./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.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_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/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_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/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_dc12dc4f-1421-48db-9ffc-1945bf2dff78/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 860528881155a718438c0581485d42cc235131c30c9ba38f0a976304f206e75d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:33:06,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:33:06,936 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:33:06,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:33:06,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:33:06,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:33:06,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:33:06,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:33:06,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:33:06,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:33:06,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:33:06,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:33:06,977 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:33:06,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:33:06,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:33:06,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:33:06,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:33:06,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:33:06,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:33:06,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:33:06,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:33:06,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:33:06,979 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:33:06,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:33:06,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:33:06,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:33:06,979 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:33:06,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:33:06,980 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:33:06,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:33:06,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:33:06,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:06,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:33:06,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:33:06,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:33:06,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:06,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:33:06,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:33:06,981 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:33:06,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:33:06,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:33:06,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:33:06,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:33:06,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:33:06,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:33:06,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:33:06,982 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_dc12dc4f-1421-48db-9ffc-1945bf2dff78/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 -> 860528881155a718438c0581485d42cc235131c30c9ba38f0a976304f206e75d [2024-11-28 03:33:07,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:33:07,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:33:07,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:33:07,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:33:07,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:33:07,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i [2024-11-28 03:33:10,777 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/data/c8380c76a/b50a756c8f5943b8906321f27c536763/FLAG95445f061 [2024-11-28 03:33:11,305 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:33:11,306 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i [2024-11-28 03:33:11,322 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/data/c8380c76a/b50a756c8f5943b8906321f27c536763/FLAG95445f061 [2024-11-28 03:33:11,340 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/data/c8380c76a/b50a756c8f5943b8906321f27c536763 [2024-11-28 03:33:11,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:33:11,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:33:11,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:33:11,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:33:11,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:33:11,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7329ae04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11, skipping insertion in model container [2024-11-28 03:33:11,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:33:11,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:33:11,804 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:33:11,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:33:11,902 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:33:11,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11 WrapperNode [2024-11-28 03:33:11,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:33:11,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:33:11,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:33:11,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:33:11,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,945 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2024-11-28 03:33:11,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:33:11,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:33:11,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:33:11,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:33:11,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,968 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:33:11,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:33:11,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:33:11,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:33:11,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (1/1) ... [2024-11-28 03:33:11,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:12,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:12,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:33:12,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:33:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:33:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:33:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:33:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:33:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:33:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:33:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:33:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-28 03:33:12,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-28 03:33:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:33:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:33:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:33:12,080 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 03:33:12,232 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:33:12,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:33:12,538 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:33:12,538 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:33:12,569 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:33:12,569 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:33:12,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:12 BoogieIcfgContainer [2024-11-28 03:33:12,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:33:12,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:33:12,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:33:12,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:33:12,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:33:11" (1/3) ... [2024-11-28 03:33:12,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223dce98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:12, skipping insertion in model container [2024-11-28 03:33:12,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:11" (2/3) ... [2024-11-28 03:33:12,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223dce98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:12, skipping insertion in model container [2024-11-28 03:33:12,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:12" (3/3) ... [2024-11-28 03:33:12,590 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race-2.i [2024-11-28 03:33:12,612 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:33:12,614 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-array-const-race-2.i that has 2 procedures, 74 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-28 03:33:12,615 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:33:12,706 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 03:33:12,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2024-11-28 03:33:12,865 INFO L124 PetriNetUnfolderBase]: 5/112 cut-off events. [2024-11-28 03:33:12,868 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:33:12,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 112 events. 5/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 221 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-28 03:33:12,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2024-11-28 03:33:12,882 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2024-11-28 03:33:12,901 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:12,921 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;@527d743d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:12,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 03:33:12,947 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:33:12,947 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 03:33:12,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:33:12,947 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:12,951 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, 1, 1] [2024-11-28 03:33:12,951 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:33:12,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:12,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1066855748, now seen corresponding path program 1 times [2024-11-28 03:33:12,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:12,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910179301] [2024-11-28 03:33:12,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:12,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:13,460 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 03:33:13,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:13,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910179301] [2024-11-28 03:33:13,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910179301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:13,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:13,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:13,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833972253] [2024-11-28 03:33:13,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:13,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:13,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:13,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:13,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:13,623 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2024-11-28 03:33:13,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:13,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:13,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2024-11-28 03:33:13,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:13,798 INFO L124 PetriNetUnfolderBase]: 8/185 cut-off events. [2024-11-28 03:33:13,800 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:33:13,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 185 events. 8/185 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 577 event pairs, 0 based on Foata normal form. 5/170 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2024-11-28 03:33:13,803 INFO L140 encePairwiseOnDemand]: 70/77 looper letters, 10 selfloop transitions, 4 changer transitions 1/79 dead transitions. [2024-11-28 03:33:13,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 195 flow [2024-11-28 03:33:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:13,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-11-28 03:33:13,826 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2024-11-28 03:33:13,828 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 4 states and 275 transitions. [2024-11-28 03:33:13,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 195 flow [2024-11-28 03:33:13,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 195 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:33:13,839 INFO L231 Difference]: Finished difference. Result has 81 places, 75 transitions, 169 flow [2024-11-28 03:33:13,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=81, PETRI_TRANSITIONS=75} [2024-11-28 03:33:13,851 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2024-11-28 03:33:13,852 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 75 transitions, 169 flow [2024-11-28 03:33:13,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:13,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:13,852 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, 1, 1, 1, 1, 1] [2024-11-28 03:33:13,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:33:13,853 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:33:13,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:13,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1457101538, now seen corresponding path program 1 times [2024-11-28 03:33:13,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:13,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856647651] [2024-11-28 03:33:13,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:13,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:14,805 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 03:33:14,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:14,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856647651] [2024-11-28 03:33:14,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856647651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:14,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:14,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:14,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733125515] [2024-11-28 03:33:14,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:14,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:14,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:14,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:14,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:15,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 77 [2024-11-28 03:33:15,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 75 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:15,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 77 [2024-11-28 03:33:15,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:15,317 INFO L124 PetriNetUnfolderBase]: 30/233 cut-off events. [2024-11-28 03:33:15,317 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 03:33:15,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 233 events. 30/233 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 952 event pairs, 4 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 273. Up to 62 conditions per place. [2024-11-28 03:33:15,321 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 25 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2024-11-28 03:33:15,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 243 flow [2024-11-28 03:33:15,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:15,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:33:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 343 transitions. [2024-11-28 03:33:15,324 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7424242424242424 [2024-11-28 03:33:15,328 INFO L175 Difference]: Start difference. First operand has 81 places, 75 transitions, 169 flow. Second operand 6 states and 343 transitions. [2024-11-28 03:33:15,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 243 flow [2024-11-28 03:33:15,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 235 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:33:15,335 INFO L231 Difference]: Finished difference. Result has 82 places, 74 transitions, 169 flow [2024-11-28 03:33:15,335 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2024-11-28 03:33:15,336 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2024-11-28 03:33:15,336 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 169 flow [2024-11-28 03:33:15,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:15,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:15,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:33:15,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:33:15,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2094057674, now seen corresponding path program 1 times [2024-11-28 03:33:15,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:15,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895122842] [2024-11-28 03:33:15,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:15,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:15,451 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 03:33:15,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:15,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895122842] [2024-11-28 03:33:15,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895122842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:15,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:15,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:15,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965196671] [2024-11-28 03:33:15,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:15,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:15,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:15,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:15,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 77 [2024-11-28 03:33:15,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:15,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 77 [2024-11-28 03:33:15,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:15,534 INFO L124 PetriNetUnfolderBase]: 6/141 cut-off events. [2024-11-28 03:33:15,535 INFO L125 PetriNetUnfolderBase]: For 10/16 co-relation queries the response was YES. [2024-11-28 03:33:15,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 141 events. 6/141 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 383 event pairs, 4 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 134. Up to 21 conditions per place. [2024-11-28 03:33:15,537 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 9 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-28 03:33:15,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 77 transitions, 201 flow [2024-11-28 03:33:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:15,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-28 03:33:15,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-28 03:33:15,540 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 169 flow. Second operand 3 states and 209 transitions. [2024-11-28 03:33:15,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 77 transitions, 201 flow [2024-11-28 03:33:15,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 77 transitions, 191 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:33:15,546 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 189 flow [2024-11-28 03:33:15,547 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2024-11-28 03:33:15,549 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2024-11-28 03:33:15,549 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 189 flow [2024-11-28 03:33:15,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:15,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:15,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:33:15,551 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:33:15,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:15,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1239924604, now seen corresponding path program 1 times [2024-11-28 03:33:15,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:15,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467216757] [2024-11-28 03:33:15,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:15,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:15,745 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 03:33:15,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:15,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467216757] [2024-11-28 03:33:15,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467216757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:15,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:15,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:15,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992170727] [2024-11-28 03:33:15,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:15,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:15,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:15,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:15,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:15,809 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2024-11-28 03:33:15,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:15,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2024-11-28 03:33:15,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:15,857 INFO L124 PetriNetUnfolderBase]: 2/106 cut-off events. [2024-11-28 03:33:15,857 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 03:33:15,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 106 events. 