./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3b-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3b-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ --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 3b5ad22496d50c8537256f76c6605916315b4e46bfea0d123c3dfe0ede8ccd5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:34:57,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:34:58,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 21:34:58,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:34:58,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:34:58,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:34:58,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:34:58,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:34:58,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:34:58,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:34:58,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:34:58,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:34:58,088 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:34:58,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:34:58,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:34:58,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:34:58,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:34:58,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:34:58,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:34:58,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:34:58,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:34:58,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:34:58,105 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:34:58,106 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:34:58,106 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:34:58,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:34:58,107 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:34:58,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:34:58,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:34:58,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:34:58,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:34:58,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:34:58,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:34:58,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:34:58,111 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:34:58,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:34:58,112 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:34:58,112 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:34:58,112 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:34:58,112 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:34:58,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:34:58,113 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b5ad22496d50c8537256f76c6605916315b4e46bfea0d123c3dfe0ede8ccd5c [2023-11-23 21:34:58,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:34:58,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:34:58,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:34:58,452 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:34:58,453 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:34:58,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ldv-races/race-2_3b-container_of.i [2023-11-23 21:35:01,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:35:02,261 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:35:02,261 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/sv-benchmarks/c/ldv-races/race-2_3b-container_of.i [2023-11-23 21:35:02,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/data/a7a3d8b60/15261bd21adf4d9b99f4c5a5c500bf78/FLAG6a5cc3108 [2023-11-23 21:35:02,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/data/a7a3d8b60/15261bd21adf4d9b99f4c5a5c500bf78 [2023-11-23 21:35:02,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:35:02,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:35:02,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:35:02,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:35:02,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:35:02,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:35:02" (1/1) ... [2023-11-23 21:35:02,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4671ec85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:02, skipping insertion in model container [2023-11-23 21:35:02,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:35:02" (1/1) ... [2023-11-23 21:35:02,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:35:03,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:35:03,138 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:35:03,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:35:03,293 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:35:03,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03 WrapperNode [2023-11-23 21:35:03,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:35:03,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:35:03,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:35:03,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:35:03,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,369 INFO L138 Inliner]: procedures = 246, calls = 50, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 236 [2023-11-23 21:35:03,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:35:03,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:35:03,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:35:03,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:35:03,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:35:03,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:35:03,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:35:03,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:35:03,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (1/1) ... [2023-11-23 21:35:03,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:35:03,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:35:03,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:35:03,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae06b8f-f06a-467a-ad74-62b703556a01/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:35:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-23 21:35:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-23 21:35:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:35:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:35:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 21:35:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:35:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:35:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 21:35:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:35:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:35:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:35:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:35:03,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:35:03,551 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:35:03,874 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:35:03,877 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:35:04,548 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:35:04,571 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:35:04,571 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:35:04,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:35:04 BoogieIcfgContainer [2023-11-23 21:35:04,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:35:04,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:35:04,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:35:04,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:35:04,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:35:02" (1/3) ... [2023-11-23 21:35:04,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115eeaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:35:04, skipping insertion in model container [2023-11-23 21:35:04,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:35:03" (2/3) ... [2023-11-23 21:35:04,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115eeaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:35:04, skipping insertion in model container [2023-11-23 21:35:04,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:35:04" (3/3) ... [2023-11-23 21:35:04,583 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3b-container_of.i [2023-11-23 21:35:04,593 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:35:04,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:35:04,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-11-23 21:35:04,603 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:35:04,727 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 21:35:04,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 357 places, 365 transitions, 744 flow [2023-11-23 21:35:04,965 INFO L124 PetriNetUnfolderBase]: 18/453 cut-off events. [2023-11-23 21:35:04,965 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 21:35:04,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 453 events. 