,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 253 transitions, 1157 flow. Second operand has 3 states, 3 states have (on average 780.3333333333334) internal successors, (2341), 3 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:01,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:01,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 779 of 960 [2024-11-28 03:14:01,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:02,381 INFO L124 PetriNetUnfolderBase]: 51/1254 cut-off events. [2024-11-28 03:14:02,382 INFO L125 PetriNetUnfolderBase]: For 2901/2901 co-relation queries the response was YES. [2024-11-28 03:14:02,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1837 conditions, 1254 events. 51/1254 cut-off events. For 2901/2901 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3251 event pairs, 25 based on Foata normal form. 26/1175 useless extension candidates. Maximal degree in co-relation 1726. Up to 181 conditions per place. [2024-11-28 03:14:02,393 INFO L140 encePairwiseOnDemand]: 954/960 looper letters, 34 selfloop transitions, 2 changer transitions 1/249 dead transitions. [2024-11-28 03:14:02,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 249 transitions, 1221 flow [2024-11-28 03:14:02,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:02,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2377 transitions. [2024-11-28 03:14:02,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8253472222222222 [2024-11-28 03:14:02,396 INFO L175 Difference]: Start difference. First operand has 300 places, 253 transitions, 1157 flow. Second operand 3 states and 2377 transitions. [2024-11-28 03:14:02,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 249 transitions, 1221 flow [2024-11-28 03:14:02,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 249 transitions, 714 flow, removed 253 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:02,410 INFO L231 Difference]: Finished difference. Result has 300 places, 248 transitions, 644 flow [2024-11-28 03:14:02,411 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=960, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=300, PETRI_TRANSITIONS=248} [2024-11-28 03:14:02,411 INFO L279 CegarLoopForPetriNet]: 300 programPoint places, 0 predicate places. [2024-11-28 03:14:02,411 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 248 transitions, 644 flow [2024-11-28 03:14:02,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 780.3333333333334) internal successors, (2341), 3 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:02,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:02,412 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:02,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-28 03:14:02,413 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-28 03:14:02,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:02,413 INFO L85 PathProgramCache]: Analyzing trace with hash -490615346, now seen corresponding path program 1 times [2024-11-28 03:14:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:02,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700913503] [2024-11-28 03:14:02,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:02,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:02,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:02,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700913503] [2024-11-28 03:14:02,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700913503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:02,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:02,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:02,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924710595] [2024-11-28 03:14:02,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:02,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:02,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:02,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:02,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:02,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 729 out of 960 [2024-11-28 03:14:02,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 248 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 730.0) internal successors, (2190), 3 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:02,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:02,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 729 of 960 [2024-11-28 03:14:02,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:02,976 INFO L124 PetriNetUnfolderBase]: 26/1125 cut-off events. [2024-11-28 03:14:02,977 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-28 03:14:02,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1406 conditions, 1125 events. 26/1125 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2433 event pairs, 0 based on Foata normal form. 25/1099 useless extension candidates. Maximal degree in co-relation 1358. Up to 130 conditions per place. [2024-11-28 03:14:02,991 INFO L140 encePairwiseOnDemand]: 954/960 looper letters, 32 selfloop transitions, 1 changer transitions 24/243 dead transitions. [2024-11-28 03:14:02,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 243 transitions, 704 flow [2024-11-28 03:14:02,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2227 transitions. [2024-11-28 03:14:02,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7732638888888889 [2024-11-28 03:14:02,994 INFO L175 Difference]: Start difference. First operand has 300 places, 248 transitions, 644 flow. Second operand 3 states and 2227 transitions. [2024-11-28 03:14:02,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 243 transitions, 704 flow [2024-11-28 03:14:02,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 243 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:02,998 INFO L231 Difference]: Finished difference. Result has 294 places, 219 transitions, 582 flow [2024-11-28 03:14:02,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=960, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=294, PETRI_TRANSITIONS=219} [2024-11-28 03:14:02,999 INFO L279 CegarLoopForPetriNet]: 300 programPoint places, -6 predicate places. [2024-11-28 03:14:02,999 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 219 transitions, 582 flow [2024-11-28 03:14:03,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 730.0) internal successors, (2190), 3 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:03,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:03,000 INFO L206 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:03,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-11-28 03:14:03,000 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-28 03:14:03,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:03,004 INFO L85 PathProgramCache]: Analyzing trace with hash 340334, now seen corresponding path program 1 times [2024-11-28 03:14:03,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:03,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382163758] [2024-11-28 03:14:03,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:03,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:03,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:03,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382163758] [2024-11-28 03:14:03,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382163758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:03,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:03,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:03,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401515954] [2024-11-28 03:14:03,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:03,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:03,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:03,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:03,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:03,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 801 out of 960 [2024-11-28 03:14:03,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 219 transitions, 582 flow. Second operand has 5 states, 5 states have (on average 807.8) internal successors, (4039), 5 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:03,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:03,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 801 of 960 [2024-11-28 03:14:03,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:03,612 INFO L124 PetriNetUnfolderBase]: 0/538 cut-off events. [2024-11-28 03:14:03,612 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2024-11-28 03:14:03,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 538 events. 0/538 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 315 event pairs, 0 based on Foata normal form. 1/538 useless extension candidates. Maximal degree in co-relation 0. Up to 80 conditions per place. [2024-11-28 03:14:03,613 INFO L140 encePairwiseOnDemand]: 955/960 looper letters, 32 selfloop transitions, 2 changer transitions 3/221 dead transitions. [2024-11-28 03:14:03,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 221 transitions, 660 flow [2024-11-28 03:14:03,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:03,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4043 transitions. [2024-11-28 03:14:03,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8422916666666667 [2024-11-28 03:14:03,616 INFO L175 Difference]: Start difference. First operand has 294 places, 219 transitions, 582 flow. Second operand 5 states and 4043 transitions. [2024-11-28 03:14:03,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 221 transitions, 660 flow [2024-11-28 03:14:03,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 221 transitions, 659 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:03,621 INFO L231 Difference]: Finished difference. Result has 274 places, 218 transitions, 587 flow [2024-11-28 03:14:03,622 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=960, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=587, PETRI_PLACES=274, PETRI_TRANSITIONS=218} [2024-11-28 03:14:03,622 INFO L279 CegarLoopForPetriNet]: 300 programPoint places, -26 predicate places. [2024-11-28 03:14:03,622 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 218 transitions, 587 flow [2024-11-28 03:14:03,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 807.8) internal successors, (4039), 5 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:03,623 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:03,623 INFO L206 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:03,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-11-28 03:14:03,624 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-28 03:14:03,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:03,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1433735239, now seen corresponding path program 1 times [2024-11-28 03:14:03,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:03,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302928392] [2024-11-28 03:14:03,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:03,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:03,691 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:03,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:03,842 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:03,842 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-28 03:14:03,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-28 03:14:03,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-28 03:14:03,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-28 03:14:03,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-28 03:14:03,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-28 03:14:03,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 32 remaining) [2024-11-28 03:14:03,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-28 03:14:03,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-28 03:14:03,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-28 03:14:03,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-28 03:14:03,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-28 03:14:03,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-28 03:14:03,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-28 03:14:03,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-28 03:14:03,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-28 03:14:03,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-11-28 03:14:03,846 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:03,847 WARN L246 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:03,847 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-11-28 03:14:04,017 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:04,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 996 places, 997 transitions, 3394 flow [2024-11-28 03:14:04,692 INFO L124 PetriNetUnfolderBase]: 132/1695 cut-off events. [2024-11-28 03:14:04,692 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2024-11-28 03:14:04,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1695 events. 132/1695 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4856 event pairs, 0 based on Foata normal form. 0/1481 useless extension candidates. Maximal degree in co-relation 2097. Up to 52 conditions per place. [2024-11-28 03:14:04,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 996 places, 997 transitions, 3394 flow [2024-11-28 03:14:04,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 260 transitions, 1223 flow [2024-11-28 03:14:04,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:04,708 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:04,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-28 03:14:04,710 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:04,710 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:04,710 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:04,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:04,711 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:04,711 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-28 03:14:04,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:04,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1639628122, now seen corresponding path program 1 times [2024-11-28 03:14:04,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:04,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616818026] [2024-11-28 03:14:04,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:04,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:04,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:04,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616818026] [2024-11-28 03:14:04,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616818026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:04,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:04,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:04,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728556723] [2024-11-28 03:14:04,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:04,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:04,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:04,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:04,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:04,950 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 809 out of 997 [2024-11-28 03:14:04,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 260 transitions, 1223 flow. Second operand has 3 states, 3 states have (on average 810.3333333333334) internal successors, (2431), 3 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:04,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:04,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 809 of 997 [2024-11-28 03:14:04,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:05,441 INFO L124 PetriNetUnfolderBase]: 53/1303 cut-off events. [2024-11-28 03:14:05,442 INFO L125 PetriNetUnfolderBase]: For 3251/3251 co-relation queries the response was YES. [2024-11-28 03:14:05,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 1303 events. 53/1303 cut-off events. For 3251/3251 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3509 event pairs, 26 based on Foata normal form. 53/1247 useless extension candidates. Maximal degree in co-relation 1809. Up to 188 conditions per place. [2024-11-28 03:14:05,456 INFO L140 encePairwiseOnDemand]: 991/997 looper letters, 35 selfloop transitions, 2 changer transitions 1/256 dead transitions. [2024-11-28 03:14:05,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 256 transitions, 1289 flow [2024-11-28 03:14:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:05,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2468 transitions. [2024-11-28 03:14:05,460 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8251420929455032 [2024-11-28 03:14:05,460 INFO L175 Difference]: Start difference. First operand has 309 places, 260 transitions, 1223 flow. Second operand 3 states and 2468 transitions. [2024-11-28 03:14:05,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 256 transitions, 1289 flow [2024-11-28 03:14:05,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 256 transitions, 736 flow, removed 276 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:05,470 INFO L231 Difference]: Finished difference. Result has 309 places, 255 transitions, 664 flow [2024-11-28 03:14:05,471 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=997, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=309, PETRI_TRANSITIONS=255} [2024-11-28 03:14:05,471 INFO L279 CegarLoopForPetriNet]: 309 programPoint places, 0 predicate places. [2024-11-28 03:14:05,471 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 255 transitions, 664 flow [2024-11-28 03:14:05,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 810.3333333333334) internal successors, (2431), 3 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:05,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:05,472 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:05,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-11-28 03:14:05,472 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-28 03:14:05,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1197661170, now seen corresponding path program 1 times [2024-11-28 03:14:05,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:05,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414375772] [2024-11-28 03:14:05,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:05,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:05,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:05,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414375772] [2024-11-28 03:14:05,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414375772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:05,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:05,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:05,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550410836] [2024-11-28 03:14:05,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:05,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:05,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:05,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:05,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:05,625 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 757 out of 997 [2024-11-28 03:14:05,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 255 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 758.0) internal successors, (2274), 3 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:05,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:05,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 757 of 997 [2024-11-28 03:14:05,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:06,227 INFO L124 PetriNetUnfolderBase]: 27/1169 cut-off events. [2024-11-28 03:14:06,228 INFO L125 PetriNetUnfolderBase]: For 374/374 co-relation queries the response was YES. [2024-11-28 03:14:06,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1461 conditions, 1169 events. 27/1169 cut-off events. For 374/374 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2585 event pairs, 0 based on Foata normal form. 26/1142 useless extension candidates. Maximal degree in co-relation 1412. Up to 135 conditions per place. [2024-11-28 03:14:06,246 INFO L140 encePairwiseOnDemand]: 991/997 looper letters, 33 selfloop transitions, 1 changer transitions 24/250 dead transitions. [2024-11-28 03:14:06,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 250 transitions, 726 flow [2024-11-28 03:14:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:06,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2312 transitions. [2024-11-28 03:14:06,250 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7729856235372785 [2024-11-28 03:14:06,250 INFO L175 Difference]: Start difference. First operand has 309 places, 255 transitions, 664 flow. Second operand 3 states and 2312 transitions. [2024-11-28 03:14:06,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 250 transitions, 726 flow [2024-11-28 03:14:06,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 250 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:06,258 INFO L231 Difference]: Finished difference. Result has 303 places, 226 transitions, 602 flow [2024-11-28 03:14:06,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=997, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=303, PETRI_TRANSITIONS=226} [2024-11-28 03:14:06,259 INFO L279 CegarLoopForPetriNet]: 309 programPoint places, -6 predicate places. [2024-11-28 03:14:06,259 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 226 transitions, 602 flow [2024-11-28 03:14:06,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 758.0) internal successors, (2274), 3 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:06,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:06,260 INFO L206 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:06,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-11-28 03:14:06,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-28 03:14:06,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:06,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2057549407, now seen corresponding path program 1 times [2024-11-28 03:14:06,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:06,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175916666] [2024-11-28 03:14:06,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:06,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:06,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:06,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175916666] [2024-11-28 03:14:06,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175916666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:06,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:06,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:06,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572655013] [2024-11-28 03:14:06,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:06,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:06,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:06,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:06,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:06,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 832 out of 997 [2024-11-28 03:14:06,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 226 transitions, 602 flow. Second operand has 5 states, 5 states have (on average 839.0) internal successors, (4195), 5 states have internal predecessors, (4195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:06,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:06,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 832 of 997 [2024-11-28 03:14:06,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:06,916 INFO L124 PetriNetUnfolderBase]: 0/558 cut-off events. [2024-11-28 03:14:06,917 INFO L125 PetriNetUnfolderBase]: For 373/373 co-relation queries the response was YES. [2024-11-28 03:14:06,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 558 events. 0/558 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 327 event pairs, 0 based on Foata normal form. 1/558 useless extension candidates. Maximal degree in co-relation 0. Up to 83 conditions per place. [2024-11-28 03:14:06,918 INFO L140 encePairwiseOnDemand]: 992/997 looper letters, 33 selfloop transitions, 2 changer transitions 3/228 dead transitions. [2024-11-28 03:14:06,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 228 transitions, 682 flow [2024-11-28 03:14:06,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4199 transitions. [2024-11-28 03:14:06,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8423269809428285 [2024-11-28 03:14:06,923 INFO L175 Difference]: Start difference. First operand has 303 places, 226 transitions, 602 flow. Second operand 5 states and 4199 transitions. [2024-11-28 03:14:06,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 228 transitions, 682 flow [2024-11-28 03:14:06,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 228 transitions, 681 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:06,929 INFO L231 Difference]: Finished difference. Result has 283 places, 225 transitions, 607 flow [2024-11-28 03:14:06,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=997, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=607, PETRI_PLACES=283, PETRI_TRANSITIONS=225} [2024-11-28 03:14:06,930 INFO L279 CegarLoopForPetriNet]: 309 programPoint places, -26 predicate places. [2024-11-28 03:14:06,930 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 225 transitions, 607 flow [2024-11-28 03:14:06,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 839.0) internal successors, (4195), 5 states have internal predecessors, (4195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:06,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:06,931 INFO L206 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:06,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-11-28 03:14:06,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-28 03:14:06,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1056660859, now seen corresponding path program 1 times [2024-11-28 03:14:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:06,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59381830] [2024-11-28 03:14:06,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:06,998 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:07,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:07,163 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-28 03:14:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-28 03:14:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-28 03:14:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-28 03:14:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-28 03:14:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-28 03:14:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-28 03:14:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-28 03:14:07,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-28 03:14:07,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-28 03:14:07,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-11-28 03:14:07,166 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:07,166 WARN L246 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:07,166 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2024-11-28 03:14:07,337 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:07,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1033 places, 1034 transitions, 3576 flow [2024-11-28 03:14:07,828 INFO L124 PetriNetUnfolderBase]: 137/1759 cut-off events. [2024-11-28 03:14:07,828 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2024-11-28 03:14:07,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2243 conditions, 1759 events. 137/1759 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5008 event pairs, 0 based on Foata normal form. 0/1537 useless extension candidates. Maximal degree in co-relation 2190. Up to 54 conditions per place. [2024-11-28 03:14:07,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 1033 places, 1034 transitions, 3576 flow [2024-11-28 03:14:07,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 267 transitions, 1291 flow [2024-11-28 03:14:07,866 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:07,866 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:07,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-28 03:14:07,868 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:07,868 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:07,869 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:07,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:07,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:07,869 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-28 03:14:07,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:07,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1381200730, now seen corresponding path program 1 times [2024-11-28 03:14:07,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:07,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881948590] [2024-11-28 03:14:07,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:07,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:07,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:07,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881948590] [2024-11-28 03:14:07,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881948590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:07,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:07,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:07,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995127165] [2024-11-28 03:14:07,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:07,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:07,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:07,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:07,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:08,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 839 out of 1034 [2024-11-28 03:14:08,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 267 transitions, 1291 flow. Second operand has 3 states, 3 states have (on average 840.3333333333334) internal successors, (2521), 3 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:08,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:08,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 839 of 1034 [2024-11-28 03:14:08,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:08,553 INFO L124 PetriNetUnfolderBase]: 55/1352 cut-off events. [2024-11-28 03:14:08,554 INFO L125 PetriNetUnfolderBase]: For 3628/3628 co-relation queries the response was YES. [2024-11-28 03:14:08,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2008 conditions, 1352 events. 55/1352 cut-off events. For 3628/3628 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3646 event pairs, 27 based on Foata normal form. 55/1294 useless extension candidates. Maximal degree in co-relation 1893. Up to 195 conditions per place. [2024-11-28 03:14:08,568 INFO L140 encePairwiseOnDemand]: 1028/1034 looper letters, 36 selfloop transitions, 2 changer transitions 1/263 dead transitions. [2024-11-28 03:14:08,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 263 transitions, 1359 flow [2024-11-28 03:14:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:08,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2559 transitions. [2024-11-28 03:14:08,571 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8249516441005803 [2024-11-28 03:14:08,571 INFO L175 Difference]: Start difference. First operand has 318 places, 267 transitions, 1291 flow. Second operand 3 states and 2559 transitions. [2024-11-28 03:14:08,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 263 transitions, 1359 flow [2024-11-28 03:14:08,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 263 transitions, 758 flow, removed 300 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:08,579 INFO L231 Difference]: Finished difference. Result has 318 places, 262 transitions, 684 flow [2024-11-28 03:14:08,580 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1034, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=318, PETRI_TRANSITIONS=262} [2024-11-28 03:14:08,580 INFO L279 CegarLoopForPetriNet]: 318 programPoint places, 0 predicate places. [2024-11-28 03:14:08,580 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 262 transitions, 684 flow [2024-11-28 03:14:08,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 840.3333333333334) internal successors, (2521), 3 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:08,581 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:08,581 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:08,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-11-28 03:14:08,581 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-28 03:14:08,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:08,582 INFO L85 PathProgramCache]: Analyzing trace with hash -785047410, now seen corresponding path program 1 times [2024-11-28 03:14:08,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:08,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265293954] [2024-11-28 03:14:08,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:08,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:08,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265293954] [2024-11-28 03:14:08,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265293954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:08,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:08,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:08,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782945757] [2024-11-28 03:14:08,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:08,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:08,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:08,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:08,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:08,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 785 out of 1034 [2024-11-28 03:14:08,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 262 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 786.0) internal successors, (2358), 3 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:08,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:08,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 785 of 1034 [2024-11-28 03:14:08,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:09,070 INFO L124 PetriNetUnfolderBase]: 28/1213 cut-off events. [2024-11-28 03:14:09,070 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-11-28 03:14:09,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 1213 events. 28/1213 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2687 event pairs, 0 based on Foata normal form. 27/1185 useless extension candidates. Maximal degree in co-relation 1466. Up to 140 conditions per place. [2024-11-28 03:14:09,082 INFO L140 encePairwiseOnDemand]: 1028/1034 looper letters, 34 selfloop transitions, 1 changer transitions 24/257 dead transitions. [2024-11-28 03:14:09,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 257 transitions, 748 flow [2024-11-28 03:14:09,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:09,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:09,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2397 transitions. [2024-11-28 03:14:09,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2024-11-28 03:14:09,084 INFO L175 Difference]: Start difference. First operand has 318 places, 262 transitions, 684 flow. Second operand 3 states and 2397 transitions. [2024-11-28 03:14:09,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 257 transitions, 748 flow [2024-11-28 03:14:09,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 257 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:09,088 INFO L231 Difference]: Finished difference. Result has 312 places, 233 transitions, 622 flow [2024-11-28 03:14:09,088 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1034, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=312, PETRI_TRANSITIONS=233} [2024-11-28 03:14:09,088 INFO L279 CegarLoopForPetriNet]: 318 programPoint places, -6 predicate places. [2024-11-28 03:14:09,088 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 233 transitions, 622 flow [2024-11-28 03:14:09,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 786.0) internal successors, (2358), 3 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:09,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:09,089 INFO L206 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:09,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-11-28 03:14:09,090 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-28 03:14:09,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:09,092 INFO L85 PathProgramCache]: Analyzing trace with hash 503374846, now seen corresponding path program 1 times [2024-11-28 03:14:09,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:09,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495026017] [2024-11-28 03:14:09,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:09,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:09,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:09,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495026017] [2024-11-28 03:14:09,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495026017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:09,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:09,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:09,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283658077] [2024-11-28 03:14:09,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:09,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:09,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:09,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:09,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:09,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 1034 [2024-11-28 03:14:09,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 233 transitions, 622 flow. Second operand has 5 states, 5 states have (on average 870.2) internal successors, (4351), 5 states have internal predecessors, (4351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:09,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:09,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 1034 [2024-11-28 03:14:09,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:09,591 INFO L124 PetriNetUnfolderBase]: 0/578 cut-off events. [2024-11-28 03:14:09,591 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-28 03:14:09,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 578 events. 0/578 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 339 event pairs, 0 based on Foata normal form. 1/578 useless extension candidates. Maximal degree in co-relation 0. Up to 86 conditions per place. [2024-11-28 03:14:09,592 INFO L140 encePairwiseOnDemand]: 1029/1034 looper letters, 34 selfloop transitions, 2 changer transitions 3/235 dead transitions. [2024-11-28 03:14:09,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 235 transitions, 704 flow [2024-11-28 03:14:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4355 transitions. [2024-11-28 03:14:09,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8423597678916828 [2024-11-28 03:14:09,596 INFO L175 Difference]: Start difference. First operand has 312 places, 233 transitions, 622 flow. Second operand 5 states and 4355 transitions. [2024-11-28 03:14:09,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 235 transitions, 704 flow [2024-11-28 03:14:09,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 235 transitions, 703 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:09,600 INFO L231 Difference]: Finished difference. Result has 292 places, 232 transitions, 627 flow [2024-11-28 03:14:09,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1034, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=627, PETRI_PLACES=292, PETRI_TRANSITIONS=232} [2024-11-28 03:14:09,600 INFO L279 CegarLoopForPetriNet]: 318 programPoint places, -26 predicate places. [2024-11-28 03:14:09,601 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 232 transitions, 627 flow [2024-11-28 03:14:09,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 870.2) internal successors, (4351), 5 states have internal predecessors, (4351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:09,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:09,601 INFO L206 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:09,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-11-28 03:14:09,602 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-28 03:14:09,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:09,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1315065114, now seen corresponding path program 1 times [2024-11-28 03:14:09,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:09,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409776056] [2024-11-28 03:14:09,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:09,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:09,649 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:09,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:09,802 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:09,802 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-11-28 03:14:09,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 34 remaining) [2024-11-28 03:14:09,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 34 remaining) [2024-11-28 03:14:09,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 34 remaining) [2024-11-28 03:14:09,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 34 remaining) [2024-11-28 03:14:09,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 34 remaining) [2024-11-28 03:14:09,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 34 remaining) [2024-11-28 03:14:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 34 remaining) [2024-11-28 03:14:09,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 34 remaining) [2024-11-28 03:14:09,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-11-28 03:14:09,805 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:09,806 WARN L246 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:09,806 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2024-11-28 03:14:09,984 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:09,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1070 places, 1071 transitions, 3762 flow [2024-11-28 03:14:10,469 INFO L124 PetriNetUnfolderBase]: 142/1823 cut-off events. [2024-11-28 03:14:10,469 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2024-11-28 03:14:10,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 1823 events. 142/1823 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5093 event pairs, 0 based on Foata normal form. 0/1593 useless extension candidates. Maximal degree in co-relation 2284. Up to 56 conditions per place. [2024-11-28 03:14:10,491 INFO L82 GeneralOperation]: Start removeDead. Operand has 1070 places, 1071 transitions, 3762 flow [2024-11-28 03:14:10,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 274 transitions, 1361 flow [2024-11-28 03:14:10,495 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:10,496 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:10,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-28 03:14:10,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:10,498 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:10,498 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:10,498 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:10,498 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:10,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 03:14:10,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:10,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1171678298, now seen corresponding path program 1 times [2024-11-28 03:14:10,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:10,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472408688] [2024-11-28 03:14:10,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:10,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:10,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:10,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472408688] [2024-11-28 03:14:10,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472408688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:10,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:10,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:10,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966383831] [2024-11-28 03:14:10,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:10,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:10,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:10,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:10,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:10,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 1071 [2024-11-28 03:14:10,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 274 transitions, 1361 flow. Second operand has 3 states, 3 states have (on average 870.3333333333334) internal successors, (2611), 3 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:10,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:10,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 1071 [2024-11-28 03:14:10,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:11,155 INFO L124 PetriNetUnfolderBase]: 57/1401 cut-off events. [2024-11-28 03:14:11,156 INFO L125 PetriNetUnfolderBase]: For 4033/4033 co-relation queries the response was YES. [2024-11-28 03:14:11,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 1401 events. 57/1401 cut-off events. For 4033/4033 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3776 event pairs, 28 based on Foata normal form. 57/1341 useless extension candidates. Maximal degree in co-relation 1978. Up to 202 conditions per place. [2024-11-28 03:14:11,169 INFO L140 encePairwiseOnDemand]: 1065/1071 looper letters, 37 selfloop transitions, 2 changer transitions 1/270 dead transitions. [2024-11-28 03:14:11,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 270 transitions, 1431 flow [2024-11-28 03:14:11,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:11,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2650 transitions. [2024-11-28 03:14:11,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8247743541861189 [2024-11-28 03:14:11,171 INFO L175 Difference]: Start difference. First operand has 327 places, 274 transitions, 1361 flow. Second operand 3 states and 2650 transitions. [2024-11-28 03:14:11,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 270 transitions, 1431 flow [2024-11-28 03:14:11,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 270 transitions, 780 flow, removed 325 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:11,181 INFO L231 Difference]: Finished difference. Result has 327 places, 269 transitions, 704 flow [2024-11-28 03:14:11,181 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1071, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=327, PETRI_TRANSITIONS=269} [2024-11-28 03:14:11,182 INFO L279 CegarLoopForPetriNet]: 327 programPoint places, 0 predicate places. [2024-11-28 03:14:11,182 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 269 transitions, 704 flow [2024-11-28 03:14:11,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 870.3333333333334) internal successors, (2611), 3 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:11,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:11,182 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:11,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-11-28 03:14:11,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 03:14:11,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:11,183 INFO L85 PathProgramCache]: Analyzing trace with hash 747225934, now seen corresponding path program 1 times [2024-11-28 03:14:11,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:11,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146348911] [2024-11-28 03:14:11,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:11,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:11,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:11,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:11,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146348911] [2024-11-28 03:14:11,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146348911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:11,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:11,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:11,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887361377] [2024-11-28 03:14:11,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:11,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:11,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:11,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:11,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:11,309 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 813 out of 1071 [2024-11-28 03:14:11,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 269 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 814.0) internal successors, (2442), 3 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:11,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:11,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 813 of 1071 [2024-11-28 03:14:11,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:11,682 INFO L124 PetriNetUnfolderBase]: 29/1257 cut-off events. [2024-11-28 03:14:11,682 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-28 03:14:11,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 1257 events. 29/1257 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2789 event pairs, 0 based on Foata normal form. 28/1228 useless extension candidates. Maximal degree in co-relation 1520. Up to 145 conditions per place. [2024-11-28 03:14:11,695 INFO L140 encePairwiseOnDemand]: 1065/1071 looper letters, 35 selfloop transitions, 1 changer transitions 24/264 dead transitions. [2024-11-28 03:14:11,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 264 transitions, 770 flow [2024-11-28 03:14:11,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2482 transitions. [2024-11-28 03:14:11,697 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7724867724867724 [2024-11-28 03:14:11,697 INFO L175 Difference]: Start difference. First operand has 327 places, 269 transitions, 704 flow. Second operand 3 states and 2482 transitions. [2024-11-28 03:14:11,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 264 transitions, 770 flow [2024-11-28 03:14:11,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 264 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:11,701 INFO L231 Difference]: Finished difference. Result has 321 places, 240 transitions, 642 flow [2024-11-28 03:14:11,701 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1071, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=321, PETRI_TRANSITIONS=240} [2024-11-28 03:14:11,701 INFO L279 CegarLoopForPetriNet]: 327 programPoint places, -6 predicate places. [2024-11-28 03:14:11,701 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 240 transitions, 642 flow [2024-11-28 03:14:11,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 814.0) internal successors, (2442), 3 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:11,702 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:11,702 INFO L206 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:11,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-11-28 03:14:11,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 03:14:11,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:11,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2012796309, now seen corresponding path program 1 times [2024-11-28 03:14:11,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:11,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752493419] [2024-11-28 03:14:11,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:11,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:11,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:11,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:11,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752493419] [2024-11-28 03:14:11,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752493419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:11,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:11,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:11,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839823869] [2024-11-28 03:14:11,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:11,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:11,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:11,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:11,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:12,083 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 894 out of 1071 [2024-11-28 03:14:12,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 240 transitions, 642 flow. Second operand has 5 states, 5 states have (on average 901.4) internal successors, (4507), 5 states have internal predecessors, (4507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:12,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:12,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 894 of 1071 [2024-11-28 03:14:12,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:12,320 INFO L124 PetriNetUnfolderBase]: 0/598 cut-off events. [2024-11-28 03:14:12,320 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-11-28 03:14:12,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 598 events. 0/598 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 351 event pairs, 0 based on Foata normal form. 1/598 useless extension candidates. Maximal degree in co-relation 0. Up to 89 conditions per place. [2024-11-28 03:14:12,321 INFO L140 encePairwiseOnDemand]: 1066/1071 looper letters, 35 selfloop transitions, 2 changer transitions 3/242 dead transitions. [2024-11-28 03:14:12,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 242 transitions, 726 flow [2024-11-28 03:14:12,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:12,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:12,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4511 transitions. [2024-11-28 03:14:12,324 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.842390289449113 [2024-11-28 03:14:12,324 INFO L175 Difference]: Start difference. First operand has 321 places, 240 transitions, 642 flow. Second operand 5 states and 4511 transitions. [2024-11-28 03:14:12,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 242 transitions, 726 flow [2024-11-28 03:14:12,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 242 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:12,328 INFO L231 Difference]: Finished difference. Result has 301 places, 239 transitions, 647 flow [2024-11-28 03:14:12,328 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1071, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=647, PETRI_PLACES=301, PETRI_TRANSITIONS=239} [2024-11-28 03:14:12,329 INFO L279 CegarLoopForPetriNet]: 327 programPoint places, -26 predicate places. [2024-11-28 03:14:12,329 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 239 transitions, 647 flow [2024-11-28 03:14:12,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 901.4) internal successors, (4507), 5 states have internal predecessors, (4507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:12,329 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:12,330 INFO L206 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:12,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-11-28 03:14:12,330 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 03:14:12,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:12,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1985860136, now seen corresponding path program 1 times [2024-11-28 03:14:12,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:12,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995552402] [2024-11-28 03:14:12,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:12,393 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:12,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:12,582 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:12,582 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-28 03:14:12,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2024-11-28 03:14:12,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2024-11-28 03:14:12,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2024-11-28 03:14:12,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2024-11-28 03:14:12,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2024-11-28 03:14:12,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 35 remaining) [2024-11-28 03:14:12,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2024-11-28 03:14:12,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2024-11-28 03:14:12,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2024-11-28 03:14:12,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2024-11-28 03:14:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2024-11-28 03:14:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 35 remaining) [2024-11-28 03:14:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2024-11-28 03:14:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2024-11-28 03:14:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2024-11-28 03:14:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2024-11-28 03:14:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2024-11-28 03:14:12,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2024-11-28 03:14:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2024-11-28 03:14:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2024-11-28 03:14:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2024-11-28 03:14:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2024-11-28 03:14:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2024-11-28 03:14:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2024-11-28 03:14:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2024-11-28 03:14:12,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2024-11-28 03:14:12,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-11-28 03:14:12,587 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:12,587 WARN L246 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:12,587 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2024-11-28 03:14:12,761 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:12,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1107 places, 1108 transitions, 3952 flow [2024-11-28 03:14:13,261 INFO L124 PetriNetUnfolderBase]: 147/1887 cut-off events. [2024-11-28 03:14:13,262 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2024-11-28 03:14:13,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2436 conditions, 1887 events. 147/1887 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5236 event pairs, 0 based on Foata normal form. 0/1649 useless extension candidates. Maximal degree in co-relation 2379. Up to 58 conditions per place. [2024-11-28 03:14:13,284 INFO L82 GeneralOperation]: Start removeDead. Operand has 1107 places, 1108 transitions, 3952 flow [2024-11-28 03:14:13,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 281 transitions, 1433 flow [2024-11-28 03:14:13,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:13,289 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:13,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-28 03:14:13,290 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:13,290 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:13,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:13,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:13,290 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:13,290 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-28 03:14:13,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1011060826, now seen corresponding path program 1 times [2024-11-28 03:14:13,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:13,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927405951] [2024-11-28 03:14:13,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:13,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:13,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927405951] [2024-11-28 03:14:13,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927405951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:13,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:13,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:13,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624766266] [2024-11-28 03:14:13,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:13,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:13,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:13,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:13,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:13,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 899 out of 1108 [2024-11-28 03:14:13,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 281 transitions, 1433 flow. Second operand has 3 states, 3 states have (on average 900.3333333333334) internal successors, (2701), 3 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:13,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:13,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 899 of 1108 [2024-11-28 03:14:13,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:14,073 INFO L124 PetriNetUnfolderBase]: 59/1450 cut-off events. [2024-11-28 03:14:14,073 INFO L125 PetriNetUnfolderBase]: For 4467/4467 co-relation queries the response was YES. [2024-11-28 03:14:14,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 1450 events. 59/1450 cut-off events. For 4467/4467 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3928 event pairs, 29 based on Foata normal form. 59/1388 useless extension candidates. Maximal degree in co-relation 2064. Up to 209 conditions per place. [2024-11-28 03:14:14,090 INFO L140 encePairwiseOnDemand]: 1102/1108 looper letters, 38 selfloop transitions, 2 changer transitions 1/277 dead transitions. [2024-11-28 03:14:14,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 277 transitions, 1505 flow [2024-11-28 03:14:14,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:14,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:14,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2741 transitions. [2024-11-28 03:14:14,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8246089049338147 [2024-11-28 03:14:14,092 INFO L175 Difference]: Start difference. First operand has 336 places, 281 transitions, 1433 flow. Second operand 3 states and 2741 transitions. [2024-11-28 03:14:14,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 277 transitions, 1505 flow [2024-11-28 03:14:14,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 277 transitions, 802 flow, removed 351 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:14,103 INFO L231 Difference]: Finished difference. Result has 336 places, 276 transitions, 724 flow [2024-11-28 03:14:14,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1108, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=336, PETRI_TRANSITIONS=276} [2024-11-28 03:14:14,104 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, 0 predicate places. [2024-11-28 03:14:14,104 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 276 transitions, 724 flow [2024-11-28 03:14:14,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 900.3333333333334) internal successors, (2701), 3 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:14,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:14,104 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:14,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-11-28 03:14:14,104 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-28 03:14:14,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:14,105 INFO L85 PathProgramCache]: Analyzing trace with hash -895808434, now seen corresponding path program 1 times [2024-11-28 03:14:14,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:14,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314739578] [2024-11-28 03:14:14,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:14,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:14,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:14,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314739578] [2024-11-28 03:14:14,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314739578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:14,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:14,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:14,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713315794] [2024-11-28 03:14:14,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:14,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:14,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:14,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:14,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:14,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 841 out of 1108 [2024-11-28 03:14:14,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 276 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 842.0) internal successors, (2526), 3 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:14,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:14,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 841 of 1108 [2024-11-28 03:14:14,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:14,686 INFO L124 PetriNetUnfolderBase]: 30/1301 cut-off events. [2024-11-28 03:14:14,686 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-28 03:14:14,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1626 conditions, 1301 events. 