2/106 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 82. Up to 7 conditions per place. [2024-11-28 03:33:15,858 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 9 selfloop transitions, 3 changer transitions 7/75 dead transitions. [2024-11-28 03:33:15,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 75 transitions, 199 flow [2024-11-28 03:33:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:15,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:15,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-11-28 03:33:15,860 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8766233766233766 [2024-11-28 03:33:15,860 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 189 flow. Second operand 4 states and 270 transitions. [2024-11-28 03:33:15,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 75 transitions, 199 flow [2024-11-28 03:33:15,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 187 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-28 03:33:15,863 INFO L231 Difference]: Finished difference. Result has 80 places, 66 transitions, 153 flow [2024-11-28 03:33:15,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2024-11-28 03:33:15,864 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2024-11-28 03:33:15,864 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 153 flow [2024-11-28 03:33:15,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:15,865 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:15,865 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, 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 03:33:15,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:33:15,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:33:15,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:15,866 INFO L85 PathProgramCache]: Analyzing trace with hash -133671646, now seen corresponding path program 1 times [2024-11-28 03:33:15,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:15,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379862440] [2024-11-28 03:33:15,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:15,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:33:16,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:16,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379862440] [2024-11-28 03:33:16,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379862440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:16,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:16,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:16,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319226099] [2024-11-28 03:33:16,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:16,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:16,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:16,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:16,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:16,226 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 77 [2024-11-28 03:33:16,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:16,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:16,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 77 [2024-11-28 03:33:16,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:16,339 INFO L124 PetriNetUnfolderBase]: 6/87 cut-off events. [2024-11-28 03:33:16,339 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 03:33:16,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 87 events. 6/87 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 3/89 useless extension candidates. Maximal degree in co-relation 114. Up to 5 conditions per place. [2024-11-28 03:33:16,341 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 10 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2024-11-28 03:33:16,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 146 flow [2024-11-28 03:33:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:33:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:33:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 450 transitions. [2024-11-28 03:33:16,345 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8348794063079777 [2024-11-28 03:33:16,346 INFO L175 Difference]: Start difference. First operand has 80 places, 66 transitions, 153 flow. Second operand 7 states and 450 transitions. [2024-11-28 03:33:16,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 146 flow [2024-11-28 03:33:16,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 54 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:16,352 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 111 flow [2024-11-28 03:33:16,352 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=111, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-28 03:33:16,356 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -18 predicate places. [2024-11-28 03:33:16,356 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 111 flow [2024-11-28 03:33:16,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:16,357 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:16,357 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2024-11-28 03:33:16,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:33:16,357 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 03:33:16,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:16,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1884500983, now seen corresponding path program 1 times [2024-11-28 03:33:16,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:16,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474114915] [2024-11-28 03:33:16,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:16,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:33:16,406 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:33:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:33:16,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:33:16,470 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:33:16,471 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-28 03:33:16,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-28 03:33:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-28 03:33:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-28 03:33:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-28 03:33:16,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-28 03:33:16,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:33:16,479 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 03:33:16,482 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:33:16,486 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:33:16,525 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:33:16,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 95 transitions, 206 flow [2024-11-28 03:33:16,579 INFO L124 PetriNetUnfolderBase]: 10/197 cut-off events. [2024-11-28 03:33:16,579 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 03:33:16,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 197 events. 10/197 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 452 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 114. Up to 8 conditions per place. [2024-11-28 03:33:16,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 95 transitions, 206 flow [2024-11-28 03:33:16,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 95 transitions, 206 flow [2024-11-28 03:33:16,585 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:16,587 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;@527d743d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:16,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 03:33:16,594 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:33:16,594 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 03:33:16,594 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:33:16,594 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:16,595 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, 1, 1] [2024-11-28 03:33:16,595 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:33:16,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:16,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2135896740, now seen corresponding path program 1 times [2024-11-28 03:33:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:16,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911590630] [2024-11-28 03:33:16,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:16,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:16,700 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 03:33:16,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:16,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911590630] [2024-11-28 03:33:16,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911590630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:16,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:16,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:16,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595527] [2024-11-28 03:33:16,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:16,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:16,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:16,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:16,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:16,764 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-28 03:33:16,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:16,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:16,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-28 03:33:16,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:16,934 INFO L124 PetriNetUnfolderBase]: 72/571 cut-off events. [2024-11-28 03:33:16,934 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-28 03:33:16,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 571 events. 72/571 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3303 event pairs, 35 based on Foata normal form. 16/538 useless extension candidates. Maximal degree in co-relation 336. Up to 106 conditions per place. [2024-11-28 03:33:16,940 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 18 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2024-11-28 03:33:16,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 260 flow [2024-11-28 03:33:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2024-11-28 03:33:16,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8894736842105263 [2024-11-28 03:33:16,943 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 206 flow. Second operand 4 states and 338 transitions. [2024-11-28 03:33:16,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 260 flow [2024-11-28 03:33:16,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 100 transitions, 260 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:33:16,949 INFO L231 Difference]: Finished difference. Result has 100 places, 94 transitions, 218 flow [2024-11-28 03:33:16,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=100, PETRI_TRANSITIONS=94} [2024-11-28 03:33:16,950 INFO L279 CegarLoopForPetriNet]: 96 programPoint places, 4 predicate places. [2024-11-28 03:33:16,950 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 218 flow [2024-11-28 03:33:16,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:16,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:16,951 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, 1, 1, 1, 1, 1] [2024-11-28 03:33:16,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:33:16,953 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:33:16,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:16,954 INFO L85 PathProgramCache]: Analyzing trace with hash 839503041, now seen corresponding path program 1 times [2024-11-28 03:33:16,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:16,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466854353] [2024-11-28 03:33:16,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:16,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:17,430 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 03:33:17,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:17,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466854353] [2024-11-28 03:33:17,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466854353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:17,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:17,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:17,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238818126] [2024-11-28 03:33:17,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:17,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:17,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:17,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:17,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:17,573 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 95 [2024-11-28 03:33:17,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:17,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:17,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 95 [2024-11-28 03:33:17,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:17,828 INFO L124 PetriNetUnfolderBase]: 236/941 cut-off events. [2024-11-28 03:33:17,828 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-28 03:33:17,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 941 events. 236/941 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6600 event pairs, 91 based on Foata normal form. 0/875 useless extension candidates. Maximal degree in co-relation 443. Up to 313 conditions per place. [2024-11-28 03:33:17,837 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 38 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2024-11-28 03:33:17,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 109 transitions, 334 flow [2024-11-28 03:33:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:33:17,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-28 03:33:17,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7701754385964912 [2024-11-28 03:33:17,840 INFO L175 Difference]: Start difference. First operand has 100 places, 94 transitions, 218 flow. Second operand 6 states and 439 transitions. [2024-11-28 03:33:17,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 109 transitions, 334 flow [2024-11-28 03:33:17,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 328 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:17,844 INFO L231 Difference]: Finished difference. Result has 102 places, 93 transitions, 220 flow [2024-11-28 03:33:17,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=220, PETRI_PLACES=102, PETRI_TRANSITIONS=93} [2024-11-28 03:33:17,845 INFO L279 CegarLoopForPetriNet]: 96 programPoint places, 6 predicate places. [2024-11-28 03:33:17,846 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 93 transitions, 220 flow [2024-11-28 03:33:17,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:17,846 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:17,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:17,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:33:17,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:33:17,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:17,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1653504933, now seen corresponding path program 1 times [2024-11-28 03:33:17,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:17,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566292039] [2024-11-28 03:33:17,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:17,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:17,890 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 03:33:17,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:17,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566292039] [2024-11-28 03:33:17,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566292039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:17,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:17,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:17,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894240393] [2024-11-28 03:33:17,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:17,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:17,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:17,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:17,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:17,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-28 03:33:17,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 93 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:17,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:17,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-28 03:33:17,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:18,083 INFO L124 PetriNetUnfolderBase]: 116/707 cut-off events. [2024-11-28 03:33:18,083 INFO L125 PetriNetUnfolderBase]: For 100/145 co-relation queries the response was YES. [2024-11-28 03:33:18,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 707 events. 116/707 cut-off events. For 100/145 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4567 event pairs, 58 based on Foata normal form. 4/621 useless extension candidates. Maximal degree in co-relation 463. Up to 185 conditions per place. [2024-11-28 03:33:18,090 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 18 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2024-11-28 03:33:18,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 101 transitions, 290 flow [2024-11-28 03:33:18,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:18,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2024-11-28 03:33:18,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9052631578947369 [2024-11-28 03:33:18,092 INFO L175 Difference]: Start difference. First operand has 102 places, 93 transitions, 220 flow. Second operand 3 states and 258 transitions. [2024-11-28 03:33:18,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 101 transitions, 290 flow [2024-11-28 03:33:18,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 101 transitions, 280 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:33:18,096 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 248 flow [2024-11-28 03:33:18,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-11-28 03:33:18,097 INFO L279 CegarLoopForPetriNet]: 96 programPoint places, 5 predicate places. [2024-11-28 03:33:18,097 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 248 flow [2024-11-28 03:33:18,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:18,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:18,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:18,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:33:18,098 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:33:18,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:18,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1837214413, now seen corresponding path program 1 times [2024-11-28 03:33:18,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:18,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182491909] [2024-11-28 03:33:18,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:18,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:18,213 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 03:33:18,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:18,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182491909] [2024-11-28 03:33:18,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182491909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:18,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:18,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:18,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887176060] [2024-11-28 03:33:18,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:18,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:18,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:18,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:18,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:18,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-28 03:33:18,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:18,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:18,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-28 03:33:18,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:18,426 INFO L124 PetriNetUnfolderBase]: 63/580 cut-off events. [2024-11-28 03:33:18,426 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-28 03:33:18,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 580 events. 