18/453 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 941 event pairs, 0 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 247. Up to 4 conditions per place. [2023-11-23 21:35:04,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 357 places, 365 transitions, 744 flow [2023-11-23 21:35:04,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 355 places, 362 transitions, 736 flow [2023-11-23 21:35:05,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:35:05,016 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5be20675, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:35:05,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-23 21:35:05,025 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:35:05,025 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2023-11-23 21:35:05,025 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:35:05,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:05,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:05,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-23 21:35:05,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:05,032 INFO L85 PathProgramCache]: Analyzing trace with hash 742578115, now seen corresponding path program 1 times [2023-11-23 21:35:05,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:05,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126814118] [2023-11-23 21:35:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:05,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:06,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:06,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126814118] [2023-11-23 21:35:06,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126814118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:06,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:06,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:35:06,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379130659] [2023-11-23 21:35:06,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:06,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:35:06,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:35:06,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:35:07,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 365 [2023-11-23 21:35:07,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 362 transitions, 736 flow. Second operand has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:07,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:07,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 365 [2023-11-23 21:35:07,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:16,388 INFO L124 PetriNetUnfolderBase]: 13301/41588 cut-off events. [2023-11-23 21:35:16,388 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-23 21:35:16,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62269 conditions, 41588 events. 13301/41588 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 482312 event pairs, 13300 based on Foata normal form. 1508/39729 useless extension candidates. Maximal degree in co-relation 61650. Up to 20625 conditions per place. [2023-11-23 21:35:16,708 INFO L140 encePairwiseOnDemand]: 347/365 looper letters, 79 selfloop transitions, 5 changer transitions 6/331 dead transitions. [2023-11-23 21:35:16,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 331 transitions, 842 flow [2023-11-23 21:35:16,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:35:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 21:35:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1669 transitions. [2023-11-23 21:35:16,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7621004566210046 [2023-11-23 21:35:16,736 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1669 transitions. [2023-11-23 21:35:16,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1669 transitions. [2023-11-23 21:35:16,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:16,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1669 transitions. [2023-11-23 21:35:16,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 278.1666666666667) internal successors, (1669), 6 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:16,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:16,767 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:16,769 INFO L175 Difference]: Start difference. First operand has 355 places, 362 transitions, 736 flow. Second operand 6 states and 1669 transitions. [2023-11-23 21:35:16,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 331 transitions, 842 flow [2023-11-23 21:35:16,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 331 transitions, 834 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 21:35:16,797 INFO L231 Difference]: Finished difference. Result has 337 places, 325 transitions, 664 flow [2023-11-23 21:35:16,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=664, PETRI_PLACES=337, PETRI_TRANSITIONS=325} [2023-11-23 21:35:16,804 INFO L281 CegarLoopForPetriNet]: 355 programPoint places, -18 predicate places. [2023-11-23 21:35:16,805 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 325 transitions, 664 flow [2023-11-23 21:35:16,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:16,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:16,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:16,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:35:16,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-23 21:35:16,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:16,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1526084260, now seen corresponding path program 1 times [2023-11-23 21:35:16,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:16,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942652818] [2023-11-23 21:35:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:16,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:17,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:17,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942652818] [2023-11-23 21:35:17,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942652818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:17,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:17,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:35:17,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764977036] [2023-11-23 21:35:17,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:17,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:35:17,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:17,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:35:17,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:35:18,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 365 [2023-11-23 21:35:18,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 325 transitions, 664 flow. Second operand has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:18,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:18,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 365 [2023-11-23 21:35:18,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:24,391 INFO L124 PetriNetUnfolderBase]: 13301/40434 cut-off events. [2023-11-23 21:35:24,391 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-23 21:35:24,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61087 conditions, 40434 events. 