30/1301 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2892 event pairs, 0 based on Foata normal form. 29/1271 useless extension candidates. Maximal degree in co-relation 1574. Up to 150 conditions per place. [2024-11-28 03:14:14,700 INFO L140 encePairwiseOnDemand]: 1102/1108 looper letters, 36 selfloop transitions, 1 changer transitions 24/271 dead transitions. [2024-11-28 03:14:14,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 271 transitions, 792 flow [2024-11-28 03:14:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:14,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2567 transitions. [2024-11-28 03:14:14,702 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7722623345367028 [2024-11-28 03:14:14,702 INFO L175 Difference]: Start difference. First operand has 336 places, 276 transitions, 724 flow. Second operand 3 states and 2567 transitions. [2024-11-28 03:14:14,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 271 transitions, 792 flow [2024-11-28 03:14:14,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 271 transitions, 788 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:14,707 INFO L231 Difference]: Finished difference. Result has 330 places, 247 transitions, 662 flow [2024-11-28 03:14:14,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1108, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=330, PETRI_TRANSITIONS=247} [2024-11-28 03:14:14,707 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, -6 predicate places. [2024-11-28 03:14:14,707 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 247 transitions, 662 flow [2024-11-28 03:14:14,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 842.0) internal successors, (2526), 3 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:14,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:14,708 INFO L206 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:14,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-11-28 03:14:14,708 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-28 03:14:14,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:14,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2073691706, now seen corresponding path program 1 times [2024-11-28 03:14:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:14,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380987183] [2024-11-28 03:14:14,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:14,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:14,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:14,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380987183] [2024-11-28 03:14:14,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380987183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:14,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:14,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:14,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813295368] [2024-11-28 03:14:14,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:14,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:14,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:14,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:14,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:15,063 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 925 out of 1108 [2024-11-28 03:14:15,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 247 transitions, 662 flow. Second operand has 5 states, 5 states have (on average 932.6) internal successors, (4663), 5 states have internal predecessors, (4663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:15,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:15,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 925 of 1108 [2024-11-28 03:14:15,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:15,291 INFO L124 PetriNetUnfolderBase]: 0/618 cut-off events. [2024-11-28 03:14:15,291 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES. [2024-11-28 03:14:15,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 618 events. 0/618 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 362 event pairs, 0 based on Foata normal form. 1/618 useless extension candidates. Maximal degree in co-relation 0. Up to 92 conditions per place. [2024-11-28 03:14:15,292 INFO L140 encePairwiseOnDemand]: 1103/1108 looper letters, 36 selfloop transitions, 2 changer transitions 3/249 dead transitions. [2024-11-28 03:14:15,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 249 transitions, 748 flow [2024-11-28 03:14:15,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:15,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4667 transitions. [2024-11-28 03:14:15,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8424187725631769 [2024-11-28 03:14:15,295 INFO L175 Difference]: Start difference. First operand has 330 places, 247 transitions, 662 flow. Second operand 5 states and 4667 transitions. [2024-11-28 03:14:15,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 249 transitions, 748 flow [2024-11-28 03:14:15,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 249 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:15,299 INFO L231 Difference]: Finished difference. Result has 310 places, 246 transitions, 667 flow [2024-11-28 03:14:15,299 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1108, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=667, PETRI_PLACES=310, PETRI_TRANSITIONS=246} [2024-11-28 03:14:15,300 INFO L279 CegarLoopForPetriNet]: 336 programPoint places, -26 predicate places. [2024-11-28 03:14:15,300 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 246 transitions, 667 flow [2024-11-28 03:14:15,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 932.6) internal successors, (4663), 5 states have internal predecessors, (4663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:15,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:15,301 INFO L206 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:15,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-11-28 03:14:15,301 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-28 03:14:15,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:15,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1118020383, now seen corresponding path program 1 times [2024-11-28 03:14:15,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:15,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665250988] [2024-11-28 03:14:15,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:15,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:15,362 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:15,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:15,540 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:15,540 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-28 03:14:15,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-28 03:14:15,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-28 03:14:15,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-28 03:14:15,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-28 03:14:15,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-28 03:14:15,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-28 03:14:15,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-28 03:14:15,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-28 03:14:15,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-28 03:14:15,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-28 03:14:15,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-28 03:14:15,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-28 03:14:15,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-28 03:14:15,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-11-28 03:14:15,543 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:15,544 WARN L246 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:15,544 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2024-11-28 03:14:15,707 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:15,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1144 places, 1145 transitions, 4146 flow [2024-11-28 03:14:16,351 INFO L124 PetriNetUnfolderBase]: 152/1951 cut-off events. [2024-11-28 03:14:16,351 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2024-11-28 03:14:16,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2534 conditions, 1951 events. 152/1951 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5534 event pairs, 0 based on Foata normal form. 0/1705 useless extension candidates. Maximal degree in co-relation 2475. Up to 60 conditions per place. [2024-11-28 03:14:16,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 1144 places, 1145 transitions, 4146 flow [2024-11-28 03:14:16,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 288 transitions, 1507 flow [2024-11-28 03:14:16,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:16,371 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:16,371 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-28 03:14:16,374 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:16,374 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:16,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:16,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:16,374 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:16,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-28 03:14:16,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:16,375 INFO L85 PathProgramCache]: Analyzing trace with hash -899348314, now seen corresponding path program 1 times [2024-11-28 03:14:16,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:16,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385506038] [2024-11-28 03:14:16,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:16,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:16,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:16,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385506038] [2024-11-28 03:14:16,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385506038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:16,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:16,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:16,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113929837] [2024-11-28 03:14:16,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:16,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:16,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:16,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:16,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:16,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 929 out of 1145 [2024-11-28 03:14:16,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 288 transitions, 1507 flow. Second operand has 3 states, 3 states have (on average 930.3333333333334) internal successors, (2791), 3 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:16,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:16,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 929 of 1145 [2024-11-28 03:14:16,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:17,296 INFO L124 PetriNetUnfolderBase]: 61/1499 cut-off events. [2024-11-28 03:14:17,296 INFO L125 PetriNetUnfolderBase]: For 4931/4931 co-relation queries the response was YES. [2024-11-28 03:14:17,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2272 conditions, 1499 events. 61/1499 cut-off events. For 4931/4931 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3935 event pairs, 30 based on Foata normal form. 31/1405 useless extension candidates. Maximal degree in co-relation 2151. Up to 216 conditions per place. [2024-11-28 03:14:17,309 INFO L140 encePairwiseOnDemand]: 1139/1145 looper letters, 39 selfloop transitions, 2 changer transitions 1/284 dead transitions. [2024-11-28 03:14:17,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 284 transitions, 1581 flow [2024-11-28 03:14:17,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:17,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2832 transitions. [2024-11-28 03:14:17,311 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8244541484716157 [2024-11-28 03:14:17,311 INFO L175 Difference]: Start difference. First operand has 345 places, 288 transitions, 1507 flow. Second operand 3 states and 2832 transitions. [2024-11-28 03:14:17,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 284 transitions, 1581 flow [2024-11-28 03:14:17,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 284 transitions, 824 flow, removed 378 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:17,322 INFO L231 Difference]: Finished difference. Result has 345 places, 283 transitions, 744 flow [2024-11-28 03:14:17,323 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1145, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=345, PETRI_TRANSITIONS=283} [2024-11-28 03:14:17,323 INFO L279 CegarLoopForPetriNet]: 345 programPoint places, 0 predicate places. [2024-11-28 03:14:17,323 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 283 transitions, 744 flow [2024-11-28 03:14:17,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 930.3333333333334) internal successors, (2791), 3 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:17,324 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:17,324 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:17,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-11-28 03:14:17,324 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-28 03:14:17,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:17,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1419183218, now seen corresponding path program 1 times [2024-11-28 03:14:17,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:17,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836601759] [2024-11-28 03:14:17,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:17,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:17,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:17,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836601759] [2024-11-28 03:14:17,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836601759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:17,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:17,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:17,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332742878] [2024-11-28 03:14:17,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:17,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:17,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:17,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:17,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:17,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 1145 [2024-11-28 03:14:17,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 283 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 870.0) internal successors, (2610), 3 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:17,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:17,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 1145 [2024-11-28 03:14:17,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:17,932 INFO L124 PetriNetUnfolderBase]: 31/1345 cut-off events. [2024-11-28 03:14:17,932 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-28 03:14:17,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 1345 events. 31/1345 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2934 event pairs, 0 based on Foata normal form. 30/1314 useless extension candidates. Maximal degree in co-relation 1628. Up to 155 conditions per place. [2024-11-28 03:14:17,946 INFO L140 encePairwiseOnDemand]: 1139/1145 looper letters, 37 selfloop transitions, 1 changer transitions 24/278 dead transitions. [2024-11-28 03:14:17,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 278 transitions, 814 flow [2024-11-28 03:14:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2652 transitions. [2024-11-28 03:14:17,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7720524017467248 [2024-11-28 03:14:17,949 INFO L175 Difference]: Start difference. First operand has 345 places, 283 transitions, 744 flow. Second operand 3 states and 2652 transitions. [2024-11-28 03:14:17,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 278 transitions, 814 flow [2024-11-28 03:14:17,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 278 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:17,954 INFO L231 Difference]: Finished difference. Result has 339 places, 254 transitions, 682 flow [2024-11-28 03:14:17,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1145, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=339, PETRI_TRANSITIONS=254} [2024-11-28 03:14:17,955 INFO L279 CegarLoopForPetriNet]: 345 programPoint places, -6 predicate places. [2024-11-28 03:14:17,955 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 254 transitions, 682 flow [2024-11-28 03:14:17,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 870.0) internal successors, (2610), 3 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:17,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:17,956 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:17,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-11-28 03:14:17,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-28 03:14:17,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:17,959 INFO L85 PathProgramCache]: Analyzing trace with hash -37109201, now seen corresponding path program 1 times [2024-11-28 03:14:17,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:17,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895807144] [2024-11-28 03:14:17,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:17,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:18,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:18,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895807144] [2024-11-28 03:14:18,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895807144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:18,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:18,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:18,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545750146] [2024-11-28 03:14:18,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:18,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:18,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:18,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:18,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:18,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 956 out of 1145 [2024-11-28 03:14:18,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 254 transitions, 682 flow. Second operand has 5 states, 5 states have (on average 963.8) internal successors, (4819), 5 states have internal predecessors, (4819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:18,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:18,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 956 of 1145 [2024-11-28 03:14:18,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:18,726 INFO L124 PetriNetUnfolderBase]: 0/638 cut-off events. [2024-11-28 03:14:18,726 INFO L125 PetriNetUnfolderBase]: For 491/491 co-relation queries the response was YES. [2024-11-28 03:14:18,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 638 events. 0/638 cut-off events. For 491/491 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 376 event pairs, 0 based on Foata normal form. 1/638 useless extension candidates. Maximal degree in co-relation 0. Up to 95 conditions per place. [2024-11-28 03:14:18,727 INFO L140 encePairwiseOnDemand]: 1140/1145 looper letters, 37 selfloop transitions, 2 changer transitions 3/256 dead transitions. [2024-11-28 03:14:18,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 256 transitions, 770 flow [2024-11-28 03:14:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:18,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4823 transitions. [2024-11-28 03:14:18,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8424454148471616 [2024-11-28 03:14:18,733 INFO L175 Difference]: Start difference. First operand has 339 places, 254 transitions, 682 flow. Second operand 5 states and 4823 transitions. [2024-11-28 03:14:18,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 256 transitions, 770 flow [2024-11-28 03:14:18,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 256 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:18,739 INFO L231 Difference]: Finished difference. Result has 319 places, 253 transitions, 687 flow [2024-11-28 03:14:18,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1145, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=687, PETRI_PLACES=319, PETRI_TRANSITIONS=253} [2024-11-28 03:14:18,740 INFO L279 CegarLoopForPetriNet]: 345 programPoint places, -26 predicate places. [2024-11-28 03:14:18,740 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 253 transitions, 687 flow [2024-11-28 03:14:18,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 963.8) internal successors, (4819), 5 states have internal predecessors, (4819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:18,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:18,741 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:18,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-11-28 03:14:18,742 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-28 03:14:18,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash -623432881, now seen corresponding path program 1 times [2024-11-28 03:14:18,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:18,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790701771] [2024-11-28 03:14:18,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:18,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:18,862 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:19,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:19,112 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-28 03:14:19,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-28 03:14:19,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-28 03:14:19,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-28 03:14:19,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-11-28 03:14:19,114 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:19,115 WARN L246 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:19,115 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2024-11-28 03:14:19,275 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:19,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1181 places, 1182 transitions, 4344 flow [2024-11-28 03:14:19,831 INFO L124 PetriNetUnfolderBase]: 157/2015 cut-off events. [2024-11-28 03:14:19,832 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2024-11-28 03:14:19,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2633 conditions, 2015 events. 157/2015 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5625 event pairs, 0 based on Foata normal form. 0/1761 useless extension candidates. Maximal degree in co-relation 2572. Up to 62 conditions per place. [2024-11-28 03:14:19,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 1181 places, 1182 transitions, 4344 flow [2024-11-28 03:14:19,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 295 transitions, 1583 flow [2024-11-28 03:14:19,865 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:19,865 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:19,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-28 03:14:19,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:19,866 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:19,866 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:19,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:19,866 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:19,866 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-28 03:14:19,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:19,867 INFO L85 PathProgramCache]: Analyzing trace with hash -836540762, now seen corresponding path program 1 times [2024-11-28 03:14:19,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:19,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295732005] [2024-11-28 03:14:19,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:19,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:19,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:19,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295732005] [2024-11-28 03:14:19,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295732005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:19,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:19,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:19,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971124221] [2024-11-28 03:14:19,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:19,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:19,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:19,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:19,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:20,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 959 out of 1182 [2024-11-28 03:14:20,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 295 transitions, 1583 flow. Second operand has 3 states, 3 states have (on average 960.3333333333334) internal successors, (2881), 3 states have internal predecessors, (2881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:20,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:20,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 959 of 1182 [2024-11-28 03:14:20,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:20,561 INFO L124 PetriNetUnfolderBase]: 63/1548 cut-off events. [2024-11-28 03:14:20,561 INFO L125 PetriNetUnfolderBase]: For 5426/5426 co-relation queries the response was YES. [2024-11-28 03:14:20,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2362 conditions, 1548 events. 63/1548 cut-off events. For 5426/5426 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4053 event pairs, 31 based on Foata normal form. 32/1451 useless extension candidates. Maximal degree in co-relation 2239. Up to 223 conditions per place. [2024-11-28 03:14:20,581 INFO L140 encePairwiseOnDemand]: 1176/1182 looper letters, 40 selfloop transitions, 2 changer transitions 1/291 dead transitions. [2024-11-28 03:14:20,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 291 transitions, 1659 flow [2024-11-28 03:14:20,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:20,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2923 transitions. [2024-11-28 03:14:20,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8243090806542583 [2024-11-28 03:14:20,584 INFO L175 Difference]: Start difference. First operand has 354 places, 295 transitions, 1583 flow. Second operand 3 states and 2923 transitions. [2024-11-28 03:14:20,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 291 transitions, 1659 flow [2024-11-28 03:14:20,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 291 transitions, 846 flow, removed 406 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:20,596 INFO L231 Difference]: Finished difference. Result has 354 places, 290 transitions, 764 flow [2024-11-28 03:14:20,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1182, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=354, PETRI_TRANSITIONS=290} [2024-11-28 03:14:20,597 INFO L279 CegarLoopForPetriNet]: 354 programPoint places, 0 predicate places. [2024-11-28 03:14:20,597 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 290 transitions, 764 flow [2024-11-28 03:14:20,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 960.3333333333334) internal successors, (2881), 3 states have internal predecessors, (2881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:20,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:20,599 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:20,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2024-11-28 03:14:20,599 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-28 03:14:20,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:20,599 INFO L85 PathProgramCache]: Analyzing trace with hash -822898418, now seen corresponding path program 1 times [2024-11-28 03:14:20,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:20,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496952476] [2024-11-28 03:14:20,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:20,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:20,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:20,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496952476] [2024-11-28 03:14:20,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496952476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:20,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:20,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:20,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174757416] [2024-11-28 03:14:20,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:20,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:20,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:20,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:20,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:20,768 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 897 out of 1182 [2024-11-28 03:14:20,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 290 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 898.0) internal successors, (2694), 3 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:20,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:20,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 897 of 1182 [2024-11-28 03:14:20,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:21,273 INFO L124 PetriNetUnfolderBase]: 32/1389 cut-off events. [2024-11-28 03:14:21,273 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-11-28 03:14:21,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 1389 events. 32/1389 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3002 event pairs, 0 based on Foata normal form. 31/1357 useless extension candidates. Maximal degree in co-relation 1682. Up to 160 conditions per place. [2024-11-28 03:14:21,282 INFO L140 encePairwiseOnDemand]: 1176/1182 looper letters, 38 selfloop transitions, 1 changer transitions 24/285 dead transitions. [2024-11-28 03:14:21,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 285 transitions, 836 flow [2024-11-28 03:14:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:21,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2737 transitions. [2024-11-28 03:14:21,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7718556119571348 [2024-11-28 03:14:21,285 INFO L175 Difference]: Start difference. First operand has 354 places, 290 transitions, 764 flow. Second operand 3 states and 2737 transitions. [2024-11-28 03:14:21,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 285 transitions, 836 flow [2024-11-28 03:14:21,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 285 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:21,288 INFO L231 Difference]: Finished difference. Result has 348 places, 261 transitions, 702 flow [2024-11-28 03:14:21,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1182, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=348, PETRI_TRANSITIONS=261} [2024-11-28 03:14:21,289 INFO L279 CegarLoopForPetriNet]: 354 programPoint places, -6 predicate places. [2024-11-28 03:14:21,289 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 261 transitions, 702 flow [2024-11-28 03:14:21,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 898.0) internal successors, (2694), 3 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:21,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:21,290 INFO L206 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:21,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2024-11-28 03:14:21,290 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-28 03:14:21,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:21,292 INFO L85 PathProgramCache]: Analyzing trace with hash 362017734, now seen corresponding path program 1 times [2024-11-28 03:14:21,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:21,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897459410] [2024-11-28 03:14:21,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:21,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:21,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:21,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897459410] [2024-11-28 03:14:21,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897459410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:21,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:21,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:21,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906491726] [2024-11-28 03:14:21,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:21,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:21,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:21,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:21,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:21,649 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1182 [2024-11-28 03:14:21,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 261 transitions, 702 flow. Second operand has 5 states, 5 states have (on average 995.0) internal successors, (4975), 5 states have internal predecessors, (4975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:21,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:21,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1182 [2024-11-28 03:14:21,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:21,890 INFO L124 PetriNetUnfolderBase]: 0/658 cut-off events. [2024-11-28 03:14:21,891 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-28 03:14:21,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 658 events. 0/658 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 387 event pairs, 0 based on Foata normal form. 1/658 useless extension candidates. Maximal degree in co-relation 0. Up to 98 conditions per place. [2024-11-28 03:14:21,892 INFO L140 encePairwiseOnDemand]: 1177/1182 looper letters, 38 selfloop transitions, 2 changer transitions 3/263 dead transitions. [2024-11-28 03:14:21,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 263 transitions, 792 flow [2024-11-28 03:14:21,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:21,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4979 transitions. [2024-11-28 03:14:21,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8424703891708968 [2024-11-28 03:14:21,895 INFO L175 Difference]: Start difference. First operand has 348 places, 261 transitions, 702 flow. Second operand 5 states and 4979 transitions. [2024-11-28 03:14:21,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 263 transitions, 792 flow [2024-11-28 03:14:21,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 263 transitions, 791 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:21,899 INFO L231 Difference]: Finished difference. Result has 328 places, 260 transitions, 707 flow [2024-11-28 03:14:21,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1182, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=707, PETRI_PLACES=328, PETRI_TRANSITIONS=260} [2024-11-28 03:14:21,900 INFO L279 CegarLoopForPetriNet]: 354 programPoint places, -26 predicate places. [2024-11-28 03:14:21,900 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 260 transitions, 707 flow [2024-11-28 03:14:21,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 995.0) internal successors, (4975), 5 states have internal predecessors, (4975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:21,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:21,901 INFO L206 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:21,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-11-28 03:14:21,901 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-28 03:14:21,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:21,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1720818488, now seen corresponding path program 1 times [2024-11-28 03:14:21,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:21,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29081702] [2024-11-28 03:14:21,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:21,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:21,958 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:22,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:22,107 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-28 03:14:22,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-28 03:14:22,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-28 03:14:22,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-28 03:14:22,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2024-11-28 03:14:22,110 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:22,111 WARN L246 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:22,111 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2024-11-28 03:14:22,273 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:22,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1218 places, 1219 transitions, 4546 flow [2024-11-28 03:14:22,832 INFO L124 PetriNetUnfolderBase]: 162/2079 cut-off events. [2024-11-28 03:14:22,832 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2024-11-28 03:14:22,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2733 conditions, 2079 events. 162/2079 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5863 event pairs, 0 based on Foata normal form. 0/1817 useless extension candidates. Maximal degree in co-relation 2670. Up to 64 conditions per place. [2024-11-28 03:14:22,862 INFO L82 GeneralOperation]: Start removeDead. Operand has 1218 places, 1219 transitions, 4546 flow [2024-11-28 03:14:22,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 363 places, 302 transitions, 1661 flow [2024-11-28 03:14:22,867 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:22,868 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:22,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-28 03:14:22,869 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:22,869 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:22,869 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:22,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:22,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:22,869 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-28 03:14:22,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash -822638170, now seen corresponding path program 1 times [2024-11-28 03:14:22,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:22,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331202347] [2024-11-28 03:14:22,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:22,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:22,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331202347] [2024-11-28 03:14:22,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331202347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:22,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:22,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:22,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779873604] [2024-11-28 03:14:22,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:22,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:22,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:22,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:22,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:23,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 989 out of 1219 [2024-11-28 03:14:23,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 302 transitions, 1661 flow. Second operand has 3 states, 3 states have (on average 990.3333333333334) internal successors, (2971), 3 states have internal predecessors, (2971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:23,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:23,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 989 of 1219 [2024-11-28 03:14:23,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:23,583 INFO L124 PetriNetUnfolderBase]: 65/1597 cut-off events. [2024-11-28 03:14:23,583 INFO L125 PetriNetUnfolderBase]: For 5953/5953 co-relation queries the response was YES. [2024-11-28 03:14:23,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2453 conditions, 1597 events. 65/1597 cut-off events. For 5953/5953 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4389 event pairs, 32 based on Foata normal form. 33/1497 useless extension candidates. Maximal degree in co-relation 2328. Up to 230 conditions per place. [2024-11-28 03:14:23,605 INFO L140 encePairwiseOnDemand]: 1213/1219 looper letters, 41 selfloop transitions, 2 changer transitions 1/298 dead transitions. [2024-11-28 03:14:23,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 298 transitions, 1739 flow [2024-11-28 03:14:23,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:23,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3014 transitions. [2024-11-28 03:14:23,608 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.824172819250752 [2024-11-28 03:14:23,608 INFO L175 Difference]: Start difference. First operand has 363 places, 302 transitions, 1661 flow. Second operand 3 states and 3014 transitions. [2024-11-28 03:14:23,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 298 transitions, 1739 flow [2024-11-28 03:14:23,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 298 transitions, 868 flow, removed 435 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:23,622 INFO L231 Difference]: Finished difference. Result has 363 places, 297 transitions, 784 flow [2024-11-28 03:14:23,622 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1219, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=363, PETRI_TRANSITIONS=297} [2024-11-28 03:14:23,622 INFO L279 CegarLoopForPetriNet]: 363 programPoint places, 0 predicate places. [2024-11-28 03:14:23,622 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 297 transitions, 784 flow [2024-11-28 03:14:23,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 990.3333333333334) internal successors, (2971), 3 states have internal predecessors, (2971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:23,623 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:23,623 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:23,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2024-11-28 03:14:23,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-28 03:14:23,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:23,624 INFO L85 PathProgramCache]: Analyzing trace with hash 893045966, now seen corresponding path program 1 times [2024-11-28 03:14:23,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:23,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846710407] [2024-11-28 03:14:23,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:23,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:23,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:23,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846710407] [2024-11-28 03:14:23,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846710407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:23,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:23,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:23,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870645470] [2024-11-28 03:14:23,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:23,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:23,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:23,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:23,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:23,767 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 925 out of 1219 [2024-11-28 03:14:23,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 297 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 926.0) internal successors, (2778), 3 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:23,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:23,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 925 of 1219 [2024-11-28 03:14:23,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:24,248 INFO L124 PetriNetUnfolderBase]: 33/1433 cut-off events. [2024-11-28 03:14:24,248 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-11-28 03:14:24,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 1433 events. 33/1433 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3298 event pairs, 0 based on Foata normal form. 32/1400 useless extension candidates. Maximal degree in co-relation 1736. Up to 165 conditions per place. [2024-11-28 03:14:24,265 INFO L140 encePairwiseOnDemand]: 1213/1219 looper letters, 39 selfloop transitions, 1 changer transitions 24/292 dead transitions. [2024-11-28 03:14:24,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 292 transitions, 858 flow [2024-11-28 03:14:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:24,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2822 transitions. [2024-11-28 03:14:24,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7716707683893902 [2024-11-28 03:14:24,268 INFO L175 Difference]: Start difference. First operand has 363 places, 297 transitions, 784 flow. Second operand 3 states and 2822 transitions. [2024-11-28 03:14:24,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 292 transitions, 858 flow [2024-11-28 03:14:24,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 292 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:24,272 INFO L231 Difference]: Finished difference. Result has 357 places, 268 transitions, 722 flow [2024-11-28 03:14:24,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1219, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=357, PETRI_TRANSITIONS=268} [2024-11-28 03:14:24,273 INFO L279 CegarLoopForPetriNet]: 363 programPoint places, -6 predicate places. [2024-11-28 03:14:24,273 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 268 transitions, 722 flow [2024-11-28 03:14:24,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 926.0) internal successors, (2778), 3 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:24,273 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:24,273 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:24,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2024-11-28 03:14:24,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-28 03:14:24,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:24,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1038942549, now seen corresponding path program 1 times [2024-11-28 03:14:24,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:24,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787952651] [2024-11-28 03:14:24,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:24,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:24,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:24,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:24,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787952651] [2024-11-28 03:14:24,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787952651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:24,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:24,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:24,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160625665] [2024-11-28 03:14:24,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:24,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:24,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:24,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:24,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:24,680 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1018 out of 1219 [2024-11-28 03:14:24,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 268 transitions, 722 flow. Second operand has 5 states, 5 states have (on average 1026.2) internal successors, (5131), 5 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:24,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:24,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1018 of 1219 [2024-11-28 03:14:24,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:24,943 INFO L124 PetriNetUnfolderBase]: 0/678 cut-off events. [2024-11-28 03:14:24,943 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-28 03:14:24,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 678 events. 0/678 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 400 event pairs, 0 based on Foata normal form. 1/678 useless extension candidates. Maximal degree in co-relation 0. Up to 101 conditions per place. [2024-11-28 03:14:24,944 INFO L140 encePairwiseOnDemand]: 1214/1219 looper letters, 39 selfloop transitions, 2 changer transitions 3/270 dead transitions. [2024-11-28 03:14:24,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 270 transitions, 814 flow [2024-11-28 03:14:24,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:24,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5135 transitions. [2024-11-28 03:14:24,947 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8424938474159147 [2024-11-28 03:14:24,947 INFO L175 Difference]: Start difference. First operand has 357 places, 268 transitions, 722 flow. Second operand 5 states and 5135 transitions. [2024-11-28 03:14:24,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 270 transitions, 814 flow [2024-11-28 03:14:24,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 270 transitions, 813 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:24,952 INFO L231 Difference]: Finished difference. Result has 337 places, 267 transitions, 727 flow [2024-11-28 03:14:24,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1219, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=727, PETRI_PLACES=337, PETRI_TRANSITIONS=267} [2024-11-28 03:14:24,953 INFO L279 CegarLoopForPetriNet]: 363 programPoint places, -26 predicate places. [2024-11-28 03:14:24,953 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 267 transitions, 727 flow [2024-11-28 03:14:24,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1026.2) internal successors, (5131), 5 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:24,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:24,955 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:24,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2024-11-28 03:14:24,955 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-28 03:14:24,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:24,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2064387562, now seen corresponding path program 1 times [2024-11-28 03:14:24,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:24,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312732128] [2024-11-28 03:14:24,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:24,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:25,033 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:25,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:25,243 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:25,243 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-28 03:14:25,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-28 03:14:25,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-28 03:14:25,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-28 03:14:25,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-28 03:14:25,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-28 03:14:25,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-11-28 03:14:25,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-28 03:14:25,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-28 03:14:25,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-28 03:14:25,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-28 03:14:25,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-28 03:14:25,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-28 03:14:25,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-28 03:14:25,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-28 03:14:25,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-28 03:14:25,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-28 03:14:25,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-28 03:14:25,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-28 03:14:25,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-28 03:14:25,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-28 03:14:25,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-28 03:14:25,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-28 03:14:25,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2024-11-28 03:14:25,248 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:25,248 WARN L246 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:25,248 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2024-11-28 03:14:25,420 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:25,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1255 places, 1256 transitions, 4752 flow [2024-11-28 03:14:26,064 INFO L124 PetriNetUnfolderBase]: 167/2143 cut-off events. [2024-11-28 03:14:26,065 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2024-11-28 03:14:26,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2834 conditions, 2143 events. 167/2143 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6103 event pairs, 0 based on Foata normal form. 0/1873 useless extension candidates. Maximal degree in co-relation 2769. Up to 66 conditions per place. [2024-11-28 03:14:26,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 1255 places, 1256 transitions, 4752 flow [2024-11-28 03:14:26,101 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 372 places, 309 transitions, 1741 flow [2024-11-28 03:14:26,102 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:26,102 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:26,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-28 03:14:26,104 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:26,104 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:26,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:26,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:26,105 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:26,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:14:26,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:26,105 INFO L85 PathProgramCache]: Analyzing trace with hash -857640538, now seen corresponding path program 1 times [2024-11-28 03:14:26,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:26,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383380894] [2024-11-28 03:14:26,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:26,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:26,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:26,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383380894] [2024-11-28 03:14:26,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383380894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:26,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:26,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500896441] [2024-11-28 03:14:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:26,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:26,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:26,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:26,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:26,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1256 [2024-11-28 03:14:26,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 309 transitions, 1741 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:26,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:26,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1256 [2024-11-28 03:14:26,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:26,879 INFO L124 PetriNetUnfolderBase]: 67/1646 cut-off events. [2024-11-28 03:14:26,879 INFO L125 PetriNetUnfolderBase]: For 6513/6513 co-relation queries the response was YES. [2024-11-28 03:14:26,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 1646 events. 67/1646 cut-off events. For 6513/6513 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4303 event pairs, 33 based on Foata normal form. 34/1543 useless extension candidates. Maximal degree in co-relation 2418. Up to 237 conditions per place. [2024-11-28 03:14:26,902 INFO L140 encePairwiseOnDemand]: 1250/1256 looper letters, 42 selfloop transitions, 2 changer transitions 1/305 dead transitions. [2024-11-28 03:14:26,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 305 transitions, 1821 flow [2024-11-28 03:14:26,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:26,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3105 transitions. [2024-11-28 03:14:26,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8240445859872612 [2024-11-28 03:14:26,905 INFO L175 Difference]: Start difference. First operand has 372 places, 309 transitions, 1741 flow. Second operand 3 states and 3105 transitions. [2024-11-28 03:14:26,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 305 transitions, 1821 flow [2024-11-28 03:14:26,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 305 transitions, 890 flow, removed 465 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:26,918 INFO L231 Difference]: Finished difference. Result has 372 places, 304 transitions, 804 flow [2024-11-28 03:14:26,918 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1256, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=372, PETRI_TRANSITIONS=304} [2024-11-28 03:14:26,919 INFO L279 CegarLoopForPetriNet]: 372 programPoint places, 0 predicate places. [2024-11-28 03:14:26,919 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 304 transitions, 804 flow [2024-11-28 03:14:26,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:26,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:26,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:26,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2024-11-28 03:14:26,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:14:26,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash -566317362, now seen corresponding path program 1 times [2024-11-28 03:14:26,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:26,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158357404] [2024-11-28 03:14:26,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:26,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:26,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:26,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158357404] [2024-11-28 03:14:26,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158357404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:26,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:26,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:26,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706491559] [2024-11-28 03:14:26,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:26,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:26,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:26,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:26,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:27,068 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 953 out of 1256 [2024-11-28 03:14:27,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 304 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 954.0) internal successors, (2862), 3 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:27,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:27,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 953 of 1256 [2024-11-28 03:14:27,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:27,582 INFO L124 PetriNetUnfolderBase]: 34/1477 cut-off events. [2024-11-28 03:14:27,583 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-28 03:14:27,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1846 conditions, 1477 events. 34/1477 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3234 event pairs, 0 based on Foata normal form. 33/1443 useless extension candidates. Maximal degree in co-relation 1790. Up to 170 conditions per place. [2024-11-28 03:14:27,600 INFO L140 encePairwiseOnDemand]: 1250/1256 looper letters, 40 selfloop transitions, 1 changer transitions 24/299 dead transitions. [2024-11-28 03:14:27,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 299 transitions, 880 flow [2024-11-28 03:14:27,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2907 transitions. [2024-11-28 03:14:27,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7714968152866242 [2024-11-28 03:14:27,603 INFO L175 Difference]: Start difference. First operand has 372 places, 304 transitions, 804 flow. Second operand 3 states and 2907 transitions. [2024-11-28 03:14:27,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 299 transitions, 880 flow [2024-11-28 03:14:27,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 299 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:27,607 INFO L231 Difference]: Finished difference. Result has 366 places, 275 transitions, 742 flow [2024-11-28 03:14:27,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1256, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=366, PETRI_TRANSITIONS=275} [2024-11-28 03:14:27,608 INFO L279 CegarLoopForPetriNet]: 372 programPoint places, -6 predicate places. [2024-11-28 03:14:27,608 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 275 transitions, 742 flow [2024-11-28 03:14:27,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 954.0) internal successors, (2862), 3 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:27,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:27,609 INFO L206 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:27,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2024-11-28 03:14:27,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:14:27,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:27,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1396331262, now seen corresponding path program 1 times [2024-11-28 03:14:27,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:27,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126402141] [2024-11-28 03:14:27,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:27,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:27,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:27,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126402141] [2024-11-28 03:14:27,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126402141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:27,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:27,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:27,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048260013] [2024-11-28 03:14:27,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:27,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:27,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:27,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:27,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:28,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1256 [2024-11-28 03:14:28,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 275 transitions, 742 flow. Second operand has 5 states, 5 states have (on average 1057.4) internal successors, (5287), 5 states have internal predecessors, (5287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:28,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:28,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1256 [2024-11-28 03:14:28,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:28,371 INFO L124 PetriNetUnfolderBase]: 0/698 cut-off events. [2024-11-28 03:14:28,371 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-11-28 03:14:28,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 698 events. 0/698 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 412 event pairs, 0 based on Foata normal form. 1/698 useless extension candidates. Maximal degree in co-relation 0. Up to 104 conditions per place. [2024-11-28 03:14:28,373 INFO L140 encePairwiseOnDemand]: 1251/1256 looper letters, 40 selfloop transitions, 2 changer transitions 3/277 dead transitions. [2024-11-28 03:14:28,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 277 transitions, 836 flow [2024-11-28 03:14:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:28,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:28,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5291 transitions. [2024-11-28 03:14:28,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.842515923566879 [2024-11-28 03:14:28,376 INFO L175 Difference]: Start difference. First operand has 366 places, 275 transitions, 742 flow. Second operand 5 states and 5291 transitions. [2024-11-28 03:14:28,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 277 transitions, 836 flow [2024-11-28 03:14:28,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 277 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:28,383 INFO L231 Difference]: Finished difference. Result has 346 places, 274 transitions, 747 flow [2024-11-28 03:14:28,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1256, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=747, PETRI_PLACES=346, PETRI_TRANSITIONS=274} [2024-11-28 03:14:28,383 INFO L279 CegarLoopForPetriNet]: 372 programPoint places, -26 predicate places. [2024-11-28 03:14:28,383 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 274 transitions, 747 flow [2024-11-28 03:14:28,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1057.4) internal successors, (5287), 5 states have internal predecessors, (5287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:28,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:28,385 INFO L206 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:28,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2024-11-28 03:14:28,385 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-28 03:14:28,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:28,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1661729515, now seen corresponding path program 1 times [2024-11-28 03:14:28,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:28,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067368751] [2024-11-28 03:14:28,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:28,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:28,456 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:28,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:28,618 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-28 03:14:28,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-28 03:14:28,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-28 03:14:28,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-28 03:14:28,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-28 03:14:28,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-28 03:14:28,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2024-11-28 03:14:28,622 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:28,622 WARN L246 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:28,623 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2024-11-28 03:14:28,791 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:28,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1292 places, 1293 transitions, 4962 flow [2024-11-28 03:14:29,406 INFO L124 PetriNetUnfolderBase]: 172/2207 cut-off events. [2024-11-28 03:14:29,407 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2024-11-28 03:14:29,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2936 conditions, 2207 events. 172/2207 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6246 event pairs, 0 based on Foata normal form. 0/1929 useless extension candidates. Maximal degree in co-relation 2869. Up to 68 conditions per place. [2024-11-28 03:14:29,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 1292 places, 1293 transitions, 4962 flow [2024-11-28 03:14:29,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 381 places, 316 transitions, 1823 flow [2024-11-28 03:14:29,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:29,448 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:29,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-28 03:14:29,449 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:29,449 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:29,450 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:29,450 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:29,450 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:29,450 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-28 03:14:29,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:29,451 INFO L85 PathProgramCache]: Analyzing trace with hash -941547866, now seen corresponding path program 1 times [2024-11-28 03:14:29,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:29,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567634175] [2024-11-28 03:14:29,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:29,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:29,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:29,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567634175] [2024-11-28 03:14:29,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567634175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:29,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:29,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:29,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193074454] [2024-11-28 03:14:29,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:29,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:29,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:29,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:29,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:29,716 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1293 [2024-11-28 03:14:29,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 316 transitions, 1823 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:29,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:29,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1293 [2024-11-28 03:14:29,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:30,364 INFO L124 PetriNetUnfolderBase]: 69/1695 cut-off events. [2024-11-28 03:14:30,364 INFO L125 PetriNetUnfolderBase]: For 7107/7107 co-relation queries the response was YES. [2024-11-28 03:14:30,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2638 conditions, 1695 events. 