63/580 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3183 event pairs, 24 based on Foata normal form. 15/544 useless extension candidates. Maximal degree in co-relation 632. Up to 72 conditions per place. [2024-11-28 03:33:18,431 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 19 selfloop transitions, 4 changer transitions 3/108 dead transitions. [2024-11-28 03:33:18,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 108 transitions, 328 flow [2024-11-28 03:33:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2024-11-28 03:33:18,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8921052631578947 [2024-11-28 03:33:18,433 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 248 flow. Second operand 4 states and 339 transitions. [2024-11-28 03:33:18,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 108 transitions, 328 flow [2024-11-28 03:33:18,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 108 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:18,438 INFO L231 Difference]: Finished difference. Result has 103 places, 98 transitions, 254 flow [2024-11-28 03:33:18,438 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=103, PETRI_TRANSITIONS=98} [2024-11-28 03:33:18,439 INFO L279 CegarLoopForPetriNet]: 96 programPoint places, 7 predicate places. [2024-11-28 03:33:18,439 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 98 transitions, 254 flow [2024-11-28 03:33:18,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:18,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:18,440 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, 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 03:33:18,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:33:18,440 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:33:18,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:18,441 INFO L85 PathProgramCache]: Analyzing trace with hash 55230098, now seen corresponding path program 1 times [2024-11-28 03:33:18,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:18,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474576535] [2024-11-28 03:33:18,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:18,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:33:18,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:18,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474576535] [2024-11-28 03:33:18,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474576535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:18,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:18,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:18,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311711249] [2024-11-28 03:33:18,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:18,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:18,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:18,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:18,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:18,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 95 [2024-11-28 03:33:18,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:18,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:18,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 95 [2024-11-28 03:33:18,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:19,029 INFO L124 PetriNetUnfolderBase]: 111/852 cut-off events. [2024-11-28 03:33:19,029 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-28 03:33:19,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 852 events. 111/852 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5388 event pairs, 21 based on Foata normal form. 3/781 useless extension candidates. Maximal degree in co-relation 742. Up to 125 conditions per place. [2024-11-28 03:33:19,037 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 24 selfloop transitions, 7 changer transitions 3/114 dead transitions. [2024-11-28 03:33:19,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 114 transitions, 354 flow [2024-11-28 03:33:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:33:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:33:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 567 transitions. [2024-11-28 03:33:19,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8526315789473684 [2024-11-28 03:33:19,040 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 254 flow. Second operand 7 states and 567 transitions. [2024-11-28 03:33:19,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 114 transitions, 354 flow [2024-11-28 03:33:19,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 114 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:19,046 INFO L231 Difference]: Finished difference. Result has 110 places, 100 transitions, 278 flow [2024-11-28 03:33:19,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=278, PETRI_PLACES=110, PETRI_TRANSITIONS=100} [2024-11-28 03:33:19,049 INFO L279 CegarLoopForPetriNet]: 96 programPoint places, 14 predicate places. [2024-11-28 03:33:19,049 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 100 transitions, 278 flow [2024-11-28 03:33:19,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:19,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:19,053 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2024-11-28 03:33:19,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:33:19,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:33:19,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:19,055 INFO L85 PathProgramCache]: Analyzing trace with hash 766906973, now seen corresponding path program 1 times [2024-11-28 03:33:19,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:19,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235672943] [2024-11-28 03:33:19,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:19,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:19,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:33:19,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:19,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235672943] [2024-11-28 03:33:19,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235672943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:19,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:19,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:19,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331635366] [2024-11-28 03:33:19,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:19,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:19,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:19,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:19,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:19,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-28 03:33:19,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 100 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:19,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:19,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-28 03:33:19,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:19,292 INFO L124 PetriNetUnfolderBase]: 58/570 cut-off events. [2024-11-28 03:33:19,292 INFO L125 PetriNetUnfolderBase]: For 136/188 co-relation queries the response was YES. [2024-11-28 03:33:19,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 570 events. 58/570 cut-off events. For 136/188 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3280 event pairs, 32 based on Foata normal form. 3/527 useless extension candidates. Maximal degree in co-relation 758. Up to 111 conditions per place. [2024-11-28 03:33:19,298 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 18 selfloop transitions, 6 changer transitions 0/107 dead transitions. [2024-11-28 03:33:19,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 107 transitions, 347 flow [2024-11-28 03:33:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:19,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2024-11-28 03:33:19,302 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9017543859649123 [2024-11-28 03:33:19,302 INFO L175 Difference]: Start difference. First operand has 110 places, 100 transitions, 278 flow. Second operand 3 states and 257 transitions. [2024-11-28 03:33:19,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 107 transitions, 347 flow [2024-11-28 03:33:19,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 107 transitions, 337 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 03:33:19,306 INFO L231 Difference]: Finished difference. Result has 111 places, 104 transitions, 314 flow [2024-11-28 03:33:19,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=111, PETRI_TRANSITIONS=104} [2024-11-28 03:33:19,309 INFO L279 CegarLoopForPetriNet]: 96 programPoint places, 15 predicate places. [2024-11-28 03:33:19,309 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 104 transitions, 314 flow [2024-11-28 03:33:19,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:19,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:19,310 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:33:19,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:33:19,310 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:33:19,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:19,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1154559254, now seen corresponding path program 1 times [2024-11-28 03:33:19,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:19,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308280111] [2024-11-28 03:33:19,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:19,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:33:19,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308280111] [2024-11-28 03:33:19,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308280111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:19,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:19,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:33:19,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701022929] [2024-11-28 03:33:19,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:19,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:33:19,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:19,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:33:19,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:19,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 95 [2024-11-28 03:33:19,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 104 transitions, 314 flow. Second operand has 8 states, 8 states have (on average 77.625) internal successors, (621), 8 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:19,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:19,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 95 [2024-11-28 03:33:19,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:19,983 INFO L124 PetriNetUnfolderBase]: 71/470 cut-off events. [2024-11-28 03:33:19,983 INFO L125 PetriNetUnfolderBase]: For 93/97 co-relation queries the response was YES. [2024-11-28 03:33:19,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 470 events. 71/470 cut-off events. For 93/97 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2505 event pairs, 1 based on Foata normal form. 14/473 useless extension candidates. Maximal degree in co-relation 741. Up to 32 conditions per place. [2024-11-28 03:33:19,987 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 25 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2024-11-28 03:33:19,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 93 transitions, 328 flow [2024-11-28 03:33:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:33:19,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:33:19,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 794 transitions. [2024-11-28 03:33:19,990 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8357894736842105 [2024-11-28 03:33:19,990 INFO L175 Difference]: Start difference. First operand has 111 places, 104 transitions, 314 flow. Second operand 10 states and 794 transitions. [2024-11-28 03:33:19,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 93 transitions, 328 flow [2024-11-28 03:33:19,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:33:19,994 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 228 flow [2024-11-28 03:33:19,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=228, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-11-28 03:33:19,996 INFO L279 CegarLoopForPetriNet]: 96 programPoint places, -5 predicate places. [2024-11-28 03:33:19,996 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 228 flow [2024-11-28 03:33:19,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 77.625) internal successors, (621), 8 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:19,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:19,998 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 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] [2024-11-28 03:33:19,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:33:19,998 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 03:33:19,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:19,999 INFO L85 PathProgramCache]: Analyzing trace with hash 827721648, now seen corresponding path program 1 times [2024-11-28 03:33:19,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:19,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139467315] [2024-11-28 03:33:19,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:20,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:33:20,042 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:33:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:33:20,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:33:20,084 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:33:20,084 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-28 03:33:20,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-28 03:33:20,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-28 03:33:20,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-28 03:33:20,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-28 03:33:20,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-28 03:33:20,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-28 03:33:20,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:33:20,086 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:20,086 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:33:20,087 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 03:33:20,123 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 03:33:20,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 113 transitions, 253 flow [2024-11-28 03:33:20,185 INFO L124 PetriNetUnfolderBase]: 20/331 cut-off events. [2024-11-28 03:33:20,185 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 03:33:20,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 331 events. 20/331 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 928 event pairs, 1 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 205. Up to 16 conditions per place. [2024-11-28 03:33:20,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 113 transitions, 253 flow [2024-11-28 03:33:20,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 113 transitions, 253 flow [2024-11-28 03:33:20,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:20,192 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;@527d743d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:20,192 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 03:33:20,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:33:20,196 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 03:33:20,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:33:20,196 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:20,196 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, 1, 1] [2024-11-28 03:33:20,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:20,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1836888252, now seen corresponding path program 1 times [2024-11-28 03:33:20,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:20,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940080850] [2024-11-28 03:33:20,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:20,254 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 03:33:20,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:20,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940080850] [2024-11-28 03:33:20,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940080850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:20,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:20,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:20,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940646642] [2024-11-28 03:33:20,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:20,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:20,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:20,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:20,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:20,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2024-11-28 03:33:20,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:20,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:20,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2024-11-28 03:33:20,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:20,753 INFO L124 PetriNetUnfolderBase]: 413/2179 cut-off events. [2024-11-28 03:33:20,753 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-28 03:33:20,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2953 conditions, 2179 events. 