13301/40434 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 468261 event pairs, 13300 based on Foata normal form. 0/37543 useless extension candidates. Maximal degree in co-relation 61040. Up to 20625 conditions per place. [2023-11-23 21:35:24,579 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 79 selfloop transitions, 5 changer transitions 0/324 dead transitions. [2023-11-23 21:35:24,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 324 transitions, 830 flow [2023-11-23 21:35:24,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:35:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 21:35:24,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2023-11-23 21:35:24,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7566210045662101 [2023-11-23 21:35:24,587 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1657 transitions. [2023-11-23 21:35:24,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1657 transitions. [2023-11-23 21:35:24,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:24,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1657 transitions. [2023-11-23 21:35:24,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:24,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:24,602 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:24,603 INFO L175 Difference]: Start difference. First operand has 337 places, 325 transitions, 664 flow. Second operand 6 states and 1657 transitions. [2023-11-23 21:35:24,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 324 transitions, 830 flow [2023-11-23 21:35:24,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 324 transitions, 820 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 21:35:24,616 INFO L231 Difference]: Finished difference. Result has 330 places, 324 transitions, 662 flow [2023-11-23 21:35:24,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=662, PETRI_PLACES=330, PETRI_TRANSITIONS=324} [2023-11-23 21:35:24,618 INFO L281 CegarLoopForPetriNet]: 355 programPoint places, -25 predicate places. [2023-11-23 21:35:24,618 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 324 transitions, 662 flow [2023-11-23 21:35:24,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:24,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:24,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:24,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:35:24,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-23 21:35:24,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:24,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1566904273, now seen corresponding path program 1 times [2023-11-23 21:35:24,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:24,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288760462] [2023-11-23 21:35:24,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:24,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:25,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:25,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:25,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288760462] [2023-11-23 21:35:25,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288760462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:25,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:25,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:35:25,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272923825] [2023-11-23 21:35:25,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:25,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:35:25,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:25,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:35:25,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:35:26,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 365 [2023-11-23 21:35:26,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 324 transitions, 662 flow. Second operand has 6 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:26,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:26,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 365 [2023-11-23 21:35:26,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:34,174 INFO L124 PetriNetUnfolderBase]: 17453/50953 cut-off events. [2023-11-23 21:35:34,174 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-23 21:35:34,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77980 conditions, 50953 events. 17453/50953 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 706. Compared 590119 event pairs, 14075 based on Foata normal form. 0/47198 useless extension candidates. Maximal degree in co-relation 77917. Up to 25353 conditions per place. [2023-11-23 21:35:34,423 INFO L140 encePairwiseOnDemand]: 334/365 looper letters, 102 selfloop transitions, 102 changer transitions 0/441 dead transitions. [2023-11-23 21:35:34,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 441 transitions, 1304 flow [2023-11-23 21:35:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:35:34,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 21:35:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1765 transitions. [2023-11-23 21:35:34,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8059360730593608 [2023-11-23 21:35:34,430 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1765 transitions. [2023-11-23 21:35:34,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1765 transitions. [2023-11-23 21:35:34,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:34,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1765 transitions. [2023-11-23 21:35:34,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 294.1666666666667) internal successors, (1765), 6 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:34,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:34,446 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:34,446 INFO L175 Difference]: Start difference. First operand has 330 places, 324 transitions, 662 flow. Second operand 6 states and 1765 transitions. [2023-11-23 21:35:34,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 441 transitions, 1304 flow [2023-11-23 21:35:34,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 441 transitions, 1294 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 21:35:34,459 INFO L231 Difference]: Finished difference. Result has 335 places, 425 transitions, 1322 flow [2023-11-23 21:35:34,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1322, PETRI_PLACES=335, PETRI_TRANSITIONS=425} [2023-11-23 21:35:34,462 INFO L281 CegarLoopForPetriNet]: 355 programPoint places, -20 predicate places. [2023-11-23 21:35:34,462 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 425 transitions, 1322 flow [2023-11-23 21:35:34,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:34,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:34,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:34,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:35:34,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-23 21:35:34,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:34,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1259442128, now seen corresponding path program 1 times [2023-11-23 21:35:34,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:34,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943237319] [2023-11-23 21:35:34,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:34,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:34,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:34,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:34,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943237319] [2023-11-23 21:35:34,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943237319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:34,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:34,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:35:34,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901352569] [2023-11-23 21:35:34,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:34,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:35:34,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:34,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:35:34,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:35:34,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 365 [2023-11-23 21:35:34,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 425 transitions, 1322 flow. Second operand has 5 states, 5 states have (on average 329.6) internal successors, (1648), 5 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:34,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:34,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 365 [2023-11-23 21:35:34,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:37,156 INFO L124 PetriNetUnfolderBase]: 4332/12092 cut-off events. [2023-11-23 21:35:37,156 INFO L125 PetriNetUnfolderBase]: For 1716/1726 co-relation queries the response was YES. [2023-11-23 21:35:37,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22840 conditions, 12092 events. 