69/1695 cut-off events. For 7107/7107 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4605 event pairs, 34 based on Foata normal form. 69/1623 useless extension candidates. Maximal degree in co-relation 2509. Up to 244 conditions per place. [2024-11-28 03:14:30,389 INFO L140 encePairwiseOnDemand]: 1287/1293 looper letters, 43 selfloop transitions, 2 changer transitions 1/312 dead transitions. [2024-11-28 03:14:30,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 312 transitions, 1905 flow [2024-11-28 03:14:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:30,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3196 transitions. [2024-11-28 03:14:30,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8239236916731116 [2024-11-28 03:14:30,392 INFO L175 Difference]: Start difference. First operand has 381 places, 316 transitions, 1823 flow. Second operand 3 states and 3196 transitions. [2024-11-28 03:14:30,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 312 transitions, 1905 flow [2024-11-28 03:14:30,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 312 transitions, 912 flow, removed 496 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:30,408 INFO L231 Difference]: Finished difference. Result has 381 places, 311 transitions, 824 flow [2024-11-28 03:14:30,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1293, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=824, PETRI_PLACES=381, PETRI_TRANSITIONS=311} [2024-11-28 03:14:30,408 INFO L279 CegarLoopForPetriNet]: 381 programPoint places, 0 predicate places. [2024-11-28 03:14:30,409 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 311 transitions, 824 flow [2024-11-28 03:14:30,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:30,409 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:30,409 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:30,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2024-11-28 03:14:30,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-28 03:14:30,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:30,410 INFO L85 PathProgramCache]: Analyzing trace with hash -906021106, now seen corresponding path program 1 times [2024-11-28 03:14:30,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:30,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742921271] [2024-11-28 03:14:30,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:30,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:30,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:30,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742921271] [2024-11-28 03:14:30,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742921271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:30,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:30,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:30,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986309376] [2024-11-28 03:14:30,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:30,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:30,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:30,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:30,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:30,561 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 981 out of 1293 [2024-11-28 03:14:30,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 311 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:30,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:30,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 981 of 1293 [2024-11-28 03:14:30,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:31,107 INFO L124 PetriNetUnfolderBase]: 35/1521 cut-off events. [2024-11-28 03:14:31,107 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-28 03:14:31,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 1521 events. 35/1521 cut-off events. For 626/626 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3401 event pairs, 0 based on Foata normal form. 34/1486 useless extension candidates. Maximal degree in co-relation 1844. Up to 175 conditions per place. [2024-11-28 03:14:31,126 INFO L140 encePairwiseOnDemand]: 1287/1293 looper letters, 41 selfloop transitions, 1 changer transitions 24/306 dead transitions. [2024-11-28 03:14:31,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 306 transitions, 902 flow [2024-11-28 03:14:31,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:31,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:31,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2992 transitions. [2024-11-28 03:14:31,128 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7713328177365301 [2024-11-28 03:14:31,129 INFO L175 Difference]: Start difference. First operand has 381 places, 311 transitions, 824 flow. Second operand 3 states and 2992 transitions. [2024-11-28 03:14:31,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 306 transitions, 902 flow [2024-11-28 03:14:31,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 306 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:31,133 INFO L231 Difference]: Finished difference. Result has 375 places, 282 transitions, 762 flow [2024-11-28 03:14:31,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1293, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=375, PETRI_TRANSITIONS=282} [2024-11-28 03:14:31,134 INFO L279 CegarLoopForPetriNet]: 381 programPoint places, -6 predicate places. [2024-11-28 03:14:31,134 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 282 transitions, 762 flow [2024-11-28 03:14:31,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:31,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:31,134 INFO L206 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:31,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2024-11-28 03:14:31,135 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-28 03:14:31,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1037721823, now seen corresponding path program 1 times [2024-11-28 03:14:31,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:31,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870939871] [2024-11-28 03:14:31,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:31,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:31,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:31,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870939871] [2024-11-28 03:14:31,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870939871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:31,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:31,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:31,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448499092] [2024-11-28 03:14:31,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:31,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:31,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:31,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:31,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:31,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1080 out of 1293 [2024-11-28 03:14:31,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 282 transitions, 762 flow. Second operand has 5 states, 5 states have (on average 1088.6) internal successors, (5443), 5 states have internal predecessors, (5443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:31,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:31,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1080 of 1293 [2024-11-28 03:14:31,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:32,022 INFO L124 PetriNetUnfolderBase]: 0/718 cut-off events. [2024-11-28 03:14:32,022 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2024-11-28 03:14:32,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 718 events. 0/718 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 423 event pairs, 0 based on Foata normal form. 1/718 useless extension candidates. Maximal degree in co-relation 0. Up to 107 conditions per place. [2024-11-28 03:14:32,023 INFO L140 encePairwiseOnDemand]: 1288/1293 looper letters, 41 selfloop transitions, 2 changer transitions 3/284 dead transitions. [2024-11-28 03:14:32,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 284 transitions, 858 flow [2024-11-28 03:14:32,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:32,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:32,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5447 transitions. [2024-11-28 03:14:32,026 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8425367362722351 [2024-11-28 03:14:32,026 INFO L175 Difference]: Start difference. First operand has 375 places, 282 transitions, 762 flow. Second operand 5 states and 5447 transitions. [2024-11-28 03:14:32,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 284 transitions, 858 flow [2024-11-28 03:14:32,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 284 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:32,030 INFO L231 Difference]: Finished difference. Result has 355 places, 281 transitions, 767 flow [2024-11-28 03:14:32,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1293, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=767, PETRI_PLACES=355, PETRI_TRANSITIONS=281} [2024-11-28 03:14:32,031 INFO L279 CegarLoopForPetriNet]: 381 programPoint places, -26 predicate places. [2024-11-28 03:14:32,031 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 281 transitions, 767 flow [2024-11-28 03:14:32,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1088.6) internal successors, (5443), 5 states have internal predecessors, (5443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:32,033 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:32,033 INFO L206 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:32,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2024-11-28 03:14:32,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-28 03:14:32,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:32,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1673218217, now seen corresponding path program 1 times [2024-11-28 03:14:32,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:32,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577100085] [2024-11-28 03:14:32,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:32,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:32,109 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:32,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:32,282 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:32,282 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-28 03:14:32,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-28 03:14:32,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-28 03:14:32,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-28 03:14:32,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-28 03:14:32,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-28 03:14:32,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-28 03:14:32,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-28 03:14:32,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-28 03:14:32,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-28 03:14:32,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-28 03:14:32,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-28 03:14:32,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-28 03:14:32,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-28 03:14:32,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-28 03:14:32,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-28 03:14:32,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-28 03:14:32,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-28 03:14:32,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2024-11-28 03:14:32,287 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:32,287 WARN L246 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:32,287 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2024-11-28 03:14:32,460 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:32,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1329 places, 1330 transitions, 5176 flow [2024-11-28 03:14:33,138 INFO L124 PetriNetUnfolderBase]: 177/2271 cut-off events. [2024-11-28 03:14:33,138 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2024-11-28 03:14:33,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3039 conditions, 2271 events. 177/2271 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6476 event pairs, 0 based on Foata normal form. 0/1985 useless extension candidates. Maximal degree in co-relation 2970. Up to 70 conditions per place. [2024-11-28 03:14:33,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 1329 places, 1330 transitions, 5176 flow [2024-11-28 03:14:33,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 323 transitions, 1907 flow [2024-11-28 03:14:33,180 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:33,181 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:33,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-28 03:14:33,182 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:33,182 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:33,182 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:33,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:33,182 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:33,182 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-28 03:14:33,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:33,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1074360154, now seen corresponding path program 1 times [2024-11-28 03:14:33,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:33,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162894113] [2024-11-28 03:14:33,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:33,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:33,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:33,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162894113] [2024-11-28 03:14:33,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162894113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:33,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:33,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:33,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177295979] [2024-11-28 03:14:33,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:33,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:33,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:33,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:33,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:33,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1079 out of 1330 [2024-11-28 03:14:33,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 323 transitions, 1907 flow. Second operand has 3 states, 3 states have (on average 1080.3333333333333) internal successors, (3241), 3 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:33,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:33,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1079 of 1330 [2024-11-28 03:14:33,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:34,050 INFO L124 PetriNetUnfolderBase]: 71/1744 cut-off events. [2024-11-28 03:14:34,050 INFO L125 PetriNetUnfolderBase]: For 7736/7736 co-relation queries the response was YES. [2024-11-28 03:14:34,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 1744 events. 71/1744 cut-off events. For 7736/7736 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4603 event pairs, 35 based on Foata normal form. 36/1635 useless extension candidates. Maximal degree in co-relation 2601. Up to 251 conditions per place. [2024-11-28 03:14:34,077 INFO L140 encePairwiseOnDemand]: 1324/1330 looper letters, 44 selfloop transitions, 2 changer transitions 1/319 dead transitions. [2024-11-28 03:14:34,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 319 transitions, 1991 flow [2024-11-28 03:14:34,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:34,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3287 transitions. [2024-11-28 03:14:34,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8238095238095238 [2024-11-28 03:14:34,080 INFO L175 Difference]: Start difference. First operand has 390 places, 323 transitions, 1907 flow. Second operand 3 states and 3287 transitions. [2024-11-28 03:14:34,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 319 transitions, 1991 flow [2024-11-28 03:14:34,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 319 transitions, 934 flow, removed 528 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:34,103 INFO L231 Difference]: Finished difference. Result has 390 places, 318 transitions, 844 flow [2024-11-28 03:14:34,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1330, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=390, PETRI_TRANSITIONS=318} [2024-11-28 03:14:34,104 INFO L279 CegarLoopForPetriNet]: 390 programPoint places, 0 predicate places. [2024-11-28 03:14:34,104 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 318 transitions, 844 flow [2024-11-28 03:14:34,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1080.3333333333333) internal successors, (3241), 3 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:34,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:34,106 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:34,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2024-11-28 03:14:34,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-28 03:14:34,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:34,107 INFO L85 PathProgramCache]: Analyzing trace with hash -126065266, now seen corresponding path program 1 times [2024-11-28 03:14:34,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:34,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887815470] [2024-11-28 03:14:34,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:34,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:34,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:34,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887815470] [2024-11-28 03:14:34,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887815470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:34,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:34,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:34,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411834622] [2024-11-28 03:14:34,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:34,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:34,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:34,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:34,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:34,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1009 out of 1330 [2024-11-28 03:14:34,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 318 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 1010.0) internal successors, (3030), 3 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:34,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:34,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1009 of 1330 [2024-11-28 03:14:34,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:34,911 INFO L124 PetriNetUnfolderBase]: 36/1565 cut-off events. [2024-11-28 03:14:34,912 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-28 03:14:34,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 1565 events. 36/1565 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3433 event pairs, 0 based on Foata normal form. 35/1529 useless extension candidates. Maximal degree in co-relation 1898. Up to 180 conditions per place. [2024-11-28 03:14:34,932 INFO L140 encePairwiseOnDemand]: 1324/1330 looper letters, 42 selfloop transitions, 1 changer transitions 24/313 dead transitions. [2024-11-28 03:14:34,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 313 transitions, 924 flow [2024-11-28 03:14:34,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:34,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:34,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3077 transitions. [2024-11-28 03:14:34,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7711779448621554 [2024-11-28 03:14:34,935 INFO L175 Difference]: Start difference. First operand has 390 places, 318 transitions, 844 flow. Second operand 3 states and 3077 transitions. [2024-11-28 03:14:34,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 313 transitions, 924 flow [2024-11-28 03:14:34,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 313 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:34,941 INFO L231 Difference]: Finished difference. Result has 384 places, 289 transitions, 782 flow [2024-11-28 03:14:34,941 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1330, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=782, PETRI_PLACES=384, PETRI_TRANSITIONS=289} [2024-11-28 03:14:34,941 INFO L279 CegarLoopForPetriNet]: 390 programPoint places, -6 predicate places. [2024-11-28 03:14:34,941 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 289 transitions, 782 flow [2024-11-28 03:14:34,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1010.0) internal successors, (3030), 3 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:34,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:34,942 INFO L206 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:34,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2024-11-28 03:14:34,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-28 03:14:34,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:34,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1923573650, now seen corresponding path program 1 times [2024-11-28 03:14:34,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:34,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067485674] [2024-11-28 03:14:34,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:34,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:35,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:35,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067485674] [2024-11-28 03:14:35,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067485674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:35,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:35,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:35,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889603985] [2024-11-28 03:14:35,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:35,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:35,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:35,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:35,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:35,524 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1111 out of 1330 [2024-11-28 03:14:35,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 289 transitions, 782 flow. Second operand has 5 states, 5 states have (on average 1119.8) internal successors, (5599), 5 states have internal predecessors, (5599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:35,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:35,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1111 of 1330 [2024-11-28 03:14:35,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:35,897 INFO L124 PetriNetUnfolderBase]: 0/738 cut-off events. [2024-11-28 03:14:35,897 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2024-11-28 03:14:35,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 738 events. 0/738 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 435 event pairs, 0 based on Foata normal form. 1/738 useless extension candidates. Maximal degree in co-relation 0. Up to 110 conditions per place. [2024-11-28 03:14:35,898 INFO L140 encePairwiseOnDemand]: 1325/1330 looper letters, 42 selfloop transitions, 2 changer transitions 3/291 dead transitions. [2024-11-28 03:14:35,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 291 transitions, 880 flow [2024-11-28 03:14:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:35,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:35,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5603 transitions. [2024-11-28 03:14:35,902 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8425563909774436 [2024-11-28 03:14:35,902 INFO L175 Difference]: Start difference. First operand has 384 places, 289 transitions, 782 flow. Second operand 5 states and 5603 transitions. [2024-11-28 03:14:35,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 291 transitions, 880 flow [2024-11-28 03:14:35,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 291 transitions, 879 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:35,907 INFO L231 Difference]: Finished difference. Result has 364 places, 288 transitions, 787 flow [2024-11-28 03:14:35,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1330, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=787, PETRI_PLACES=364, PETRI_TRANSITIONS=288} [2024-11-28 03:14:35,907 INFO L279 CegarLoopForPetriNet]: 390 programPoint places, -26 predicate places. [2024-11-28 03:14:35,908 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 288 transitions, 787 flow [2024-11-28 03:14:35,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1119.8) internal successors, (5599), 5 states have internal predecessors, (5599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:35,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:35,909 INFO L206 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:35,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-11-28 03:14:35,909 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-28 03:14:35,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:35,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2105014022, now seen corresponding path program 1 times [2024-11-28 03:14:35,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:35,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282117494] [2024-11-28 03:14:35,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:35,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:35,982 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:36,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:36,206 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:36,206 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-11-28 03:14:36,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2024-11-28 03:14:36,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2024-11-28 03:14:36,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2024-11-28 03:14:36,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2024-11-28 03:14:36,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2024-11-28 03:14:36,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2024-11-28 03:14:36,209 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:36,210 WARN L246 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:36,210 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2024-11-28 03:14:36,390 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:36,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1366 places, 1367 transitions, 5394 flow [2024-11-28 03:14:37,089 INFO L124 PetriNetUnfolderBase]: 182/2335 cut-off events. [2024-11-28 03:14:37,089 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2024-11-28 03:14:37,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3143 conditions, 2335 events. 182/2335 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6742 event pairs, 0 based on Foata normal form. 0/2041 useless extension candidates. Maximal degree in co-relation 3072. Up to 72 conditions per place. [2024-11-28 03:14:37,129 INFO L82 GeneralOperation]: Start removeDead. Operand has 1366 places, 1367 transitions, 5394 flow [2024-11-28 03:14:37,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 330 transitions, 1993 flow [2024-11-28 03:14:37,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:37,136 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:37,136 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-28 03:14:37,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:37,139 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:37,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:37,139 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:37,139 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:37,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-28 03:14:37,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:37,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1256077402, now seen corresponding path program 1 times [2024-11-28 03:14:37,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:37,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099871062] [2024-11-28 03:14:37,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:37,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:37,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:37,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099871062] [2024-11-28 03:14:37,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099871062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:37,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:37,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:37,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640183398] [2024-11-28 03:14:37,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:37,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:37,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:37,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:37,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:37,372 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1109 out of 1367 [2024-11-28 03:14:37,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 330 transitions, 1993 flow. Second operand has 3 states, 3 states have (on average 1110.3333333333333) internal successors, (3331), 3 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:37,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:37,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1109 of 1367 [2024-11-28 03:14:37,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:38,064 INFO L124 PetriNetUnfolderBase]: 73/1793 cut-off events. [2024-11-28 03:14:38,064 INFO L125 PetriNetUnfolderBase]: For 8401/8401 co-relation queries the response was YES. [2024-11-28 03:14:38,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2827 conditions, 1793 events. 73/1793 cut-off events. For 8401/8401 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4708 event pairs, 36 based on Foata normal form. 37/1681 useless extension candidates. Maximal degree in co-relation 2694. Up to 258 conditions per place. [2024-11-28 03:14:38,092 INFO L140 encePairwiseOnDemand]: 1361/1367 looper letters, 45 selfloop transitions, 2 changer transitions 1/326 dead transitions. [2024-11-28 03:14:38,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 326 transitions, 2079 flow [2024-11-28 03:14:38,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3378 transitions. [2024-11-28 03:14:38,095 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8237015362106803 [2024-11-28 03:14:38,095 INFO L175 Difference]: Start difference. First operand has 399 places, 330 transitions, 1993 flow. Second operand 3 states and 3378 transitions. [2024-11-28 03:14:38,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 326 transitions, 2079 flow [2024-11-28 03:14:38,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 326 transitions, 956 flow, removed 561 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:38,115 INFO L231 Difference]: Finished difference. Result has 399 places, 325 transitions, 864 flow [2024-11-28 03:14:38,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1367, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=399, PETRI_TRANSITIONS=325} [2024-11-28 03:14:38,116 INFO L279 CegarLoopForPetriNet]: 399 programPoint places, 0 predicate places. [2024-11-28 03:14:38,116 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 325 transitions, 864 flow [2024-11-28 03:14:38,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1110.3333333333333) internal successors, (3331), 3 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:38,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:38,117 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:38,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2024-11-28 03:14:38,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-28 03:14:38,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:38,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1773550158, now seen corresponding path program 1 times [2024-11-28 03:14:38,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:38,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782570607] [2024-11-28 03:14:38,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:38,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:38,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:38,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782570607] [2024-11-28 03:14:38,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782570607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:38,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:38,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:38,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291852471] [2024-11-28 03:14:38,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:38,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:38,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:38,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:38,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:38,283 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 1367 [2024-11-28 03:14:38,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 325 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 1038.0) internal successors, (3114), 3 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:38,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:38,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 1367 [2024-11-28 03:14:38,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:39,077 INFO L124 PetriNetUnfolderBase]: 37/1609 cut-off events. [2024-11-28 03:14:39,077 INFO L125 PetriNetUnfolderBase]: For 699/699 co-relation queries the response was YES. [2024-11-28 03:14:39,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2011 conditions, 1609 events. 37/1609 cut-off events. For 699/699 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3534 event pairs, 0 based on Foata normal form. 36/1572 useless extension candidates. Maximal degree in co-relation 1952. Up to 185 conditions per place. [2024-11-28 03:14:39,093 INFO L140 encePairwiseOnDemand]: 1361/1367 looper letters, 43 selfloop transitions, 1 changer transitions 24/320 dead transitions. [2024-11-28 03:14:39,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 320 transitions, 946 flow [2024-11-28 03:14:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:39,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3162 transitions. [2024-11-28 03:14:39,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7710314557425019 [2024-11-28 03:14:39,098 INFO L175 Difference]: Start difference. First operand has 399 places, 325 transitions, 864 flow. Second operand 3 states and 3162 transitions. [2024-11-28 03:14:39,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 320 transitions, 946 flow [2024-11-28 03:14:39,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 320 transitions, 942 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:39,104 INFO L231 Difference]: Finished difference. Result has 393 places, 296 transitions, 802 flow [2024-11-28 03:14:39,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1367, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=802, PETRI_PLACES=393, PETRI_TRANSITIONS=296} [2024-11-28 03:14:39,104 INFO L279 CegarLoopForPetriNet]: 399 programPoint places, -6 predicate places. [2024-11-28 03:14:39,104 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 296 transitions, 802 flow [2024-11-28 03:14:39,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1038.0) internal successors, (3114), 3 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:39,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:39,105 INFO L206 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:39,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2024-11-28 03:14:39,105 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-28 03:14:39,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:39,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1541892555, now seen corresponding path program 1 times [2024-11-28 03:14:39,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:39,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632090975] [2024-11-28 03:14:39,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:39,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:39,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:39,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632090975] [2024-11-28 03:14:39,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632090975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:39,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:39,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:39,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583118711] [2024-11-28 03:14:39,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:39,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:39,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:39,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:39,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:39,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1142 out of 1367 [2024-11-28 03:14:39,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 296 transitions, 802 flow. Second operand has 5 states, 5 states have (on average 1151.0) internal successors, (5755), 5 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:39,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:39,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1142 of 1367 [2024-11-28 03:14:39,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:40,270 INFO L124 PetriNetUnfolderBase]: 0/758 cut-off events. [2024-11-28 03:14:40,270 INFO L125 PetriNetUnfolderBase]: For 698/698 co-relation queries the response was YES. [2024-11-28 03:14:40,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 758 events. 0/758 cut-off events. For 698/698 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 448 event pairs, 0 based on Foata normal form. 1/758 useless extension candidates. Maximal degree in co-relation 0. Up to 113 conditions per place. [2024-11-28 03:14:40,271 INFO L140 encePairwiseOnDemand]: 1362/1367 looper letters, 43 selfloop transitions, 2 changer transitions 3/298 dead transitions. [2024-11-28 03:14:40,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 298 transitions, 902 flow [2024-11-28 03:14:40,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5759 transitions. [2024-11-28 03:14:40,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8425749817117776 [2024-11-28 03:14:40,278 INFO L175 Difference]: Start difference. First operand has 393 places, 296 transitions, 802 flow. Second operand 5 states and 5759 transitions. [2024-11-28 03:14:40,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 298 transitions, 902 flow [2024-11-28 03:14:40,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 298 transitions, 901 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:40,285 INFO L231 Difference]: Finished difference. Result has 373 places, 295 transitions, 807 flow [2024-11-28 03:14:40,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1367, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=807, PETRI_PLACES=373, PETRI_TRANSITIONS=295} [2024-11-28 03:14:40,285 INFO L279 CegarLoopForPetriNet]: 399 programPoint places, -26 predicate places. [2024-11-28 03:14:40,285 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 295 transitions, 807 flow [2024-11-28 03:14:40,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1151.0) internal successors, (5755), 5 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:40,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:40,286 INFO L206 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:40,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2024-11-28 03:14:40,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-28 03:14:40,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:40,291 INFO L85 PathProgramCache]: Analyzing trace with hash -546222452, now seen corresponding path program 1 times [2024-11-28 03:14:40,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:40,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820680743] [2024-11-28 03:14:40,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:40,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:40,410 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:40,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:40,729 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2024-11-28 03:14:40,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2024-11-28 03:14:40,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2024-11-28 03:14:40,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2024-11-28 03:14:40,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2024-11-28 03:14:40,732 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:40,732 WARN L246 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:40,732 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2024-11-28 03:14:40,950 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:40,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1404 transitions, 5616 flow [2024-11-28 03:14:42,036 INFO L124 PetriNetUnfolderBase]: 187/2399 cut-off events. [2024-11-28 03:14:42,036 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2024-11-28 03:14:42,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3248 conditions, 2399 events. 187/2399 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6694 event pairs, 0 based on Foata normal form. 0/2097 useless extension candidates. Maximal degree in co-relation 3175. Up to 74 conditions per place. [2024-11-28 03:14:42,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1404 transitions, 5616 flow [2024-11-28 03:14:42,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 408 places, 337 transitions, 2081 flow [2024-11-28 03:14:42,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:42,087 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:42,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-28 03:14:42,089 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:42,089 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:42,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:42,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:42,089 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:42,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-28 03:14:42,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1486699610, now seen corresponding path program 1 times [2024-11-28 03:14:42,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:42,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155618403] [2024-11-28 03:14:42,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:42,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:42,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:42,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155618403] [2024-11-28 03:14:42,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155618403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:42,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:42,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:42,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566714472] [2024-11-28 03:14:42,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:42,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:42,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:42,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:42,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:42,370 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1139 out of 1404 [2024-11-28 03:14:42,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 337 transitions, 2081 flow. Second operand has 3 states, 3 states have (on average 1140.3333333333333) internal successors, (3421), 3 states have internal predecessors, (3421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:42,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:42,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1139 of 1404 [2024-11-28 03:14:42,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:43,330 INFO L124 PetriNetUnfolderBase]: 75/1842 cut-off events. [2024-11-28 03:14:43,331 INFO L125 PetriNetUnfolderBase]: For 9103/9103 co-relation queries the response was YES. [2024-11-28 03:14:43,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2923 conditions, 1842 events. 75/1842 cut-off events. For 9103/9103 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4869 event pairs, 37 based on Foata normal form. 38/1727 useless extension candidates. Maximal degree in co-relation 2788. Up to 265 conditions per place. [2024-11-28 03:14:43,363 INFO L140 encePairwiseOnDemand]: 1398/1404 looper letters, 46 selfloop transitions, 2 changer transitions 1/333 dead transitions. [2024-11-28 03:14:43,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 333 transitions, 2169 flow [2024-11-28 03:14:43,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:43,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:43,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3469 transitions. [2024-11-28 03:14:43,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8235992402659069 [2024-11-28 03:14:43,368 INFO L175 Difference]: Start difference. First operand has 408 places, 337 transitions, 2081 flow. Second operand 3 states and 3469 transitions. [2024-11-28 03:14:43,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 333 transitions, 2169 flow [2024-11-28 03:14:43,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 333 transitions, 978 flow, removed 595 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:43,395 INFO L231 Difference]: Finished difference. Result has 408 places, 332 transitions, 884 flow [2024-11-28 03:14:43,395 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1404, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=408, PETRI_TRANSITIONS=332} [2024-11-28 03:14:43,396 INFO L279 CegarLoopForPetriNet]: 408 programPoint places, 0 predicate places. [2024-11-28 03:14:43,396 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 332 transitions, 884 flow [2024-11-28 03:14:43,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1140.3333333333333) internal successors, (3421), 3 states have internal predecessors, (3421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:43,397 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:43,397 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:43,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2024-11-28 03:14:43,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-28 03:14:43,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:43,398 INFO L85 PathProgramCache]: Analyzing trace with hash 497857870, now seen corresponding path program 1 times [2024-11-28 03:14:43,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:43,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389864269] [2024-11-28 03:14:43,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:43,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:43,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:43,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389864269] [2024-11-28 03:14:43,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389864269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:43,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:43,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:43,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516700867] [2024-11-28 03:14:43,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:43,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:43,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:43,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:43,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:43,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1065 out of 1404 [2024-11-28 03:14:43,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 332 transitions, 884 flow. Second operand has 3 states, 3 states have (on average 1066.0) internal successors, (3198), 3 states have internal predecessors, (3198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:43,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:43,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1065 of 1404 [2024-11-28 03:14:43,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:44,319 INFO L124 PetriNetUnfolderBase]: 38/1653 cut-off events. [2024-11-28 03:14:44,319 INFO L125 PetriNetUnfolderBase]: For 737/737 co-relation queries the response was YES. [2024-11-28 03:14:44,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2066 conditions, 1653 events. 38/1653 cut-off events. For 737/737 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3633 event pairs, 0 based on Foata normal form. 37/1615 useless extension candidates. Maximal degree in co-relation 2006. Up to 190 conditions per place. [2024-11-28 03:14:44,341 INFO L140 encePairwiseOnDemand]: 1398/1404 looper letters, 44 selfloop transitions, 1 changer transitions 24/327 dead transitions. [2024-11-28 03:14:44,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 327 transitions, 968 flow [2024-11-28 03:14:44,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:44,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:44,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3247 transitions. [2024-11-28 03:14:44,345 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7708926875593543 [2024-11-28 03:14:44,345 INFO L175 Difference]: Start difference. First operand has 408 places, 332 transitions, 884 flow. Second operand 3 states and 3247 transitions. [2024-11-28 03:14:44,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 327 transitions, 968 flow [2024-11-28 03:14:44,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 327 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:44,349 INFO L231 Difference]: Finished difference. Result has 402 places, 303 transitions, 822 flow [2024-11-28 03:14:44,350 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1404, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=822, PETRI_PLACES=402, PETRI_TRANSITIONS=303} [2024-11-28 03:14:44,350 INFO L279 CegarLoopForPetriNet]: 408 programPoint places, -6 predicate places. [2024-11-28 03:14:44,350 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 303 transitions, 822 flow [2024-11-28 03:14:44,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1066.0) internal successors, (3198), 3 states have internal predecessors, (3198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:44,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:44,351 INFO L206 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:44,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2024-11-28 03:14:44,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-28 03:14:44,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:44,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1321319146, now seen corresponding path program 1 times [2024-11-28 03:14:44,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:44,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053023159] [2024-11-28 03:14:44,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:44,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:44,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:44,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053023159] [2024-11-28 03:14:44,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053023159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:44,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:44,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:44,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089927187] [2024-11-28 03:14:44,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:44,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:44,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:44,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:44,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:44,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1173 out of 1404 [2024-11-28 03:14:44,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 303 transitions, 822 flow. Second operand has 5 states, 5 states have (on average 1182.2) internal successors, (5911), 5 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:44,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:44,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1173 of 1404 [2024-11-28 03:14:44,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:45,110 INFO L124 PetriNetUnfolderBase]: 0/778 cut-off events. [2024-11-28 03:14:45,110 INFO L125 PetriNetUnfolderBase]: For 736/736 co-relation queries the response was YES. [2024-11-28 03:14:45,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 778 events. 0/778 cut-off events. For 736/736 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 459 event pairs, 0 based on Foata normal form. 1/778 useless extension candidates. Maximal degree in co-relation 0. Up to 116 conditions per place. [2024-11-28 03:14:45,112 INFO L140 encePairwiseOnDemand]: 1399/1404 looper letters, 44 selfloop transitions, 2 changer transitions 3/305 dead transitions. [2024-11-28 03:14:45,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 305 transitions, 924 flow [2024-11-28 03:14:45,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:45,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:45,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5915 transitions. [2024-11-28 03:14:45,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8425925925925926 [2024-11-28 03:14:45,116 INFO L175 Difference]: Start difference. First operand has 402 places, 303 transitions, 822 flow. Second operand 5 states and 5915 transitions. [2024-11-28 03:14:45,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 305 transitions, 924 flow [2024-11-28 03:14:45,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 305 transitions, 923 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:45,120 INFO L231 Difference]: Finished difference. Result has 382 places, 302 transitions, 827 flow [2024-11-28 03:14:45,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1404, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=827, PETRI_PLACES=382, PETRI_TRANSITIONS=302} [2024-11-28 03:14:45,120 INFO L279 CegarLoopForPetriNet]: 408 programPoint places, -26 predicate places. [2024-11-28 03:14:45,120 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 302 transitions, 827 flow [2024-11-28 03:14:45,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1182.2) internal successors, (5911), 5 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:45,121 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:45,122 INFO L206 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:45,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2024-11-28 03:14:45,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-28 03:14:45,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:45,125 INFO L85 PathProgramCache]: Analyzing trace with hash -548426341, now seen corresponding path program 1 times [2024-11-28 03:14:45,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:45,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029734187] [2024-11-28 03:14:45,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:45,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:45,215 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:45,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:45,544 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-28 03:14:45,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-28 03:14:45,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-28 03:14:45,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-28 03:14:45,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2024-11-28 03:14:45,546 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:45,547 WARN L246 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:45,547 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2024-11-28 03:14:45,717 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:45,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1440 places, 1441 transitions, 5842 flow [2024-11-28 03:14:46,507 INFO L124 PetriNetUnfolderBase]: 192/2463 cut-off events. [2024-11-28 03:14:46,507 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2024-11-28 03:14:46,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3354 conditions, 2463 events. 192/2463 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6915 event pairs, 0 based on Foata normal form. 0/2153 useless extension candidates. Maximal degree in co-relation 3279. Up to 76 conditions per place. [2024-11-28 03:14:46,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 1440 places, 1441 transitions, 5842 flow [2024-11-28 03:14:46,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 417 places, 344 transitions, 2171 flow [2024-11-28 03:14:46,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:46,557 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:46,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-28 03:14:46,559 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:46,559 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:46,559 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:46,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:46,559 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:46,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-28 03:14:46,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:46,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1766226778, now seen corresponding path program 1 times [2024-11-28 03:14:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441617623] [2024-11-28 03:14:46,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:46,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:46,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441617623] [2024-11-28 03:14:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441617623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:46,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:46,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:46,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481734888] [2024-11-28 03:14:46,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:46,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:46,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:46,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:46,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:46,812 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1169 out of 1441 [2024-11-28 03:14:46,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 344 transitions, 2171 flow. Second operand has 3 states, 3 states have (on average 1170.3333333333333) internal successors, (3511), 3 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:46,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:46,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1169 of 1441 [2024-11-28 03:14:46,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:47,562 INFO L124 PetriNetUnfolderBase]: 77/1891 cut-off events. [2024-11-28 03:14:47,562 INFO L125 PetriNetUnfolderBase]: For 9843/9843 co-relation queries the response was YES. [2024-11-28 03:14:47,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3020 conditions, 1891 events. 77/1891 cut-off events. For 9843/9843 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5194 event pairs, 38 based on Foata normal form. 77/1811 useless extension candidates. Maximal degree in co-relation 2883. Up to 272 conditions per place. [2024-11-28 03:14:47,593 INFO L140 encePairwiseOnDemand]: 1435/1441 looper letters, 47 selfloop transitions, 2 changer transitions 1/340 dead transitions. [2024-11-28 03:14:47,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 340 transitions, 2261 flow [2024-11-28 03:14:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3560 transitions. [2024-11-28 03:14:47,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.823502197547999 [2024-11-28 03:14:47,596 INFO L175 Difference]: Start difference. First operand has 417 places, 344 transitions, 2171 flow. Second operand 3 states and 3560 transitions. [2024-11-28 03:14:47,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 340 transitions, 2261 flow [2024-11-28 03:14:47,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 340 transitions, 1000 flow, removed 630 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:47,618 INFO L231 Difference]: Finished difference. Result has 417 places, 339 transitions, 904 flow [2024-11-28 03:14:47,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1441, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=417, PETRI_TRANSITIONS=339} [2024-11-28 03:14:47,619 INFO L279 CegarLoopForPetriNet]: 417 programPoint places, 0 predicate places. [2024-11-28 03:14:47,619 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 339 transitions, 904 flow [2024-11-28 03:14:47,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1170.3333333333333) internal successors, (3511), 3 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:47,620 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:47,620 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:47,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2024-11-28 03:14:47,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-28 03:14:47,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash 341825166, now seen corresponding path program 1 times [2024-11-28 03:14:47,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:47,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675769672] [2024-11-28 03:14:47,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:47,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:47,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:47,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675769672] [2024-11-28 03:14:47,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675769672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:47,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:47,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:47,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190180626] [2024-11-28 03:14:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:47,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:47,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:47,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:47,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:47,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1093 out of 1441 [2024-11-28 03:14:47,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 339 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 1094.0) internal successors, (3282), 3 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:47,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:47,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1093 of 1441 [2024-11-28 03:14:47,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:48,490 INFO L124 PetriNetUnfolderBase]: 39/1697 cut-off events. [2024-11-28 03:14:48,490 INFO L125 PetriNetUnfolderBase]: For 776/776 co-relation queries the response was YES. [2024-11-28 03:14:48,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 1697 events. 39/1697 cut-off events. For 776/776 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3811 event pairs, 0 based on Foata normal form. 38/1658 useless extension candidates. Maximal degree in co-relation 2060. Up to 195 conditions per place. [2024-11-28 03:14:48,514 INFO L140 encePairwiseOnDemand]: 1435/1441 looper letters, 45 selfloop transitions, 1 changer transitions 24/334 dead transitions. [2024-11-28 03:14:48,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 334 transitions, 990 flow [2024-11-28 03:14:48,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3332 transitions. [2024-11-28 03:14:48,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7707610455702059 [2024-11-28 03:14:48,518 INFO L175 Difference]: Start difference. First operand has 417 places, 339 transitions, 904 flow. Second operand 3 states and 3332 transitions. [2024-11-28 03:14:48,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 334 transitions, 990 flow [2024-11-28 03:14:48,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 334 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:48,522 INFO L231 Difference]: Finished difference. Result has 411 places, 310 transitions, 842 flow [2024-11-28 03:14:48,523 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1441, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=411, PETRI_TRANSITIONS=310} [2024-11-28 03:14:48,523 INFO L279 CegarLoopForPetriNet]: 417 programPoint places, -6 predicate places. [2024-11-28 03:14:48,523 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 310 transitions, 842 flow [2024-11-28 03:14:48,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1094.0) internal successors, (3282), 3 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:48,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:48,524 INFO L206 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:48,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2024-11-28 03:14:48,524 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-28 03:14:48,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:48,528 INFO L85 PathProgramCache]: Analyzing trace with hash 668047983, now seen corresponding path program 1 times [2024-11-28 03:14:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:48,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885361008] [2024-11-28 03:14:48,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:48,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:48,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885361008] [2024-11-28 03:14:48,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885361008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:48,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:48,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:48,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972676339] [2024-11-28 03:14:48,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:48,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:48,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:48,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:48,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:48,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1204 out of 1441 [2024-11-28 03:14:48,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 310 transitions, 842 flow. Second operand has 5 states, 5 states have (on average 1213.4) internal successors, (6067), 5 states have internal predecessors, (6067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:48,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:48,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1204 of 1441 [2024-11-28 03:14:48,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:49,297 INFO L124 PetriNetUnfolderBase]: 0/798 cut-off events. [2024-11-28 03:14:49,297 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2024-11-28 03:14:49,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 798 events. 