413/2179 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17465 event pairs, 232 based on Foata normal form. 70/2062 useless extension candidates. Maximal degree in co-relation 1327. Up to 496 conditions per place. [2024-11-28 03:33:20,771 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 24 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-28 03:33:20,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 120 transitions, 323 flow [2024-11-28 03:33:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:20,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2024-11-28 03:33:20,773 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8849557522123894 [2024-11-28 03:33:20,773 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 253 flow. Second operand 4 states and 400 transitions. [2024-11-28 03:33:20,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 120 transitions, 323 flow [2024-11-28 03:33:20,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 120 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:33:20,777 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 265 flow [2024-11-28 03:33:20,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=265, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2024-11-28 03:33:20,778 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 4 predicate places. [2024-11-28 03:33:20,778 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 265 flow [2024-11-28 03:33:20,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:20,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:20,778 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, 1, 1, 1, 1, 1] [2024-11-28 03:33:20,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:33:20,779 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:20,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1958503346, now seen corresponding path program 1 times [2024-11-28 03:33:20,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:20,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98471968] [2024-11-28 03:33:20,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:20,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:21,067 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 03:33:21,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:21,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98471968] [2024-11-28 03:33:21,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98471968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:21,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:21,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:21,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214313450] [2024-11-28 03:33:21,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:21,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:21,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:21,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:21,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:21,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 113 [2024-11-28 03:33:21,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:21,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:21,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 113 [2024-11-28 03:33:21,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:22,172 INFO L124 PetriNetUnfolderBase]: 1292/3939 cut-off events. [2024-11-28 03:33:22,172 INFO L125 PetriNetUnfolderBase]: For 316/316 co-relation queries the response was YES. [2024-11-28 03:33:22,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6288 conditions, 3939 events. 1292/3939 cut-off events. For 316/316 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 34553 event pairs, 412 based on Foata normal form. 0/3678 useless extension candidates. Maximal degree in co-relation 5573. Up to 1483 conditions per place. [2024-11-28 03:33:22,209 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 50 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2024-11-28 03:33:22,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 135 transitions, 421 flow [2024-11-28 03:33:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:33:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 535 transitions. [2024-11-28 03:33:22,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7890855457227138 [2024-11-28 03:33:22,213 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 265 flow. Second operand 6 states and 535 transitions. [2024-11-28 03:33:22,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 135 transitions, 421 flow [2024-11-28 03:33:22,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 135 transitions, 415 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:22,219 INFO L231 Difference]: Finished difference. Result has 121 places, 111 transitions, 267 flow [2024-11-28 03:33:22,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=121, PETRI_TRANSITIONS=111} [2024-11-28 03:33:22,220 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 6 predicate places. [2024-11-28 03:33:22,220 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 111 transitions, 267 flow [2024-11-28 03:33:22,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:22,221 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:22,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:22,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:33:22,222 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:22,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:22,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2066665990, now seen corresponding path program 1 times [2024-11-28 03:33:22,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:22,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493530090] [2024-11-28 03:33:22,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:22,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:22,263 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 03:33:22,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:22,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493530090] [2024-11-28 03:33:22,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493530090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:22,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:22,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:22,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794796994] [2024-11-28 03:33:22,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:22,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:22,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:22,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:22,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:22,293 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-28 03:33:22,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 111 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:22,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:22,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-28 03:33:22,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:23,056 INFO L124 PetriNetUnfolderBase]: 1023/4159 cut-off events. [2024-11-28 03:33:23,057 INFO L125 PetriNetUnfolderBase]: For 756/1010 co-relation queries the response was YES. [2024-11-28 03:33:23,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6131 conditions, 4159 events. 1023/4159 cut-off events. For 756/1010 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 39690 event pairs, 581 based on Foata normal form. 4/3617 useless extension candidates. Maximal degree in co-relation 2112. Up to 1329 conditions per place. [2024-11-28 03:33:23,098 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 27 selfloop transitions, 6 changer transitions 0/124 dead transitions. [2024-11-28 03:33:23,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 124 transitions, 377 flow [2024-11-28 03:33:23,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2024-11-28 03:33:23,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9056047197640118 [2024-11-28 03:33:23,100 INFO L175 Difference]: Start difference. First operand has 121 places, 111 transitions, 267 flow. Second operand 3 states and 307 transitions. [2024-11-28 03:33:23,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 124 transitions, 377 flow [2024-11-28 03:33:23,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 124 transitions, 367 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:33:23,104 INFO L231 Difference]: Finished difference. Result has 120 places, 116 transitions, 303 flow [2024-11-28 03:33:23,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=120, PETRI_TRANSITIONS=116} [2024-11-28 03:33:23,105 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 5 predicate places. [2024-11-28 03:33:23,105 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 116 transitions, 303 flow [2024-11-28 03:33:23,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:23,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:23,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:23,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:33:23,106 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:23,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:23,107 INFO L85 PathProgramCache]: Analyzing trace with hash -698562764, now seen corresponding path program 1 times [2024-11-28 03:33:23,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:23,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944739181] [2024-11-28 03:33:23,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:23,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:23,188 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 03:33:23,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:23,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944739181] [2024-11-28 03:33:23,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944739181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:23,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:23,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:23,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597478182] [2024-11-28 03:33:23,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:23,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:23,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:23,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:23,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:23,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2024-11-28 03:33:23,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 116 transitions, 303 flow. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:23,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:23,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2024-11-28 03:33:23,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:23,883 INFO L124 PetriNetUnfolderBase]: 662/3141 cut-off events. [2024-11-28 03:33:23,884 INFO L125 PetriNetUnfolderBase]: For 430/450 co-relation queries the response was YES. [2024-11-28 03:33:23,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4682 conditions, 3141 events. 662/3141 cut-off events. For 430/450 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 28316 event pairs, 320 based on Foata normal form. 63/2852 useless extension candidates. Maximal degree in co-relation 3788. Up to 540 conditions per place. [2024-11-28 03:33:23,922 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 31 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2024-11-28 03:33:23,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 132 transitions, 414 flow [2024-11-28 03:33:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2024-11-28 03:33:23,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8938053097345132 [2024-11-28 03:33:23,925 INFO L175 Difference]: Start difference. First operand has 120 places, 116 transitions, 303 flow. Second operand 4 states and 404 transitions. [2024-11-28 03:33:23,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 132 transitions, 414 flow [2024-11-28 03:33:23,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 132 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:23,932 INFO L231 Difference]: Finished difference. Result has 122 places, 117 transitions, 307 flow [2024-11-28 03:33:23,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=307, PETRI_PLACES=122, PETRI_TRANSITIONS=117} [2024-11-28 03:33:23,933 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 7 predicate places. [2024-11-28 03:33:23,934 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 117 transitions, 307 flow [2024-11-28 03:33:23,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:23,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:23,934 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, 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 03:33:23,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:33:23,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:23,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash -25086142, now seen corresponding path program 1 times [2024-11-28 03:33:23,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:23,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222630876] [2024-11-28 03:33:23,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:23,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:33:24,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:24,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222630876] [2024-11-28 03:33:24,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222630876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:24,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:24,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:24,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642814163] [2024-11-28 03:33:24,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:24,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:24,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:24,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:24,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:24,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2024-11-28 03:33:24,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 117 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:24,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:24,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2024-11-28 03:33:24,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:25,181 INFO L124 PetriNetUnfolderBase]: 950/4761 cut-off events. [2024-11-28 03:33:25,182 INFO L125 PetriNetUnfolderBase]: For 649/649 co-relation queries the response was YES. [2024-11-28 03:33:25,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6986 conditions, 4761 events. 950/4761 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 47807 event pairs, 310 based on Foata normal form. 3/4187 useless extension candidates. Maximal degree in co-relation 3734. Up to 1100 conditions per place. [2024-11-28 03:33:25,220 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 35 selfloop transitions, 7 changer transitions 0/137 dead transitions. [2024-11-28 03:33:25,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 137 transitions, 433 flow [2024-11-28 03:33:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:33:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:33:25,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 673 transitions. [2024-11-28 03:33:25,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8508217446270544 [2024-11-28 03:33:25,223 INFO L175 Difference]: Start difference. First operand has 122 places, 117 transitions, 307 flow. Second operand 7 states and 673 transitions. [2024-11-28 03:33:25,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 137 transitions, 433 flow [2024-11-28 03:33:25,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 137 transitions, 427 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:25,236 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 337 flow [2024-11-28 03:33:25,237 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=337, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2024-11-28 03:33:25,238 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 14 predicate places. [2024-11-28 03:33:25,238 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 337 flow [2024-11-28 03:33:25,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:25,239 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:25,239 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2024-11-28 03:33:25,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:33:25,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:25,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:25,240 INFO L85 PathProgramCache]: Analyzing trace with hash 888043421, now seen corresponding path program 1 times [2024-11-28 03:33:25,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:25,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893934364] [2024-11-28 03:33:25,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:25,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:25,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:33:25,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:25,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893934364] [2024-11-28 03:33:25,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893934364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:25,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:25,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:25,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446875447] [2024-11-28 03:33:25,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:25,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:25,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:25,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:25,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:25,330 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-28 03:33:25,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 337 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:25,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:25,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-28 03:33:25,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:26,096 INFO L124 PetriNetUnfolderBase]: 938/3984 cut-off events. [2024-11-28 03:33:26,097 INFO L125 PetriNetUnfolderBase]: For 1336/1523 co-relation queries the response was YES. [2024-11-28 03:33:26,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6761 conditions, 3984 events. 938/3984 cut-off events. For 1336/1523 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 39606 event pairs, 546 based on Foata normal form. 7/3597 useless extension candidates. Maximal degree in co-relation 6424. Up to 1216 conditions per place. [2024-11-28 03:33:26,131 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 28 selfloop transitions, 9 changer transitions 0/134 dead transitions. [2024-11-28 03:33:26,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 134 transitions, 462 flow [2024-11-28 03:33:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:26,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-11-28 03:33:26,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9026548672566371 [2024-11-28 03:33:26,134 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 337 flow. Second operand 3 states and 306 transitions. [2024-11-28 03:33:26,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 134 transitions, 462 flow [2024-11-28 03:33:26,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 134 transitions, 452 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 03:33:26,140 INFO L231 Difference]: Finished difference. Result has 130 places, 127 transitions, 403 flow [2024-11-28 03:33:26,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=403, PETRI_PLACES=130, PETRI_TRANSITIONS=127} [2024-11-28 03:33:26,141 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 15 predicate places. [2024-11-28 03:33:26,141 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 127 transitions, 403 flow [2024-11-28 03:33:26,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:26,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:26,142 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:33:26,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:33:26,142 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:26,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:26,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1797832773, now seen corresponding path program 1 times [2024-11-28 03:33:26,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:26,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676893341] [2024-11-28 03:33:26,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:26,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:33:26,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:26,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676893341] [2024-11-28 03:33:26,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676893341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:26,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:26,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:33:26,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179584940] [2024-11-28 03:33:26,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:26,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:33:26,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:26,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:33:26,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:26,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2024-11-28 03:33:26,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 127 transitions, 403 flow. Second operand has 8 states, 8 states have (on average 91.625) internal successors, (733), 8 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:26,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:26,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2024-11-28 03:33:26,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:27,702 INFO L124 PetriNetUnfolderBase]: 1255/6166 cut-off events. [2024-11-28 03:33:27,702 INFO L125 PetriNetUnfolderBase]: For 1548/2574 co-relation queries the response was YES. [2024-11-28 03:33:27,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9875 conditions, 6166 events. 