4332/12092 cut-off events. For 1716/1726 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 109369 event pairs, 1668 based on Foata normal form. 1/11196 useless extension candidates. Maximal degree in co-relation 15345. Up to 4728 conditions per place. [2023-11-23 21:35:37,249 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 18 selfloop transitions, 4 changer transitions 2/430 dead transitions. [2023-11-23 21:35:37,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 430 transitions, 1380 flow [2023-11-23 21:35:37,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:35:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 21:35:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1993 transitions. [2023-11-23 21:35:37,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9100456621004567 [2023-11-23 21:35:37,256 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1993 transitions. [2023-11-23 21:35:37,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1993 transitions. [2023-11-23 21:35:37,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:37,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1993 transitions. [2023-11-23 21:35:37,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 332.1666666666667) internal successors, (1993), 6 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:37,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:37,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:37,272 INFO L175 Difference]: Start difference. First operand has 335 places, 425 transitions, 1322 flow. Second operand 6 states and 1993 transitions. [2023-11-23 21:35:37,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 430 transitions, 1380 flow [2023-11-23 21:35:37,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 430 transitions, 1380 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 21:35:37,352 INFO L231 Difference]: Finished difference. Result has 344 places, 428 transitions, 1353 flow [2023-11-23 21:35:37,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=1322, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1353, PETRI_PLACES=344, PETRI_TRANSITIONS=428} [2023-11-23 21:35:37,354 INFO L281 CegarLoopForPetriNet]: 355 programPoint places, -11 predicate places. [2023-11-23 21:35:37,354 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 428 transitions, 1353 flow [2023-11-23 21:35:37,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 329.6) internal successors, (1648), 5 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:37,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:37,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:37,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:35:37,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-23 21:35:37,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:37,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1895449331, now seen corresponding path program 1 times [2023-11-23 21:35:37,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:37,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132699079] [2023-11-23 21:35:37,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:37,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:38,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:38,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132699079] [2023-11-23 21:35:38,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132699079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:38,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:38,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:35:38,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176974807] [2023-11-23 21:35:38,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:38,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:35:38,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:35:38,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:35:38,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 365 [2023-11-23 21:35:38,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 428 transitions, 1353 flow. Second operand has 6 states, 6 states have (on average 264.5) internal successors, (1587), 6 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:38,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:38,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 365 [2023-11-23 21:35:38,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:47,022 INFO L124 PetriNetUnfolderBase]: 19350/52329 cut-off events. [2023-11-23 21:35:47,023 INFO L125 PetriNetUnfolderBase]: For 12683/13328 co-relation queries the response was YES. [2023-11-23 21:35:47,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105090 conditions, 52329 events. 19350/52329 cut-off events. For 12683/13328 co-relation queries the response was YES. Maximal size of possible extension queue 706. Compared 580447 event pairs, 11932 based on Foata normal form. 0/48678 useless extension candidates. Maximal degree in co-relation 104980. Up to 27548 conditions per place. [2023-11-23 21:35:47,438 INFO L140 encePairwiseOnDemand]: 334/365 looper letters, 199 selfloop transitions, 102 changer transitions 0/545 dead transitions. [2023-11-23 21:35:47,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 545 transitions, 2381 flow [2023-11-23 21:35:47,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:35:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 21:35:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1775 transitions. [2023-11-23 21:35:47,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8105022831050228 [2023-11-23 21:35:47,447 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1775 transitions. [2023-11-23 21:35:47,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1775 transitions. [2023-11-23 21:35:47,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:47,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1775 transitions. [2023-11-23 21:35:47,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 295.8333333333333) internal successors, (1775), 6 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:47,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:47,461 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:47,461 INFO L175 Difference]: Start difference. First operand has 344 places, 428 transitions, 1353 flow. Second operand 6 states and 1775 transitions. [2023-11-23 21:35:47,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 545 transitions, 2381 flow [2023-11-23 21:35:47,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 545 transitions, 2380 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:35:47,625 INFO L231 Difference]: Finished difference. Result has 353 places, 529 transitions, 2214 flow [2023-11-23 21:35:47,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=1352, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2214, PETRI_PLACES=353, PETRI_TRANSITIONS=529} [2023-11-23 21:35:47,627 INFO L281 CegarLoopForPetriNet]: 355 programPoint places, -2 predicate places. [2023-11-23 21:35:47,627 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 529 transitions, 2214 flow [2023-11-23 21:35:47,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.5) internal successors, (1587), 6 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:47,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:47,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:47,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:35:47,629 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-23 21:35:47,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:47,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1286754582, now seen corresponding path program 1 times [2023-11-23 21:35:47,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:47,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823223549] [2023-11-23 21:35:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:47,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:48,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:48,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823223549] [2023-11-23 21:35:48,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823223549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:48,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:48,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:35:48,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067200463] [2023-11-23 21:35:48,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:48,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:35:48,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:48,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:35:48,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30