0/798 cut-off events. For 775/775 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 471 event pairs, 0 based on Foata normal form. 1/798 useless extension candidates. Maximal degree in co-relation 0. Up to 119 conditions per place. [2024-11-28 03:14:49,298 INFO L140 encePairwiseOnDemand]: 1436/1441 looper letters, 45 selfloop transitions, 2 changer transitions 3/312 dead transitions. [2024-11-28 03:14:49,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 312 transitions, 946 flow [2024-11-28 03:14:49,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:49,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6071 transitions. [2024-11-28 03:14:49,302 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426092990978488 [2024-11-28 03:14:49,302 INFO L175 Difference]: Start difference. First operand has 411 places, 310 transitions, 842 flow. Second operand 5 states and 6071 transitions. [2024-11-28 03:14:49,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 312 transitions, 946 flow [2024-11-28 03:14:49,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 312 transitions, 945 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:49,310 INFO L231 Difference]: Finished difference. Result has 391 places, 309 transitions, 847 flow [2024-11-28 03:14:49,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1441, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=847, PETRI_PLACES=391, PETRI_TRANSITIONS=309} [2024-11-28 03:14:49,311 INFO L279 CegarLoopForPetriNet]: 417 programPoint places, -26 predicate places. [2024-11-28 03:14:49,311 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 309 transitions, 847 flow [2024-11-28 03:14:49,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1213.4) internal successors, (6067), 5 states have internal predecessors, (6067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:49,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:49,313 INFO L206 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:49,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2024-11-28 03:14:49,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-28 03:14:49,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash -2016636269, now seen corresponding path program 1 times [2024-11-28 03:14:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808310475] [2024-11-28 03:14:49,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:49,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:49,398 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:49,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:49,647 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:49,647 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2024-11-28 03:14:49,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2024-11-28 03:14:49,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2024-11-28 03:14:49,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2024-11-28 03:14:49,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2024-11-28 03:14:49,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2024-11-28 03:14:49,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 45 remaining) [2024-11-28 03:14:49,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2024-11-28 03:14:49,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2024-11-28 03:14:49,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2024-11-28 03:14:49,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2024-11-28 03:14:49,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2024-11-28 03:14:49,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2024-11-28 03:14:49,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2024-11-28 03:14:49,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2024-11-28 03:14:49,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2024-11-28 03:14:49,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2024-11-28 03:14:49,650 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:49,650 WARN L246 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:49,651 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2024-11-28 03:14:49,840 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:49,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1477 places, 1478 transitions, 6072 flow [2024-11-28 03:14:51,077 INFO L124 PetriNetUnfolderBase]: 197/2527 cut-off events. [2024-11-28 03:14:51,077 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2024-11-28 03:14:51,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3461 conditions, 2527 events. 197/2527 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7271 event pairs, 0 based on Foata normal form. 0/2209 useless extension candidates. Maximal degree in co-relation 3384. Up to 78 conditions per place. [2024-11-28 03:14:51,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 1477 places, 1478 transitions, 6072 flow [2024-11-28 03:14:51,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 351 transitions, 2263 flow [2024-11-28 03:14:51,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:51,109 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:51,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-28 03:14:51,111 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:51,111 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:51,111 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:51,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:51,111 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:51,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-28 03:14:51,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2094658906, now seen corresponding path program 1 times [2024-11-28 03:14:51,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:51,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217648943] [2024-11-28 03:14:51,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:51,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:51,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:51,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217648943] [2024-11-28 03:14:51,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217648943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:51,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:51,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:51,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434489526] [2024-11-28 03:14:51,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:51,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:51,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:51,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:51,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:51,338 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1199 out of 1478 [2024-11-28 03:14:51,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 351 transitions, 2263 flow. Second operand has 3 states, 3 states have (on average 1200.3333333333333) internal successors, (3601), 3 states have internal predecessors, (3601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:51,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:51,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1199 of 1478 [2024-11-28 03:14:51,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:52,193 INFO L124 PetriNetUnfolderBase]: 79/1940 cut-off events. [2024-11-28 03:14:52,193 INFO L125 PetriNetUnfolderBase]: For 10622/10622 co-relation queries the response was YES. [2024-11-28 03:14:52,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3118 conditions, 1940 events. 79/1940 cut-off events. For 10622/10622 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5304 event pairs, 39 based on Foata normal form. 79/1858 useless extension candidates. Maximal degree in co-relation 2979. Up to 279 conditions per place. [2024-11-28 03:14:52,224 INFO L140 encePairwiseOnDemand]: 1472/1478 looper letters, 48 selfloop transitions, 2 changer transitions 1/347 dead transitions. [2024-11-28 03:14:52,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 347 transitions, 2355 flow [2024-11-28 03:14:52,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:52,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3651 transitions. [2024-11-28 03:14:52,227 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8234100135317998 [2024-11-28 03:14:52,227 INFO L175 Difference]: Start difference. First operand has 426 places, 351 transitions, 2263 flow. Second operand 3 states and 3651 transitions. [2024-11-28 03:14:52,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 347 transitions, 2355 flow [2024-11-28 03:14:52,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 347 transitions, 1022 flow, removed 666 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:52,249 INFO L231 Difference]: Finished difference. Result has 426 places, 346 transitions, 924 flow [2024-11-28 03:14:52,249 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1478, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=924, PETRI_PLACES=426, PETRI_TRANSITIONS=346} [2024-11-28 03:14:52,249 INFO L279 CegarLoopForPetriNet]: 426 programPoint places, 0 predicate places. [2024-11-28 03:14:52,249 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 346 transitions, 924 flow [2024-11-28 03:14:52,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1200.3333333333333) internal successors, (3601), 3 states have internal predecessors, (3601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:52,250 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:52,250 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:52,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2024-11-28 03:14:52,250 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-28 03:14:52,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:52,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1305452046, now seen corresponding path program 1 times [2024-11-28 03:14:52,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:52,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618173513] [2024-11-28 03:14:52,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:52,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:52,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:52,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618173513] [2024-11-28 03:14:52,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618173513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:52,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:52,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:52,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748166815] [2024-11-28 03:14:52,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:52,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:52,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:52,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:52,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:52,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1121 out of 1478 [2024-11-28 03:14:52,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 346 transitions, 924 flow. Second operand has 3 states, 3 states have (on average 1122.0) internal successors, (3366), 3 states have internal predecessors, (3366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:52,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:52,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1121 of 1478 [2024-11-28 03:14:52,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:53,113 INFO L124 PetriNetUnfolderBase]: 40/1741 cut-off events. [2024-11-28 03:14:53,113 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2024-11-28 03:14:53,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2176 conditions, 1741 events. 40/1741 cut-off events. For 816/816 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 3912 event pairs, 0 based on Foata normal form. 39/1701 useless extension candidates. Maximal degree in co-relation 2114. Up to 200 conditions per place. [2024-11-28 03:14:53,138 INFO L140 encePairwiseOnDemand]: 1472/1478 looper letters, 46 selfloop transitions, 1 changer transitions 24/341 dead transitions. [2024-11-28 03:14:53,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 341 transitions, 1012 flow [2024-11-28 03:14:53,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:53,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:53,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3417 transitions. [2024-11-28 03:14:53,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7706359945872802 [2024-11-28 03:14:53,141 INFO L175 Difference]: Start difference. First operand has 426 places, 346 transitions, 924 flow. Second operand 3 states and 3417 transitions. [2024-11-28 03:14:53,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 341 transitions, 1012 flow [2024-11-28 03:14:53,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 341 transitions, 1008 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:53,145 INFO L231 Difference]: Finished difference. Result has 420 places, 317 transitions, 862 flow [2024-11-28 03:14:53,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1478, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=420, PETRI_TRANSITIONS=317} [2024-11-28 03:14:53,146 INFO L279 CegarLoopForPetriNet]: 426 programPoint places, -6 predicate places. [2024-11-28 03:14:53,146 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 317 transitions, 862 flow [2024-11-28 03:14:53,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1122.0) internal successors, (3366), 3 states have internal predecessors, (3366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:53,147 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:53,147 INFO L206 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:53,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2024-11-28 03:14:53,147 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-28 03:14:53,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:53,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1198859786, now seen corresponding path program 1 times [2024-11-28 03:14:53,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:53,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633417240] [2024-11-28 03:14:53,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:53,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:53,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:53,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633417240] [2024-11-28 03:14:53,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633417240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:53,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:53,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:53,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154530007] [2024-11-28 03:14:53,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:53,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:53,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:53,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:53,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:53,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1235 out of 1478 [2024-11-28 03:14:53,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 317 transitions, 862 flow. Second operand has 5 states, 5 states have (on average 1244.6) internal successors, (6223), 5 states have internal predecessors, (6223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:53,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:53,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1235 of 1478 [2024-11-28 03:14:53,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:54,007 INFO L124 PetriNetUnfolderBase]: 0/818 cut-off events. [2024-11-28 03:14:54,008 INFO L125 PetriNetUnfolderBase]: For 815/815 co-relation queries the response was YES. [2024-11-28 03:14:54,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 818 events. 0/818 cut-off events. For 815/815 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 484 event pairs, 0 based on Foata normal form. 1/818 useless extension candidates. Maximal degree in co-relation 0. Up to 122 conditions per place. [2024-11-28 03:14:54,009 INFO L140 encePairwiseOnDemand]: 1473/1478 looper letters, 46 selfloop transitions, 2 changer transitions 3/319 dead transitions. [2024-11-28 03:14:54,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 319 transitions, 968 flow [2024-11-28 03:14:54,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:54,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6227 transitions. [2024-11-28 03:14:54,013 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426251691474966 [2024-11-28 03:14:54,013 INFO L175 Difference]: Start difference. First operand has 420 places, 317 transitions, 862 flow. Second operand 5 states and 6227 transitions. [2024-11-28 03:14:54,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 319 transitions, 968 flow [2024-11-28 03:14:54,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 319 transitions, 967 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:54,017 INFO L231 Difference]: Finished difference. Result has 400 places, 316 transitions, 867 flow [2024-11-28 03:14:54,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1478, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=867, PETRI_PLACES=400, PETRI_TRANSITIONS=316} [2024-11-28 03:14:54,018 INFO L279 CegarLoopForPetriNet]: 426 programPoint places, -26 predicate places. [2024-11-28 03:14:54,018 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 316 transitions, 867 flow [2024-11-28 03:14:54,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1244.6) internal successors, (6223), 5 states have internal predecessors, (6223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:54,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:54,019 INFO L206 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:54,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-11-28 03:14:54,019 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-28 03:14:54,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:54,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1222810580, now seen corresponding path program 1 times [2024-11-28 03:14:54,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:54,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008307849] [2024-11-28 03:14:54,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:54,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:54,105 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:54,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:54,346 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-11-28 03:14:54,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-28 03:14:54,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-28 03:14:54,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-28 03:14:54,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-28 03:14:54,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-28 03:14:54,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2024-11-28 03:14:54,349 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:54,349 WARN L246 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:54,349 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2024-11-28 03:14:54,543 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:54,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1514 places, 1515 transitions, 6306 flow [2024-11-28 03:14:55,619 INFO L124 PetriNetUnfolderBase]: 202/2591 cut-off events. [2024-11-28 03:14:55,619 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2024-11-28 03:14:55,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3569 conditions, 2591 events. 202/2591 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7571 event pairs, 0 based on Foata normal form. 0/2265 useless extension candidates. Maximal degree in co-relation 3490. Up to 80 conditions per place. [2024-11-28 03:14:55,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 1514 places, 1515 transitions, 6306 flow [2024-11-28 03:14:55,679 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 358 transitions, 2357 flow [2024-11-28 03:14:55,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:14:55,679 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:14:55,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-28 03:14:55,680 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:14:55,681 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:14:55,681 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:14:55,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:55,681 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:55,681 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-28 03:14:55,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:55,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1822971302, now seen corresponding path program 1 times [2024-11-28 03:14:55,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:55,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135563283] [2024-11-28 03:14:55,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:55,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:55,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:55,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135563283] [2024-11-28 03:14:55,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135563283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:55,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:55,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:55,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811526923] [2024-11-28 03:14:55,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:55,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:55,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:55,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:55,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:55,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1229 out of 1515 [2024-11-28 03:14:55,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 358 transitions, 2357 flow. Second operand has 3 states, 3 states have (on average 1230.3333333333333) internal successors, (3691), 3 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:55,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:55,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1229 of 1515 [2024-11-28 03:14:55,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:56,750 INFO L124 PetriNetUnfolderBase]: 81/1989 cut-off events. [2024-11-28 03:14:56,750 INFO L125 PetriNetUnfolderBase]: For 11441/11441 co-relation queries the response was YES. [2024-11-28 03:14:56,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3217 conditions, 1989 events. 81/1989 cut-off events. For 11441/11441 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5432 event pairs, 40 based on Foata normal form. 81/1905 useless extension candidates. Maximal degree in co-relation 3076. Up to 286 conditions per place. [2024-11-28 03:14:56,785 INFO L140 encePairwiseOnDemand]: 1509/1515 looper letters, 49 selfloop transitions, 2 changer transitions 1/354 dead transitions. [2024-11-28 03:14:56,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 354 transitions, 2451 flow [2024-11-28 03:14:56,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:56,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3742 transitions. [2024-11-28 03:14:56,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8233223322332234 [2024-11-28 03:14:56,789 INFO L175 Difference]: Start difference. First operand has 435 places, 358 transitions, 2357 flow. Second operand 3 states and 3742 transitions. [2024-11-28 03:14:56,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 354 transitions, 2451 flow [2024-11-28 03:14:56,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 354 transitions, 1044 flow, removed 703 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:56,813 INFO L231 Difference]: Finished difference. Result has 435 places, 353 transitions, 944 flow [2024-11-28 03:14:56,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1515, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=944, PETRI_PLACES=435, PETRI_TRANSITIONS=353} [2024-11-28 03:14:56,814 INFO L279 CegarLoopForPetriNet]: 435 programPoint places, 0 predicate places. [2024-11-28 03:14:56,814 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 353 transitions, 944 flow [2024-11-28 03:14:56,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1230.3333333333333) internal successors, (3691), 3 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:56,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:56,815 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:56,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2024-11-28 03:14:56,815 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-28 03:14:56,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:56,816 INFO L85 PathProgramCache]: Analyzing trace with hash -906228786, now seen corresponding path program 1 times [2024-11-28 03:14:56,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:56,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922521000] [2024-11-28 03:14:56,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:56,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:56,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:56,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922521000] [2024-11-28 03:14:56,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922521000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:56,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:56,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:14:56,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064954557] [2024-11-28 03:14:56,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:56,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:56,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:56,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:56,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:57,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1149 out of 1515 [2024-11-28 03:14:57,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 353 transitions, 944 flow. Second operand has 3 states, 3 states have (on average 1150.0) internal successors, (3450), 3 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:57,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:57,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1149 of 1515 [2024-11-28 03:14:57,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:57,784 INFO L124 PetriNetUnfolderBase]: 41/1785 cut-off events. [2024-11-28 03:14:57,784 INFO L125 PetriNetUnfolderBase]: For 857/857 co-relation queries the response was YES. [2024-11-28 03:14:57,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2231 conditions, 1785 events. 41/1785 cut-off events. For 857/857 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4013 event pairs, 0 based on Foata normal form. 40/1744 useless extension candidates. Maximal degree in co-relation 2168. Up to 205 conditions per place. [2024-11-28 03:14:57,807 INFO L140 encePairwiseOnDemand]: 1509/1515 looper letters, 47 selfloop transitions, 1 changer transitions 24/348 dead transitions. [2024-11-28 03:14:57,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 348 transitions, 1034 flow [2024-11-28 03:14:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:57,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:57,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3502 transitions. [2024-11-28 03:14:57,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7705170517051705 [2024-11-28 03:14:57,809 INFO L175 Difference]: Start difference. First operand has 435 places, 353 transitions, 944 flow. Second operand 3 states and 3502 transitions. [2024-11-28 03:14:57,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 348 transitions, 1034 flow [2024-11-28 03:14:57,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 348 transitions, 1030 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:57,814 INFO L231 Difference]: Finished difference. Result has 429 places, 324 transitions, 882 flow [2024-11-28 03:14:57,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1515, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=882, PETRI_PLACES=429, PETRI_TRANSITIONS=324} [2024-11-28 03:14:57,814 INFO L279 CegarLoopForPetriNet]: 435 programPoint places, -6 predicate places. [2024-11-28 03:14:57,814 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 324 transitions, 882 flow [2024-11-28 03:14:57,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1150.0) internal successors, (3450), 3 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:57,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:57,815 INFO L206 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:57,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2024-11-28 03:14:57,815 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-28 03:14:57,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:57,819 INFO L85 PathProgramCache]: Analyzing trace with hash 218133451, now seen corresponding path program 1 times [2024-11-28 03:14:57,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:57,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183832600] [2024-11-28 03:14:57,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:57,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:58,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:58,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183832600] [2024-11-28 03:14:58,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183832600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:58,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:58,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:14:58,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929870960] [2024-11-28 03:14:58,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:58,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:14:58,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:58,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:14:58,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:14:58,257 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1266 out of 1515 [2024-11-28 03:14:58,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 324 transitions, 882 flow. Second operand has 5 states, 5 states have (on average 1275.8) internal successors, (6379), 5 states have internal predecessors, (6379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:58,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:58,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1266 of 1515 [2024-11-28 03:14:58,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:58,657 INFO L124 PetriNetUnfolderBase]: 0/838 cut-off events. [2024-11-28 03:14:58,657 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2024-11-28 03:14:58,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 838 events. 0/838 cut-off events. For 856/856 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 495 event pairs, 0 based on Foata normal form. 1/838 useless extension candidates. Maximal degree in co-relation 0. Up to 125 conditions per place. [2024-11-28 03:14:58,658 INFO L140 encePairwiseOnDemand]: 1510/1515 looper letters, 47 selfloop transitions, 2 changer transitions 3/326 dead transitions. [2024-11-28 03:14:58,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 326 transitions, 990 flow [2024-11-28 03:14:58,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:14:58,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:14:58,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6383 transitions. [2024-11-28 03:14:58,664 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426402640264027 [2024-11-28 03:14:58,664 INFO L175 Difference]: Start difference. First operand has 429 places, 324 transitions, 882 flow. Second operand 5 states and 6383 transitions. [2024-11-28 03:14:58,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 326 transitions, 990 flow [2024-11-28 03:14:58,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 326 transitions, 989 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:58,668 INFO L231 Difference]: Finished difference. Result has 409 places, 323 transitions, 887 flow [2024-11-28 03:14:58,668 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1515, PETRI_DIFFERENCE_MINUEND_FLOW=881, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=887, PETRI_PLACES=409, PETRI_TRANSITIONS=323} [2024-11-28 03:14:58,669 INFO L279 CegarLoopForPetriNet]: 435 programPoint places, -26 predicate places. [2024-11-28 03:14:58,669 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 323 transitions, 887 flow [2024-11-28 03:14:58,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1275.8) internal successors, (6379), 5 states have internal predecessors, (6379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:14:58,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:58,670 INFO L206 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:58,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2024-11-28 03:14:58,670 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-28 03:14:58,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:58,674 INFO L85 PathProgramCache]: Analyzing trace with hash 595429310, now seen corresponding path program 1 times [2024-11-28 03:14:58,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:58,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433369672] [2024-11-28 03:14:58,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:58,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:58,760 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:14:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:14:59,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:14:59,049 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (41 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 47 remaining) [2024-11-28 03:14:59,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 47 remaining) [2024-11-28 03:14:59,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 47 remaining) [2024-11-28 03:14:59,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 47 remaining) [2024-11-28 03:14:59,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 47 remaining) [2024-11-28 03:14:59,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 47 remaining) [2024-11-28 03:14:59,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 47 remaining) [2024-11-28 03:14:59,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2024-11-28 03:14:59,052 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:14:59,052 WARN L246 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:14:59,052 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2024-11-28 03:14:59,260 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:14:59,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1551 places, 1552 transitions, 6544 flow [2024-11-28 03:15:00,197 INFO L124 PetriNetUnfolderBase]: 207/2655 cut-off events. [2024-11-28 03:15:00,197 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2024-11-28 03:15:00,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3678 conditions, 2655 events. 207/2655 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7586 event pairs, 0 based on Foata normal form. 0/2321 useless extension candidates. Maximal degree in co-relation 3597. Up to 82 conditions per place. [2024-11-28 03:15:00,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 1551 places, 1552 transitions, 6544 flow [2024-11-28 03:15:00,255 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 365 transitions, 2453 flow [2024-11-28 03:15:00,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:00,256 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:00,256 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-28 03:15:00,258 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:00,258 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:00,258 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:00,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:00,258 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:00,258 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-28 03:15:00,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:00,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1396729254, now seen corresponding path program 1 times [2024-11-28 03:15:00,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:00,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874462387] [2024-11-28 03:15:00,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:00,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:00,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:00,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:00,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874462387] [2024-11-28 03:15:00,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874462387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:00,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:00,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:00,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431662895] [2024-11-28 03:15:00,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:00,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:00,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:00,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:00,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:00,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1259 out of 1552 [2024-11-28 03:15:00,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 365 transitions, 2453 flow. Second operand has 3 states, 3 states have (on average 1260.3333333333333) internal successors, (3781), 3 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:00,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:00,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1259 of 1552 [2024-11-28 03:15:00,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:01,352 INFO L124 PetriNetUnfolderBase]: 83/2038 cut-off events. [2024-11-28 03:15:01,352 INFO L125 PetriNetUnfolderBase]: For 12301/12301 co-relation queries the response was YES. [2024-11-28 03:15:01,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3317 conditions, 2038 events. 83/2038 cut-off events. For 12301/12301 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5367 event pairs, 41 based on Foata normal form. 42/1911 useless extension candidates. Maximal degree in co-relation 3174. Up to 293 conditions per place. [2024-11-28 03:15:01,389 INFO L140 encePairwiseOnDemand]: 1546/1552 looper letters, 50 selfloop transitions, 2 changer transitions 1/361 dead transitions. [2024-11-28 03:15:01,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 361 transitions, 2549 flow [2024-11-28 03:15:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3833 transitions. [2024-11-28 03:15:01,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8232388316151202 [2024-11-28 03:15:01,392 INFO L175 Difference]: Start difference. First operand has 444 places, 365 transitions, 2453 flow. Second operand 3 states and 3833 transitions. [2024-11-28 03:15:01,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 361 transitions, 2549 flow [2024-11-28 03:15:01,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 361 transitions, 1066 flow, removed 741 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:01,421 INFO L231 Difference]: Finished difference. Result has 444 places, 360 transitions, 964 flow [2024-11-28 03:15:01,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1552, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=444, PETRI_TRANSITIONS=360} [2024-11-28 03:15:01,422 INFO L279 CegarLoopForPetriNet]: 444 programPoint places, 0 predicate places. [2024-11-28 03:15:01,422 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 360 transitions, 964 flow [2024-11-28 03:15:01,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1260.3333333333333) internal successors, (3781), 3 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:01,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:01,423 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:01,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2024-11-28 03:15:01,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-28 03:15:01,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1998250034, now seen corresponding path program 1 times [2024-11-28 03:15:01,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:01,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327409336] [2024-11-28 03:15:01,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:01,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:01,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:01,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327409336] [2024-11-28 03:15:01,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327409336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:01,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:01,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392440445] [2024-11-28 03:15:01,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:01,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:01,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:01,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:01,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:01,615 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1177 out of 1552 [2024-11-28 03:15:01,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 360 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 1178.0) internal successors, (3534), 3 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:01,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:01,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1177 of 1552 [2024-11-28 03:15:01,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:02,390 INFO L124 PetriNetUnfolderBase]: 42/1829 cut-off events. [2024-11-28 03:15:02,390 INFO L125 PetriNetUnfolderBase]: For 899/899 co-relation queries the response was YES. [2024-11-28 03:15:02,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2286 conditions, 1829 events. 42/1829 cut-off events. For 899/899 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4034 event pairs, 0 based on Foata normal form. 41/1787 useless extension candidates. Maximal degree in co-relation 2222. Up to 210 conditions per place. [2024-11-28 03:15:02,418 INFO L140 encePairwiseOnDemand]: 1546/1552 looper letters, 48 selfloop transitions, 1 changer transitions 24/355 dead transitions. [2024-11-28 03:15:02,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 355 transitions, 1056 flow [2024-11-28 03:15:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:02,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3587 transitions. [2024-11-28 03:15:02,421 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7704037800687286 [2024-11-28 03:15:02,421 INFO L175 Difference]: Start difference. First operand has 444 places, 360 transitions, 964 flow. Second operand 3 states and 3587 transitions. [2024-11-28 03:15:02,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 355 transitions, 1056 flow [2024-11-28 03:15:02,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 355 transitions, 1052 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:02,426 INFO L231 Difference]: Finished difference. Result has 438 places, 331 transitions, 902 flow [2024-11-28 03:15:02,427 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1552, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=438, PETRI_TRANSITIONS=331} [2024-11-28 03:15:02,427 INFO L279 CegarLoopForPetriNet]: 444 programPoint places, -6 predicate places. [2024-11-28 03:15:02,427 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 331 transitions, 902 flow [2024-11-28 03:15:02,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1178.0) internal successors, (3534), 3 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:02,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:02,428 INFO L206 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:02,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2024-11-28 03:15:02,428 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-28 03:15:02,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1204955122, now seen corresponding path program 1 times [2024-11-28 03:15:02,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:02,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358004637] [2024-11-28 03:15:02,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:02,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:02,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:02,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:02,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358004637] [2024-11-28 03:15:02,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358004637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:02,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:02,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:02,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175915796] [2024-11-28 03:15:02,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:02,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:02,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:02,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:02,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:02,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1297 out of 1552 [2024-11-28 03:15:02,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 331 transitions, 902 flow. Second operand has 5 states, 5 states have (on average 1307.0) internal successors, (6535), 5 states have internal predecessors, (6535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:02,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:02,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1297 of 1552 [2024-11-28 03:15:02,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:03,322 INFO L124 PetriNetUnfolderBase]: 0/858 cut-off events. [2024-11-28 03:15:03,322 INFO L125 PetriNetUnfolderBase]: For 898/898 co-relation queries the response was YES. [2024-11-28 03:15:03,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 858 events. 0/858 cut-off events. For 898/898 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 508 event pairs, 0 based on Foata normal form. 1/858 useless extension candidates. Maximal degree in co-relation 0. Up to 128 conditions per place. [2024-11-28 03:15:03,323 INFO L140 encePairwiseOnDemand]: 1547/1552 looper letters, 48 selfloop transitions, 2 changer transitions 3/333 dead transitions. [2024-11-28 03:15:03,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 333 transitions, 1012 flow [2024-11-28 03:15:03,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:03,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:03,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6539 transitions. [2024-11-28 03:15:03,327 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426546391752577 [2024-11-28 03:15:03,327 INFO L175 Difference]: Start difference. First operand has 438 places, 331 transitions, 902 flow. Second operand 5 states and 6539 transitions. [2024-11-28 03:15:03,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 333 transitions, 1012 flow [2024-11-28 03:15:03,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 333 transitions, 1011 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:03,332 INFO L231 Difference]: Finished difference. Result has 418 places, 330 transitions, 907 flow [2024-11-28 03:15:03,333 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1552, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=907, PETRI_PLACES=418, PETRI_TRANSITIONS=330} [2024-11-28 03:15:03,333 INFO L279 CegarLoopForPetriNet]: 444 programPoint places, -26 predicate places. [2024-11-28 03:15:03,333 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 330 transitions, 907 flow [2024-11-28 03:15:03,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1307.0) internal successors, (6535), 5 states have internal predecessors, (6535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:03,334 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:03,335 INFO L206 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:03,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2024-11-28 03:15:03,335 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-28 03:15:03,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:03,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1890202801, now seen corresponding path program 1 times [2024-11-28 03:15:03,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:03,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335464016] [2024-11-28 03:15:03,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:03,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:03,437 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:03,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:03,719 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:03,719 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 48 remaining) [2024-11-28 03:15:03,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2024-11-28 03:15:03,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2024-11-28 03:15:03,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2024-11-28 03:15:03,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2024-11-28 03:15:03,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2024-11-28 03:15:03,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2024-11-28 03:15:03,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2024-11-28 03:15:03,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2024-11-28 03:15:03,722 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:03,723 WARN L246 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:03,723 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2024-11-28 03:15:03,941 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:03,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1588 places, 1589 transitions, 6786 flow [2024-11-28 03:15:05,185 INFO L124 PetriNetUnfolderBase]: 212/2719 cut-off events. [2024-11-28 03:15:05,185 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2024-11-28 03:15:05,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3788 conditions, 2719 events. 212/2719 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7798 event pairs, 0 based on Foata normal form. 0/2377 useless extension candidates. Maximal degree in co-relation 3705. Up to 84 conditions per place. [2024-11-28 03:15:05,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 1588 places, 1589 transitions, 6786 flow [2024-11-28 03:15:05,246 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 453 places, 372 transitions, 2551 flow [2024-11-28 03:15:05,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:05,246 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:05,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-28 03:15:05,248 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:05,248 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:05,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:05,248 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:05,248 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:05,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-28 03:15:05,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:05,248 INFO L85 PathProgramCache]: Analyzing trace with hash 921582246, now seen corresponding path program 1 times [2024-11-28 03:15:05,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:05,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086459920] [2024-11-28 03:15:05,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:05,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:05,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:05,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086459920] [2024-11-28 03:15:05,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086459920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:05,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:05,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:05,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719861165] [2024-11-28 03:15:05,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:05,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:05,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:05,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:05,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:05,528 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1289 out of 1589 [2024-11-28 03:15:05,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 372 transitions, 2551 flow. Second operand has 3 states, 3 states have (on average 1290.3333333333333) internal successors, (3871), 3 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:05,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:05,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1289 of 1589 [2024-11-28 03:15:05,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:06,484 INFO L124 PetriNetUnfolderBase]: 85/2087 cut-off events. [2024-11-28 03:15:06,484 INFO L125 PetriNetUnfolderBase]: For 13203/13203 co-relation queries the response was YES. [2024-11-28 03:15:06,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3418 conditions, 2087 events. 85/2087 cut-off events. For 13203/13203 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5540 event pairs, 42 based on Foata normal form. 43/1957 useless extension candidates. Maximal degree in co-relation 3273. Up to 300 conditions per place. [2024-11-28 03:15:06,522 INFO L140 encePairwiseOnDemand]: 1583/1589 looper letters, 51 selfloop transitions, 2 changer transitions 1/368 dead transitions. [2024-11-28 03:15:06,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 368 transitions, 2649 flow [2024-11-28 03:15:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:06,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3924 transitions. [2024-11-28 03:15:06,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8231592196349906 [2024-11-28 03:15:06,526 INFO L175 Difference]: Start difference. First operand has 453 places, 372 transitions, 2551 flow. Second operand 3 states and 3924 transitions. [2024-11-28 03:15:06,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 368 transitions, 2649 flow [2024-11-28 03:15:06,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 368 transitions, 1088 flow, removed 780 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:06,553 INFO L231 Difference]: Finished difference. Result has 453 places, 367 transitions, 984 flow [2024-11-28 03:15:06,554 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1589, PETRI_DIFFERENCE_MINUEND_FLOW=982, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=984, PETRI_PLACES=453, PETRI_TRANSITIONS=367} [2024-11-28 03:15:06,554 INFO L279 CegarLoopForPetriNet]: 453 programPoint places, 0 predicate places. [2024-11-28 03:15:06,554 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 367 transitions, 984 flow [2024-11-28 03:15:06,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1290.3333333333333) internal successors, (3871), 3 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:06,555 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:06,555 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:06,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2024-11-28 03:15:06,555 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-28 03:15:06,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:06,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1970611698, now seen corresponding path program 1 times [2024-11-28 03:15:06,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:06,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57004189] [2024-11-28 03:15:06,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:06,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:06,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:06,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57004189] [2024-11-28 03:15:06,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57004189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:06,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:06,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:06,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767367909] [2024-11-28 03:15:06,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:06,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:06,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:06,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:06,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:06,753 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 1589 [2024-11-28 03:15:06,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 367 transitions, 984 flow. Second operand has 3 states, 3 states have (on average 1206.0) internal successors, (3618), 3 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:06,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:06,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 1589 [2024-11-28 03:15:06,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:07,570 INFO L124 PetriNetUnfolderBase]: 43/1873 cut-off events. [2024-11-28 03:15:07,570 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-11-28 03:15:07,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2341 conditions, 1873 events. 43/1873 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4133 event pairs, 0 based on Foata normal form. 42/1830 useless extension candidates. Maximal degree in co-relation 2276. Up to 215 conditions per place. [2024-11-28 03:15:07,599 INFO L140 encePairwiseOnDemand]: 1583/1589 looper letters, 49 selfloop transitions, 1 changer transitions 24/362 dead transitions. [2024-11-28 03:15:07,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 362 transitions, 1078 flow [2024-11-28 03:15:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:07,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3672 transitions. [2024-11-28 03:15:07,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7702957835116425 [2024-11-28 03:15:07,602 INFO L175 Difference]: Start difference. First operand has 453 places, 367 transitions, 984 flow. Second operand 3 states and 3672 transitions. [2024-11-28 03:15:07,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 362 transitions, 1078 flow [2024-11-28 03:15:07,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 362 transitions, 1074 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:07,607 INFO L231 Difference]: Finished difference. Result has 447 places, 338 transitions, 922 flow [2024-11-28 03:15:07,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1589, PETRI_DIFFERENCE_MINUEND_FLOW=970, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=922, PETRI_PLACES=447, PETRI_TRANSITIONS=338} [2024-11-28 03:15:07,608 INFO L279 CegarLoopForPetriNet]: 453 programPoint places, -6 predicate places. [2024-11-28 03:15:07,608 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 338 transitions, 922 flow [2024-11-28 03:15:07,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1206.0) internal successors, (3618), 3 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:07,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:07,609 INFO L206 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:07,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-11-28 03:15:07,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-28 03:15:07,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:07,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1247054113, now seen corresponding path program 1 times [2024-11-28 03:15:07,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:07,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012835768] [2024-11-28 03:15:07,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:07,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:07,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:07,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012835768] [2024-11-28 03:15:07,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012835768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:07,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:07,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:07,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336139637] [2024-11-28 03:15:07,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:07,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:07,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:07,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:07,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:08,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1328 out of 1589 [2024-11-28 03:15:08,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 338 transitions, 922 flow. Second operand has 5 states, 5 states have (on average 1338.2) internal successors, (6691), 5 states have internal predecessors, (6691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:08,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:08,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1328 of 1589 [2024-11-28 03:15:08,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:08,563 INFO L124 PetriNetUnfolderBase]: 0/878 cut-off events. [2024-11-28 03:15:08,563 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-11-28 03:15:08,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 878 events. 0/878 cut-off events. For 941/941 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 519 event pairs, 0 based on Foata normal form. 1/878 useless extension candidates. Maximal degree in co-relation 0. Up to 131 conditions per place. [2024-11-28 03:15:08,564 INFO L140 encePairwiseOnDemand]: 1584/1589 looper letters, 49 selfloop transitions, 2 changer transitions 3/340 dead transitions. [2024-11-28 03:15:08,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 340 transitions, 1034 flow [2024-11-28 03:15:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:08,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6695 transitions. [2024-11-28 03:15:08,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426683448709881 [2024-11-28 03:15:08,568 INFO L175 Difference]: Start difference. First operand has 447 places, 338 transitions, 922 flow. Second operand 5 states and 6695 transitions. [2024-11-28 03:15:08,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 340 transitions, 1034 flow [2024-11-28 03:15:08,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 340 transitions, 1033 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:08,572 INFO L231 Difference]: Finished difference. Result has 427 places, 337 transitions, 927 flow [2024-11-28 03:15:08,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1589, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=927, PETRI_PLACES=427, PETRI_TRANSITIONS=337} [2024-11-28 03:15:08,573 INFO L279 CegarLoopForPetriNet]: 453 programPoint places, -26 predicate places. [2024-11-28 03:15:08,573 INFO L471 AbstractCegarLoop]: Abstraction has has 427 places, 337 transitions, 927 flow [2024-11-28 03:15:08,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1338.2) internal successors, (6691), 5 states have internal predecessors, (6691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:08,574 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:08,574 INFO L206 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:08,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-11-28 03:15:08,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-28 03:15:08,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:08,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1682350349, now seen corresponding path program 1 times [2024-11-28 03:15:08,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:08,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490571153] [2024-11-28 03:15:08,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:08,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:08,674 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:08,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:08,959 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-28 03:15:08,960 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-28 03:15:08,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-28 03:15:08,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-28 03:15:08,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2024-11-28 03:15:08,963 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:08,963 WARN L246 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:08,963 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2024-11-28 03:15:09,165 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:09,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1625 places, 1626 transitions, 7032 flow [2024-11-28 03:15:10,193 INFO L124 PetriNetUnfolderBase]: 217/2783 cut-off events. [2024-11-28 03:15:10,193 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2024-11-28 03:15:10,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3899 conditions, 2783 events. 217/2783 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7864 event pairs, 0 based on Foata normal form. 0/2433 useless extension candidates. Maximal degree in co-relation 3814. Up to 86 conditions per place. [2024-11-28 03:15:10,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 1625 places, 1626 transitions, 7032 flow [2024-11-28 03:15:10,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 462 places, 379 transitions, 2651 flow [2024-11-28 03:15:10,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:10,257 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:10,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-28 03:15:10,258 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:10,258 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:10,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:10,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:10,259 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:10,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-28 03:15:10,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:10,259 INFO L85 PathProgramCache]: Analyzing trace with hash 397530278, now seen corresponding path program 1 times [2024-11-28 03:15:10,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:10,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197779539] [2024-11-28 03:15:10,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:10,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:10,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:10,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197779539] [2024-11-28 03:15:10,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197779539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:10,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:10,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:10,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319202924] [2024-11-28 03:15:10,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:10,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:10,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:10,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:10,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:10,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1319 out of 1626 [2024-11-28 03:15:10,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 379 transitions, 2651 flow. Second operand has 3 states, 3 states have (on average 1320.3333333333333) internal successors, (3961), 3 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:10,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:10,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1319 of 1626 [2024-11-28 03:15:10,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:11,504 INFO L124 PetriNetUnfolderBase]: 87/2136 cut-off events. [2024-11-28 03:15:11,504 INFO L125 PetriNetUnfolderBase]: For 14148/14148 co-relation queries the response was YES. [2024-11-28 03:15:11,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3520 conditions, 2136 events. 