1255/6166 cut-off events. For 1548/2574 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 65497 event pairs, 161 based on Foata normal form. 16/5425 useless extension candidates. Maximal degree in co-relation 5439. Up to 961 conditions per place. [2024-11-28 03:33:27,756 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 47 selfloop transitions, 10 changer transitions 0/159 dead transitions. [2024-11-28 03:33:27,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 159 transitions, 585 flow [2024-11-28 03:33:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:33:27,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:33:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 958 transitions. [2024-11-28 03:33:27,760 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8477876106194691 [2024-11-28 03:33:27,760 INFO L175 Difference]: Start difference. First operand has 130 places, 127 transitions, 403 flow. Second operand 10 states and 958 transitions. [2024-11-28 03:33:27,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 159 transitions, 585 flow [2024-11-28 03:33:27,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 159 transitions, 567 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:27,769 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 425 flow [2024-11-28 03:33:27,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=425, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2024-11-28 03:33:27,769 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 25 predicate places. [2024-11-28 03:33:27,769 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 425 flow [2024-11-28 03:33:27,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 91.625) internal successors, (733), 8 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:27,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:27,770 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2024-11-28 03:33:27,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:33:27,771 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:27,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:27,771 INFO L85 PathProgramCache]: Analyzing trace with hash 2013614129, now seen corresponding path program 1 times [2024-11-28 03:33:27,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:27,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550651976] [2024-11-28 03:33:27,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:27,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:33:27,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:27,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550651976] [2024-11-28 03:33:27,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550651976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:27,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:27,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:27,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496262028] [2024-11-28 03:33:27,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:27,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:27,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:27,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:27,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:27,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 113 [2024-11-28 03:33:27,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:27,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:27,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 113 [2024-11-28 03:33:27,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:28,145 INFO L124 PetriNetUnfolderBase]: 91/1220 cut-off events. [2024-11-28 03:33:28,146 INFO L125 PetriNetUnfolderBase]: For 302/362 co-relation queries the response was YES. [2024-11-28 03:33:28,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1838 conditions, 1220 events. 91/1220 cut-off events. For 302/362 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8811 event pairs, 48 based on Foata normal form. 20/1135 useless extension candidates. Maximal degree in co-relation 1574. Up to 106 conditions per place. [2024-11-28 03:33:28,152 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 12 selfloop transitions, 6 changer transitions 0/128 dead transitions. [2024-11-28 03:33:28,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 128 transitions, 456 flow [2024-11-28 03:33:28,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2024-11-28 03:33:28,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9292035398230089 [2024-11-28 03:33:28,155 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 425 flow. Second operand 3 states and 315 transitions. [2024-11-28 03:33:28,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 128 transitions, 456 flow [2024-11-28 03:33:28,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 128 transitions, 430 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 03:33:28,161 INFO L231 Difference]: Finished difference. Result has 136 places, 123 transitions, 375 flow [2024-11-28 03:33:28,162 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=136, PETRI_TRANSITIONS=123} [2024-11-28 03:33:28,162 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 21 predicate places. [2024-11-28 03:33:28,162 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 123 transitions, 375 flow [2024-11-28 03:33:28,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:28,163 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:28,163 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 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] [2024-11-28 03:33:28,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:33:28,163 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:28,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:28,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1530366491, now seen corresponding path program 1 times [2024-11-28 03:33:28,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:28,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356434168] [2024-11-28 03:33:28,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:28,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 03:33:28,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:28,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356434168] [2024-11-28 03:33:28,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356434168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:28,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:28,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:28,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753687201] [2024-11-28 03:33:28,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:28,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:28,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:28,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:28,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:28,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-28 03:33:28,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 123 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:28,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:28,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-28 03:33:28,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:28,554 INFO L124 PetriNetUnfolderBase]: 177/1401 cut-off events. [2024-11-28 03:33:28,554 INFO L125 PetriNetUnfolderBase]: For 717/765 co-relation queries the response was YES. [2024-11-28 03:33:28,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2420 conditions, 1401 events. 177/1401 cut-off events. For 717/765 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10810 event pairs, 135 based on Foata normal form. 3/1290 useless extension candidates. Maximal degree in co-relation 2120. Up to 336 conditions per place. [2024-11-28 03:33:28,565 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 23 selfloop transitions, 4 changer transitions 0/128 dead transitions. [2024-11-28 03:33:28,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 128 transitions, 449 flow [2024-11-28 03:33:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:28,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2024-11-28 03:33:28,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8820058997050148 [2024-11-28 03:33:28,567 INFO L175 Difference]: Start difference. First operand has 136 places, 123 transitions, 375 flow. Second operand 3 states and 299 transitions. [2024-11-28 03:33:28,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 128 transitions, 449 flow [2024-11-28 03:33:28,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 128 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:33:28,572 INFO L231 Difference]: Finished difference. Result has 139 places, 126 transitions, 403 flow [2024-11-28 03:33:28,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=403, PETRI_PLACES=139, PETRI_TRANSITIONS=126} [2024-11-28 03:33:28,573 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, 24 predicate places. [2024-11-28 03:33:28,573 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 126 transitions, 403 flow [2024-11-28 03:33:28,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:28,574 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:28,574 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:33:28,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:33:28,575 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:28,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:28,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2112878179, now seen corresponding path program 1 times [2024-11-28 03:33:28,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:28,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850364218] [2024-11-28 03:33:28,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:28,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 03:33:28,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:28,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850364218] [2024-11-28 03:33:28,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850364218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:28,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:28,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:33:28,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617191506] [2024-11-28 03:33:28,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:28,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:33:28,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:28,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:33:28,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:33:29,018 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2024-11-28 03:33:29,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 126 transitions, 403 flow. Second operand has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:29,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:29,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2024-11-28 03:33:29,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:29,458 INFO L124 PetriNetUnfolderBase]: 151/816 cut-off events. [2024-11-28 03:33:29,458 INFO L125 PetriNetUnfolderBase]: For 393/393 co-relation queries the response was YES. [2024-11-28 03:33:29,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1499 conditions, 816 events. 151/816 cut-off events. For 393/393 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4786 event pairs, 4 based on Foata normal form. 20/817 useless extension candidates. Maximal degree in co-relation 1481. Up to 88 conditions per place. [2024-11-28 03:33:29,464 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 50 selfloop transitions, 11 changer transitions 0/125 dead transitions. [2024-11-28 03:33:29,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 125 transitions, 498 flow [2024-11-28 03:33:29,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:33:29,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 03:33:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1219 transitions. [2024-11-28 03:33:29,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8298162014976175 [2024-11-28 03:33:29,470 INFO L175 Difference]: Start difference. First operand has 139 places, 126 transitions, 403 flow. Second operand 13 states and 1219 transitions. [2024-11-28 03:33:29,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 125 transitions, 498 flow [2024-11-28 03:33:29,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 125 transitions, 460 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-11-28 03:33:29,475 INFO L231 Difference]: Finished difference. Result has 112 places, 86 transitions, 246 flow [2024-11-28 03:33:29,476 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=246, PETRI_PLACES=112, PETRI_TRANSITIONS=86} [2024-11-28 03:33:29,476 INFO L279 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2024-11-28 03:33:29,476 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 86 transitions, 246 flow [2024-11-28 03:33:29,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:29,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:29,477 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 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] [2024-11-28 03:33:29,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:33:29,478 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 03:33:29,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:29,479 INFO L85 PathProgramCache]: Analyzing trace with hash -960932904, now seen corresponding path program 1 times [2024-11-28 03:33:29,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:29,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602844101] [2024-11-28 03:33:29,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:29,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:33:29,514 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:33:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:33:29,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:33:29,554 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:33:29,554 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-28 03:33:29,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-28 03:33:29,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-28 03:33:29,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-28 03:33:29,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-28 03:33:29,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-28 03:33:29,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-28 03:33:29,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-28 03:33:29,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:33:29,556 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:29,558 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:33:29,559 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 03:33:29,591 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 03:33:29,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 131 transitions, 302 flow [2024-11-28 03:33:29,661 INFO L124 PetriNetUnfolderBase]: 42/565 cut-off events. [2024-11-28 03:33:29,661 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-28 03:33:29,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 565 events. 42/565 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2077 event pairs, 6 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 351. Up to 32 conditions per place. [2024-11-28 03:33:29,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 131 transitions, 302 flow [2024-11-28 03:33:29,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 131 transitions, 302 flow [2024-11-28 03:33:29,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:29,667 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;@527d743d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:29,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 03:33:29,669 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:33:29,669 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 03:33:29,669 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:33:29,669 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:29,670 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, 1, 1] [2024-11-28 03:33:29,670 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:29,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:29,670 INFO L85 PathProgramCache]: Analyzing trace with hash -2033402660, now seen corresponding path program 1 times [2024-11-28 03:33:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:29,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951955801] [2024-11-28 03:33:29,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:29,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:29,714 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 03:33:29,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951955801] [2024-11-28 03:33:29,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951955801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:29,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:29,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:29,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324450387] [2024-11-28 03:33:29,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:29,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:29,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:29,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:29,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:29,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-28 03:33:29,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:29,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:29,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-28 03:33:29,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:30,985 INFO L124 PetriNetUnfolderBase]: 2017/8193 cut-off events. [2024-11-28 03:33:30,985 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2024-11-28 03:33:31,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11594 conditions, 8193 events. 2017/8193 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 83560 event pairs, 1191 based on Foata normal form. 286/7767 useless extension candidates. Maximal degree in co-relation 5267. Up to 2119 conditions per place. [2024-11-28 03:33:31,057 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2024-11-28 03:33:31,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 140 transitions, 388 flow [2024-11-28 03:33:31,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:31,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2024-11-28 03:33:31,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8816793893129771 [2024-11-28 03:33:31,059 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 302 flow. Second operand 4 states and 462 transitions. [2024-11-28 03:33:31,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 140 transitions, 388 flow [2024-11-28 03:33:31,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 140 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:33:31,063 INFO L231 Difference]: Finished difference. Result has 138 places, 130 transitions, 314 flow [2024-11-28 03:33:31,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=138, PETRI_TRANSITIONS=130} [2024-11-28 03:33:31,064 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 4 predicate places. [2024-11-28 03:33:31,064 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 130 transitions, 314 flow [2024-11-28 03:33:31,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:31,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:31,065 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, 1, 1, 1, 1, 1] [2024-11-28 03:33:31,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:33:31,065 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:31,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:31,066 INFO L85 PathProgramCache]: Analyzing trace with hash 519135157, now seen corresponding path program 1 times [2024-11-28 03:33:31,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:31,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911105735] [2024-11-28 03:33:31,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:31,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:31,316 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 03:33:31,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:31,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911105735] [2024-11-28 03:33:31,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911105735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:31,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:31,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:33:31,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573998311] [2024-11-28 03:33:31,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:31,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:31,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:31,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:31,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:31,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2024-11-28 03:33:31,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 130 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:31,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:31,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2024-11-28 03:33:31,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:34,259 INFO L124 PetriNetUnfolderBase]: 6248/15544 cut-off events. [2024-11-28 03:33:34,259 INFO L125 PetriNetUnfolderBase]: For 1589/1589 co-relation queries the response was YES. [2024-11-28 03:33:34,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25620 conditions, 15544 events. 