87/2136 cut-off events. For 14148/14148 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5643 event pairs, 43 based on Foata normal form. 44/2003 useless extension candidates. Maximal degree in co-relation 3373. Up to 307 conditions per place. [2024-11-28 03:15:11,545 INFO L140 encePairwiseOnDemand]: 1620/1626 looper letters, 52 selfloop transitions, 2 changer transitions 1/375 dead transitions. [2024-11-28 03:15:11,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 375 transitions, 2751 flow [2024-11-28 03:15:11,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4015 transitions. [2024-11-28 03:15:11,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8230832308323083 [2024-11-28 03:15:11,548 INFO L175 Difference]: Start difference. First operand has 462 places, 379 transitions, 2651 flow. Second operand 3 states and 4015 transitions. [2024-11-28 03:15:11,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 375 transitions, 2751 flow [2024-11-28 03:15:11,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 375 transitions, 1110 flow, removed 820 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:11,582 INFO L231 Difference]: Finished difference. Result has 462 places, 374 transitions, 1004 flow [2024-11-28 03:15:11,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1626, PETRI_DIFFERENCE_MINUEND_FLOW=1002, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1004, PETRI_PLACES=462, PETRI_TRANSITIONS=374} [2024-11-28 03:15:11,583 INFO L279 CegarLoopForPetriNet]: 462 programPoint places, 0 predicate places. [2024-11-28 03:15:11,583 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 374 transitions, 1004 flow [2024-11-28 03:15:11,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1320.3333333333333) internal successors, (3961), 3 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:11,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:11,584 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:11,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2024-11-28 03:15:11,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-28 03:15:11,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:11,584 INFO L85 PathProgramCache]: Analyzing trace with hash -823313778, now seen corresponding path program 1 times [2024-11-28 03:15:11,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:11,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161304231] [2024-11-28 03:15:11,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:11,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:11,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:11,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161304231] [2024-11-28 03:15:11,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161304231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:11,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:11,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:11,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12967363] [2024-11-28 03:15:11,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:11,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:11,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:11,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:11,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:11,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1233 out of 1626 [2024-11-28 03:15:11,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 374 transitions, 1004 flow. Second operand has 3 states, 3 states have (on average 1234.0) internal successors, (3702), 3 states have internal predecessors, (3702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:11,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:11,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1233 of 1626 [2024-11-28 03:15:11,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:12,695 INFO L124 PetriNetUnfolderBase]: 44/1917 cut-off events. [2024-11-28 03:15:12,695 INFO L125 PetriNetUnfolderBase]: For 986/986 co-relation queries the response was YES. [2024-11-28 03:15:12,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 1917 events. 44/1917 cut-off events. For 986/986 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4233 event pairs, 0 based on Foata normal form. 43/1873 useless extension candidates. Maximal degree in co-relation 2330. Up to 220 conditions per place. [2024-11-28 03:15:12,727 INFO L140 encePairwiseOnDemand]: 1620/1626 looper letters, 50 selfloop transitions, 1 changer transitions 24/369 dead transitions. [2024-11-28 03:15:12,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 369 transitions, 1100 flow [2024-11-28 03:15:12,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3757 transitions. [2024-11-28 03:15:12,731 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7701927019270193 [2024-11-28 03:15:12,731 INFO L175 Difference]: Start difference. First operand has 462 places, 374 transitions, 1004 flow. Second operand 3 states and 3757 transitions. [2024-11-28 03:15:12,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 369 transitions, 1100 flow [2024-11-28 03:15:12,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 369 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:12,736 INFO L231 Difference]: Finished difference. Result has 456 places, 345 transitions, 942 flow [2024-11-28 03:15:12,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1626, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=942, PETRI_PLACES=456, PETRI_TRANSITIONS=345} [2024-11-28 03:15:12,737 INFO L279 CegarLoopForPetriNet]: 462 programPoint places, -6 predicate places. [2024-11-28 03:15:12,737 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 345 transitions, 942 flow [2024-11-28 03:15:12,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1234.0) internal successors, (3702), 3 states have internal predecessors, (3702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:12,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:12,737 INFO L206 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:12,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-11-28 03:15:12,738 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-28 03:15:12,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:12,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1889091490, now seen corresponding path program 1 times [2024-11-28 03:15:12,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:12,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524020921] [2024-11-28 03:15:12,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:12,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:12,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:12,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524020921] [2024-11-28 03:15:12,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524020921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:12,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:12,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:12,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676934538] [2024-11-28 03:15:12,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:12,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:12,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:12,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:12,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:13,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1359 out of 1626 [2024-11-28 03:15:13,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 345 transitions, 942 flow. Second operand has 5 states, 5 states have (on average 1369.4) internal successors, (6847), 5 states have internal predecessors, (6847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:13,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:13,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1359 of 1626 [2024-11-28 03:15:13,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:13,751 INFO L124 PetriNetUnfolderBase]: 0/898 cut-off events. [2024-11-28 03:15:13,751 INFO L125 PetriNetUnfolderBase]: For 985/985 co-relation queries the response was YES. [2024-11-28 03:15:13,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 898 events. 0/898 cut-off events. For 985/985 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 531 event pairs, 0 based on Foata normal form. 1/898 useless extension candidates. Maximal degree in co-relation 0. Up to 134 conditions per place. [2024-11-28 03:15:13,752 INFO L140 encePairwiseOnDemand]: 1621/1626 looper letters, 50 selfloop transitions, 2 changer transitions 3/347 dead transitions. [2024-11-28 03:15:13,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 347 transitions, 1056 flow [2024-11-28 03:15:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6851 transitions. [2024-11-28 03:15:13,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426814268142682 [2024-11-28 03:15:13,757 INFO L175 Difference]: Start difference. First operand has 456 places, 345 transitions, 942 flow. Second operand 5 states and 6851 transitions. [2024-11-28 03:15:13,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 347 transitions, 1056 flow [2024-11-28 03:15:13,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 347 transitions, 1055 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:13,762 INFO L231 Difference]: Finished difference. Result has 436 places, 344 transitions, 947 flow [2024-11-28 03:15:13,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1626, PETRI_DIFFERENCE_MINUEND_FLOW=941, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=947, PETRI_PLACES=436, PETRI_TRANSITIONS=344} [2024-11-28 03:15:13,762 INFO L279 CegarLoopForPetriNet]: 462 programPoint places, -26 predicate places. [2024-11-28 03:15:13,763 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 344 transitions, 947 flow [2024-11-28 03:15:13,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1369.4) internal successors, (6847), 5 states have internal predecessors, (6847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:13,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:13,764 INFO L206 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:13,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-11-28 03:15:13,764 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-28 03:15:13,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1798433586, now seen corresponding path program 1 times [2024-11-28 03:15:13,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:13,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034931251] [2024-11-28 03:15:13,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:13,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:13,871 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:14,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:14,424 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:14,425 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining) [2024-11-28 03:15:14,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2024-11-28 03:15:14,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2024-11-28 03:15:14,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2024-11-28 03:15:14,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2024-11-28 03:15:14,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2024-11-28 03:15:14,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 50 remaining) [2024-11-28 03:15:14,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2024-11-28 03:15:14,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2024-11-28 03:15:14,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2024-11-28 03:15:14,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2024-11-28 03:15:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2024-11-28 03:15:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2024-11-28 03:15:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2024-11-28 03:15:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2024-11-28 03:15:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2024-11-28 03:15:14,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2024-11-28 03:15:14,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-11-28 03:15:14,429 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:14,429 WARN L246 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:14,429 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2024-11-28 03:15:14,690 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:14,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1662 places, 1663 transitions, 7282 flow [2024-11-28 03:15:15,840 INFO L124 PetriNetUnfolderBase]: 222/2847 cut-off events. [2024-11-28 03:15:15,840 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2024-11-28 03:15:15,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 2847 events. 222/2847 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8144 event pairs, 0 based on Foata normal form. 0/2489 useless extension candidates. Maximal degree in co-relation 3924. Up to 88 conditions per place. [2024-11-28 03:15:15,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 1662 places, 1663 transitions, 7282 flow [2024-11-28 03:15:15,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 471 places, 386 transitions, 2753 flow [2024-11-28 03:15:15,908 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:15,908 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:15,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-28 03:15:15,909 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:15,909 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:15,909 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:15,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:15,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:15,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-28 03:15:15,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash -175426650, now seen corresponding path program 1 times [2024-11-28 03:15:15,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:15,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460937394] [2024-11-28 03:15:15,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:15,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:15,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:15,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460937394] [2024-11-28 03:15:15,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460937394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:15,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:15,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:15,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826371230] [2024-11-28 03:15:15,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:15,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:15,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:15,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:15,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:16,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1349 out of 1663 [2024-11-28 03:15:16,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 386 transitions, 2753 flow. Second operand has 3 states, 3 states have (on average 1350.3333333333333) internal successors, (4051), 3 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:16,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:16,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1349 of 1663 [2024-11-28 03:15:16,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:17,187 INFO L124 PetriNetUnfolderBase]: 89/2185 cut-off events. [2024-11-28 03:15:17,187 INFO L125 PetriNetUnfolderBase]: For 15137/15137 co-relation queries the response was YES. [2024-11-28 03:15:17,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3623 conditions, 2185 events. 89/2185 cut-off events. For 15137/15137 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6037 event pairs, 44 based on Foata normal form. 89/2093 useless extension candidates. Maximal degree in co-relation 3474. Up to 314 conditions per place. [2024-11-28 03:15:17,229 INFO L140 encePairwiseOnDemand]: 1657/1663 looper letters, 53 selfloop transitions, 2 changer transitions 1/382 dead transitions. [2024-11-28 03:15:17,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 382 transitions, 2855 flow [2024-11-28 03:15:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4106 transitions. [2024-11-28 03:15:17,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8230106233714172 [2024-11-28 03:15:17,232 INFO L175 Difference]: Start difference. First operand has 471 places, 386 transitions, 2753 flow. Second operand 3 states and 4106 transitions. [2024-11-28 03:15:17,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 382 transitions, 2855 flow [2024-11-28 03:15:17,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 382 transitions, 1132 flow, removed 861 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:17,266 INFO L231 Difference]: Finished difference. Result has 471 places, 381 transitions, 1024 flow [2024-11-28 03:15:17,267 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1663, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1024, PETRI_PLACES=471, PETRI_TRANSITIONS=381} [2024-11-28 03:15:17,267 INFO L279 CegarLoopForPetriNet]: 471 programPoint places, 0 predicate places. [2024-11-28 03:15:17,267 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 381 transitions, 1024 flow [2024-11-28 03:15:17,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1350.3333333333333) internal successors, (4051), 3 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:17,268 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:17,268 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:17,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-11-28 03:15:17,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-28 03:15:17,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:17,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1443643726, now seen corresponding path program 1 times [2024-11-28 03:15:17,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:17,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056951539] [2024-11-28 03:15:17,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:17,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:17,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:17,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056951539] [2024-11-28 03:15:17,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056951539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:17,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:17,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:17,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971635677] [2024-11-28 03:15:17,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:17,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:17,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:17,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:17,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:17,473 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1261 out of 1663 [2024-11-28 03:15:17,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 381 transitions, 1024 flow. Second operand has 3 states, 3 states have (on average 1262.0) internal successors, (3786), 3 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:17,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:17,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1261 of 1663 [2024-11-28 03:15:17,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:18,426 INFO L124 PetriNetUnfolderBase]: 45/1961 cut-off events. [2024-11-28 03:15:18,426 INFO L125 PetriNetUnfolderBase]: For 1031/1031 co-relation queries the response was YES. [2024-11-28 03:15:18,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2451 conditions, 1961 events. 45/1961 cut-off events. For 1031/1031 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4421 event pairs, 0 based on Foata normal form. 44/1916 useless extension candidates. Maximal degree in co-relation 2384. Up to 225 conditions per place. [2024-11-28 03:15:18,456 INFO L140 encePairwiseOnDemand]: 1657/1663 looper letters, 51 selfloop transitions, 1 changer transitions 24/376 dead transitions. [2024-11-28 03:15:18,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 376 transitions, 1122 flow [2024-11-28 03:15:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:18,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:18,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3842 transitions. [2024-11-28 03:15:18,460 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7700942072559631 [2024-11-28 03:15:18,460 INFO L175 Difference]: Start difference. First operand has 471 places, 381 transitions, 1024 flow. Second operand 3 states and 3842 transitions. [2024-11-28 03:15:18,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 376 transitions, 1122 flow [2024-11-28 03:15:18,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 376 transitions, 1118 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:18,465 INFO L231 Difference]: Finished difference. Result has 465 places, 352 transitions, 962 flow [2024-11-28 03:15:18,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1663, PETRI_DIFFERENCE_MINUEND_FLOW=1010, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=962, PETRI_PLACES=465, PETRI_TRANSITIONS=352} [2024-11-28 03:15:18,466 INFO L279 CegarLoopForPetriNet]: 471 programPoint places, -6 predicate places. [2024-11-28 03:15:18,466 INFO L471 AbstractCegarLoop]: Abstraction has has 465 places, 352 transitions, 962 flow [2024-11-28 03:15:18,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1262.0) internal successors, (3786), 3 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:18,467 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:18,467 INFO L206 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:18,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2024-11-28 03:15:18,467 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-28 03:15:18,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:18,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1982192469, now seen corresponding path program 1 times [2024-11-28 03:15:18,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:18,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54450528] [2024-11-28 03:15:18,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:18,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:18,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:18,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54450528] [2024-11-28 03:15:18,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54450528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:18,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:18,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:18,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245931407] [2024-11-28 03:15:18,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:18,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:18,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:18,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:18,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:18,916 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1390 out of 1663 [2024-11-28 03:15:18,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 352 transitions, 962 flow. Second operand has 5 states, 5 states have (on average 1400.6) internal successors, (7003), 5 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:18,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:18,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1390 of 1663 [2024-11-28 03:15:18,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:19,354 INFO L124 PetriNetUnfolderBase]: 0/918 cut-off events. [2024-11-28 03:15:19,354 INFO L125 PetriNetUnfolderBase]: For 1030/1030 co-relation queries the response was YES. [2024-11-28 03:15:19,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 918 events. 0/918 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 543 event pairs, 0 based on Foata normal form. 1/918 useless extension candidates. Maximal degree in co-relation 0. Up to 137 conditions per place. [2024-11-28 03:15:19,355 INFO L140 encePairwiseOnDemand]: 1658/1663 looper letters, 51 selfloop transitions, 2 changer transitions 3/354 dead transitions. [2024-11-28 03:15:19,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 354 transitions, 1078 flow [2024-11-28 03:15:19,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:19,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:19,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7007 transitions. [2024-11-28 03:15:19,360 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.842693926638605 [2024-11-28 03:15:19,360 INFO L175 Difference]: Start difference. First operand has 465 places, 352 transitions, 962 flow. Second operand 5 states and 7007 transitions. [2024-11-28 03:15:19,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 354 transitions, 1078 flow [2024-11-28 03:15:19,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 354 transitions, 1077 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:19,365 INFO L231 Difference]: Finished difference. Result has 445 places, 351 transitions, 967 flow [2024-11-28 03:15:19,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1663, PETRI_DIFFERENCE_MINUEND_FLOW=961, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=967, PETRI_PLACES=445, PETRI_TRANSITIONS=351} [2024-11-28 03:15:19,365 INFO L279 CegarLoopForPetriNet]: 471 programPoint places, -26 predicate places. [2024-11-28 03:15:19,366 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 351 transitions, 967 flow [2024-11-28 03:15:19,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1400.6) internal successors, (7003), 5 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:19,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:19,367 INFO L206 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:19,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2024-11-28 03:15:19,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-28 03:15:19,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:19,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2063838848, now seen corresponding path program 1 times [2024-11-28 03:15:19,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:19,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238261935] [2024-11-28 03:15:19,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:19,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:19,476 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:20,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:20,185 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:20,187 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-11-28 03:15:20,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2024-11-28 03:15:20,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2024-11-28 03:15:20,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2024-11-28 03:15:20,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2024-11-28 03:15:20,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2024-11-28 03:15:20,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2024-11-28 03:15:20,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2024-11-28 03:15:20,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2024-11-28 03:15:20,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2024-11-28 03:15:20,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2024-11-28 03:15:20,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2024-11-28 03:15:20,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2024-11-28 03:15:20,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2024-11-28 03:15:20,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2024-11-28 03:15:20,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2024-11-28 03:15:20,192 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:20,194 WARN L246 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:20,194 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2024-11-28 03:15:20,503 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:20,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1699 places, 1700 transitions, 7536 flow [2024-11-28 03:15:21,988 INFO L124 PetriNetUnfolderBase]: 227/2911 cut-off events. [2024-11-28 03:15:21,988 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2024-11-28 03:15:22,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4124 conditions, 2911 events. 227/2911 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8292 event pairs, 0 based on Foata normal form. 0/2545 useless extension candidates. Maximal degree in co-relation 4035. Up to 90 conditions per place. [2024-11-28 03:15:22,046 INFO L82 GeneralOperation]: Start removeDead. Operand has 1699 places, 1700 transitions, 7536 flow [2024-11-28 03:15:22,054 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 480 places, 393 transitions, 2857 flow [2024-11-28 03:15:22,054 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:22,055 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:22,055 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-11-28 03:15:22,056 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:22,056 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:22,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:22,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:22,056 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:22,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-28 03:15:22,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:22,057 INFO L85 PathProgramCache]: Analyzing trace with hash -797288538, now seen corresponding path program 1 times [2024-11-28 03:15:22,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:22,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479417385] [2024-11-28 03:15:22,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:22,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:22,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:22,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:22,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479417385] [2024-11-28 03:15:22,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479417385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:22,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:22,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:22,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547662242] [2024-11-28 03:15:22,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:22,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:22,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:22,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:22,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:22,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1379 out of 1700 [2024-11-28 03:15:22,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 393 transitions, 2857 flow. Second operand has 3 states, 3 states have (on average 1380.3333333333333) internal successors, (4141), 3 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:22,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:22,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1379 of 1700 [2024-11-28 03:15:22,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:23,349 INFO L124 PetriNetUnfolderBase]: 91/2234 cut-off events. [2024-11-28 03:15:23,349 INFO L125 PetriNetUnfolderBase]: For 16171/16171 co-relation queries the response was YES. [2024-11-28 03:15:23,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3727 conditions, 2234 events. 91/2234 cut-off events. For 16171/16171 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5940 event pairs, 45 based on Foata normal form. 46/2095 useless extension candidates. Maximal degree in co-relation 3577. Up to 321 conditions per place. [2024-11-28 03:15:23,392 INFO L140 encePairwiseOnDemand]: 1694/1700 looper letters, 54 selfloop transitions, 2 changer transitions 1/389 dead transitions. [2024-11-28 03:15:23,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 389 transitions, 2961 flow [2024-11-28 03:15:23,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:23,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:23,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4197 transitions. [2024-11-28 03:15:23,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8229411764705883 [2024-11-28 03:15:23,395 INFO L175 Difference]: Start difference. First operand has 480 places, 393 transitions, 2857 flow. Second operand 3 states and 4197 transitions. [2024-11-28 03:15:23,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 389 transitions, 2961 flow [2024-11-28 03:15:23,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 389 transitions, 1154 flow, removed 903 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:23,428 INFO L231 Difference]: Finished difference. Result has 480 places, 388 transitions, 1044 flow [2024-11-28 03:15:23,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1700, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1044, PETRI_PLACES=480, PETRI_TRANSITIONS=388} [2024-11-28 03:15:23,428 INFO L279 CegarLoopForPetriNet]: 480 programPoint places, 0 predicate places. [2024-11-28 03:15:23,428 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 388 transitions, 1044 flow [2024-11-28 03:15:23,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1380.3333333333333) internal successors, (4141), 3 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:23,429 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:23,429 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:23,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2024-11-28 03:15:23,429 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-28 03:15:23,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:23,429 INFO L85 PathProgramCache]: Analyzing trace with hash 535293518, now seen corresponding path program 1 times [2024-11-28 03:15:23,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:23,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236654534] [2024-11-28 03:15:23,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:23,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:23,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:23,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236654534] [2024-11-28 03:15:23,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236654534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:23,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:23,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:23,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179486286] [2024-11-28 03:15:23,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:23,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:23,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:23,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:23,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:23,669 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1289 out of 1700 [2024-11-28 03:15:23,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 388 transitions, 1044 flow. Second operand has 3 states, 3 states have (on average 1290.0) internal successors, (3870), 3 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:23,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:23,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1289 of 1700 [2024-11-28 03:15:23,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:24,548 INFO L124 PetriNetUnfolderBase]: 46/2005 cut-off events. [2024-11-28 03:15:24,549 INFO L125 PetriNetUnfolderBase]: For 1077/1077 co-relation queries the response was YES. [2024-11-28 03:15:24,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 2005 events. 46/2005 cut-off events. For 1077/1077 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4434 event pairs, 0 based on Foata normal form. 45/1959 useless extension candidates. Maximal degree in co-relation 2438. Up to 230 conditions per place. [2024-11-28 03:15:24,576 INFO L140 encePairwiseOnDemand]: 1694/1700 looper letters, 52 selfloop transitions, 1 changer transitions 24/383 dead transitions. [2024-11-28 03:15:24,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 383 transitions, 1144 flow [2024-11-28 03:15:24,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3927 transitions. [2024-11-28 03:15:24,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.77 [2024-11-28 03:15:24,579 INFO L175 Difference]: Start difference. First operand has 480 places, 388 transitions, 1044 flow. Second operand 3 states and 3927 transitions. [2024-11-28 03:15:24,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 383 transitions, 1144 flow [2024-11-28 03:15:24,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 383 transitions, 1140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:24,584 INFO L231 Difference]: Finished difference. Result has 474 places, 359 transitions, 982 flow [2024-11-28 03:15:24,585 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1700, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=982, PETRI_PLACES=474, PETRI_TRANSITIONS=359} [2024-11-28 03:15:24,585 INFO L279 CegarLoopForPetriNet]: 480 programPoint places, -6 predicate places. [2024-11-28 03:15:24,585 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 359 transitions, 982 flow [2024-11-28 03:15:24,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1290.0) internal successors, (3870), 3 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:24,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:24,586 INFO L206 CegarLoopForPetriNet]: trace histogram [45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:24,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2024-11-28 03:15:24,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-28 03:15:24,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:24,591 INFO L85 PathProgramCache]: Analyzing trace with hash 918885350, now seen corresponding path program 1 times [2024-11-28 03:15:24,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:24,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713359023] [2024-11-28 03:15:24,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:24,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:24,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:24,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:24,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713359023] [2024-11-28 03:15:24,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713359023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:24,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:24,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:24,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254387704] [2024-11-28 03:15:24,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:24,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:24,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:24,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:24,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:25,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1421 out of 1700 [2024-11-28 03:15:25,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 359 transitions, 982 flow. Second operand has 5 states, 5 states have (on average 1431.8) internal successors, (7159), 5 states have internal predecessors, (7159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:25,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:25,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1421 of 1700 [2024-11-28 03:15:25,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:25,823 INFO L124 PetriNetUnfolderBase]: 0/938 cut-off events. [2024-11-28 03:15:25,823 INFO L125 PetriNetUnfolderBase]: For 1076/1076 co-relation queries the response was YES. [2024-11-28 03:15:25,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 938 events. 0/938 cut-off events. For 1076/1076 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 556 event pairs, 0 based on Foata normal form. 1/938 useless extension candidates. Maximal degree in co-relation 0. Up to 140 conditions per place. [2024-11-28 03:15:25,825 INFO L140 encePairwiseOnDemand]: 1695/1700 looper letters, 52 selfloop transitions, 2 changer transitions 3/361 dead transitions. [2024-11-28 03:15:25,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 361 transitions, 1100 flow [2024-11-28 03:15:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7163 transitions. [2024-11-28 03:15:25,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8427058823529412 [2024-11-28 03:15:25,831 INFO L175 Difference]: Start difference. First operand has 474 places, 359 transitions, 982 flow. Second operand 5 states and 7163 transitions. [2024-11-28 03:15:25,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 361 transitions, 1100 flow [2024-11-28 03:15:25,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 361 transitions, 1099 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:25,838 INFO L231 Difference]: Finished difference. Result has 454 places, 358 transitions, 987 flow [2024-11-28 03:15:25,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1700, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=987, PETRI_PLACES=454, PETRI_TRANSITIONS=358} [2024-11-28 03:15:25,838 INFO L279 CegarLoopForPetriNet]: 480 programPoint places, -26 predicate places. [2024-11-28 03:15:25,838 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 358 transitions, 987 flow [2024-11-28 03:15:25,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1431.8) internal successors, (7159), 5 states have internal predecessors, (7159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:25,840 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:25,840 INFO L206 CegarLoopForPetriNet]: trace histogram [45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:25,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2024-11-28 03:15:25,840 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-28 03:15:25,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:25,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1189662121, now seen corresponding path program 1 times [2024-11-28 03:15:25,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:25,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161919819] [2024-11-28 03:15:25,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:25,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:26,016 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:26,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:26,759 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:26,759 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 52 remaining) [2024-11-28 03:15:26,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2024-11-28 03:15:26,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2024-11-28 03:15:26,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2024-11-28 03:15:26,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2024-11-28 03:15:26,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2024-11-28 03:15:26,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2024-11-28 03:15:26,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2024-11-28 03:15:26,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2024-11-28 03:15:26,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2024-11-28 03:15:26,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2024-11-28 03:15:26,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2024-11-28 03:15:26,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2024-11-28 03:15:26,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2024-11-28 03:15:26,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2024-11-28 03:15:26,763 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:26,764 WARN L246 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:26,764 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2024-11-28 03:15:27,039 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:27,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1736 places, 1737 transitions, 7794 flow [2024-11-28 03:15:28,850 INFO L124 PetriNetUnfolderBase]: 232/2975 cut-off events. [2024-11-28 03:15:28,850 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2024-11-28 03:15:28,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4238 conditions, 2975 events. 232/2975 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8615 event pairs, 0 based on Foata normal form. 0/2601 useless extension candidates. Maximal degree in co-relation 4147. Up to 92 conditions per place. [2024-11-28 03:15:28,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 1736 places, 1737 transitions, 7794 flow [2024-11-28 03:15:28,928 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 489 places, 400 transitions, 2963 flow [2024-11-28 03:15:28,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:28,929 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:28,929 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-11-28 03:15:28,931 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:28,931 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:28,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:28,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:28,932 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:28,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-28 03:15:28,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:28,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1468055386, now seen corresponding path program 1 times [2024-11-28 03:15:28,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:28,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497635287] [2024-11-28 03:15:28,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:28,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:29,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:29,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497635287] [2024-11-28 03:15:29,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497635287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:29,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:29,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:29,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805105536] [2024-11-28 03:15:29,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:29,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:29,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:29,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:29,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:29,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1409 out of 1737 [2024-11-28 03:15:29,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 400 transitions, 2963 flow. Second operand has 3 states, 3 states have (on average 1410.3333333333333) internal successors, (4231), 3 states have internal predecessors, (4231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:29,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:29,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1409 of 1737 [2024-11-28 03:15:29,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:30,357 INFO L124 PetriNetUnfolderBase]: 93/2283 cut-off events. [2024-11-28 03:15:30,358 INFO L125 PetriNetUnfolderBase]: For 17251/17251 co-relation queries the response was YES. [2024-11-28 03:15:30,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3832 conditions, 2283 events. 93/2283 cut-off events. For 17251/17251 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6521 event pairs, 46 based on Foata normal form. 93/2187 useless extension candidates. Maximal degree in co-relation 3681. Up to 328 conditions per place. [2024-11-28 03:15:30,403 INFO L140 encePairwiseOnDemand]: 1731/1737 looper letters, 55 selfloop transitions, 2 changer transitions 1/396 dead transitions. [2024-11-28 03:15:30,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 396 transitions, 3069 flow [2024-11-28 03:15:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:30,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4288 transitions. [2024-11-28 03:15:30,407 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8228746881596622 [2024-11-28 03:15:30,407 INFO L175 Difference]: Start difference. First operand has 489 places, 400 transitions, 2963 flow. Second operand 3 states and 4288 transitions. [2024-11-28 03:15:30,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 396 transitions, 3069 flow [2024-11-28 03:15:30,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 396 transitions, 1176 flow, removed 946 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:30,445 INFO L231 Difference]: Finished difference. Result has 489 places, 395 transitions, 1064 flow [2024-11-28 03:15:30,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1737, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1064, PETRI_PLACES=489, PETRI_TRANSITIONS=395} [2024-11-28 03:15:30,446 INFO L279 CegarLoopForPetriNet]: 489 programPoint places, 0 predicate places. [2024-11-28 03:15:30,446 INFO L471 AbstractCegarLoop]: Abstraction has has 489 places, 395 transitions, 1064 flow [2024-11-28 03:15:30,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1410.3333333333333) internal successors, (4231), 3 states have internal predecessors, (4231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:30,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:30,447 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:30,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2024-11-28 03:15:30,447 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-28 03:15:30,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:30,448 INFO L85 PathProgramCache]: Analyzing trace with hash 746602894, now seen corresponding path program 1 times [2024-11-28 03:15:30,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:30,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066972628] [2024-11-28 03:15:30,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:30,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:30,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:30,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066972628] [2024-11-28 03:15:30,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066972628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:30,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:30,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:30,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266386589] [2024-11-28 03:15:30,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:30,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:30,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:30,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:30,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:30,685 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1317 out of 1737 [2024-11-28 03:15:30,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 395 transitions, 1064 flow. Second operand has 3 states, 3 states have (on average 1318.0) internal successors, (3954), 3 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:30,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:30,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1317 of 1737 [2024-11-28 03:15:30,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:31,637 INFO L124 PetriNetUnfolderBase]: 47/2049 cut-off events. [2024-11-28 03:15:31,637 INFO L125 PetriNetUnfolderBase]: For 1124/1124 co-relation queries the response was YES. [2024-11-28 03:15:31,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2561 conditions, 2049 events. 47/2049 cut-off events. For 1124/1124 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4851 event pairs, 0 based on Foata normal form. 46/2002 useless extension candidates. Maximal degree in co-relation 2492. Up to 235 conditions per place. [2024-11-28 03:15:31,673 INFO L140 encePairwiseOnDemand]: 1731/1737 looper letters, 53 selfloop transitions, 1 changer transitions 24/390 dead transitions. [2024-11-28 03:15:31,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 390 transitions, 1166 flow [2024-11-28 03:15:31,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:31,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4012 transitions. [2024-11-28 03:15:31,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7699098061792362 [2024-11-28 03:15:31,677 INFO L175 Difference]: Start difference. First operand has 489 places, 395 transitions, 1064 flow. Second operand 3 states and 4012 transitions. [2024-11-28 03:15:31,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 390 transitions, 1166 flow [2024-11-28 03:15:31,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 390 transitions, 1162 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:31,683 INFO L231 Difference]: Finished difference. Result has 483 places, 366 transitions, 1002 flow [2024-11-28 03:15:31,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1737, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1002, PETRI_PLACES=483, PETRI_TRANSITIONS=366} [2024-11-28 03:15:31,684 INFO L279 CegarLoopForPetriNet]: 489 programPoint places, -6 predicate places. [2024-11-28 03:15:31,684 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 366 transitions, 1002 flow [2024-11-28 03:15:31,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1318.0) internal successors, (3954), 3 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:31,684 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:31,684 INFO L206 CegarLoopForPetriNet]: trace histogram [46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:31,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2024-11-28 03:15:31,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-28 03:15:31,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:31,690 INFO L85 PathProgramCache]: Analyzing trace with hash -832307665, now seen corresponding path program 1 times [2024-11-28 03:15:31,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:31,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326232693] [2024-11-28 03:15:31,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:31,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:31,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:31,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326232693] [2024-11-28 03:15:31,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326232693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:31,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:31,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750450195] [2024-11-28 03:15:31,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:31,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:31,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:31,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:31,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:32,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1452 out of 1737 [2024-11-28 03:15:32,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 366 transitions, 1002 flow. Second operand has 5 states, 5 states have (on average 1463.0) internal successors, (7315), 5 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:32,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:32,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1452 of 1737 [2024-11-28 03:15:32,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:32,654 INFO L124 PetriNetUnfolderBase]: 0/958 cut-off events. [2024-11-28 03:15:32,654 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-28 03:15:32,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 958 events. 0/958 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 567 event pairs, 0 based on Foata normal form. 1/958 useless extension candidates. Maximal degree in co-relation 0. Up to 143 conditions per place. [2024-11-28 03:15:32,655 INFO L140 encePairwiseOnDemand]: 1732/1737 looper letters, 53 selfloop transitions, 2 changer transitions 3/368 dead transitions. [2024-11-28 03:15:32,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 368 transitions, 1122 flow [2024-11-28 03:15:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:32,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:32,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7319 transitions. [2024-11-28 03:15:32,659 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8427173287276915 [2024-11-28 03:15:32,660 INFO L175 Difference]: Start difference. First operand has 483 places, 366 transitions, 1002 flow. Second operand 5 states and 7319 transitions. [2024-11-28 03:15:32,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 368 transitions, 1122 flow [2024-11-28 03:15:32,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 368 transitions, 1121 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:32,665 INFO L231 Difference]: Finished difference. Result has 463 places, 365 transitions, 1007 flow [2024-11-28 03:15:32,665 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1737, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1007, PETRI_PLACES=463, PETRI_TRANSITIONS=365} [2024-11-28 03:15:32,666 INFO L279 CegarLoopForPetriNet]: 489 programPoint places, -26 predicate places. [2024-11-28 03:15:32,666 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 365 transitions, 1007 flow [2024-11-28 03:15:32,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1463.0) internal successors, (7315), 5 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:32,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:32,667 INFO L206 CegarLoopForPetriNet]: trace histogram [46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:32,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2024-11-28 03:15:32,667 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-28 03:15:32,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:32,672 INFO L85 PathProgramCache]: Analyzing trace with hash -947581929, now seen corresponding path program 1 times [2024-11-28 03:15:32,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:32,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041697168] [2024-11-28 03:15:32,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:32,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:32,783 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:33,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:33,284 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:33,284 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-11-28 03:15:33,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2024-11-28 03:15:33,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2024-11-28 03:15:33,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2024-11-28 03:15:33,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2024-11-28 03:15:33,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2024-11-28 03:15:33,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2024-11-28 03:15:33,288 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:33,288 WARN L246 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:33,288 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2024-11-28 03:15:33,526 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:33,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1773 places, 1774 transitions, 8056 flow [2024-11-28 03:15:34,825 INFO L124 PetriNetUnfolderBase]: 237/3039 cut-off events. [2024-11-28 03:15:34,825 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2024-11-28 03:15:34,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4353 conditions, 3039 events. 237/3039 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8793 event pairs, 0 based on Foata normal form. 0/2657 useless extension candidates. Maximal degree in co-relation 4260. Up to 94 conditions per place. [2024-11-28 03:15:34,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 1773 places, 1774 transitions, 8056 flow [2024-11-28 03:15:34,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 407 transitions, 3071 flow [2024-11-28 03:15:34,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:34,906 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:34,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2024-11-28 03:15:34,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:34,907 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:34,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:34,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:34,907 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:34,908 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-28 03:15:34,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:34,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2107240102, now seen corresponding path program 1 times [2024-11-28 03:15:34,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:34,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53648265] [2024-11-28 03:15:34,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:34,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:34,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:34,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:34,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53648265] [2024-11-28 03:15:34,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53648265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:34,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:34,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:34,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53784649] [2024-11-28 03:15:34,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:34,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:34,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:34,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:34,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:35,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1439 out of 1774 [2024-11-28 03:15:35,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 407 transitions, 3071 flow. Second operand has 3 states, 3 states have (on average 1440.3333333333333) internal successors, (4321), 3 states have internal predecessors, (4321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:35,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:35,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1439 of 1774 [2024-11-28 03:15:35,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:36,385 INFO L124 PetriNetUnfolderBase]: 95/2332 cut-off events. [2024-11-28 03:15:36,385 INFO L125 PetriNetUnfolderBase]: For 18378/18378 co-relation queries the response was YES. [2024-11-28 03:15:36,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3938 conditions, 2332 events. 95/2332 cut-off events. For 18378/18378 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6404 event pairs, 47 based on Foata normal form. 95/2234 useless extension candidates. Maximal degree in co-relation 3786. Up to 335 conditions per place. [2024-11-28 03:15:36,433 INFO L140 encePairwiseOnDemand]: 1768/1774 looper letters, 56 selfloop transitions, 2 changer transitions 1/403 dead transitions. [2024-11-28 03:15:36,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 403 transitions, 3179 flow [2024-11-28 03:15:36,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:36,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4379 transitions. [2024-11-28 03:15:36,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8228109733183014 [2024-11-28 03:15:36,437 INFO L175 Difference]: Start difference. First operand has 498 places, 407 transitions, 3071 flow. Second operand 3 states and 4379 transitions. [2024-11-28 03:15:36,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 403 transitions, 3179 flow [2024-11-28 03:15:36,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 403 transitions, 1198 flow, removed 990 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:36,487 INFO L231 Difference]: Finished difference. Result has 498 places, 402 transitions, 1084 flow [2024-11-28 03:15:36,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1774, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1084, PETRI_PLACES=498, PETRI_TRANSITIONS=402} [2024-11-28 03:15:36,488 INFO L279 CegarLoopForPetriNet]: 498 programPoint places, 0 predicate places. [2024-11-28 03:15:36,488 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 402 transitions, 1084 flow [2024-11-28 03:15:36,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1440.3333333333333) internal successors, (4321), 3 states have internal predecessors, (4321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:36,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:36,489 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:36,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2024-11-28 03:15:36,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-28 03:15:36,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:36,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2077571854, now seen corresponding path program 1 times [2024-11-28 03:15:36,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:36,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579418290] [2024-11-28 03:15:36,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:36,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:36,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:36,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579418290] [2024-11-28 03:15:36,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579418290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:36,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:36,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:36,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064887610] [2024-11-28 03:15:36,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:36,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:36,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:36,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:36,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:36,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1345 out of 1774 [2024-11-28 03:15:36,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 402 transitions, 1084 flow. Second operand has 3 states, 3 states have (on average 1346.0) internal successors, (4038), 3 states have internal predecessors, (4038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:36,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:36,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1345 of 1774 [2024-11-28 03:15:36,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:37,939 INFO L124 PetriNetUnfolderBase]: 48/2093 cut-off events. [2024-11-28 03:15:37,939 INFO L125 PetriNetUnfolderBase]: For 1172/1172 co-relation queries the response was YES. [2024-11-28 03:15:37,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2616 conditions, 2093 events. 48/2093 cut-off events. For 1172/1172 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4727 event pairs, 0 based on Foata normal form. 47/2045 useless extension candidates. Maximal degree in co-relation 2546. Up to 240 conditions per place. [2024-11-28 03:15:37,957 INFO L140 encePairwiseOnDemand]: 1768/1774 looper letters, 54 selfloop transitions, 1 changer transitions 24/397 dead transitions. [2024-11-28 03:15:37,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 397 transitions, 1188 flow [2024-11-28 03:15:37,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4097 transitions. [2024-11-28 03:15:37,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7698233746711762 [2024-11-28 03:15:37,960 INFO L175 Difference]: Start difference. First operand has 498 places, 402 transitions, 1084 flow. Second operand 3 states and 4097 transitions. [2024-11-28 03:15:37,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 397 transitions, 1188 flow [2024-11-28 03:15:37,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 397 transitions, 1184 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:37,965 INFO L231 Difference]: Finished difference. Result has 492 places, 373 transitions, 1022 flow [2024-11-28 03:15:37,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1774, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1022, PETRI_PLACES=492, PETRI_TRANSITIONS=373} [2024-11-28 03:15:37,966 INFO L279 CegarLoopForPetriNet]: 498 programPoint places, -6 predicate places. [2024-11-28 03:15:37,966 INFO L471 AbstractCegarLoop]: Abstraction has has 492 places, 373 transitions, 1022 flow [2024-11-28 03:15:37,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1346.0) internal successors, (4038), 3 states have internal predecessors, (4038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:37,966 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:37,967 INFO L206 CegarLoopForPetriNet]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:37,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2024-11-28 03:15:37,967 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-28 03:15:37,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:37,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1356311642, now seen corresponding path program 1 times [2024-11-28 03:15:37,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:37,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252209590] [2024-11-28 03:15:37,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:38,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:38,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252209590] [2024-11-28 03:15:38,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252209590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:38,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:38,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:38,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807010035] [2024-11-28 03:15:38,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:38,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:38,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:38,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:38,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:38,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1483 out of 1774 [2024-11-28 03:15:38,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 373 transitions, 1022 flow. Second operand has 5 states, 5 states have (on average 1494.2) internal successors, (7471), 5 states have internal predecessors, (7471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:38,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:38,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1483 of 1774 [2024-11-28 03:15:38,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:39,077 INFO L124 PetriNetUnfolderBase]: 0/978 cut-off events. [2024-11-28 03:15:39,077 INFO L125 PetriNetUnfolderBase]: For 1171/1171 co-relation queries the response was YES. [2024-11-28 03:15:39,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 978 events. 0/978 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 579 event pairs, 0 based on Foata normal form. 1/978 useless extension candidates. Maximal degree in co-relation 0. Up to 146 conditions per place. [2024-11-28 03:15:39,079 INFO L140 encePairwiseOnDemand]: 1769/1774 looper letters, 54 selfloop transitions, 2 changer transitions 3/375 dead transitions. [2024-11-28 03:15:39,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 375 transitions, 1144 flow [2024-11-28 03:15:39,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:39,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7475 transitions. [2024-11-28 03:15:39,083 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.842728297632469 [2024-11-28 03:15:39,083 INFO L175 Difference]: Start difference. First operand has 492 places, 373 transitions, 1022 flow. Second operand 5 states and 7475 transitions. [2024-11-28 03:15:39,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 375 transitions, 1144 flow [2024-11-28 03:15:39,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 375 transitions, 1143 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:39,088 INFO L231 Difference]: Finished difference. Result has 472 places, 372 transitions, 1027 flow [2024-11-28 03:15:39,089 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1774, PETRI_DIFFERENCE_MINUEND_FLOW=1021, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1027, PETRI_PLACES=472, PETRI_TRANSITIONS=372} [2024-11-28 03:15:39,089 INFO L279 CegarLoopForPetriNet]: 498 programPoint places, -26 predicate places. [2024-11-28 03:15:39,089 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 372 transitions, 1027 flow [2024-11-28 03:15:39,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1494.2) internal successors, (7471), 5 states have internal predecessors, (7471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:39,090 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:39,090 INFO L206 CegarLoopForPetriNet]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:39,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2024-11-28 03:15:39,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-28 03:15:39,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash 889814304, now seen corresponding path program 1 times [2024-11-28 03:15:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:39,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862478744] [2024-11-28 03:15:39,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:39,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:39,212 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:39,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:39,896 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:39,896 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2024-11-28 03:15:39,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2024-11-28 03:15:39,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2024-11-28 03:15:39,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2024-11-28 03:15:39,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2024-11-28 03:15:39,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2024-11-28 03:15:39,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2024-11-28 03:15:39,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2024-11-28 03:15:39,900 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2024-11-28 03:15:39,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2024-11-28 03:15:39,900 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:39,900 WARN L246 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:39,900 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2024-11-28 03:15:40,140 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:40,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1810 places, 1811 transitions, 8322 flow [2024-11-28 03:15:41,509 INFO L124 PetriNetUnfolderBase]: 242/3103 cut-off events. [2024-11-28 03:15:41,509 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2024-11-28 03:15:41,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4469 conditions, 3103 events. 242/3103 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9015 event pairs, 0 based on Foata normal form. 0/2713 useless extension candidates. Maximal degree in co-relation 4374. Up to 96 conditions per place. [2024-11-28 03:15:41,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 1810 places, 1811 transitions, 8322 flow [2024-11-28 03:15:41,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 507 places, 414 transitions, 3181 flow [2024-11-28 03:15:41,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:41,600 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:41,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-28 03:15:41,602 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:41,602 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:41,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:41,602 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:41,603 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:41,603 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-28 03:15:41,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:41,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1338663334, now seen corresponding path program 1 times [2024-11-28 03:15:41,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:41,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53181889] [2024-11-28 03:15:41,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:41,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:41,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:41,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53181889] [2024-11-28 03:15:41,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53181889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:41,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:41,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:41,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051128082] [2024-11-28 03:15:41,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:41,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:41,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:41,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:41,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:41,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1469 out of 1811 [2024-11-28 03:15:41,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 414 transitions, 3181 flow. Second operand has 3 states, 3 states have (on average 1470.3333333333333) internal successors, (4411), 3 states have internal predecessors, (4411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:41,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:41,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1469 of 1811 [2024-11-28 03:15:41,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:43,161 INFO L124 PetriNetUnfolderBase]: 97/2381 cut-off events. [2024-11-28 03:15:43,161 INFO L125 PetriNetUnfolderBase]: For 19553/19553 co-relation queries the response was YES. [2024-11-28 03:15:43,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4045 conditions, 2381 events. 97/2381 cut-off events. For 19553/19553 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6306 event pairs, 48 based on Foata normal form. 49/2233 useless extension candidates. Maximal degree in co-relation 3892. Up to 342 conditions per place. [2024-11-28 03:15:43,197 INFO L140 encePairwiseOnDemand]: 1805/1811 looper letters, 57 selfloop transitions, 2 changer transitions 1/410 dead transitions. [2024-11-28 03:15:43,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 410 transitions, 3291 flow [2024-11-28 03:15:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4470 transitions. [2024-11-28 03:15:43,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8227498619547211 [2024-11-28 03:15:43,200 INFO L175 Difference]: Start difference. First operand has 507 places, 414 transitions, 3181 flow. Second operand 3 states and 4470 transitions. [2024-11-28 03:15:43,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 410 transitions, 3291 flow [2024-11-28 03:15:43,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 410 transitions, 1220 flow, removed 1035 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:43,240 INFO L231 Difference]: Finished difference. Result has 507 places, 409 transitions, 1104 flow [2024-11-28 03:15:43,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1811, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=507, PETRI_TRANSITIONS=409} [2024-11-28 03:15:43,241 INFO L279 CegarLoopForPetriNet]: 507 programPoint places, 0 predicate places. [2024-11-28 03:15:43,241 INFO L471 AbstractCegarLoop]: Abstraction has has 507 places, 409 transitions, 1104 flow [2024-11-28 03:15:43,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1470.3333333333333) internal successors, (4411), 3 states have internal predecessors, (4411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:43,241 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:43,241 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:43,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2024-11-28 03:15:43,242 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-28 03:15:43,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:43,242 INFO L85 PathProgramCache]: Analyzing trace with hash 233233102, now seen corresponding path program 1 times [2024-11-28 03:15:43,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:43,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289863236] [2024-11-28 03:15:43,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:43,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:43,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:43,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289863236] [2024-11-28 03:15:43,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289863236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:43,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:43,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:43,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269259572] [2024-11-28 03:15:43,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:43,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:43,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:43,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:43,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:43,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1373 out of 1811 [2024-11-28 03:15:43,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 409 transitions, 1104 flow. Second operand has 3 states, 3 states have (on average 1374.0) internal successors, (4122), 3 states have internal predecessors, (4122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:43,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:43,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1373 of 1811 [2024-11-28 03:15:43,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:44,886 INFO L124 PetriNetUnfolderBase]: 49/2137 cut-off events. [2024-11-28 03:15:44,886 INFO L125 PetriNetUnfolderBase]: For 1221/1221 co-relation queries the response was YES. [2024-11-28 03:15:44,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 2137 events. 49/2137 cut-off events. For 1221/1221 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4734 event pairs, 0 based on Foata normal form. 48/2088 useless extension candidates. Maximal degree in co-relation 2600. Up to 245 conditions per place. [2024-11-28 03:15:44,922 INFO L140 encePairwiseOnDemand]: 1805/1811 looper letters, 55 selfloop transitions, 1 changer transitions 24/404 dead transitions. [2024-11-28 03:15:44,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 404 transitions, 1210 flow [2024-11-28 03:15:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:44,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4182 transitions. [2024-11-28 03:15:44,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7697404748757593 [2024-11-28 03:15:44,928 INFO L175 Difference]: Start difference. First operand has 507 places, 409 transitions, 1104 flow. Second operand 3 states and 4182 transitions. [2024-11-28 03:15:44,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 404 transitions, 1210 flow [2024-11-28 03:15:44,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 404 transitions, 1206 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:44,935 INFO L231 Difference]: Finished difference. Result has 501 places, 380 transitions, 1042 flow [2024-11-28 03:15:44,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1811, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1042, PETRI_PLACES=501, PETRI_TRANSITIONS=380} [2024-11-28 03:15:44,936 INFO L279 CegarLoopForPetriNet]: 507 programPoint places, -6 predicate places. [2024-11-28 03:15:44,936 INFO L471 AbstractCegarLoop]: Abstraction has has 501 places, 380 transitions, 1042 flow [2024-11-28 03:15:44,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1374.0) internal successors, (4122), 3 states have internal predecessors, (4122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:44,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:44,937 INFO L206 CegarLoopForPetriNet]: trace histogram [48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:44,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2024-11-28 03:15:44,937 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-28 03:15:44,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:44,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1676706923, now seen corresponding path program 1 times [2024-11-28 03:15:44,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:44,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148967993] [2024-11-28 03:15:44,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:44,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:45,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:45,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148967993] [2024-11-28 03:15:45,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148967993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:45,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:45,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:45,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000885687] [2024-11-28 03:15:45,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:45,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:45,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:45,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:45,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:45,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1514 out of 1811 [2024-11-28 03:15:45,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 380 transitions, 1042 flow. Second operand has 5 states, 5 states have (on average 1525.4) internal successors, (7627), 5 states have internal predecessors, (7627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:45,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:45,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1514 of 1811 [2024-11-28 03:15:45,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:46,396 INFO L124 PetriNetUnfolderBase]: 0/998 cut-off events. [2024-11-28 03:15:46,396 INFO L125 PetriNetUnfolderBase]: For 1220/1220 co-relation queries the response was YES. [2024-11-28 03:15:46,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 998 events. 0/998 cut-off events. For 1220/1220 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 592 event pairs, 0 based on Foata normal form. 1/998 useless extension candidates. Maximal degree in co-relation 0. Up to 149 conditions per place. [2024-11-28 03:15:46,398 INFO L140 encePairwiseOnDemand]: 1806/1811 looper letters, 55 selfloop transitions, 2 changer transitions 3/382 dead transitions. [2024-11-28 03:15:46,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 382 transitions, 1166 flow [2024-11-28 03:15:46,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7631 transitions. [2024-11-28 03:15:46,407 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.842738818332413 [2024-11-28 03:15:46,407 INFO L175 Difference]: Start difference. First operand has 501 places, 380 transitions, 1042 flow. Second operand 5 states and 7631 transitions. [2024-11-28 03:15:46,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 382 transitions, 1166 flow [2024-11-28 03:15:46,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 382 transitions, 1165 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:46,415 INFO L231 Difference]: Finished difference. Result has 481 places, 379 transitions, 1047 flow [2024-11-28 03:15:46,415 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1811, PETRI_DIFFERENCE_MINUEND_FLOW=1041, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1047, PETRI_PLACES=481, PETRI_TRANSITIONS=379} [2024-11-28 03:15:46,415 INFO L279 CegarLoopForPetriNet]: 507 programPoint places, -26 predicate places. [2024-11-28 03:15:46,415 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 379 transitions, 1047 flow [2024-11-28 03:15:46,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1525.4) internal successors, (7627), 5 states have internal predecessors, (7627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:46,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:46,417 INFO L206 CegarLoopForPetriNet]: trace histogram [48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:46,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2024-11-28 03:15:46,417 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-28 03:15:46,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:46,425 INFO L85 PathProgramCache]: Analyzing trace with hash -757513262, now seen corresponding path program 1 times [2024-11-28 03:15:46,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:46,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588327458] [2024-11-28 03:15:46,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:46,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:46,622 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:47,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:47,243 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:47,243 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2024-11-28 03:15:47,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2024-11-28 03:15:47,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2024-11-28 03:15:47,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2024-11-28 03:15:47,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2024-11-28 03:15:47,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2024-11-28 03:15:47,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2024-11-28 03:15:47,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2024-11-28 03:15:47,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2024-11-28 03:15:47,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2024-11-28 03:15:47,247 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:47,247 WARN L246 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:47,247 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2024-11-28 03:15:47,528 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:47,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1847 places, 1848 transitions, 8592 flow [2024-11-28 03:15:49,146 INFO L124 PetriNetUnfolderBase]: 247/3167 cut-off events. [2024-11-28 03:15:49,146 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2024-11-28 03:15:49,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4586 conditions, 3167 events. 247/3167 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8960 event pairs, 0 based on Foata normal form. 0/2769 useless extension candidates. Maximal degree in co-relation 4489. Up to 98 conditions per place. [2024-11-28 03:15:49,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 1847 places, 1848 transitions, 8592 flow [2024-11-28 03:15:49,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 516 places, 421 transitions, 3293 flow [2024-11-28 03:15:49,233 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:49,233 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:49,233 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-28 03:15:49,236 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:49,236 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:49,236 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:49,236 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:49,236 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:49,236 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-28 03:15:49,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:49,236 INFO L85 PathProgramCache]: Analyzing trace with hash 521181606, now seen corresponding path program 1 times [2024-11-28 03:15:49,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:49,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77851804] [2024-11-28 03:15:49,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:49,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:49,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:49,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77851804] [2024-11-28 03:15:49,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77851804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:49,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:49,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:49,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422922023] [2024-11-28 03:15:49,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:49,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:49,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:49,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:49,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:49,584 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1499 out of 1848 [2024-11-28 03:15:49,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 421 transitions, 3293 flow. Second operand has 3 states, 3 states have (on average 1500.3333333333333) internal successors, (4501), 3 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:49,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:49,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1499 of 1848 [2024-11-28 03:15:49,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:51,149 INFO L124 PetriNetUnfolderBase]: 99/2430 cut-off events. [2024-11-28 03:15:51,150 INFO L125 PetriNetUnfolderBase]: For 20777/20777 co-relation queries the response was YES. [2024-11-28 03:15:51,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4153 conditions, 2430 events. 99/2430 cut-off events. For 20777/20777 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6455 event pairs, 49 based on Foata normal form. 50/2279 useless extension candidates. Maximal degree in co-relation 3999. Up to 349 conditions per place. [2024-11-28 03:15:51,203 INFO L140 encePairwiseOnDemand]: 1842/1848 looper letters, 58 selfloop transitions, 2 changer transitions 1/417 dead transitions. [2024-11-28 03:15:51,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 417 transitions, 3405 flow [2024-11-28 03:15:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4561 transitions. [2024-11-28 03:15:51,208 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8226911976911977 [2024-11-28 03:15:51,208 INFO L175 Difference]: Start difference. First operand has 516 places, 421 transitions, 3293 flow. Second operand 3 states and 4561 transitions. [2024-11-28 03:15:51,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 417 transitions, 3405 flow [2024-11-28 03:15:51,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 417 transitions, 1242 flow, removed 1081 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:51,275 INFO L231 Difference]: Finished difference. Result has 516 places, 416 transitions, 1124 flow [2024-11-28 03:15:51,275 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1124, PETRI_PLACES=516, PETRI_TRANSITIONS=416} [2024-11-28 03:15:51,276 INFO L279 CegarLoopForPetriNet]: 516 programPoint places, 0 predicate places. [2024-11-28 03:15:51,276 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 416 transitions, 1124 flow [2024-11-28 03:15:51,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1500.3333333333333) internal successors, (4501), 3 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:51,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:51,278 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:51,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2024-11-28 03:15:51,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-28 03:15:51,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:51,279 INFO L85 PathProgramCache]: Analyzing trace with hash -491446066, now seen corresponding path program 1 times [2024-11-28 03:15:51,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:51,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515499349] [2024-11-28 03:15:51,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:51,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:51,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:51,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515499349] [2024-11-28 03:15:51,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515499349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:51,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:51,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:51,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749501483] [2024-11-28 03:15:51,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:51,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:51,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:51,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:51,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:51,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1401 out of 1848 [2024-11-28 03:15:51,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 416 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 1402.0) internal successors, (4206), 3 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:51,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:51,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1401 of 1848 [2024-11-28 03:15:51,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:52,807 INFO L124 PetriNetUnfolderBase]: 50/2181 cut-off events. [2024-11-28 03:15:52,807 INFO L125 PetriNetUnfolderBase]: For 1271/1271 co-relation queries the response was YES. [2024-11-28 03:15:52,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2726 conditions, 2181 events. 50/2181 cut-off events. For 1271/1271 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4833 event pairs, 0 based on Foata normal form. 49/2131 useless extension candidates. Maximal degree in co-relation 2654. Up to 250 conditions per place. [2024-11-28 03:15:52,847 INFO L140 encePairwiseOnDemand]: 1842/1848 looper letters, 56 selfloop transitions, 1 changer transitions 24/411 dead transitions. [2024-11-28 03:15:52,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 411 transitions, 1232 flow [2024-11-28 03:15:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4267 transitions. [2024-11-28 03:15:52,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7696608946608947 [2024-11-28 03:15:52,851 INFO L175 Difference]: Start difference. First operand has 516 places, 416 transitions, 1124 flow. Second operand 3 states and 4267 transitions. [2024-11-28 03:15:52,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 411 transitions, 1232 flow [2024-11-28 03:15:52,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 411 transitions, 1228 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:52,860 INFO L231 Difference]: Finished difference. Result has 510 places, 387 transitions, 1062 flow [2024-11-28 03:15:52,861 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1062, PETRI_PLACES=510, PETRI_TRANSITIONS=387} [2024-11-28 03:15:52,861 INFO L279 CegarLoopForPetriNet]: 516 programPoint places, -6 predicate places. [2024-11-28 03:15:52,861 INFO L471 AbstractCegarLoop]: Abstraction has has 510 places, 387 transitions, 1062 flow [2024-11-28 03:15:52,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1402.0) internal successors, (4206), 3 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:52,863 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:52,864 INFO L206 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:52,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2024-11-28 03:15:52,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-28 03:15:52,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:52,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1866465122, now seen corresponding path program 1 times [2024-11-28 03:15:52,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:52,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185529234] [2024-11-28 03:15:52,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:52,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:53,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:53,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185529234] [2024-11-28 03:15:53,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185529234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:53,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:53,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:15:53,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956760997] [2024-11-28 03:15:53,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:53,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:15:53,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:53,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:15:53,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:15:53,529 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1545 out of 1848 [2024-11-28 03:15:53,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 387 transitions, 1062 flow. Second operand has 5 states, 5 states have (on average 1556.6) internal successors, (7783), 5 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:53,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:53,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1545 of 1848 [2024-11-28 03:15:53,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:54,082 INFO L124 PetriNetUnfolderBase]: 0/1018 cut-off events. [2024-11-28 03:15:54,082 INFO L125 PetriNetUnfolderBase]: For 1270/1270 co-relation queries the response was YES. [2024-11-28 03:15:54,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1369 conditions, 1018 events. 0/1018 cut-off events. For 1270/1270 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 603 event pairs, 0 based on Foata normal form. 1/1018 useless extension candidates. Maximal degree in co-relation 0. Up to 152 conditions per place. [2024-11-28 03:15:54,083 INFO L140 encePairwiseOnDemand]: 1843/1848 looper letters, 56 selfloop transitions, 2 changer transitions 3/389 dead transitions. [2024-11-28 03:15:54,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 389 transitions, 1188 flow [2024-11-28 03:15:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:15:54,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:15:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7787 transitions. [2024-11-28 03:15:54,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8427489177489178 [2024-11-28 03:15:54,089 INFO L175 Difference]: Start difference. First operand has 510 places, 387 transitions, 1062 flow. Second operand 5 states and 7787 transitions. [2024-11-28 03:15:54,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 389 transitions, 1188 flow [2024-11-28 03:15:54,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 389 transitions, 1187 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:54,098 INFO L231 Difference]: Finished difference. Result has 490 places, 386 transitions, 1067 flow [2024-11-28 03:15:54,099 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1067, PETRI_PLACES=490, PETRI_TRANSITIONS=386} [2024-11-28 03:15:54,099 INFO L279 CegarLoopForPetriNet]: 516 programPoint places, -26 predicate places. [2024-11-28 03:15:54,099 INFO L471 AbstractCegarLoop]: Abstraction has has 490 places, 386 transitions, 1067 flow [2024-11-28 03:15:54,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1556.6) internal successors, (7783), 5 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:54,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:54,102 INFO L206 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:54,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2024-11-28 03:15:54,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-28 03:15:54,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash -506839411, now seen corresponding path program 1 times [2024-11-28 03:15:54,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:54,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109672114] [2024-11-28 03:15:54,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:54,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:54,307 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:15:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:15:54,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:15:54,755 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:15:54,755 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2024-11-28 03:15:54,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2024-11-28 03:15:54,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2024-11-28 03:15:54,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2024-11-28 03:15:54,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2024-11-28 03:15:54,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2024-11-28 03:15:54,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2024-11-28 03:15:54,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2024-11-28 03:15:54,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2024-11-28 03:15:54,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2024-11-28 03:15:54,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2024-11-28 03:15:54,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2024-11-28 03:15:54,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2024-11-28 03:15:54,759 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:15:54,760 WARN L246 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:15:54,760 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2024-11-28 03:15:55,019 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:15:55,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1884 places, 1885 transitions, 8866 flow [2024-11-28 03:15:56,505 INFO L124 PetriNetUnfolderBase]: 252/3231 cut-off events. [2024-11-28 03:15:56,505 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2024-11-28 03:15:56,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 3231 events. 252/3231 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9289 event pairs, 0 based on Foata normal form. 0/2825 useless extension candidates. Maximal degree in co-relation 4605. Up to 100 conditions per place. [2024-11-28 03:15:56,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 1884 places, 1885 transitions, 8866 flow [2024-11-28 03:15:56,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 525 places, 428 transitions, 3407 flow [2024-11-28 03:15:56,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:15:56,597 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:15:56,597 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-11-28 03:15:56,598 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:15:56,598 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:15:56,599 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:15:56,599 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:56,599 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:56,599 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-28 03:15:56,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash -345205082, now seen corresponding path program 1 times [2024-11-28 03:15:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:56,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029055563] [2024-11-28 03:15:56,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:56,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:56,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:56,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029055563] [2024-11-28 03:15:56,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029055563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:56,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:56,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:56,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879996691] [2024-11-28 03:15:56,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:56,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:56,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:56,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:56,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:56,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1529 out of 1885 [2024-11-28 03:15:56,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 428 transitions, 3407 flow. Second operand has 3 states, 3 states have (on average 1530.3333333333333) internal successors, (4591), 3 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:56,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:56,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1529 of 1885 [2024-11-28 03:15:56,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:58,261 INFO L124 PetriNetUnfolderBase]: 101/2479 cut-off events. [2024-11-28 03:15:58,261 INFO L125 PetriNetUnfolderBase]: For 22051/22051 co-relation queries the response was YES. [2024-11-28 03:15:58,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4262 conditions, 2479 events. 101/2479 cut-off events. For 22051/22051 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6856 event pairs, 50 based on Foata normal form. 101/2375 useless extension candidates. Maximal degree in co-relation 4107. Up to 356 conditions per place. [2024-11-28 03:15:58,317 INFO L140 encePairwiseOnDemand]: 1879/1885 looper letters, 59 selfloop transitions, 2 changer transitions 1/424 dead transitions. [2024-11-28 03:15:58,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 424 transitions, 3521 flow [2024-11-28 03:15:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:58,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4652 transitions. [2024-11-28 03:15:58,321 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8226348364279399 [2024-11-28 03:15:58,321 INFO L175 Difference]: Start difference. First operand has 525 places, 428 transitions, 3407 flow. Second operand 3 states and 4652 transitions. [2024-11-28 03:15:58,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 424 transitions, 3521 flow [2024-11-28 03:15:58,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 424 transitions, 1264 flow, removed 1128 selfloop flow, removed 1 redundant places. [2024-11-28 03:15:58,372 INFO L231 Difference]: Finished difference. Result has 525 places, 423 transitions, 1144 flow [2024-11-28 03:15:58,372 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1885, PETRI_DIFFERENCE_MINUEND_FLOW=1142, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1144, PETRI_PLACES=525, PETRI_TRANSITIONS=423} [2024-11-28 03:15:58,372 INFO L279 CegarLoopForPetriNet]: 525 programPoint places, 0 predicate places. [2024-11-28 03:15:58,372 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 423 transitions, 1144 flow [2024-11-28 03:15:58,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1530.3333333333333) internal successors, (4591), 3 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:58,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:58,373 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:58,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2024-11-28 03:15:58,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-28 03:15:58,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:58,374 INFO L85 PathProgramCache]: Analyzing trace with hash -96465650, now seen corresponding path program 1 times [2024-11-28 03:15:58,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:58,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127811576] [2024-11-28 03:15:58,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:58,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:15:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:15:58,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:15:58,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127811576] [2024-11-28 03:15:58,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127811576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:58,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:58,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:58,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189413212] [2024-11-28 03:15:58,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:58,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:58,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:15:58,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:58,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:58,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1429 out of 1885 [2024-11-28 03:15:58,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 423 transitions, 1144 flow. Second operand has 3 states, 3 states have (on average 1430.0) internal successors, (4290), 3 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:58,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:15:58,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1429 of 1885 [2024-11-28 03:15:58,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:15:59,878 INFO L124 PetriNetUnfolderBase]: 51/2225 cut-off events. [2024-11-28 03:15:59,878 INFO L125 PetriNetUnfolderBase]: For 1322/1322 co-relation queries the response was YES. [2024-11-28 03:15:59,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 2225 events. 51/2225 cut-off events. For 1322/1322 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5033 event pairs, 0 based on Foata normal form. 50/2174 useless extension candidates. Maximal degree in co-relation 2708. Up to 255 conditions per place. [2024-11-28 03:15:59,922 INFO L140 encePairwiseOnDemand]: 1879/1885 looper letters, 57 selfloop transitions, 1 changer transitions 24/418 dead transitions. [2024-11-28 03:15:59,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 418 transitions, 1254 flow [2024-11-28 03:15:59,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:59,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:15:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4352 transitions. [2024-11-28 03:15:59,926 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7695844385499558 [2024-11-28 03:15:59,926 INFO L175 Difference]: Start difference. First operand has 525 places, 423 transitions, 1144 flow. Second operand 3 states and 4352 transitions. [2024-11-28 03:15:59,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 418 transitions, 1254 flow [2024-11-28 03:15:59,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 418 transitions, 1250 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:15:59,932 INFO L231 Difference]: Finished difference. Result has 519 places, 394 transitions, 1082 flow [2024-11-28 03:15:59,932 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1885, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=519, PETRI_TRANSITIONS=394} [2024-11-28 03:15:59,933 INFO L279 CegarLoopForPetriNet]: 525 programPoint places, -6 predicate places. [2024-11-28 03:15:59,933 INFO L471 AbstractCegarLoop]: Abstraction has has 519 places, 394 transitions, 1082 flow [2024-11-28 03:15:59,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1430.0) internal successors, (4290), 3 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:15:59,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:15:59,934 INFO L206 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:59,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2024-11-28 03:15:59,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-28 03:15:59,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:59,940 INFO L85 PathProgramCache]: Analyzing trace with hash 636958815, now seen corresponding path program 1 times [2024-11-28 03:15:59,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:15:59,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773681001] [2024-11-28 03:15:59,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:59,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:00,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:00,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773681001] [2024-11-28 03:16:00,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773681001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:00,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:00,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:16:00,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008886745] [2024-11-28 03:16:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:00,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:00,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:00,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:00,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:16:00,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1576 out of 1885 [2024-11-28 03:16:00,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 394 transitions, 1082 flow. Second operand has 5 states, 5 states have (on average 1587.8) internal successors, (7939), 5 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:00,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:00,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1576 of 1885 [2024-11-28 03:16:00,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:01,072 INFO L124 PetriNetUnfolderBase]: 0/1038 cut-off events. [2024-11-28 03:16:01,072 INFO L125 PetriNetUnfolderBase]: For 1321/1321 co-relation queries the response was YES. [2024-11-28 03:16:01,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 1038 events. 0/1038 cut-off events. For 1321/1321 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 615 event pairs, 0 based on Foata normal form. 1/1038 useless extension candidates. Maximal degree in co-relation 0. Up to 155 conditions per place. [2024-11-28 03:16:01,073 INFO L140 encePairwiseOnDemand]: 1880/1885 looper letters, 57 selfloop transitions, 2 changer transitions 3/396 dead transitions. [2024-11-28 03:16:01,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 396 transitions, 1210 flow [2024-11-28 03:16:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:16:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7943 transitions. [2024-11-28 03:16:01,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8427586206896551 [2024-11-28 03:16:01,079 INFO L175 Difference]: Start difference. First operand has 519 places, 394 transitions, 1082 flow. Second operand 5 states and 7943 transitions. [2024-11-28 03:16:01,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 396 transitions, 1210 flow [2024-11-28 03:16:01,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 396 transitions, 1209 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:01,085 INFO L231 Difference]: Finished difference. Result has 499 places, 393 transitions, 1087 flow [2024-11-28 03:16:01,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1885, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1087, PETRI_PLACES=499, PETRI_TRANSITIONS=393} [2024-11-28 03:16:01,086 INFO L279 CegarLoopForPetriNet]: 525 programPoint places, -26 predicate places. [2024-11-28 03:16:01,086 INFO L471 AbstractCegarLoop]: Abstraction has has 499 places, 393 transitions, 1087 flow [2024-11-28 03:16:01,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1587.8) internal successors, (7939), 5 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:01,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:01,087 INFO L206 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:01,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2024-11-28 03:16:01,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-28 03:16:01,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:01,093 INFO L85 PathProgramCache]: Analyzing trace with hash -251434063, now seen corresponding path program 1 times [2024-11-28 03:16:01,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:01,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892677468] [2024-11-28 03:16:01,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:01,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:01,231 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:16:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:01,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:16:01,698 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (55 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (54 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (53 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (52 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 57 remaining) [2024-11-28 03:16:01,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 57 remaining) [2024-11-28 03:16:01,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 57 remaining) [2024-11-28 03:16:01,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 57 remaining) [2024-11-28 03:16:01,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 57 remaining) [2024-11-28 03:16:01,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2024-11-28 03:16:01,701 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:16:01,702 WARN L246 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:16:01,702 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2024-11-28 03:16:01,956 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:16:01,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1921 places, 1922 transitions, 9144 flow [2024-11-28 03:16:03,499 INFO L124 PetriNetUnfolderBase]: 257/3295 cut-off events. [2024-11-28 03:16:03,499 INFO L125 PetriNetUnfolderBase]: For 22050/22050 co-relation queries the response was YES. [2024-11-28 03:16:03,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4823 conditions, 3295 events. 257/3295 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9342 event pairs, 0 based on Foata normal form. 0/2881 useless extension candidates. Maximal degree in co-relation 4722. Up to 102 conditions per place. [2024-11-28 03:16:03,583 INFO L82 GeneralOperation]: Start removeDead. Operand has 1921 places, 1922 transitions, 9144 flow [2024-11-28 03:16:03,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 534 places, 435 transitions, 3523 flow [2024-11-28 03:16:03,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:16:03,594 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:16:03,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-28 03:16:03,596 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:16:03,596 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:16:03,596 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:03,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:03,596 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:03,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-28 03:16:03,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1260496730, now seen corresponding path program 1 times [2024-11-28 03:16:03,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:03,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982707027] [2024-11-28 03:16:03,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:03,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:03,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:03,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982707027] [2024-11-28 03:16:03,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982707027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:03,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:03,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:03,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084074581] [2024-11-28 03:16:03,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:03,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:03,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:03,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:03,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:04,053 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1559 out of 1922 [2024-11-28 03:16:04,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 435 transitions, 3523 flow. Second operand has 3 states, 3 states have (on average 1560.3333333333333) internal successors, (4681), 3 states have internal predecessors, (4681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:04,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:04,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1559 of 1922 [2024-11-28 03:16:04,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:05,358 INFO L124 PetriNetUnfolderBase]: 103/2528 cut-off events. [2024-11-28 03:16:05,358 INFO L125 PetriNetUnfolderBase]: For 23376/23376 co-relation queries the response was YES. [2024-11-28 03:16:05,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4372 conditions, 2528 events. 103/2528 cut-off events. For 23376/23376 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6959 event pairs, 51 based on Foata normal form. 103/2422 useless extension candidates. Maximal degree in co-relation 4216. Up to 363 conditions per place. [2024-11-28 03:16:05,417 INFO L140 encePairwiseOnDemand]: 1916/1922 looper letters, 60 selfloop transitions, 2 changer transitions 1/431 dead transitions. [2024-11-28 03:16:05,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 431 transitions, 3639 flow [2024-11-28 03:16:05,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:05,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:05,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4743 transitions. [2024-11-28 03:16:05,421 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8225806451612904 [2024-11-28 03:16:05,422 INFO L175 Difference]: Start difference. First operand has 534 places, 435 transitions, 3523 flow. Second operand 3 states and 4743 transitions. [2024-11-28 03:16:05,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 431 transitions, 3639 flow [2024-11-28 03:16:05,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 431 transitions, 1286 flow, removed 1176 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:05,468 INFO L231 Difference]: Finished difference. Result has 534 places, 430 transitions, 1164 flow [2024-11-28 03:16:05,469 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1922, PETRI_DIFFERENCE_MINUEND_FLOW=1162, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1164, PETRI_PLACES=534, PETRI_TRANSITIONS=430} [2024-11-28 03:16:05,469 INFO L279 CegarLoopForPetriNet]: 534 programPoint places, 0 predicate places. [2024-11-28 03:16:05,469 INFO L471 AbstractCegarLoop]: Abstraction has has 534 places, 430 transitions, 1164 flow [2024-11-28 03:16:05,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1560.3333333333333) internal successors, (4681), 3 states have internal predecessors, (4681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:05,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:05,470 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:05,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2024-11-28 03:16:05,470 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-28 03:16:05,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:05,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1418174350, now seen corresponding path program 1 times [2024-11-28 03:16:05,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:05,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145000031] [2024-11-28 03:16:05,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:05,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:05,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:05,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:05,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145000031] [2024-11-28 03:16:05,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145000031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:05,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:05,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:05,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371065638] [2024-11-28 03:16:05,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:05,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:05,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:05,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:05,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:05,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1457 out of 1922 [2024-11-28 03:16:05,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 430 transitions, 1164 flow. Second operand has 3 states, 3 states have (on average 1458.0) internal successors, (4374), 3 states have internal predecessors, (4374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:05,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:05,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1457 of 1922 [2024-11-28 03:16:05,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:06,914 INFO L124 PetriNetUnfolderBase]: 52/2269 cut-off events. [2024-11-28 03:16:06,914 INFO L125 PetriNetUnfolderBase]: For 1374/1374 co-relation queries the response was YES. [2024-11-28 03:16:06,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2836 conditions, 2269 events. 52/2269 cut-off events. For 1374/1374 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5136 event pairs, 0 based on Foata normal form. 51/2217 useless extension candidates. Maximal degree in co-relation 2762. Up to 260 conditions per place. [2024-11-28 03:16:06,959 INFO L140 encePairwiseOnDemand]: 1916/1922 looper letters, 58 selfloop transitions, 1 changer transitions 24/425 dead transitions. [2024-11-28 03:16:06,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 425 transitions, 1276 flow [2024-11-28 03:16:06,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:06,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:06,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4437 transitions. [2024-11-28 03:16:06,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7695109261186265 [2024-11-28 03:16:06,963 INFO L175 Difference]: Start difference. First operand has 534 places, 430 transitions, 1164 flow. Second operand 3 states and 4437 transitions. [2024-11-28 03:16:06,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 425 transitions, 1276 flow [2024-11-28 03:16:06,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 425 transitions, 1272 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:16:06,969 INFO L231 Difference]: Finished difference. Result has 528 places, 401 transitions, 1102 flow [2024-11-28 03:16:06,970 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1922, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1102, PETRI_PLACES=528, PETRI_TRANSITIONS=401} [2024-11-28 03:16:06,970 INFO L279 CegarLoopForPetriNet]: 534 programPoint places, -6 predicate places. [2024-11-28 03:16:06,970 INFO L471 AbstractCegarLoop]: Abstraction has has 528 places, 401 transitions, 1102 flow [2024-11-28 03:16:06,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1458.0) internal successors, (4374), 3 states have internal predecessors, (4374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:06,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:06,971 INFO L206 CegarLoopForPetriNet]: trace histogram [51, 51, 51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:06,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2024-11-28 03:16:06,971 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-28 03:16:06,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash 973839310, now seen corresponding path program 1 times [2024-11-28 03:16:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:06,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808431610] [2024-11-28 03:16:06,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:06,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:07,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:07,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808431610] [2024-11-28 03:16:07,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808431610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:07,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:07,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:16:07,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672641031] [2024-11-28 03:16:07,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:07,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:07,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:07,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:07,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:16:07,709 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1607 out of 1922 [2024-11-28 03:16:07,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 401 transitions, 1102 flow. Second operand has 5 states, 5 states have (on average 1619.0) internal successors, (8095), 5 states have internal predecessors, (8095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:07,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:07,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1607 of 1922 [2024-11-28 03:16:07,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:08,310 INFO L124 PetriNetUnfolderBase]: 0/1058 cut-off events. [2024-11-28 03:16:08,310 INFO L125 PetriNetUnfolderBase]: For 1373/1373 co-relation queries the response was YES. [2024-11-28 03:16:08,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 1058 events. 