6248/15544 cut-off events. For 1589/1589 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 157945 event pairs, 808 based on Foata normal form. 0/14506 useless extension candidates. Maximal degree in co-relation 8838. Up to 6781 conditions per place. [2024-11-28 03:33:34,373 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 62 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2024-11-28 03:33:34,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 161 transitions, 510 flow [2024-11-28 03:33:34,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:33:34,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:33:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2024-11-28 03:33:34,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8027989821882952 [2024-11-28 03:33:34,376 INFO L175 Difference]: Start difference. First operand has 138 places, 130 transitions, 314 flow. Second operand 6 states and 631 transitions. [2024-11-28 03:33:34,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 161 transitions, 510 flow [2024-11-28 03:33:34,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 161 transitions, 504 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:34,389 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 316 flow [2024-11-28 03:33:34,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2024-11-28 03:33:34,390 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 6 predicate places. [2024-11-28 03:33:34,390 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 316 flow [2024-11-28 03:33:34,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:34,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:34,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:34,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:33:34,391 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:34,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:34,392 INFO L85 PathProgramCache]: Analyzing trace with hash -330538487, now seen corresponding path program 1 times [2024-11-28 03:33:34,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:34,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582965272] [2024-11-28 03:33:34,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:34,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:34,426 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 03:33:34,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582965272] [2024-11-28 03:33:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582965272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:34,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:34,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:34,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224162009] [2024-11-28 03:33:34,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:34,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:34,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:34,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:34,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:34,464 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-28 03:33:34,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:34,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:34,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-28 03:33:34,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:38,056 INFO L124 PetriNetUnfolderBase]: 7160/22223 cut-off events. [2024-11-28 03:33:38,056 INFO L125 PetriNetUnfolderBase]: For 4968/5563 co-relation queries the response was YES. [2024-11-28 03:33:38,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34212 conditions, 22223 events. 7160/22223 cut-off events. For 4968/5563 co-relation queries the response was YES. Maximal size of possible extension queue 863. Compared 265639 event pairs, 5035 based on Foata normal form. 10/19757 useless extension candidates. Maximal degree in co-relation 27383. Up to 8447 conditions per place. [2024-11-28 03:33:38,345 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 36 selfloop transitions, 7 changer transitions 0/147 dead transitions. [2024-11-28 03:33:38,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 147 transitions, 468 flow [2024-11-28 03:33:38,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:38,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:38,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-28 03:33:38,351 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.905852417302799 [2024-11-28 03:33:38,351 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 316 flow. Second operand 3 states and 356 transitions. [2024-11-28 03:33:38,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 147 transitions, 468 flow [2024-11-28 03:33:38,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 147 transitions, 458 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:33:38,360 INFO L231 Difference]: Finished difference. Result has 139 places, 135 transitions, 360 flow [2024-11-28 03:33:38,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=139, PETRI_TRANSITIONS=135} [2024-11-28 03:33:38,361 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2024-11-28 03:33:38,361 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 135 transitions, 360 flow [2024-11-28 03:33:38,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:38,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:38,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:38,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:33:38,362 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:38,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2118936953, now seen corresponding path program 1 times [2024-11-28 03:33:38,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:38,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38865463] [2024-11-28 03:33:38,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:38,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:38,444 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 03:33:38,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:38,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38865463] [2024-11-28 03:33:38,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38865463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:38,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:38,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438285539] [2024-11-28 03:33:38,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:38,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:38,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:38,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:38,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:38,502 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-28 03:33:38,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 135 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:38,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:38,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-28 03:33:38,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:41,171 INFO L124 PetriNetUnfolderBase]: 4968/18140 cut-off events. [2024-11-28 03:33:41,171 INFO L125 PetriNetUnfolderBase]: For 2733/2797 co-relation queries the response was YES. [2024-11-28 03:33:41,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28074 conditions, 18140 events. 4968/18140 cut-off events. For 2733/2797 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 220180 event pairs, 2078 based on Foata normal form. 259/16273 useless extension candidates. Maximal degree in co-relation 22754. Up to 3640 conditions per place. [2024-11-28 03:33:41,438 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 40 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2024-11-28 03:33:41,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 156 transitions, 502 flow [2024-11-28 03:33:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:41,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2024-11-28 03:33:41,440 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8950381679389313 [2024-11-28 03:33:41,440 INFO L175 Difference]: Start difference. First operand has 139 places, 135 transitions, 360 flow. Second operand 4 states and 469 transitions. [2024-11-28 03:33:41,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 156 transitions, 502 flow [2024-11-28 03:33:41,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:41,459 INFO L231 Difference]: Finished difference. Result has 141 places, 136 transitions, 362 flow [2024-11-28 03:33:41,460 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=141, PETRI_TRANSITIONS=136} [2024-11-28 03:33:41,461 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 7 predicate places. [2024-11-28 03:33:41,461 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 136 transitions, 362 flow [2024-11-28 03:33:41,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:41,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:41,462 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, 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 03:33:41,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:33:41,463 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:41,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:41,463 INFO L85 PathProgramCache]: Analyzing trace with hash -374620366, now seen corresponding path program 1 times [2024-11-28 03:33:41,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:41,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363550636] [2024-11-28 03:33:41,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:41,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:41,587 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 03:33:41,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:41,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363550636] [2024-11-28 03:33:41,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363550636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:41,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:41,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:33:41,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565556609] [2024-11-28 03:33:41,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:41,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:33:41,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:41,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:33:41,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:33:41,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-28 03:33:41,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 136 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:41,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:41,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-28 03:33:41,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:45,449 INFO L124 PetriNetUnfolderBase]: 6364/23537 cut-off events. [2024-11-28 03:33:45,449 INFO L125 PetriNetUnfolderBase]: For 3160/3160 co-relation queries the response was YES. [2024-11-28 03:33:45,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35945 conditions, 23537 events. 6364/23537 cut-off events. For 3160/3160 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 298094 event pairs, 2751 based on Foata normal form. 3/20176 useless extension candidates. Maximal degree in co-relation 20507. Up to 5703 conditions per place. [2024-11-28 03:33:45,610 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 41 selfloop transitions, 7 changer transitions 0/158 dead transitions. [2024-11-28 03:33:45,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 158 transitions, 504 flow [2024-11-28 03:33:45,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:33:45,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:33:45,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 777 transitions. [2024-11-28 03:33:45,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8473282442748091 [2024-11-28 03:33:45,613 INFO L175 Difference]: Start difference. First operand has 141 places, 136 transitions, 362 flow. Second operand 7 states and 777 transitions. [2024-11-28 03:33:45,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 158 transitions, 504 flow [2024-11-28 03:33:45,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 158 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:45,628 INFO L231 Difference]: Finished difference. Result has 148 places, 139 transitions, 392 flow [2024-11-28 03:33:45,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=392, PETRI_PLACES=148, PETRI_TRANSITIONS=139} [2024-11-28 03:33:45,629 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 14 predicate places. [2024-11-28 03:33:45,629 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 139 transitions, 392 flow [2024-11-28 03:33:45,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:45,630 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:45,630 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2024-11-28 03:33:45,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:33:45,631 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:45,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:45,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1467039597, now seen corresponding path program 1 times [2024-11-28 03:33:45,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:45,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796532951] [2024-11-28 03:33:45,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:45,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:45,679 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 03:33:45,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:45,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796532951] [2024-11-28 03:33:45,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796532951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:45,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:45,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:45,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499031192] [2024-11-28 03:33:45,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:45,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:45,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:45,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:45,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:45,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-28 03:33:45,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 139 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:45,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:45,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-28 03:33:45,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:50,313 INFO L124 PetriNetUnfolderBase]: 8620/30231 cut-off events. [2024-11-28 03:33:50,314 INFO L125 PetriNetUnfolderBase]: For 11246/13302 co-relation queries the response was YES. [2024-11-28 03:33:50,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51447 conditions, 30231 events. 8620/30231 cut-off events. For 11246/13302 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 394891 event pairs, 4986 based on Foata normal form. 38/26916 useless extension candidates. Maximal degree in co-relation 50164. Up to 9839 conditions per place. [2024-11-28 03:33:50,555 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 38 selfloop transitions, 11 changer transitions 0/159 dead transitions. [2024-11-28 03:33:50,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 159 transitions, 569 flow [2024-11-28 03:33:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2024-11-28 03:33:50,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9033078880407125 [2024-11-28 03:33:50,557 INFO L175 Difference]: Start difference. First operand has 148 places, 139 transitions, 392 flow. Second operand 3 states and 355 transitions. [2024-11-28 03:33:50,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 159 transitions, 569 flow [2024-11-28 03:33:50,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 159 transitions, 559 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 03:33:50,610 INFO L231 Difference]: Finished difference. Result has 149 places, 148 transitions, 478 flow [2024-11-28 03:33:50,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=149, PETRI_TRANSITIONS=148} [2024-11-28 03:33:50,610 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 15 predicate places. [2024-11-28 03:33:50,610 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 148 transitions, 478 flow [2024-11-28 03:33:50,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:50,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:50,611 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:33:50,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:33:50,611 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:50,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:50,612 INFO L85 PathProgramCache]: Analyzing trace with hash -662572194, now seen corresponding path program 1 times [2024-11-28 03:33:50,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:50,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28918034] [2024-11-28 03:33:50,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:50,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:50,784 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 03:33:50,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:50,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28918034] [2024-11-28 03:33:50,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28918034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:50,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:50,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:33:50,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946623610] [2024-11-28 03:33:50,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:50,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:33:50,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:50,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:33:50,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:50,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-28 03:33:50,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 148 transitions, 478 flow. Second operand has 8 states, 8 states have (on average 105.625) internal successors, (845), 8 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:50,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:50,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-28 03:33:50,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:56,739 INFO L124 PetriNetUnfolderBase]: 9234/35955 cut-off events. [2024-11-28 03:33:56,739 INFO L125 PetriNetUnfolderBase]: For 10336/19340 co-relation queries the response was YES. [2024-11-28 03:33:57,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59421 conditions, 35955 events. 9234/35955 cut-off events. For 10336/19340 co-relation queries the response was YES. Maximal size of possible extension queue 1149. Compared 495731 event pairs, 2450 based on Foata normal form. 33/30935 useless extension candidates. Maximal degree in co-relation 28392. Up to 8114 conditions per place. [2024-11-28 03:33:57,319 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 55 selfloop transitions, 10 changer transitions 0/184 dead transitions. [2024-11-28 03:33:57,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 184 transitions, 690 flow [2024-11-28 03:33:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:33:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:33:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1106 transitions. [2024-11-28 03:33:57,321 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8442748091603054 [2024-11-28 03:33:57,321 INFO L175 Difference]: Start difference. First operand has 149 places, 148 transitions, 478 flow. Second operand 10 states and 1106 transitions. [2024-11-28 03:33:57,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 184 transitions, 690 flow [2024-11-28 03:33:57,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 184 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:57,394 INFO L231 Difference]: Finished difference. Result has 159 places, 151 transitions, 504 flow [2024-11-28 03:33:57,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=504, PETRI_PLACES=159, PETRI_TRANSITIONS=151} [2024-11-28 03:33:57,395 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 25 predicate places. [2024-11-28 03:33:57,396 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 151 transitions, 504 flow [2024-11-28 03:33:57,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 105.625) internal successors, (845), 8 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:57,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:57,396 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2024-11-28 03:33:57,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:33:57,397 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:57,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:57,398 INFO L85 PathProgramCache]: Analyzing trace with hash -678235807, now seen corresponding path program 1 times [2024-11-28 03:33:57,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:57,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793081027] [2024-11-28 03:33:57,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:57,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:57,487 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 03:33:57,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:57,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793081027] [2024-11-28 03:33:57,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793081027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:57,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:57,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:57,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661659597] [2024-11-28 03:33:57,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:57,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:57,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:57,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:57,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:57,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 131 [2024-11-28 03:33:57,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 151 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:57,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:57,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 131 [2024-11-28 03:33:57,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:58,150 INFO L124 PetriNetUnfolderBase]: 472/4722 cut-off events. [2024-11-28 03:33:58,150 INFO L125 PetriNetUnfolderBase]: For 1418/1672 co-relation queries the response was YES. [2024-11-28 03:33:58,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7181 conditions, 4722 events. 472/4722 cut-off events. For 1418/1672 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 50653 event pairs, 234 based on Foata normal form. 128/4386 useless extension candidates. Maximal degree in co-relation 6326. Up to 454 conditions per place. [2024-11-28 03:33:58,181 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 16 selfloop transitions, 8 changer transitions 0/149 dead transitions. [2024-11-28 03:33:58,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 149 transitions, 545 flow [2024-11-28 03:33:58,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:58,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:58,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2024-11-28 03:33:58,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.926208651399491 [2024-11-28 03:33:58,182 INFO L175 Difference]: Start difference. First operand has 159 places, 151 transitions, 504 flow. Second operand 3 states and 364 transitions. [2024-11-28 03:33:58,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 149 transitions, 545 flow [2024-11-28 03:33:58,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 149 transitions, 519 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 03:33:58,201 INFO L231 Difference]: Finished difference. Result has 155 places, 142 transitions, 440 flow [2024-11-28 03:33:58,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=155, PETRI_TRANSITIONS=142} [2024-11-28 03:33:58,202 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 21 predicate places. [2024-11-28 03:33:58,202 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 142 transitions, 440 flow [2024-11-28 03:33:58,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:58,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:58,203 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 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] [2024-11-28 03:33:58,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:33:58,203 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:58,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash -658068072, now seen corresponding path program 1 times [2024-11-28 03:33:58,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:58,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810026452] [2024-11-28 03:33:58,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:58,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:58,257 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 03:33:58,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:58,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810026452] [2024-11-28 03:33:58,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810026452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:58,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:58,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:58,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658420246] [2024-11-28 03:33:58,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:58,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:33:58,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:58,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:33:58,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:33:58,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-28 03:33:58,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 142 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:58,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:58,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-28 03:33:58,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:59,426 INFO L124 PetriNetUnfolderBase]: 934/5912 cut-off events. [2024-11-28 03:33:59,426 INFO L125 PetriNetUnfolderBase]: For 3693/3795 co-relation queries the response was YES. [2024-11-28 03:33:59,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10479 conditions, 5912 events. 934/5912 cut-off events. For 3693/3795 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 66545 event pairs, 666 based on Foata normal form. 4/5387 useless extension candidates. Maximal degree in co-relation 3816. Up to 1548 conditions per place. [2024-11-28 03:33:59,464 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2024-11-28 03:33:59,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 149 transitions, 544 flow [2024-11-28 03:33:59,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:33:59,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:33:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2024-11-28 03:33:59,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8778625954198473 [2024-11-28 03:33:59,465 INFO L175 Difference]: Start difference. First operand has 155 places, 142 transitions, 440 flow. Second operand 3 states and 345 transitions. [2024-11-28 03:33:59,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 149 transitions, 544 flow [2024-11-28 03:33:59,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 149 transitions, 536 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:33:59,473 INFO L231 Difference]: Finished difference. Result has 158 places, 145 transitions, 466 flow [2024-11-28 03:33:59,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=158, PETRI_TRANSITIONS=145} [2024-11-28 03:33:59,474 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 24 predicate places. [2024-11-28 03:33:59,474 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 145 transitions, 466 flow [2024-11-28 03:33:59,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:59,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:59,475 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:33:59,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:33:59,476 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:33:59,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:59,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1813445299, now seen corresponding path program 1 times [2024-11-28 03:33:59,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:59,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295620991] [2024-11-28 03:33:59,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:59,752 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 03:33:59,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:59,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295620991] [2024-11-28 03:33:59,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295620991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:59,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:59,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:33:59,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365997318] [2024-11-28 03:33:59,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:59,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:33:59,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:59,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:33:59,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:33:59,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 131 [2024-11-28 03:33:59,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 145 transitions, 466 flow. Second operand has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:59,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:59,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 131 [2024-11-28 03:33:59,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:01,951 INFO L124 PetriNetUnfolderBase]: 1216/8139 cut-off events. [2024-11-28 03:34:01,951 INFO L125 PetriNetUnfolderBase]: For 3460/3688 co-relation queries the response was YES. [2024-11-28 03:34:01,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13552 conditions, 8139 events. 1216/8139 cut-off events. For 3460/3688 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 88356 event pairs, 223 based on Foata normal form. 20/7402 useless extension candidates. Maximal degree in co-relation 5488. Up to 893 conditions per place. [2024-11-28 03:34:01,990 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 76 selfloop transitions, 14 changer transitions 1/203 dead transitions. [2024-11-28 03:34:01,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 203 transitions, 824 flow [2024-11-28 03:34:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:34:01,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 03:34:01,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1431 transitions. [2024-11-28 03:34:01,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8402818555490311 [2024-11-28 03:34:01,994 INFO L175 Difference]: Start difference. First operand has 158 places, 145 transitions, 466 flow. Second operand 13 states and 1431 transitions. [2024-11-28 03:34:01,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 203 transitions, 824 flow [2024-11-28 03:34:02,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 203 transitions, 812 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 03:34:02,005 INFO L231 Difference]: Finished difference. Result has 172 places, 148 transitions, 516 flow [2024-11-28 03:34:02,005 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=516, PETRI_PLACES=172, PETRI_TRANSITIONS=148} [2024-11-28 03:34:02,006 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 38 predicate places. [2024-11-28 03:34:02,006 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 148 transitions, 516 flow [2024-11-28 03:34:02,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:02,007 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:02,007 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 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] [2024-11-28 03:34:02,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 03:34:02,007 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:34:02,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:02,008 INFO L85 PathProgramCache]: Analyzing trace with hash -502028292, now seen corresponding path program 1 times [2024-11-28 03:34:02,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:02,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357013140] [2024-11-28 03:34:02,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:02,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:02,068 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 03:34:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:02,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357013140] [2024-11-28 03:34:02,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357013140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:02,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:02,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:34:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522133496] [2024-11-28 03:34:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:02,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:34:02,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:02,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:34:02,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:34:02,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-28 03:34:02,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 148 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:02,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:02,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-28 03:34:02,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:03,233 INFO L124 PetriNetUnfolderBase]: 883/5630 cut-off events. [2024-11-28 03:34:03,233 INFO L125 PetriNetUnfolderBase]: For 4093/4189 co-relation queries the response was YES. [2024-11-28 03:34:03,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10508 conditions, 5630 events. 883/5630 cut-off events. For 4093/4189 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 61497 event pairs, 677 based on Foata normal form. 4/5132 useless extension candidates. Maximal degree in co-relation 9689. Up to 1476 conditions per place. [2024-11-28 03:34:03,274 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2024-11-28 03:34:03,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 154 transitions, 611 flow [2024-11-28 03:34:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:34:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:34:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-28 03:34:03,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8753180661577609 [2024-11-28 03:34:03,278 INFO L175 Difference]: Start difference. First operand has 172 places, 148 transitions, 516 flow. Second operand 3 states and 344 transitions. [2024-11-28 03:34:03,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 154 transitions, 611 flow [2024-11-28 03:34:03,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 154 transitions, 581 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-11-28 03:34:03,296 INFO L231 Difference]: Finished difference. Result has 168 places, 151 transitions, 522 flow [2024-11-28 03:34:03,296 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=168, PETRI_TRANSITIONS=151} [2024-11-28 03:34:03,296 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 34 predicate places. [2024-11-28 03:34:03,297 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 151 transitions, 522 flow [2024-11-28 03:34:03,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:03,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:03,297 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 03:34:03,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 03:34:03,297 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:34:03,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:03,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1735050751, now seen corresponding path program 1 times [2024-11-28 03:34:03,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:03,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131750194] [2024-11-28 03:34:03,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:03,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:03,731 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 03:34:03,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:03,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131750194] [2024-11-28 03:34:03,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131750194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:03,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:03,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:34:03,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455784014] [2024-11-28 03:34:03,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:03,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:34:03,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:03,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:34:03,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:34:03,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2024-11-28 03:34:03,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 151 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:03,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:03,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2024-11-28 03:34:03,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:05,701 INFO L124 PetriNetUnfolderBase]: 2726/11128 cut-off events. [2024-11-28 03:34:05,702 INFO L125 PetriNetUnfolderBase]: For 4547/4832 co-relation queries the response was YES. [2024-11-28 03:34:05,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21466 conditions, 11128 events. 2726/11128 cut-off events. For 4547/4832 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 122004 event pairs, 1342 based on Foata normal form. 0/10424 useless extension candidates. Maximal degree in co-relation 19173. Up to 2509 conditions per place. [2024-11-28 03:34:05,791 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 59 selfloop transitions, 6 changer transitions 0/182 dead transitions. [2024-11-28 03:34:05,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 182 transitions, 746 flow [2024-11-28 03:34:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:34:05,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:34:05,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 641 transitions. [2024-11-28 03:34:05,793 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8155216284987278 [2024-11-28 03:34:05,793 INFO L175 Difference]: Start difference. First operand has 168 places, 151 transitions, 522 flow. Second operand 6 states and 641 transitions. [2024-11-28 03:34:05,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 182 transitions, 746 flow [2024-11-28 03:34:05,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 182 transitions, 732 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-28 03:34:05,834 INFO L231 Difference]: Finished difference. Result has 170 places, 150 transitions, 518 flow [2024-11-28 03:34:05,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=170, PETRI_TRANSITIONS=150} [2024-11-28 03:34:05,835 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 36 predicate places. [2024-11-28 03:34:05,835 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 150 transitions, 518 flow [2024-11-28 03:34:05,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:05,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:05,836 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 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] [2024-11-28 03:34:05,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:34:05,837 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:34:05,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash 211318863, now seen corresponding path program 1 times [2024-11-28 03:34:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:05,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749862641] [2024-11-28 03:34:05,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:05,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:06,177 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 03:34:06,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:06,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749862641] [2024-11-28 03:34:06,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749862641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:06,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:06,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:34:06,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127458685] [2024-11-28 03:34:06,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:06,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:34:06,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:06,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:34:06,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:34:06,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 131 [2024-11-28 03:34:06,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 150 transitions, 518 flow. Second operand has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:06,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:06,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 131 [2024-11-28 03:34:06,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:08,385 INFO L124 PetriNetUnfolderBase]: 1190/7524 cut-off events. [2024-11-28 03:34:08,386 INFO L125 PetriNetUnfolderBase]: For 4150/4378 co-relation queries the response was YES. [2024-11-28 03:34:08,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14306 conditions, 7524 events. 1190/7524 cut-off events. For 4150/4378 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 80752 event pairs, 159 based on Foata normal form. 48/7004 useless extension candidates. Maximal degree in co-relation 4960. Up to 557 conditions per place. [2024-11-28 03:34:08,439 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 90 selfloop transitions, 16 changer transitions 8/227 dead transitions. [2024-11-28 03:34:08,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 227 transitions, 974 flow [2024-11-28 03:34:08,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:34:08,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 03:34:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1763 transitions. [2024-11-28 03:34:08,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8411259541984732 [2024-11-28 03:34:08,443 INFO L175 Difference]: Start difference. First operand has 170 places, 150 transitions, 518 flow. Second operand 16 states and 1763 transitions. [2024-11-28 03:34:08,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 227 transitions, 974 flow [2024-11-28 03:34:08,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 227 transitions, 954 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-28 03:34:08,460 INFO L231 Difference]: Finished difference. Result has 176 places, 148 transitions, 518 flow [2024-11-28 03:34:08,460 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=518, PETRI_PLACES=176, PETRI_TRANSITIONS=148} [2024-11-28 03:34:08,460 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 42 predicate places. [2024-11-28 03:34:08,461 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 148 transitions, 518 flow [2024-11-28 03:34:08,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:08,461 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:08,461 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:08,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:34:08,461 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:34:08,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:08,463 INFO L85 PathProgramCache]: Analyzing trace with hash -550448311, now seen corresponding path program 1 times [2024-11-28 03:34:08,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:08,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131186764] [2024-11-28 03:34:08,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:08,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:08,531 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 03:34:08,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:08,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131186764] [2024-11-28 03:34:08,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131186764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:08,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:08,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:34:08,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459837950] [2024-11-28 03:34:08,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:08,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:34:08,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:08,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:34:08,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:34:08,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-28 03:34:08,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 148 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:08,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:08,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-28 03:34:08,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:09,714 INFO L124 PetriNetUnfolderBase]: 1353/8854 cut-off events. [2024-11-28 03:34:09,714 INFO L125 PetriNetUnfolderBase]: For 5201/5285 co-relation queries the response was YES. [2024-11-28 03:34:09,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16720 conditions, 8854 events. 1353/8854 cut-off events. For 5201/5285 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 105886 event pairs, 605 based on Foata normal form. 0/8294 useless extension candidates. Maximal degree in co-relation 15933. Up to 1591 conditions per place. [2024-11-28 03:34:09,768 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 30 selfloop transitions, 9 changer transitions 1/161 dead transitions. [2024-11-28 03:34:09,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 161 transitions, 652 flow [2024-11-28 03:34:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:34:09,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:34:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2024-11-28 03:34:09,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9033078880407125 [2024-11-28 03:34:09,770 INFO L175 Difference]: Start difference. First operand has 176 places, 148 transitions, 518 flow. Second operand 3 states and 355 transitions. [2024-11-28 03:34:09,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 161 transitions, 652 flow [2024-11-28 03:34:09,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 161 transitions, 584 flow, removed 6 selfloop flow, removed 21 redundant places. [2024-11-28 03:34:09,831 INFO L231 Difference]: Finished difference. Result has 159 places, 152 transitions, 526 flow [2024-11-28 03:34:09,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=159, PETRI_TRANSITIONS=152} [2024-11-28 03:34:09,831 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 25 predicate places. [2024-11-28 03:34:09,831 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 152 transitions, 526 flow [2024-11-28 03:34:09,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:09,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:09,832 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:09,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 03:34:09,832 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:34:09,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:09,833 INFO L85 PathProgramCache]: Analyzing trace with hash -400038011, now seen corresponding path program 1 times [2024-11-28 03:34:09,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:09,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660765884] [2024-11-28 03:34:09,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:09,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:09,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:34:09,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:09,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660765884] [2024-11-28 03:34:09,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660765884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:09,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:09,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:34:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138898673] [2024-11-28 03:34:09,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:09,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:34:09,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:09,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:34:09,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:34:10,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-28 03:34:10,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 152 transitions, 526 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:10,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:10,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-28 03:34:10,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:11,060 INFO L124 PetriNetUnfolderBase]: 806/5317 cut-off events. [2024-11-28 03:34:11,060 INFO L125 PetriNetUnfolderBase]: For 3505/3689 co-relation queries the response was YES. [2024-11-28 03:34:11,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9815 conditions, 5317 events. 806/5317 cut-off events. For 3505/3689 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 53014 event pairs, 221 based on Foata normal form. 80/5250 useless extension candidates. Maximal degree in co-relation 9151. Up to 610 conditions per place. [2024-11-28 03:34:11,088 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 44 selfloop transitions, 5 changer transitions 8/185 dead transitions. [2024-11-28 03:34:11,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 185 transitions, 752 flow [2024-11-28 03:34:11,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:34:11,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:34:11,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 588 transitions. [2024-11-28 03:34:11,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8977099236641222 [2024-11-28 03:34:11,090 INFO L175 Difference]: Start difference. First operand has 159 places, 152 transitions, 526 flow. Second operand 5 states and 588 transitions. [2024-11-28 03:34:11,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 185 transitions, 752 flow [2024-11-28 03:34:11,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 185 transitions, 734 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:34:11,099 INFO L231 Difference]: Finished difference. Result has 162 places, 153 transitions, 528 flow [2024-11-28 03:34:11,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=528, PETRI_PLACES=162, PETRI_TRANSITIONS=153} [2024-11-28 03:34:11,100 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 28 predicate places. [2024-11-28 03:34:11,100 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 153 transitions, 528 flow [2024-11-28 03:34:11,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:11,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:11,101 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 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, 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 03:34:11,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 03:34:11,102 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:34:11,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:11,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1194649709, now seen corresponding path program 1 times [2024-11-28 03:34:11,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:11,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121596601] [2024-11-28 03:34:11,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:34:13,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:13,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121596601] [2024-11-28 03:34:13,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121596601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:13,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535924026] [2024-11-28 03:34:13,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:13,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:13,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:13,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:13,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:34:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:13,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:34:13,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:14,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:34:14,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:34:14,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:34:15,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:34:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:34:15,278 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:18,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2024-11-28 03:34:18,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2024-11-28 03:34:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:34:18,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535924026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:18,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:18,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19, 18] total 54 [2024-11-28 03:34:18,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819543033] [2024-11-28 03:34:18,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:18,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-28 03:34:18,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:18,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-28 03:34:18,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=2607, Unknown=1, NotChecked=0, Total=2862 [2024-11-28 03:34:27,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2024-11-28 03:34:27,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 153 transitions, 528 flow. Second operand has 54 states, 54 states have (on average 96.74074074074075) internal successors, (5224), 54 states have internal predecessors, (5224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:27,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:27,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2024-11-28 03:34:27,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:30,725 INFO L124 PetriNetUnfolderBase]: 1748/7105 cut-off events. [2024-11-28 03:34:30,725 INFO L125 PetriNetUnfolderBase]: For 3934/4130 co-relation queries the response was YES. [2024-11-28 03:34:30,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14382 conditions, 7105 events. 1748/7105 cut-off events. For 3934/4130 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 69575 event pairs, 87 based on Foata normal form. 24/6917 useless extension candidates. Maximal degree in co-relation 6034. Up to 893 conditions per place. [2024-11-28 03:34:30,764 INFO L140 encePairwiseOnDemand]: 113/131 looper letters, 135 selfloop transitions, 28 changer transitions 8/278 dead transitions. [2024-11-28 03:34:30,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 278 transitions, 1239 flow [2024-11-28 03:34:30,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:34:30,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-28 03:34:30,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2521 transitions. [2024-11-28 03:34:30,769 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7697709923664122 [2024-11-28 03:34:30,769 INFO L175 Difference]: Start difference. First operand has 162 places, 153 transitions, 528 flow. Second operand 25 states and 2521 transitions. [2024-11-28 03:34:30,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 278 transitions, 1239 flow [2024-11-28 03:34:30,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 278 transitions, 1229 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 03:34:30,784 INFO L231 Difference]: Finished difference. Result has 191 places, 161 transitions, 626 flow [2024-11-28 03:34:30,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=626, PETRI_PLACES=191, PETRI_TRANSITIONS=161} [2024-11-28 03:34:30,785 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 57 predicate places. [2024-11-28 03:34:30,785 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 161 transitions, 626 flow [2024-11-28 03:34:30,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 96.74074074074075) internal successors, (5224), 54 states have internal predecessors, (5224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:34:30,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:30,788 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 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, 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 03:34:30,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:30,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-28 03:34:30,993 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 03:34:30,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:30,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1694885091, now seen corresponding path program 2 times [2024-11-28 03:34:30,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:30,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754605170] [2024-11-28 03:34:30,994 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:30,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:31,052 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:34:31,052 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:34:34,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:34,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754605170] [2024-11-28 03:34:34,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754605170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:34,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332299738] [2024-11-28 03:34:34,077 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:34,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:34,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:34,081 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:34,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc12dc4f-1421-48db-9ffc-1945bf2dff78/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:34:34,718 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:34:34,718 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:34,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:34:34,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:35,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:34:35,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:34:35,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-28 03:34:36,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:34:36,318 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:34:36,318 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:36,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2024-11-28 03:34:36,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2024-11-28 03:34:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:34:37,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332299738] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:37,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:37,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 20, 19] total 56 [2024-11-28 03:34:37,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331295193] [2024-11-28 03:34:37,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:37,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-28 03:34:37,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:37,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-28 03:34:37,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2869, Unknown=0, NotChecked=0, Total=3080