0/1058 cut-off events. For 1373/1373 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 628 event pairs, 0 based on Foata normal form. 1/1058 useless extension candidates. Maximal degree in co-relation 0. Up to 158 conditions per place. [2024-11-28 03:16:08,311 INFO L140 encePairwiseOnDemand]: 1917/1922 looper letters, 58 selfloop transitions, 2 changer transitions 3/403 dead transitions. [2024-11-28 03:16:08,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 403 transitions, 1232 flow [2024-11-28 03:16:08,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:16:08,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8099 transitions. [2024-11-28 03:16:08,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8427679500520291 [2024-11-28 03:16:08,317 INFO L175 Difference]: Start difference. First operand has 528 places, 401 transitions, 1102 flow. Second operand 5 states and 8099 transitions. [2024-11-28 03:16:08,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 403 transitions, 1232 flow [2024-11-28 03:16:08,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 403 transitions, 1231 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:08,323 INFO L231 Difference]: Finished difference. Result has 508 places, 400 transitions, 1107 flow [2024-11-28 03:16:08,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1922, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1107, PETRI_PLACES=508, PETRI_TRANSITIONS=400} [2024-11-28 03:16:08,324 INFO L279 CegarLoopForPetriNet]: 534 programPoint places, -26 predicate places. [2024-11-28 03:16:08,324 INFO L471 AbstractCegarLoop]: Abstraction has has 508 places, 400 transitions, 1107 flow [2024-11-28 03:16:08,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1619.0) internal successors, (8095), 5 states have internal predecessors, (8095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:08,326 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:08,326 INFO L206 CegarLoopForPetriNet]: trace histogram [51, 51, 51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:08,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2024-11-28 03:16:08,327 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2024-11-28 03:16:08,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:08,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1741887074, now seen corresponding path program 1 times [2024-11-28 03:16:08,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:08,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336405827] [2024-11-28 03:16:08,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:08,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:08,478 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:16:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:08,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:16:08,968 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:16:08,968 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2024-11-28 03:16:08,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2024-11-28 03:16:08,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2024-11-28 03:16:08,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2024-11-28 03:16:08,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2024-11-28 03:16:08,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2024-11-28 03:16:08,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 58 remaining) [2024-11-28 03:16:08,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2024-11-28 03:16:08,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2024-11-28 03:16:08,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2024-11-28 03:16:08,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2024-11-28 03:16:08,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2024-11-28 03:16:08,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2024-11-28 03:16:08,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2024-11-28 03:16:08,972 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:16:08,972 WARN L246 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:16:08,972 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2024-11-28 03:16:09,353 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:16:09,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1958 places, 1959 transitions, 9426 flow [2024-11-28 03:16:11,063 INFO L124 PetriNetUnfolderBase]: 262/3359 cut-off events. [2024-11-28 03:16:11,063 INFO L125 PetriNetUnfolderBase]: For 23375/23375 co-relation queries the response was YES. [2024-11-28 03:16:11,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4943 conditions, 3359 events. 262/3359 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9743 event pairs, 0 based on Foata normal form. 0/2937 useless extension candidates. Maximal degree in co-relation 4840. Up to 104 conditions per place. [2024-11-28 03:16:11,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 1958 places, 1959 transitions, 9426 flow [2024-11-28 03:16:11,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 543 places, 442 transitions, 3641 flow [2024-11-28 03:16:11,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:16:11,162 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:16:11,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-11-28 03:16:11,163 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:16:11,163 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:16:11,163 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:11,163 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:11,164 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:11,164 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-28 03:16:11,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:11,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2070273958, now seen corresponding path program 1 times [2024-11-28 03:16:11,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:11,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544500683] [2024-11-28 03:16:11,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:11,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:11,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:11,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:11,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544500683] [2024-11-28 03:16:11,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544500683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:11,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:11,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:11,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782589928] [2024-11-28 03:16:11,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:11,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:11,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:11,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:11,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:11,518 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1589 out of 1959 [2024-11-28 03:16:11,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 442 transitions, 3641 flow. Second operand has 3 states, 3 states have (on average 1590.3333333333333) internal successors, (4771), 3 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:11,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:11,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1589 of 1959 [2024-11-28 03:16:11,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:12,930 INFO L124 PetriNetUnfolderBase]: 105/2577 cut-off events. [2024-11-28 03:16:12,930 INFO L125 PetriNetUnfolderBase]: For 24753/24753 co-relation queries the response was YES. [2024-11-28 03:16:12,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4483 conditions, 2577 events. 105/2577 cut-off events. For 24753/24753 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6829 event pairs, 52 based on Foata normal form. 53/2417 useless extension candidates. Maximal degree in co-relation 4326. Up to 370 conditions per place. [2024-11-28 03:16:12,991 INFO L140 encePairwiseOnDemand]: 1953/1959 looper letters, 61 selfloop transitions, 2 changer transitions 1/438 dead transitions. [2024-11-28 03:16:12,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 438 transitions, 3759 flow [2024-11-28 03:16:12,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:12,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:12,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4834 transitions. [2024-11-28 03:16:12,995 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8225285009358516 [2024-11-28 03:16:12,995 INFO L175 Difference]: Start difference. First operand has 543 places, 442 transitions, 3641 flow. Second operand 3 states and 4834 transitions. [2024-11-28 03:16:12,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 438 transitions, 3759 flow [2024-11-28 03:16:13,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 438 transitions, 1308 flow, removed 1225 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:13,047 INFO L231 Difference]: Finished difference. Result has 543 places, 437 transitions, 1184 flow [2024-11-28 03:16:13,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1959, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1184, PETRI_PLACES=543, PETRI_TRANSITIONS=437} [2024-11-28 03:16:13,047 INFO L279 CegarLoopForPetriNet]: 543 programPoint places, 0 predicate places. [2024-11-28 03:16:13,047 INFO L471 AbstractCegarLoop]: Abstraction has has 543 places, 437 transitions, 1184 flow [2024-11-28 03:16:13,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1590.3333333333333) internal successors, (4771), 3 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:13,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:13,048 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:13,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2024-11-28 03:16:13,048 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-28 03:16:13,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:13,049 INFO L85 PathProgramCache]: Analyzing trace with hash -242493362, now seen corresponding path program 1 times [2024-11-28 03:16:13,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:13,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294205879] [2024-11-28 03:16:13,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:13,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:13,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:13,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294205879] [2024-11-28 03:16:13,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294205879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:13,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:13,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:13,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439621344] [2024-11-28 03:16:13,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:13,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:13,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:13,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:13,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:13,325 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1485 out of 1959 [2024-11-28 03:16:13,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 437 transitions, 1184 flow. Second operand has 3 states, 3 states have (on average 1486.0) internal successors, (4458), 3 states have internal predecessors, (4458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:13,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:13,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1485 of 1959 [2024-11-28 03:16:13,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:14,560 INFO L124 PetriNetUnfolderBase]: 53/2313 cut-off events. [2024-11-28 03:16:14,560 INFO L125 PetriNetUnfolderBase]: For 1427/1427 co-relation queries the response was YES. [2024-11-28 03:16:14,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2891 conditions, 2313 events. 53/2313 cut-off events. For 1427/1427 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5133 event pairs, 0 based on Foata normal form. 52/2260 useless extension candidates. Maximal degree in co-relation 2816. Up to 265 conditions per place. [2024-11-28 03:16:14,608 INFO L140 encePairwiseOnDemand]: 1953/1959 looper letters, 59 selfloop transitions, 1 changer transitions 24/432 dead transitions. [2024-11-28 03:16:14,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 432 transitions, 1298 flow [2024-11-28 03:16:14,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:14,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4522 transitions. [2024-11-28 03:16:14,612 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7694401905734218 [2024-11-28 03:16:14,612 INFO L175 Difference]: Start difference. First operand has 543 places, 437 transitions, 1184 flow. Second operand 3 states and 4522 transitions. [2024-11-28 03:16:14,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 432 transitions, 1298 flow [2024-11-28 03:16:14,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 432 transitions, 1294 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:16:14,619 INFO L231 Difference]: Finished difference. Result has 537 places, 408 transitions, 1122 flow [2024-11-28 03:16:14,620 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1959, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1122, PETRI_PLACES=537, PETRI_TRANSITIONS=408} [2024-11-28 03:16:14,620 INFO L279 CegarLoopForPetriNet]: 543 programPoint places, -6 predicate places. [2024-11-28 03:16:14,620 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 408 transitions, 1122 flow [2024-11-28 03:16:14,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1486.0) internal successors, (4458), 3 states have internal predecessors, (4458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:14,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:14,621 INFO L206 CegarLoopForPetriNet]: trace histogram [52, 52, 52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:14,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2024-11-28 03:16:14,621 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-28 03:16:14,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:14,628 INFO L85 PathProgramCache]: Analyzing trace with hash -373318901, now seen corresponding path program 1 times [2024-11-28 03:16:14,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:14,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931525671] [2024-11-28 03:16:14,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:14,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:14,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:14,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931525671] [2024-11-28 03:16:14,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931525671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:14,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:14,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:16:14,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423995151] [2024-11-28 03:16:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:14,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:14,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:14,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:14,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:16:15,208 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1638 out of 1959 [2024-11-28 03:16:15,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 408 transitions, 1122 flow. Second operand has 5 states, 5 states have (on average 1650.2) internal successors, (8251), 5 states have internal predecessors, (8251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:15,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:15,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1638 of 1959 [2024-11-28 03:16:15,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:15,905 INFO L124 PetriNetUnfolderBase]: 0/1078 cut-off events. [2024-11-28 03:16:15,905 INFO L125 PetriNetUnfolderBase]: For 1426/1426 co-relation queries the response was YES. [2024-11-28 03:16:15,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 1078 events. 0/1078 cut-off events. For 1426/1426 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 639 event pairs, 0 based on Foata normal form. 1/1078 useless extension candidates. Maximal degree in co-relation 0. Up to 161 conditions per place. [2024-11-28 03:16:15,907 INFO L140 encePairwiseOnDemand]: 1954/1959 looper letters, 59 selfloop transitions, 2 changer transitions 3/410 dead transitions. [2024-11-28 03:16:15,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 410 transitions, 1254 flow [2024-11-28 03:16:15,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:15,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:16:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8255 transitions. [2024-11-28 03:16:15,911 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8427769270035732 [2024-11-28 03:16:15,912 INFO L175 Difference]: Start difference. First operand has 537 places, 408 transitions, 1122 flow. Second operand 5 states and 8255 transitions. [2024-11-28 03:16:15,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 410 transitions, 1254 flow [2024-11-28 03:16:15,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 410 transitions, 1253 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:15,918 INFO L231 Difference]: Finished difference. Result has 517 places, 407 transitions, 1127 flow [2024-11-28 03:16:15,918 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1959, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1127, PETRI_PLACES=517, PETRI_TRANSITIONS=407} [2024-11-28 03:16:15,918 INFO L279 CegarLoopForPetriNet]: 543 programPoint places, -26 predicate places. [2024-11-28 03:16:15,918 INFO L471 AbstractCegarLoop]: Abstraction has has 517 places, 407 transitions, 1127 flow [2024-11-28 03:16:15,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1650.2) internal successors, (8251), 5 states have internal predecessors, (8251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:15,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:15,919 INFO L206 CegarLoopForPetriNet]: trace histogram [52, 52, 52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:15,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2024-11-28 03:16:15,920 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2024-11-28 03:16:15,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:15,926 INFO L85 PathProgramCache]: Analyzing trace with hash 757069492, now seen corresponding path program 1 times [2024-11-28 03:16:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:15,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654430455] [2024-11-28 03:16:15,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:16,074 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:16:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:16,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:16:16,766 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (58 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2024-11-28 03:16:16,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2024-11-28 03:16:16,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2024-11-28 03:16:16,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2024-11-28 03:16:16,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2024-11-28 03:16:16,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2024-11-28 03:16:16,770 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:16:16,771 WARN L246 ceAbstractionStarter]: 51 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:16:16,771 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 52 thread instances. [2024-11-28 03:16:17,048 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:16:17,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1995 places, 1996 transitions, 9712 flow [2024-11-28 03:16:18,896 INFO L124 PetriNetUnfolderBase]: 267/3423 cut-off events. [2024-11-28 03:16:18,896 INFO L125 PetriNetUnfolderBase]: For 24752/24752 co-relation queries the response was YES. [2024-11-28 03:16:18,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5064 conditions, 3423 events. 267/3423 cut-off events. For 24752/24752 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10047 event pairs, 0 based on Foata normal form. 0/2993 useless extension candidates. Maximal degree in co-relation 4959. Up to 106 conditions per place. [2024-11-28 03:16:18,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 1995 places, 1996 transitions, 9712 flow [2024-11-28 03:16:18,997 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 552 places, 449 transitions, 3761 flow [2024-11-28 03:16:18,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:16:18,998 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:16:18,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-28 03:16:19,001 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:16:19,001 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:16:19,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:19,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:19,001 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:19,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-28 03:16:19,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1057172390, now seen corresponding path program 1 times [2024-11-28 03:16:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:19,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464892653] [2024-11-28 03:16:19,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:19,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:19,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:19,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464892653] [2024-11-28 03:16:19,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464892653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:19,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:19,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:19,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620767862] [2024-11-28 03:16:19,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:19,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:19,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:19,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:19,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:19,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1619 out of 1996 [2024-11-28 03:16:19,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 449 transitions, 3761 flow. Second operand has 3 states, 3 states have (on average 1620.3333333333333) internal successors, (4861), 3 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:19,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:19,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1619 of 1996 [2024-11-28 03:16:19,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:20,856 INFO L124 PetriNetUnfolderBase]: 107/2626 cut-off events. [2024-11-28 03:16:20,856 INFO L125 PetriNetUnfolderBase]: For 26183/26183 co-relation queries the response was YES. [2024-11-28 03:16:20,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4595 conditions, 2626 events. 107/2626 cut-off events. For 26183/26183 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6999 event pairs, 53 based on Foata normal form. 54/2463 useless extension candidates. Maximal degree in co-relation 4437. Up to 377 conditions per place. [2024-11-28 03:16:20,920 INFO L140 encePairwiseOnDemand]: 1990/1996 looper letters, 62 selfloop transitions, 2 changer transitions 1/445 dead transitions. [2024-11-28 03:16:20,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 445 transitions, 3881 flow [2024-11-28 03:16:20,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:20,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4925 transitions. [2024-11-28 03:16:20,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8224782899131596 [2024-11-28 03:16:20,925 INFO L175 Difference]: Start difference. First operand has 552 places, 449 transitions, 3761 flow. Second operand 3 states and 4925 transitions. [2024-11-28 03:16:20,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 445 transitions, 3881 flow [2024-11-28 03:16:20,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 445 transitions, 1330 flow, removed 1275 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:20,983 INFO L231 Difference]: Finished difference. Result has 552 places, 444 transitions, 1204 flow [2024-11-28 03:16:20,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1996, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1204, PETRI_PLACES=552, PETRI_TRANSITIONS=444} [2024-11-28 03:16:20,984 INFO L279 CegarLoopForPetriNet]: 552 programPoint places, 0 predicate places. [2024-11-28 03:16:20,984 INFO L471 AbstractCegarLoop]: Abstraction has has 552 places, 444 transitions, 1204 flow [2024-11-28 03:16:20,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1620.3333333333333) internal successors, (4861), 3 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:20,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:20,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:20,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2024-11-28 03:16:20,985 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-28 03:16:20,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:20,985 INFO L85 PathProgramCache]: Analyzing trace with hash -783501490, now seen corresponding path program 1 times [2024-11-28 03:16:20,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:20,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775601770] [2024-11-28 03:16:20,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:20,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:21,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:21,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775601770] [2024-11-28 03:16:21,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775601770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:21,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:21,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745675098] [2024-11-28 03:16:21,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:21,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:21,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:21,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:21,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1513 out of 1996 [2024-11-28 03:16:21,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 444 transitions, 1204 flow. Second operand has 3 states, 3 states have (on average 1514.0) internal successors, (4542), 3 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:21,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:21,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1513 of 1996 [2024-11-28 03:16:21,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:22,505 INFO L124 PetriNetUnfolderBase]: 54/2357 cut-off events. [2024-11-28 03:16:22,505 INFO L125 PetriNetUnfolderBase]: For 1481/1481 co-relation queries the response was YES. [2024-11-28 03:16:22,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2946 conditions, 2357 events. 54/2357 cut-off events. For 1481/1481 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5233 event pairs, 0 based on Foata normal form. 53/2303 useless extension candidates. Maximal degree in co-relation 2870. Up to 270 conditions per place. [2024-11-28 03:16:22,553 INFO L140 encePairwiseOnDemand]: 1990/1996 looper letters, 60 selfloop transitions, 1 changer transitions 24/439 dead transitions. [2024-11-28 03:16:22,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 439 transitions, 1320 flow [2024-11-28 03:16:22,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:22,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4607 transitions. [2024-11-28 03:16:22,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7693720774883099 [2024-11-28 03:16:22,557 INFO L175 Difference]: Start difference. First operand has 552 places, 444 transitions, 1204 flow. Second operand 3 states and 4607 transitions. [2024-11-28 03:16:22,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 439 transitions, 1320 flow [2024-11-28 03:16:22,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 439 transitions, 1316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:16:22,564 INFO L231 Difference]: Finished difference. Result has 546 places, 415 transitions, 1142 flow [2024-11-28 03:16:22,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1996, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=546, PETRI_TRANSITIONS=415} [2024-11-28 03:16:22,565 INFO L279 CegarLoopForPetriNet]: 552 programPoint places, -6 predicate places. [2024-11-28 03:16:22,565 INFO L471 AbstractCegarLoop]: Abstraction has has 546 places, 415 transitions, 1142 flow [2024-11-28 03:16:22,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1514.0) internal successors, (4542), 3 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:22,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:22,566 INFO L206 CegarLoopForPetriNet]: trace histogram [53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:22,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2024-11-28 03:16:22,566 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-28 03:16:22,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:22,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1629837770, now seen corresponding path program 1 times [2024-11-28 03:16:22,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:22,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343232343] [2024-11-28 03:16:22,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:22,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:23,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:23,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343232343] [2024-11-28 03:16:23,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343232343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:23,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:23,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:16:23,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404332842] [2024-11-28 03:16:23,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:23,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:23,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:23,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:23,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:16:23,434 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1669 out of 1996 [2024-11-28 03:16:23,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 415 transitions, 1142 flow. Second operand has 5 states, 5 states have (on average 1681.4) internal successors, (8407), 5 states have internal predecessors, (8407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:23,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:23,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1669 of 1996 [2024-11-28 03:16:23,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:24,071 INFO L124 PetriNetUnfolderBase]: 0/1098 cut-off events. [2024-11-28 03:16:24,071 INFO L125 PetriNetUnfolderBase]: For 1480/1480 co-relation queries the response was YES. [2024-11-28 03:16:24,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1477 conditions, 1098 events. 0/1098 cut-off events. For 1480/1480 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 651 event pairs, 0 based on Foata normal form. 1/1098 useless extension candidates. Maximal degree in co-relation 0. Up to 164 conditions per place. [2024-11-28 03:16:24,074 INFO L140 encePairwiseOnDemand]: 1991/1996 looper letters, 60 selfloop transitions, 2 changer transitions 3/417 dead transitions. [2024-11-28 03:16:24,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 417 transitions, 1276 flow [2024-11-28 03:16:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:16:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8411 transitions. [2024-11-28 03:16:24,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8427855711422846 [2024-11-28 03:16:24,079 INFO L175 Difference]: Start difference. First operand has 546 places, 415 transitions, 1142 flow. Second operand 5 states and 8411 transitions. [2024-11-28 03:16:24,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 417 transitions, 1276 flow [2024-11-28 03:16:24,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 417 transitions, 1275 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:24,086 INFO L231 Difference]: Finished difference. Result has 526 places, 414 transitions, 1147 flow [2024-11-28 03:16:24,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1996, PETRI_DIFFERENCE_MINUEND_FLOW=1141, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1147, PETRI_PLACES=526, PETRI_TRANSITIONS=414} [2024-11-28 03:16:24,087 INFO L279 CegarLoopForPetriNet]: 552 programPoint places, -26 predicate places. [2024-11-28 03:16:24,087 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 414 transitions, 1147 flow [2024-11-28 03:16:24,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1681.4) internal successors, (8407), 5 states have internal predecessors, (8407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:24,088 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:24,089 INFO L206 CegarLoopForPetriNet]: trace histogram [53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:24,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2024-11-28 03:16:24,089 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-28 03:16:24,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:24,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1793658541, now seen corresponding path program 1 times [2024-11-28 03:16:24,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:24,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814478343] [2024-11-28 03:16:24,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:24,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:24,334 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:16:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:24,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:16:24,950 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2024-11-28 03:16:24,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2024-11-28 03:16:24,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2024-11-28 03:16:24,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2024-11-28 03:16:24,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2024-11-28 03:16:24,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2024-11-28 03:16:24,954 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:16:24,954 WARN L246 ceAbstractionStarter]: 52 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:16:24,954 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 53 thread instances. [2024-11-28 03:16:25,227 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:16:25,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2032 places, 2033 transitions, 10002 flow [2024-11-28 03:16:27,372 INFO L124 PetriNetUnfolderBase]: 272/3487 cut-off events. [2024-11-28 03:16:27,372 INFO L125 PetriNetUnfolderBase]: For 26182/26182 co-relation queries the response was YES. [2024-11-28 03:16:27,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5186 conditions, 3487 events. 272/3487 cut-off events. For 26182/26182 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10101 event pairs, 0 based on Foata normal form. 0/3049 useless extension candidates. Maximal degree in co-relation 5079. Up to 108 conditions per place. [2024-11-28 03:16:27,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 2032 places, 2033 transitions, 10002 flow [2024-11-28 03:16:27,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 561 places, 456 transitions, 3883 flow [2024-11-28 03:16:27,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:16:27,500 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:16:27,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-11-28 03:16:27,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:16:27,502 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:16:27,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:27,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:27,502 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:27,502 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-28 03:16:27,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:27,502 INFO L85 PathProgramCache]: Analyzing trace with hash -4834138, now seen corresponding path program 1 times [2024-11-28 03:16:27,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:27,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457857436] [2024-11-28 03:16:27,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:27,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:27,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:27,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457857436] [2024-11-28 03:16:27,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457857436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:27,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:27,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:27,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058379075] [2024-11-28 03:16:27,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:27,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:27,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:27,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:27,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:27,824 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1649 out of 2033 [2024-11-28 03:16:27,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 456 transitions, 3883 flow. Second operand has 3 states, 3 states have (on average 1650.3333333333333) internal successors, (4951), 3 states have internal predecessors, (4951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:27,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:27,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1649 of 2033 [2024-11-28 03:16:27,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:29,656 INFO L124 PetriNetUnfolderBase]: 109/2675 cut-off events. [2024-11-28 03:16:29,656 INFO L125 PetriNetUnfolderBase]: For 27667/27667 co-relation queries the response was YES. [2024-11-28 03:16:29,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4708 conditions, 2675 events. 109/2675 cut-off events. For 27667/27667 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 7135 event pairs, 54 based on Foata normal form. 55/2509 useless extension candidates. Maximal degree in co-relation 4549. Up to 384 conditions per place. [2024-11-28 03:16:29,695 INFO L140 encePairwiseOnDemand]: 2027/2033 looper letters, 63 selfloop transitions, 2 changer transitions 1/452 dead transitions. [2024-11-28 03:16:29,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 452 transitions, 4005 flow [2024-11-28 03:16:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:29,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5016 transitions. [2024-11-28 03:16:29,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822429906542056 [2024-11-28 03:16:29,699 INFO L175 Difference]: Start difference. First operand has 561 places, 456 transitions, 3883 flow. Second operand 3 states and 5016 transitions. [2024-11-28 03:16:29,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 452 transitions, 4005 flow [2024-11-28 03:16:29,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 452 transitions, 1352 flow, removed 1326 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:29,760 INFO L231 Difference]: Finished difference. Result has 561 places, 451 transitions, 1224 flow [2024-11-28 03:16:29,760 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2033, PETRI_DIFFERENCE_MINUEND_FLOW=1222, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1224, PETRI_PLACES=561, PETRI_TRANSITIONS=451} [2024-11-28 03:16:29,760 INFO L279 CegarLoopForPetriNet]: 561 programPoint places, 0 predicate places. [2024-11-28 03:16:29,760 INFO L471 AbstractCegarLoop]: Abstraction has has 561 places, 451 transitions, 1224 flow [2024-11-28 03:16:29,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1650.3333333333333) internal successors, (4951), 3 states have internal predecessors, (4951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:29,761 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:29,761 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:29,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2024-11-28 03:16:29,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-28 03:16:29,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash -204850034, now seen corresponding path program 1 times [2024-11-28 03:16:29,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:29,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375548096] [2024-11-28 03:16:29,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:29,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:29,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:29,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375548096] [2024-11-28 03:16:29,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375548096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:29,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:29,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:29,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101577419] [2024-11-28 03:16:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:29,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:29,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:29,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:29,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:30,104 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1541 out of 2033 [2024-11-28 03:16:30,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 451 transitions, 1224 flow. Second operand has 3 states, 3 states have (on average 1542.0) internal successors, (4626), 3 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:30,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:30,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1541 of 2033 [2024-11-28 03:16:30,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:31,341 INFO L124 PetriNetUnfolderBase]: 55/2401 cut-off events. [2024-11-28 03:16:31,341 INFO L125 PetriNetUnfolderBase]: For 1536/1536 co-relation queries the response was YES. [2024-11-28 03:16:31,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3001 conditions, 2401 events. 55/2401 cut-off events. For 1536/1536 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5334 event pairs, 0 based on Foata normal form. 54/2346 useless extension candidates. Maximal degree in co-relation 2924. Up to 275 conditions per place. [2024-11-28 03:16:31,391 INFO L140 encePairwiseOnDemand]: 2027/2033 looper letters, 61 selfloop transitions, 1 changer transitions 24/446 dead transitions. [2024-11-28 03:16:31,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 446 transitions, 1342 flow [2024-11-28 03:16:31,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4692 transitions. [2024-11-28 03:16:31,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7693064436792917 [2024-11-28 03:16:31,395 INFO L175 Difference]: Start difference. First operand has 561 places, 451 transitions, 1224 flow. Second operand 3 states and 4692 transitions. [2024-11-28 03:16:31,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 446 transitions, 1342 flow [2024-11-28 03:16:31,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 446 transitions, 1338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:16:31,402 INFO L231 Difference]: Finished difference. Result has 555 places, 422 transitions, 1162 flow [2024-11-28 03:16:31,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2033, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1162, PETRI_PLACES=555, PETRI_TRANSITIONS=422} [2024-11-28 03:16:31,403 INFO L279 CegarLoopForPetriNet]: 561 programPoint places, -6 predicate places. [2024-11-28 03:16:31,403 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 422 transitions, 1162 flow [2024-11-28 03:16:31,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1542.0) internal successors, (4626), 3 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:31,404 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:31,404 INFO L206 CegarLoopForPetriNet]: trace histogram [54, 54, 54, 54, 54, 54, 54, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:31,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2024-11-28 03:16:31,404 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-28 03:16:31,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:31,411 INFO L85 PathProgramCache]: Analyzing trace with hash 492907887, now seen corresponding path program 1 times [2024-11-28 03:16:31,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:31,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389955357] [2024-11-28 03:16:31,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:31,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:31,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:31,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389955357] [2024-11-28 03:16:31,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389955357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:31,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:31,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:16:31,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270318327] [2024-11-28 03:16:31,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:31,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:31,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:31,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:31,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:16:31,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1700 out of 2033 [2024-11-28 03:16:32,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 422 transitions, 1162 flow. Second operand has 5 states, 5 states have (on average 1712.6) internal successors, (8563), 5 states have internal predecessors, (8563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:32,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:32,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1700 of 2033 [2024-11-28 03:16:32,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:32,621 INFO L124 PetriNetUnfolderBase]: 0/1118 cut-off events. [2024-11-28 03:16:32,621 INFO L125 PetriNetUnfolderBase]: For 1535/1535 co-relation queries the response was YES. [2024-11-28 03:16:32,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 1118 events. 0/1118 cut-off events. For 1535/1535 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 664 event pairs, 0 based on Foata normal form. 1/1118 useless extension candidates. Maximal degree in co-relation 0. Up to 167 conditions per place. [2024-11-28 03:16:32,622 INFO L140 encePairwiseOnDemand]: 2028/2033 looper letters, 61 selfloop transitions, 2 changer transitions 3/424 dead transitions. [2024-11-28 03:16:32,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 424 transitions, 1298 flow [2024-11-28 03:16:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:16:32,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8567 transitions. [2024-11-28 03:16:32,628 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8427939006394491 [2024-11-28 03:16:32,628 INFO L175 Difference]: Start difference. First operand has 555 places, 422 transitions, 1162 flow. Second operand 5 states and 8567 transitions. [2024-11-28 03:16:32,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 424 transitions, 1298 flow [2024-11-28 03:16:32,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 424 transitions, 1297 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:32,635 INFO L231 Difference]: Finished difference. Result has 535 places, 421 transitions, 1167 flow [2024-11-28 03:16:32,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2033, PETRI_DIFFERENCE_MINUEND_FLOW=1161, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1167, PETRI_PLACES=535, PETRI_TRANSITIONS=421} [2024-11-28 03:16:32,636 INFO L279 CegarLoopForPetriNet]: 561 programPoint places, -26 predicate places. [2024-11-28 03:16:32,636 INFO L471 AbstractCegarLoop]: Abstraction has has 535 places, 421 transitions, 1167 flow [2024-11-28 03:16:32,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1712.6) internal successors, (8563), 5 states have internal predecessors, (8563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:32,637 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:32,637 INFO L206 CegarLoopForPetriNet]: trace histogram [54, 54, 54, 54, 54, 54, 54, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:32,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2024-11-28 03:16:32,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-28 03:16:32,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:32,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1365071835, now seen corresponding path program 1 times [2024-11-28 03:16:32,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:32,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077743033] [2024-11-28 03:16:32,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:32,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:32,799 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:16:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:33,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:16:33,547 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2024-11-28 03:16:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2024-11-28 03:16:33,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2024-11-28 03:16:33,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2024-11-28 03:16:33,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2024-11-28 03:16:33,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2024-11-28 03:16:33,551 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:16:33,552 WARN L246 ceAbstractionStarter]: 53 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:16:33,552 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 54 thread instances. [2024-11-28 03:16:33,827 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:16:33,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2069 places, 2070 transitions, 10296 flow [2024-11-28 03:16:35,862 INFO L124 PetriNetUnfolderBase]: 277/3551 cut-off events. [2024-11-28 03:16:35,862 INFO L125 PetriNetUnfolderBase]: For 27666/27666 co-relation queries the response was YES. [2024-11-28 03:16:35,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5309 conditions, 3551 events. 277/3551 cut-off events. For 27666/27666 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10196 event pairs, 0 based on Foata normal form. 0/3105 useless extension candidates. Maximal degree in co-relation 5200. Up to 110 conditions per place. [2024-11-28 03:16:35,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 2069 places, 2070 transitions, 10296 flow [2024-11-28 03:16:35,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 570 places, 463 transitions, 4007 flow [2024-11-28 03:16:35,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:16:35,977 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:16:35,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-11-28 03:16:35,978 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:16:35,978 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:16:35,978 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:35,978 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:35,978 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:35,978 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-28 03:16:35,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:35,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1115745626, now seen corresponding path program 1 times [2024-11-28 03:16:35,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:35,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101751739] [2024-11-28 03:16:35,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:35,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:36,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:36,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:36,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101751739] [2024-11-28 03:16:36,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101751739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:36,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:36,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880230858] [2024-11-28 03:16:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:36,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:36,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:36,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:36,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1679 out of 2070 [2024-11-28 03:16:36,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 463 transitions, 4007 flow. Second operand has 3 states, 3 states have (on average 1680.3333333333333) internal successors, (5041), 3 states have internal predecessors, (5041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:36,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:36,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1679 of 2070 [2024-11-28 03:16:36,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:38,161 INFO L124 PetriNetUnfolderBase]: 111/2724 cut-off events. [2024-11-28 03:16:38,161 INFO L125 PetriNetUnfolderBase]: For 29206/29206 co-relation queries the response was YES. [2024-11-28 03:16:38,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4822 conditions, 2724 events. 111/2724 cut-off events. For 29206/29206 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7530 event pairs, 55 based on Foata normal form. 111/2610 useless extension candidates. Maximal degree in co-relation 4662. Up to 391 conditions per place. [2024-11-28 03:16:38,211 INFO L140 encePairwiseOnDemand]: 2064/2070 looper letters, 64 selfloop transitions, 2 changer transitions 1/459 dead transitions. [2024-11-28 03:16:38,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 459 transitions, 4131 flow [2024-11-28 03:16:38,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5107 transitions. [2024-11-28 03:16:38,215 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8223832528180355 [2024-11-28 03:16:38,215 INFO L175 Difference]: Start difference. First operand has 570 places, 463 transitions, 4007 flow. Second operand 3 states and 5107 transitions. [2024-11-28 03:16:38,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 459 transitions, 4131 flow [2024-11-28 03:16:38,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 570 places, 459 transitions, 1374 flow, removed 1378 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:38,305 INFO L231 Difference]: Finished difference. Result has 570 places, 458 transitions, 1244 flow [2024-11-28 03:16:38,305 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2070, PETRI_DIFFERENCE_MINUEND_FLOW=1242, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1244, PETRI_PLACES=570, PETRI_TRANSITIONS=458} [2024-11-28 03:16:38,306 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 0 predicate places. [2024-11-28 03:16:38,306 INFO L471 AbstractCegarLoop]: Abstraction has has 570 places, 458 transitions, 1244 flow [2024-11-28 03:16:38,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1680.3333333333333) internal successors, (5041), 3 states have internal predecessors, (5041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:38,307 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:38,307 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:38,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2024-11-28 03:16:38,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-28 03:16:38,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:38,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1493461006, now seen corresponding path program 1 times [2024-11-28 03:16:38,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:38,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340514246] [2024-11-28 03:16:38,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:38,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:38,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:38,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340514246] [2024-11-28 03:16:38,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340514246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:38,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:38,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:38,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806585236] [2024-11-28 03:16:38,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:38,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:38,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:38,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:38,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:38,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1569 out of 2070 [2024-11-28 03:16:38,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 458 transitions, 1244 flow. Second operand has 3 states, 3 states have (on average 1570.0) internal successors, (4710), 3 states have internal predecessors, (4710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:38,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:38,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1569 of 2070 [2024-11-28 03:16:38,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:40,137 INFO L124 PetriNetUnfolderBase]: 56/2445 cut-off events. [2024-11-28 03:16:40,137 INFO L125 PetriNetUnfolderBase]: For 1592/1592 co-relation queries the response was YES. [2024-11-28 03:16:40,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3056 conditions, 2445 events. 56/2445 cut-off events. For 1592/1592 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5544 event pairs, 0 based on Foata normal form. 55/2389 useless extension candidates. Maximal degree in co-relation 2978. Up to 280 conditions per place. [2024-11-28 03:16:40,193 INFO L140 encePairwiseOnDemand]: 2064/2070 looper letters, 62 selfloop transitions, 1 changer transitions 24/453 dead transitions. [2024-11-28 03:16:40,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 453 transitions, 1364 flow [2024-11-28 03:16:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:40,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4777 transitions. [2024-11-28 03:16:40,197 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769243156199678 [2024-11-28 03:16:40,197 INFO L175 Difference]: Start difference. First operand has 570 places, 458 transitions, 1244 flow. Second operand 3 states and 4777 transitions. [2024-11-28 03:16:40,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 453 transitions, 1364 flow [2024-11-28 03:16:40,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 453 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:16:40,204 INFO L231 Difference]: Finished difference. Result has 564 places, 429 transitions, 1182 flow [2024-11-28 03:16:40,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2070, PETRI_DIFFERENCE_MINUEND_FLOW=1230, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1182, PETRI_PLACES=564, PETRI_TRANSITIONS=429} [2024-11-28 03:16:40,205 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2024-11-28 03:16:40,205 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 429 transitions, 1182 flow [2024-11-28 03:16:40,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1570.0) internal successors, (4710), 3 states have internal predecessors, (4710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:40,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:40,206 INFO L206 CegarLoopForPetriNet]: trace histogram [55, 55, 55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:40,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2024-11-28 03:16:40,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-28 03:16:40,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:40,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1219714858, now seen corresponding path program 1 times [2024-11-28 03:16:40,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:40,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102534606] [2024-11-28 03:16:40,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:40,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:40,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:40,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:40,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102534606] [2024-11-28 03:16:40,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102534606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:40,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:40,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:16:40,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918459910] [2024-11-28 03:16:40,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:40,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:40,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:40,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:40,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:16:40,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1731 out of 2070 [2024-11-28 03:16:40,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 429 transitions, 1182 flow. Second operand has 5 states, 5 states have (on average 1743.8) internal successors, (8719), 5 states have internal predecessors, (8719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:40,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:40,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1731 of 2070 [2024-11-28 03:16:40,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:41,538 INFO L124 PetriNetUnfolderBase]: 0/1138 cut-off events. [2024-11-28 03:16:41,538 INFO L125 PetriNetUnfolderBase]: For 1591/1591 co-relation queries the response was YES. [2024-11-28 03:16:41,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 1138 events. 0/1138 cut-off events. For 1591/1591 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 676 event pairs, 0 based on Foata normal form. 1/1138 useless extension candidates. Maximal degree in co-relation 0. Up to 170 conditions per place. [2024-11-28 03:16:41,540 INFO L140 encePairwiseOnDemand]: 2065/2070 looper letters, 62 selfloop transitions, 2 changer transitions 3/431 dead transitions. [2024-11-28 03:16:41,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 431 transitions, 1320 flow [2024-11-28 03:16:41,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:16:41,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8723 transitions. [2024-11-28 03:16:41,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8428019323671497 [2024-11-28 03:16:41,545 INFO L175 Difference]: Start difference. First operand has 564 places, 429 transitions, 1182 flow. Second operand 5 states and 8723 transitions. [2024-11-28 03:16:41,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 431 transitions, 1320 flow [2024-11-28 03:16:41,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 431 transitions, 1319 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:41,552 INFO L231 Difference]: Finished difference. Result has 544 places, 428 transitions, 1187 flow [2024-11-28 03:16:41,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2070, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1187, PETRI_PLACES=544, PETRI_TRANSITIONS=428} [2024-11-28 03:16:41,552 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -26 predicate places. [2024-11-28 03:16:41,552 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 428 transitions, 1187 flow [2024-11-28 03:16:41,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1743.8) internal successors, (8719), 5 states have internal predecessors, (8719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:41,553 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:41,554 INFO L206 CegarLoopForPetriNet]: trace histogram [55, 55, 55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:41,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2024-11-28 03:16:41,554 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-28 03:16:41,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:41,560 INFO L85 PathProgramCache]: Analyzing trace with hash -411055956, now seen corresponding path program 1 times [2024-11-28 03:16:41,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:41,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105159964] [2024-11-28 03:16:41,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:41,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:41,711 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:16:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:42,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:16:42,286 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:16:42,286 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (61 of 62 remaining) [2024-11-28 03:16:42,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (60 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (59 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (58 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (57 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (56 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 62 remaining) [2024-11-28 03:16:42,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 62 remaining) [2024-11-28 03:16:42,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 62 remaining) [2024-11-28 03:16:42,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 62 remaining) [2024-11-28 03:16:42,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 62 remaining) [2024-11-28 03:16:42,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2024-11-28 03:16:42,290 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:16:42,291 WARN L246 ceAbstractionStarter]: 54 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:16:42,291 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 55 thread instances. [2024-11-28 03:16:42,572 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:16:42,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2106 places, 2107 transitions, 10594 flow [2024-11-28 03:16:44,681 INFO L124 PetriNetUnfolderBase]: 282/3615 cut-off events. [2024-11-28 03:16:44,681 INFO L125 PetriNetUnfolderBase]: For 29205/29205 co-relation queries the response was YES. [2024-11-28 03:16:44,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5433 conditions, 3615 events. 282/3615 cut-off events. For 29205/29205 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10562 event pairs, 0 based on Foata normal form. 0/3161 useless extension candidates. Maximal degree in co-relation 5322. Up to 112 conditions per place. [2024-11-28 03:16:44,800 INFO L82 GeneralOperation]: Start removeDead. Operand has 2106 places, 2107 transitions, 10594 flow [2024-11-28 03:16:44,812 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 579 places, 470 transitions, 4133 flow [2024-11-28 03:16:44,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:16:44,813 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:16:44,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-28 03:16:44,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:16:44,815 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:16:44,815 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:44,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:44,815 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:44,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2024-11-28 03:16:44,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:44,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2019405222, now seen corresponding path program 1 times [2024-11-28 03:16:44,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:44,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658946963] [2024-11-28 03:16:44,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:44,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:44,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:44,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658946963] [2024-11-28 03:16:44,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658946963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:44,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:44,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:44,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921899804] [2024-11-28 03:16:44,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:44,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:44,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:44,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:44,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:45,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1709 out of 2107 [2024-11-28 03:16:45,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 470 transitions, 4133 flow. Second operand has 3 states, 3 states have (on average 1710.3333333333333) internal successors, (5131), 3 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:45,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:45,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1709 of 2107 [2024-11-28 03:16:45,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:46,966 INFO L124 PetriNetUnfolderBase]: 113/2773 cut-off events. [2024-11-28 03:16:46,966 INFO L125 PetriNetUnfolderBase]: For 30801/30801 co-relation queries the response was YES. [2024-11-28 03:16:47,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4937 conditions, 2773 events. 113/2773 cut-off events. For 30801/30801 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7698 event pairs, 56 based on Foata normal form. 113/2657 useless extension candidates. Maximal degree in co-relation 4776. Up to 398 conditions per place. [2024-11-28 03:16:47,017 INFO L140 encePairwiseOnDemand]: 2101/2107 looper letters, 65 selfloop transitions, 2 changer transitions 1/466 dead transitions. [2024-11-28 03:16:47,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 466 transitions, 4259 flow [2024-11-28 03:16:47,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:47,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:47,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5198 transitions. [2024-11-28 03:16:47,021 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8223382376206296 [2024-11-28 03:16:47,022 INFO L175 Difference]: Start difference. First operand has 579 places, 470 transitions, 4133 flow. Second operand 3 states and 5198 transitions. [2024-11-28 03:16:47,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 466 transitions, 4259 flow [2024-11-28 03:16:47,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 466 transitions, 1396 flow, removed 1431 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:47,097 INFO L231 Difference]: Finished difference. Result has 579 places, 465 transitions, 1264 flow [2024-11-28 03:16:47,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2107, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1264, PETRI_PLACES=579, PETRI_TRANSITIONS=465} [2024-11-28 03:16:47,097 INFO L279 CegarLoopForPetriNet]: 579 programPoint places, 0 predicate places. [2024-11-28 03:16:47,097 INFO L471 AbstractCegarLoop]: Abstraction has has 579 places, 465 transitions, 1264 flow [2024-11-28 03:16:47,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1710.3333333333333) internal successors, (5131), 3 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:47,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:47,098 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:47,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2024-11-28 03:16:47,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2024-11-28 03:16:47,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:47,099 INFO L85 PathProgramCache]: Analyzing trace with hash 16464334, now seen corresponding path program 1 times [2024-11-28 03:16:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:47,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330863940] [2024-11-28 03:16:47,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:47,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:47,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:47,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330863940] [2024-11-28 03:16:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330863940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:47,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:47,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:47,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019458621] [2024-11-28 03:16:47,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:47,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:47,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:47,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:47,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:47,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1597 out of 2107 [2024-11-28 03:16:47,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 465 transitions, 1264 flow. Second operand has 3 states, 3 states have (on average 1598.0) internal successors, (4794), 3 states have internal predecessors, (4794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:47,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:47,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1597 of 2107 [2024-11-28 03:16:47,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:48,934 INFO L124 PetriNetUnfolderBase]: 57/2489 cut-off events. [2024-11-28 03:16:48,934 INFO L125 PetriNetUnfolderBase]: For 1649/1649 co-relation queries the response was YES. [2024-11-28 03:16:48,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3111 conditions, 2489 events. 57/2489 cut-off events. For 1649/1649 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5703 event pairs, 0 based on Foata normal form. 56/2432 useless extension candidates. Maximal degree in co-relation 3032. Up to 285 conditions per place. [2024-11-28 03:16:48,989 INFO L140 encePairwiseOnDemand]: 2101/2107 looper letters, 63 selfloop transitions, 1 changer transitions 24/460 dead transitions. [2024-11-28 03:16:48,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 460 transitions, 1386 flow [2024-11-28 03:16:48,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:48,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4862 transitions. [2024-11-28 03:16:48,993 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7691820914412276 [2024-11-28 03:16:48,993 INFO L175 Difference]: Start difference. First operand has 579 places, 465 transitions, 1264 flow. Second operand 3 states and 4862 transitions. [2024-11-28 03:16:48,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 460 transitions, 1386 flow [2024-11-28 03:16:48,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 460 transitions, 1382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:16:48,999 INFO L231 Difference]: Finished difference. Result has 573 places, 436 transitions, 1202 flow [2024-11-28 03:16:48,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2107, PETRI_DIFFERENCE_MINUEND_FLOW=1250, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1202, PETRI_PLACES=573, PETRI_TRANSITIONS=436} [2024-11-28 03:16:49,000 INFO L279 CegarLoopForPetriNet]: 579 programPoint places, -6 predicate places. [2024-11-28 03:16:49,000 INFO L471 AbstractCegarLoop]: Abstraction has has 573 places, 436 transitions, 1202 flow [2024-11-28 03:16:49,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1598.0) internal successors, (4794), 3 states have internal predecessors, (4794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:49,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:49,000 INFO L206 CegarLoopForPetriNet]: trace histogram [56, 56, 56, 56, 56, 56, 56, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:49,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2024-11-28 03:16:49,001 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2024-11-28 03:16:49,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash 113471627, now seen corresponding path program 1 times [2024-11-28 03:16:49,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:49,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163842810] [2024-11-28 03:16:49,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:49,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:49,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:49,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163842810] [2024-11-28 03:16:49,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163842810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:49,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:49,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:16:49,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740449145] [2024-11-28 03:16:49,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:49,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:49,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:49,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:49,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:16:49,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1762 out of 2107 [2024-11-28 03:16:49,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 436 transitions, 1202 flow. Second operand has 5 states, 5 states have (on average 1775.0) internal successors, (8875), 5 states have internal predecessors, (8875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:49,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:49,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1762 of 2107 [2024-11-28 03:16:49,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:50,627 INFO L124 PetriNetUnfolderBase]: 0/1158 cut-off events. [2024-11-28 03:16:50,627 INFO L125 PetriNetUnfolderBase]: For 1648/1648 co-relation queries the response was YES. [2024-11-28 03:16:50,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 1158 events. 0/1158 cut-off events. For 1648/1648 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 687 event pairs, 0 based on Foata normal form. 1/1158 useless extension candidates. Maximal degree in co-relation 0. Up to 173 conditions per place. [2024-11-28 03:16:50,629 INFO L140 encePairwiseOnDemand]: 2102/2107 looper letters, 63 selfloop transitions, 2 changer transitions 3/438 dead transitions. [2024-11-28 03:16:50,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 438 transitions, 1342 flow [2024-11-28 03:16:50,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:50,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:16:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8879 transitions. [2024-11-28 03:16:50,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8428096820123399 [2024-11-28 03:16:50,634 INFO L175 Difference]: Start difference. First operand has 573 places, 436 transitions, 1202 flow. Second operand 5 states and 8879 transitions. [2024-11-28 03:16:50,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 438 transitions, 1342 flow [2024-11-28 03:16:50,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 438 transitions, 1341 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:50,642 INFO L231 Difference]: Finished difference. Result has 553 places, 435 transitions, 1207 flow [2024-11-28 03:16:50,642 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2107, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1207, PETRI_PLACES=553, PETRI_TRANSITIONS=435} [2024-11-28 03:16:50,642 INFO L279 CegarLoopForPetriNet]: 579 programPoint places, -26 predicate places. [2024-11-28 03:16:50,642 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 435 transitions, 1207 flow [2024-11-28 03:16:50,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1775.0) internal successors, (8875), 5 states have internal predecessors, (8875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:50,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:50,645 INFO L206 CegarLoopForPetriNet]: trace histogram [56, 56, 56, 56, 56, 56, 56, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:50,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2024-11-28 03:16:50,645 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2024-11-28 03:16:50,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:50,658 INFO L85 PathProgramCache]: Analyzing trace with hash -990117338, now seen corresponding path program 1 times [2024-11-28 03:16:50,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:50,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744688936] [2024-11-28 03:16:50,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:50,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:50,918 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:16:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:16:51,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:16:51,613 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2024-11-28 03:16:51,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2024-11-28 03:16:51,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2024-11-28 03:16:51,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2024-11-28 03:16:51,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2024-11-28 03:16:51,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2024-11-28 03:16:51,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2024-11-28 03:16:51,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2024-11-28 03:16:51,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2024-11-28 03:16:51,617 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:16:51,617 WARN L246 ceAbstractionStarter]: 55 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:16:51,617 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 56 thread instances. [2024-11-28 03:16:51,916 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:16:51,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2143 places, 2144 transitions, 10896 flow [2024-11-28 03:16:54,016 INFO L124 PetriNetUnfolderBase]: 287/3679 cut-off events. [2024-11-28 03:16:54,016 INFO L125 PetriNetUnfolderBase]: For 30800/30800 co-relation queries the response was YES. [2024-11-28 03:16:54,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5558 conditions, 3679 events. 287/3679 cut-off events. For 30800/30800 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10592 event pairs, 0 based on Foata normal form. 0/3217 useless extension candidates. Maximal degree in co-relation 5445. Up to 114 conditions per place. [2024-11-28 03:16:54,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 2143 places, 2144 transitions, 10896 flow [2024-11-28 03:16:54,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 588 places, 477 transitions, 4261 flow [2024-11-28 03:16:54,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:16:54,140 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:16:54,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-11-28 03:16:54,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:16:54,141 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:16:54,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:54,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:54,142 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:54,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-28 03:16:54,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:54,142 INFO L85 PathProgramCache]: Analyzing trace with hash 810683814, now seen corresponding path program 1 times [2024-11-28 03:16:54,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:54,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559169529] [2024-11-28 03:16:54,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:54,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:54,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:54,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:54,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559169529] [2024-11-28 03:16:54,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559169529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:54,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:54,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:54,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253790100] [2024-11-28 03:16:54,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:54,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:54,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:54,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:54,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:54,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1739 out of 2144 [2024-11-28 03:16:54,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 477 transitions, 4261 flow. Second operand has 3 states, 3 states have (on average 1740.3333333333333) internal successors, (5221), 3 states have internal predecessors, (5221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:54,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:54,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1739 of 2144 [2024-11-28 03:16:54,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:56,477 INFO L124 PetriNetUnfolderBase]: 115/2822 cut-off events. [2024-11-28 03:16:56,477 INFO L125 PetriNetUnfolderBase]: For 32453/32453 co-relation queries the response was YES. [2024-11-28 03:16:56,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5053 conditions, 2822 events. 115/2822 cut-off events. For 32453/32453 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7820 event pairs, 57 based on Foata normal form. 115/2704 useless extension candidates. Maximal degree in co-relation 4891. Up to 405 conditions per place. [2024-11-28 03:16:56,530 INFO L140 encePairwiseOnDemand]: 2138/2144 looper letters, 66 selfloop transitions, 2 changer transitions 1/473 dead transitions. [2024-11-28 03:16:56,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 473 transitions, 4389 flow [2024-11-28 03:16:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:56,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5289 transitions. [2024-11-28 03:16:56,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8222947761194029 [2024-11-28 03:16:56,534 INFO L175 Difference]: Start difference. First operand has 588 places, 477 transitions, 4261 flow. Second operand 3 states and 5289 transitions. [2024-11-28 03:16:56,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 473 transitions, 4389 flow [2024-11-28 03:16:56,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 473 transitions, 1418 flow, removed 1485 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:56,605 INFO L231 Difference]: Finished difference. Result has 588 places, 472 transitions, 1284 flow [2024-11-28 03:16:56,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2144, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1284, PETRI_PLACES=588, PETRI_TRANSITIONS=472} [2024-11-28 03:16:56,605 INFO L279 CegarLoopForPetriNet]: 588 programPoint places, 0 predicate places. [2024-11-28 03:16:56,605 INFO L471 AbstractCegarLoop]: Abstraction has has 588 places, 472 transitions, 1284 flow [2024-11-28 03:16:56,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1740.3333333333333) internal successors, (5221), 3 states have internal predecessors, (5221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:56,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:56,606 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:56,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2024-11-28 03:16:56,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-28 03:16:56,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:56,607 INFO L85 PathProgramCache]: Analyzing trace with hash -340872754, now seen corresponding path program 1 times [2024-11-28 03:16:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:56,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141852778] [2024-11-28 03:16:56,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:56,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:56,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:56,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141852778] [2024-11-28 03:16:56,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141852778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:56,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:56,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:56,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063891994] [2024-11-28 03:16:56,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:56,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:56,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:56,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:56,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:56,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1625 out of 2144 [2024-11-28 03:16:56,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 472 transitions, 1284 flow. Second operand has 3 states, 3 states have (on average 1626.0) internal successors, (4878), 3 states have internal predecessors, (4878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:56,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:56,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1625 of 2144 [2024-11-28 03:16:56,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:58,368 INFO L124 PetriNetUnfolderBase]: 58/2533 cut-off events. [2024-11-28 03:16:58,368 INFO L125 PetriNetUnfolderBase]: For 1707/1707 co-relation queries the response was YES. [2024-11-28 03:16:58,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3166 conditions, 2533 events. 58/2533 cut-off events. For 1707/1707 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5747 event pairs, 0 based on Foata normal form. 57/2475 useless extension candidates. Maximal degree in co-relation 3086. Up to 290 conditions per place. [2024-11-28 03:16:58,419 INFO L140 encePairwiseOnDemand]: 2138/2144 looper letters, 64 selfloop transitions, 1 changer transitions 24/467 dead transitions. [2024-11-28 03:16:58,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 467 transitions, 1408 flow [2024-11-28 03:16:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4947 transitions. [2024-11-28 03:16:58,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7691231343283582 [2024-11-28 03:16:58,424 INFO L175 Difference]: Start difference. First operand has 588 places, 472 transitions, 1284 flow. Second operand 3 states and 4947 transitions. [2024-11-28 03:16:58,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 467 transitions, 1408 flow [2024-11-28 03:16:58,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 467 transitions, 1404 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:16:58,431 INFO L231 Difference]: Finished difference. Result has 582 places, 443 transitions, 1222 flow [2024-11-28 03:16:58,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2144, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1222, PETRI_PLACES=582, PETRI_TRANSITIONS=443} [2024-11-28 03:16:58,431 INFO L279 CegarLoopForPetriNet]: 588 programPoint places, -6 predicate places. [2024-11-28 03:16:58,431 INFO L471 AbstractCegarLoop]: Abstraction has has 582 places, 443 transitions, 1222 flow [2024-11-28 03:16:58,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1626.0) internal successors, (4878), 3 states have internal predecessors, (4878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:58,432 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:58,432 INFO L206 CegarLoopForPetriNet]: trace histogram [57, 57, 57, 57, 57, 57, 57, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:58,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2024-11-28 03:16:58,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-28 03:16:58,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:58,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1898902354, now seen corresponding path program 1 times [2024-11-28 03:16:58,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:58,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745033616] [2024-11-28 03:16:58,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:58,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:16:58,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745033616] [2024-11-28 03:16:58,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745033616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:58,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:58,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:16:58,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968344700] [2024-11-28 03:16:58,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:58,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:16:58,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:58,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:16:58,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:16:59,084 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1793 out of 2144 [2024-11-28 03:16:59,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 443 transitions, 1222 flow. Second operand has 5 states, 5 states have (on average 1806.2) internal successors, (9031), 5 states have internal predecessors, (9031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:59,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:59,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1793 of 2144 [2024-11-28 03:16:59,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:59,843 INFO L124 PetriNetUnfolderBase]: 0/1178 cut-off events. [2024-11-28 03:16:59,843 INFO L125 PetriNetUnfolderBase]: For 1706/1706 co-relation queries the response was YES. [2024-11-28 03:16:59,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 1178 events. 0/1178 cut-off events. For 1706/1706 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 699 event pairs, 0 based on Foata normal form. 1/1178 useless extension candidates. Maximal degree in co-relation 0. Up to 176 conditions per place. [2024-11-28 03:16:59,845 INFO L140 encePairwiseOnDemand]: 2139/2144 looper letters, 64 selfloop transitions, 2 changer transitions 3/445 dead transitions. [2024-11-28 03:16:59,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 445 transitions, 1364 flow [2024-11-28 03:16:59,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:16:59,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:16:59,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9035 transitions. [2024-11-28 03:16:59,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8428171641791045 [2024-11-28 03:16:59,851 INFO L175 Difference]: Start difference. First operand has 582 places, 443 transitions, 1222 flow. Second operand 5 states and 9035 transitions. [2024-11-28 03:16:59,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 445 transitions, 1364 flow [2024-11-28 03:16:59,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 445 transitions, 1363 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:59,858 INFO L231 Difference]: Finished difference. Result has 562 places, 442 transitions, 1227 flow [2024-11-28 03:16:59,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2144, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1227, PETRI_PLACES=562, PETRI_TRANSITIONS=442} [2024-11-28 03:16:59,859 INFO L279 CegarLoopForPetriNet]: 588 programPoint places, -26 predicate places. [2024-11-28 03:16:59,859 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 442 transitions, 1227 flow [2024-11-28 03:16:59,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1806.2) internal successors, (9031), 5 states have internal predecessors, (9031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:16:59,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:59,860 INFO L206 CegarLoopForPetriNet]: trace histogram [57, 57, 57, 57, 57, 57, 57, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:59,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2024-11-28 03:16:59,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-28 03:16:59,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:59,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1099898199, now seen corresponding path program 1 times [2024-11-28 03:16:59,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:59,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270134101] [2024-11-28 03:16:59,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:59,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:00,053 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:17:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:00,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:17:00,824 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (63 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2024-11-28 03:17:00,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2024-11-28 03:17:00,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2024-11-28 03:17:00,827 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2024-11-28 03:17:00,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2024-11-28 03:17:00,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2024-11-28 03:17:00,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2024-11-28 03:17:00,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2024-11-28 03:17:00,829 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:17:00,829 WARN L246 ceAbstractionStarter]: 56 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:17:00,829 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 57 thread instances. [2024-11-28 03:17:01,140 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:17:01,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2180 places, 2181 transitions, 11202 flow [2024-11-28 03:17:03,353 INFO L124 PetriNetUnfolderBase]: 292/3743 cut-off events. [2024-11-28 03:17:03,353 INFO L125 PetriNetUnfolderBase]: For 32452/32452 co-relation queries the response was YES. [2024-11-28 03:17:03,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5684 conditions, 3743 events. 292/3743 cut-off events. For 32452/32452 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10688 event pairs, 0 based on Foata normal form. 0/3273 useless extension candidates. Maximal degree in co-relation 5569. Up to 116 conditions per place. [2024-11-28 03:17:03,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 2180 places, 2181 transitions, 11202 flow [2024-11-28 03:17:03,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 484 transitions, 4391 flow [2024-11-28 03:17:03,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:03,487 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:03,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-11-28 03:17:03,489 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:17:03,489 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:17:03,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:17:03,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:03,489 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:03,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2024-11-28 03:17:03,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:03,489 INFO L85 PathProgramCache]: Analyzing trace with hash -446942554, now seen corresponding path program 1 times [2024-11-28 03:17:03,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:03,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849387372] [2024-11-28 03:17:03,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:03,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:03,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:03,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849387372] [2024-11-28 03:17:03,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849387372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:03,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:03,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:03,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624931149] [2024-11-28 03:17:03,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:03,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:03,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:03,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:03,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:03,840 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1769 out of 2181 [2024-11-28 03:17:03,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 484 transitions, 4391 flow. Second operand has 3 states, 3 states have (on average 1770.3333333333333) internal successors, (5311), 3 states have internal predecessors, (5311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:03,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:03,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1769 of 2181 [2024-11-28 03:17:03,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:05,680 INFO L124 PetriNetUnfolderBase]: 117/2871 cut-off events. [2024-11-28 03:17:05,680 INFO L125 PetriNetUnfolderBase]: For 34163/34163 co-relation queries the response was YES. [2024-11-28 03:17:05,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5170 conditions, 2871 events. 117/2871 cut-off events. For 34163/34163 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7949 event pairs, 58 based on Foata normal form. 117/2751 useless extension candidates. Maximal degree in co-relation 5007. Up to 412 conditions per place. [2024-11-28 03:17:05,739 INFO L140 encePairwiseOnDemand]: 2175/2181 looper letters, 67 selfloop transitions, 2 changer transitions 1/480 dead transitions. [2024-11-28 03:17:05,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 480 transitions, 4521 flow [2024-11-28 03:17:05,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:05,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:17:05,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5380 transitions. [2024-11-28 03:17:05,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8222527892404096 [2024-11-28 03:17:05,742 INFO L175 Difference]: Start difference. First operand has 597 places, 484 transitions, 4391 flow. Second operand 3 states and 5380 transitions. [2024-11-28 03:17:05,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 480 transitions, 4521 flow [2024-11-28 03:17:05,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 480 transitions, 1440 flow, removed 1540 selfloop flow, removed 1 redundant places. [2024-11-28 03:17:05,877 INFO L231 Difference]: Finished difference. Result has 597 places, 479 transitions, 1304 flow [2024-11-28 03:17:05,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2181, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1304, PETRI_PLACES=597, PETRI_TRANSITIONS=479} [2024-11-28 03:17:05,877 INFO L279 CegarLoopForPetriNet]: 597 programPoint places, 0 predicate places. [2024-11-28 03:17:05,877 INFO L471 AbstractCegarLoop]: Abstraction has has 597 places, 479 transitions, 1304 flow [2024-11-28 03:17:05,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1770.3333333333333) internal successors, (5311), 3 states have internal predecessors, (5311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:05,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:05,878 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:05,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2024-11-28 03:17:05,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2024-11-28 03:17:05,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:05,879 INFO L85 PathProgramCache]: Analyzing trace with hash 421449742, now seen corresponding path program 1 times [2024-11-28 03:17:05,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:05,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527361767] [2024-11-28 03:17:05,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:05,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:05,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:05,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:05,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527361767] [2024-11-28 03:17:05,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527361767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:05,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:05,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:05,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163500344] [2024-11-28 03:17:05,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:05,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:05,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:05,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:05,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:06,164 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1653 out of 2181 [2024-11-28 03:17:06,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 479 transitions, 1304 flow. Second operand has 3 states, 3 states have (on average 1654.0) internal successors, (4962), 3 states have internal predecessors, (4962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:06,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:06,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1653 of 2181 [2024-11-28 03:17:06,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:07,845 INFO L124 PetriNetUnfolderBase]: 59/2577 cut-off events. [2024-11-28 03:17:07,845 INFO L125 PetriNetUnfolderBase]: For 1766/1766 co-relation queries the response was YES. [2024-11-28 03:17:07,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3221 conditions, 2577 events. 59/2577 cut-off events. For 1766/1766 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5849 event pairs, 0 based on Foata normal form. 58/2518 useless extension candidates. Maximal degree in co-relation 3140. Up to 295 conditions per place. [2024-11-28 03:17:07,905 INFO L140 encePairwiseOnDemand]: 2175/2181 looper letters, 65 selfloop transitions, 1 changer transitions 24/474 dead transitions. [2024-11-28 03:17:07,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 474 transitions, 1430 flow [2024-11-28 03:17:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:07,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:17:07,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5032 transitions. [2024-11-28 03:17:07,908 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7690661775943757 [2024-11-28 03:17:07,908 INFO L175 Difference]: Start difference. First operand has 597 places, 479 transitions, 1304 flow. Second operand 3 states and 5032 transitions. [2024-11-28 03:17:07,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 474 transitions, 1430 flow [2024-11-28 03:17:07,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 474 transitions, 1426 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:17:07,915 INFO L231 Difference]: Finished difference. Result has 591 places, 450 transitions, 1242 flow [2024-11-28 03:17:07,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2181, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=589, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1242, PETRI_PLACES=591, PETRI_TRANSITIONS=450} [2024-11-28 03:17:07,915 INFO L279 CegarLoopForPetriNet]: 597 programPoint places, -6 predicate places. [2024-11-28 03:17:07,916 INFO L471 AbstractCegarLoop]: Abstraction has has 591 places, 450 transitions, 1242 flow [2024-11-28 03:17:07,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1654.0) internal successors, (4962), 3 states have internal predecessors, (4962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:07,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:07,917 INFO L206 CegarLoopForPetriNet]: trace histogram [58, 58, 58, 58, 58, 58, 58, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:07,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2024-11-28 03:17:07,917 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2024-11-28 03:17:07,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:07,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1566710433, now seen corresponding path program 1 times [2024-11-28 03:17:07,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:07,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103415227] [2024-11-28 03:17:07,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:07,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:08,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:08,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:08,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103415227] [2024-11-28 03:17:08,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103415227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:08,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:08,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:17:08,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752301103] [2024-11-28 03:17:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:08,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:08,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:08,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:08,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1824 out of 2181 [2024-11-28 03:17:08,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 450 transitions, 1242 flow. Second operand has 5 states, 5 states have (on average 1837.4) internal successors, (9187), 5 states have internal predecessors, (9187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:08,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:08,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1824 of 2181 [2024-11-28 03:17:08,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:09,567 INFO L124 PetriNetUnfolderBase]: 0/1198 cut-off events. [2024-11-28 03:17:09,567 INFO L125 PetriNetUnfolderBase]: For 1765/1765 co-relation queries the response was YES. [2024-11-28 03:17:09,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1198 events. 0/1198 cut-off events. For 1765/1765 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 711 event pairs, 0 based on Foata normal form. 1/1198 useless extension candidates. Maximal degree in co-relation 0. Up to 179 conditions per place. [2024-11-28 03:17:09,569 INFO L140 encePairwiseOnDemand]: 2176/2181 looper letters, 65 selfloop transitions, 2 changer transitions 3/452 dead transitions. [2024-11-28 03:17:09,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 452 transitions, 1386 flow [2024-11-28 03:17:09,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:17:09,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:17:09,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9191 transitions. [2024-11-28 03:17:09,575 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8428243924805136 [2024-11-28 03:17:09,575 INFO L175 Difference]: Start difference. First operand has 591 places, 450 transitions, 1242 flow. Second operand 5 states and 9191 transitions. [2024-11-28 03:17:09,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 452 transitions, 1386 flow [2024-11-28 03:17:09,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 452 transitions, 1385 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:17:09,582 INFO L231 Difference]: Finished difference. Result has 571 places, 449 transitions, 1247 flow [2024-11-28 03:17:09,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2181, PETRI_DIFFERENCE_MINUEND_FLOW=1241, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1247, PETRI_PLACES=571, PETRI_TRANSITIONS=449} [2024-11-28 03:17:09,583 INFO L279 CegarLoopForPetriNet]: 597 programPoint places, -26 predicate places. [2024-11-28 03:17:09,583 INFO L471 AbstractCegarLoop]: Abstraction has has 571 places, 449 transitions, 1247 flow [2024-11-28 03:17:09,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1837.4) internal successors, (9187), 5 states have internal predecessors, (9187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:09,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:09,584 INFO L206 CegarLoopForPetriNet]: trace histogram [58, 58, 58, 58, 58, 58, 58, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:09,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2024-11-28 03:17:09,585 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2024-11-28 03:17:09,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1246652565, now seen corresponding path program 1 times [2024-11-28 03:17:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903029352] [2024-11-28 03:17:09,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:09,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:09,921 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:17:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:10,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:17:10,582 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (58 of 65 remaining) [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-11-28 03:17:10,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-11-28 03:17:10,583 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-11-28 03:17:10,584 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-11-28 03:17:10,585 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-11-28 03:17:10,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-11-28 03:17:10,586 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-11-28 03:17:10,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2024-11-28 03:17:10,586 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:17:10,586 WARN L246 ceAbstractionStarter]: 57 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:17:10,586 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 58 thread instances. [2024-11-28 03:17:10,872 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:17:10,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2217 places, 2218 transitions, 11512 flow [2024-11-28 03:17:13,111 INFO L124 PetriNetUnfolderBase]: 297/3807 cut-off events. [2024-11-28 03:17:13,111 INFO L125 PetriNetUnfolderBase]: For 34162/34162 co-relation queries the response was YES. [2024-11-28 03:17:13,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5811 conditions, 3807 events. 297/3807 cut-off events. For 34162/34162 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 11071 event pairs, 0 based on Foata normal form. 0/3329 useless extension candidates. Maximal degree in co-relation 5694. Up to 118 conditions per place. [2024-11-28 03:17:13,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 2217 places, 2218 transitions, 11512 flow [2024-11-28 03:17:13,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 606 places, 491 transitions, 4523 flow [2024-11-28 03:17:13,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:13,250 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:13,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2024-11-28 03:17:13,251 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:17:13,251 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:17:13,252 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:17:13,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:13,252 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:13,252 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2024-11-28 03:17:13,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1753473882, now seen corresponding path program 1 times [2024-11-28 03:17:13,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:13,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073833850] [2024-11-28 03:17:13,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:13,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:13,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:13,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073833850] [2024-11-28 03:17:13,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073833850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:13,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:13,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:13,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941205866] [2024-11-28 03:17:13,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:13,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:13,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:13,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:13,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:13,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1799 out of 2218 [2024-11-28 03:17:13,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 491 transitions, 4523 flow. Second operand has 3 states, 3 states have (on average 1800.3333333333333) internal successors, (5401), 3 states have internal predecessors, (5401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:13,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:13,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1799 of 2218 [2024-11-28 03:17:13,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:15,834 INFO L124 PetriNetUnfolderBase]: 119/2920 cut-off events. [2024-11-28 03:17:15,835 INFO L125 PetriNetUnfolderBase]: For 35932/35932 co-relation queries the response was YES. [2024-11-28 03:17:15,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5288 conditions, 2920 events. 119/2920 cut-off events. For 35932/35932 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8072 event pairs, 59 based on Foata normal form. 119/2798 useless extension candidates. Maximal degree in co-relation 5124. Up to 419 conditions per place. [2024-11-28 03:17:15,884 INFO L140 encePairwiseOnDemand]: 2212/2218 looper letters, 68 selfloop transitions, 2 changer transitions 1/487 dead transitions. [2024-11-28 03:17:15,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 487 transitions, 4655 flow [2024-11-28 03:17:15,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:15,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:17:15,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5471 transitions. [2024-11-28 03:17:15,887 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8222122031860535 [2024-11-28 03:17:15,887 INFO L175 Difference]: Start difference. First operand has 606 places, 491 transitions, 4523 flow. Second operand 3 states and 5471 transitions. [2024-11-28 03:17:15,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 487 transitions, 4655 flow [2024-11-28 03:17:15,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 487 transitions, 1462 flow, removed 1596 selfloop flow, removed 1 redundant places. [2024-11-28 03:17:15,958 INFO L231 Difference]: Finished difference. Result has 606 places, 486 transitions, 1324 flow [2024-11-28 03:17:15,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2218, PETRI_DIFFERENCE_MINUEND_FLOW=1322, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1324, PETRI_PLACES=606, PETRI_TRANSITIONS=486} [2024-11-28 03:17:15,958 INFO L279 CegarLoopForPetriNet]: 606 programPoint places, 0 predicate places. [2024-11-28 03:17:15,958 INFO L471 AbstractCegarLoop]: Abstraction has has 606 places, 486 transitions, 1324 flow [2024-11-28 03:17:15,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1800.3333333333333) internal successors, (5401), 3 states have internal predecessors, (5401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:15,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:15,959 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:15,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2024-11-28 03:17:15,959 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2024-11-28 03:17:15,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:15,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1991535474, now seen corresponding path program 1 times [2024-11-28 03:17:15,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:15,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123233998] [2024-11-28 03:17:15,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:15,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:16,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:16,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:16,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123233998] [2024-11-28 03:17:16,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123233998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:16,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:16,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:16,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533747038] [2024-11-28 03:17:16,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:16,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:16,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:16,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:16,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:16,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1681 out of 2218 [2024-11-28 03:17:16,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 486 transitions, 1324 flow. Second operand has 3 states, 3 states have (on average 1682.0) internal successors, (5046), 3 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:16,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:16,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1681 of 2218 [2024-11-28 03:17:16,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:18,239 INFO L124 PetriNetUnfolderBase]: 60/2621 cut-off events. [2024-11-28 03:17:18,239 INFO L125 PetriNetUnfolderBase]: For 1826/1826 co-relation queries the response was YES. [2024-11-28 03:17:18,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3276 conditions, 2621 events. 60/2621 cut-off events. For 1826/1826 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 5951 event pairs, 0 based on Foata normal form. 59/2561 useless extension candidates. Maximal degree in co-relation 3194. Up to 300 conditions per place. [2024-11-28 03:17:18,277 INFO L140 encePairwiseOnDemand]: 2212/2218 looper letters, 66 selfloop transitions, 1 changer transitions 24/481 dead transitions. [2024-11-28 03:17:18,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 481 transitions, 1452 flow [2024-11-28 03:17:18,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:18,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:17:18,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5117 transitions. [2024-11-28 03:17:18,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7690111211301472 [2024-11-28 03:17:18,283 INFO L175 Difference]: Start difference. First operand has 606 places, 486 transitions, 1324 flow. Second operand 3 states and 5117 transitions. [2024-11-28 03:17:18,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 481 transitions, 1452 flow [2024-11-28 03:17:18,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 481 transitions, 1448 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:17:18,292 INFO L231 Difference]: Finished difference. Result has 600 places, 457 transitions, 1262 flow [2024-11-28 03:17:18,292 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2218, PETRI_DIFFERENCE_MINUEND_FLOW=1310, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1262, PETRI_PLACES=600, PETRI_TRANSITIONS=457} [2024-11-28 03:17:18,293 INFO L279 CegarLoopForPetriNet]: 606 programPoint places, -6 predicate places. [2024-11-28 03:17:18,293 INFO L471 AbstractCegarLoop]: Abstraction has has 600 places, 457 transitions, 1262 flow [2024-11-28 03:17:18,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1682.0) internal successors, (5046), 3 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:18,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:18,294 INFO L206 CegarLoopForPetriNet]: trace histogram [59, 59, 59, 59, 59, 59, 59, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:18,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2024-11-28 03:17:18,294 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2024-11-28 03:17:18,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:18,312 INFO L85 PathProgramCache]: Analyzing trace with hash -215520578, now seen corresponding path program 1 times [2024-11-28 03:17:18,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:18,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738155363] [2024-11-28 03:17:18,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:18,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:18,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:18,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738155363] [2024-11-28 03:17:18,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738155363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:18,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:18,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:17:18,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029657921] [2024-11-28 03:17:18,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:18,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:18,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:18,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:18,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:19,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1855 out of 2218 [2024-11-28 03:17:19,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 457 transitions, 1262 flow. Second operand has 5 states, 5 states have (on average 1868.6) internal successors, (9343), 5 states have internal predecessors, (9343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:19,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:19,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1855 of 2218 [2024-11-28 03:17:19,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:20,241 INFO L124 PetriNetUnfolderBase]: 0/1218 cut-off events. [2024-11-28 03:17:20,241 INFO L125 PetriNetUnfolderBase]: For 1825/1825 co-relation queries the response was YES. [2024-11-28 03:17:20,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1639 conditions, 1218 events. 0/1218 cut-off events. For 1825/1825 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 723 event pairs, 0 based on Foata normal form. 1/1218 useless extension candidates. Maximal degree in co-relation 0. Up to 182 conditions per place. [2024-11-28 03:17:20,243 INFO L140 encePairwiseOnDemand]: 2213/2218 looper letters, 66 selfloop transitions, 2 changer transitions 3/459 dead transitions. [2024-11-28 03:17:20,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 459 transitions, 1408 flow [2024-11-28 03:17:20,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:17:20,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:17:20,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9347 transitions. [2024-11-28 03:17:20,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8428313796212804 [2024-11-28 03:17:20,253 INFO L175 Difference]: Start difference. First operand has 600 places, 457 transitions, 1262 flow. Second operand 5 states and 9347 transitions. [2024-11-28 03:17:20,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 459 transitions, 1408 flow [2024-11-28 03:17:20,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 459 transitions, 1407 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:17:20,262 INFO L231 Difference]: Finished difference. Result has 580 places, 456 transitions, 1267 flow [2024-11-28 03:17:20,263 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2218, PETRI_DIFFERENCE_MINUEND_FLOW=1261, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1267, PETRI_PLACES=580, PETRI_TRANSITIONS=456} [2024-11-28 03:17:20,263 INFO L279 CegarLoopForPetriNet]: 606 programPoint places, -26 predicate places. [2024-11-28 03:17:20,263 INFO L471 AbstractCegarLoop]: Abstraction has has 580 places, 456 transitions, 1267 flow [2024-11-28 03:17:20,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1868.6) internal successors, (9343), 5 states have internal predecessors, (9343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:20,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:20,265 INFO L206 CegarLoopForPetriNet]: trace histogram [59, 59, 59, 59, 59, 59, 59, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:20,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2024-11-28 03:17:20,265 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2024-11-28 03:17:20,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:20,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1761234358, now seen corresponding path program 1 times [2024-11-28 03:17:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307126416] [2024-11-28 03:17:20,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:20,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:20,582 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:17:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:17:21,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:17:21,541 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:17:21,541 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (65 of 66 remaining) [2024-11-28 03:17:21,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (64 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (63 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (62 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (61 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (60 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (58 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (57 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (56 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (55 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (54 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (53 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (52 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (51 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (50 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (49 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 66 remaining) [2024-11-28 03:17:21,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 66 remaining) [2024-11-28 03:17:21,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 66 remaining) [2024-11-28 03:17:21,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 66 remaining) [2024-11-28 03:17:21,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 66 remaining) [2024-11-28 03:17:21,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2024-11-28 03:17:21,546 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:17:21,546 WARN L246 ceAbstractionStarter]: 58 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:17:21,546 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 59 thread instances. [2024-11-28 03:17:21,850 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:17:21,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2254 places, 2255 transitions, 11826 flow [2024-11-28 03:17:24,683 INFO L124 PetriNetUnfolderBase]: 302/3871 cut-off events. [2024-11-28 03:17:24,684 INFO L125 PetriNetUnfolderBase]: For 35931/35931 co-relation queries the response was YES. [2024-11-28 03:17:24,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5939 conditions, 3871 events. 302/3871 cut-off events. For 35931/35931 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 10986 event pairs, 0 based on Foata normal form. 0/3385 useless extension candidates. Maximal degree in co-relation 5820. Up to 120 conditions per place. [2024-11-28 03:17:24,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 2254 places, 2255 transitions, 11826 flow [2024-11-28 03:17:24,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 615 places, 498 transitions, 4657 flow [2024-11-28 03:17:24,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:24,776 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f0440c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:24,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2024-11-28 03:17:24,778 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:17:24,779 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-28 03:17:24,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:17:24,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:24,779 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:24,779 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2024-11-28 03:17:24,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:24,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1186057126, now seen corresponding path program 1 times [2024-11-28 03:17:24,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:24,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180381252] [2024-11-28 03:17:24,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:24,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:24,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180381252] [2024-11-28 03:17:24,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180381252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:24,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:24,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:24,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129251501] [2024-11-28 03:17:24,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:24,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:24,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:24,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:24,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:25,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1829 out of 2255 [2024-11-28 03:17:25,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 498 transitions, 4657 flow. Second operand has 3 states, 3 states have (on average 1830.3333333333333) internal successors, (5491), 3 states have internal predecessors, (5491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:25,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:25,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1829 of 2255 [2024-11-28 03:17:25,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:17:27,538 INFO L124 PetriNetUnfolderBase]: 121/2969 cut-off events. [2024-11-28 03:17:27,538 INFO L125 PetriNetUnfolderBase]: For 37761/37761 co-relation queries the response was YES. [2024-11-28 03:17:27,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5407 conditions, 2969 events. 121/2969 cut-off events. For 37761/37761 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8193 event pairs, 60 based on Foata normal form. 121/2845 useless extension candidates. Maximal degree in co-relation 5242. Up to 426 conditions per place. [2024-11-28 03:17:27,598 INFO L140 encePairwiseOnDemand]: 2249/2255 looper letters, 69 selfloop transitions, 2 changer transitions 1/494 dead transitions. [2024-11-28 03:17:27,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 494 transitions, 4791 flow [2024-11-28 03:17:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:17:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5562 transitions. [2024-11-28 03:17:27,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8221729490022173 [2024-11-28 03:17:27,602 INFO L175 Difference]: Start difference. First operand has 615 places, 498 transitions, 4657 flow. Second operand 3 states and 5562 transitions. [2024-11-28 03:17:27,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 494 transitions, 4791 flow [2024-11-28 03:17:27,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 494 transitions, 1484 flow, removed 1653 selfloop flow, removed 1 redundant places. [2024-11-28 03:17:27,690 INFO L231 Difference]: Finished difference. Result has 615 places, 493 transitions, 1344 flow [2024-11-28 03:17:27,690 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2255, PETRI_DIFFERENCE_MINUEND_FLOW=1342, PETRI_DIFFERENCE_MINUEND_PLACES=613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1344, PETRI_PLACES=615, PETRI_TRANSITIONS=493} [2024-11-28 03:17:27,690 INFO L279 CegarLoopForPetriNet]: 615 programPoint places, 0 predicate places. [2024-11-28 03:17:27,690 INFO L471 AbstractCegarLoop]: Abstraction has has 615 places, 493 transitions, 1344 flow [2024-11-28 03:17:27,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1830.3333333333333) internal successors, (5491), 3 states have internal predecessors, (5491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:27,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:17:27,691 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:27,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2024-11-28 03:17:27,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2024-11-28 03:17:27,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:27,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1010106190, now seen corresponding path program 1 times [2024-11-28 03:17:27,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:27,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431054898] [2024-11-28 03:17:27,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:27,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:27,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:27,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431054898] [2024-11-28 03:17:27,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431054898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:27,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:27,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:17:27,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796861111] [2024-11-28 03:17:27,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:27,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:27,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:27,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:27,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:28,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1709 out of 2255 [2024-11-28 03:17:28,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 493 transitions, 1344 flow. Second operand has 3 states, 3 states have (on average 1710.0) internal successors, (5130), 3 states have internal predecessors, (5130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:17:28,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:17:28,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1709 of 2255 [2024-11-28 03:17:28,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand