./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu --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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:27,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:27,469 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:04:27,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:27,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:27,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:27,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:27,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:27,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:27,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:27,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:27,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:27,523 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:27,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:27,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:27,526 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:27,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:27,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:27,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:27,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:27,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:27,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:27,529 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:04:27,529 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:04:27,529 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:27,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:27,530 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:27,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:27,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:27,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:27,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:27,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:27,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:27,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:27,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:27,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:27,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:27,535 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:27,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:27,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:27,536 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:27,536 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_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2023-11-19 08:04:27,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:27,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:27,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:27,913 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:27,914 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:27,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2023-11-19 08:04:31,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:31,527 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:31,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2023-11-19 08:04:31,548 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/data/c662f7d0c/e4b34fa802e14522a881bdaab66aa594/FLAG37fa0e783 [2023-11-19 08:04:31,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/data/c662f7d0c/e4b34fa802e14522a881bdaab66aa594 [2023-11-19 08:04:31,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:31,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:31,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:31,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:31,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:31,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:31" (1/1) ... [2023-11-19 08:04:31,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c01790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:31, skipping insertion in model container [2023-11-19 08:04:31,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:31" (1/1) ... [2023-11-19 08:04:31,643 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:32,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:32,279 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:32,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:32,482 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:32,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32 WrapperNode [2023-11-19 08:04:32,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:32,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:32,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:32,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:32,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,569 INFO L138 Inliner]: procedures = 278, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 318 [2023-11-19 08:04:32,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:32,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:32,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:32,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:32,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:32,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:32,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:32,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:32,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (1/1) ... [2023-11-19 08:04:32,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:32,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:32,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:32,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_799c9c11-fe3a-48c0-9b27-3d61d6cdc959/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:04:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:04:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-19 08:04:32,738 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-19 08:04:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:04:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:04:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-19 08:04:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-19 08:04:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:04:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:04:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:04:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:04:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:32,743 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:04:32,971 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:32,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:33,600 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:33,613 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:33,613 INFO L302 CfgBuilder]: Removed 15 assume(true) statements. [2023-11-19 08:04:33,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:33 BoogieIcfgContainer [2023-11-19 08:04:33,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:33,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:33,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:33,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:33,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:31" (1/3) ... [2023-11-19 08:04:33,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445faebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:33, skipping insertion in model container [2023-11-19 08:04:33,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:32" (2/3) ... [2023-11-19 08:04:33,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445faebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:33, skipping insertion in model container [2023-11-19 08:04:33,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:33" (3/3) ... [2023-11-19 08:04:33,629 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2023-11-19 08:04:33,639 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:04:33,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:33,650 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-19 08:04:33,651 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:04:33,787 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 08:04:33,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 353 transitions, 726 flow [2023-11-19 08:04:34,209 INFO L124 PetriNetUnfolderBase]: 54/648 cut-off events. [2023-11-19 08:04:34,211 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 08:04:34,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 648 events. 54/648 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3005 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 323. Up to 8 conditions per place. [2023-11-19 08:04:34,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 353 transitions, 726 flow [2023-11-19 08:04:34,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 334 places, 353 transitions, 726 flow [2023-11-19 08:04:34,257 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:04:34,277 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 334 places, 353 transitions, 726 flow [2023-11-19 08:04:34,281 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 334 places, 353 transitions, 726 flow [2023-11-19 08:04:34,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 353 transitions, 726 flow [2023-11-19 08:04:34,479 INFO L124 PetriNetUnfolderBase]: 54/648 cut-off events. [2023-11-19 08:04:34,479 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 08:04:34,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 648 events. 54/648 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3005 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 323. Up to 8 conditions per place. [2023-11-19 08:04:34,529 INFO L119 LiptonReduction]: Number of co-enabled transitions 44588 [2023-11-19 08:05:01,469 INFO L134 LiptonReduction]: Checked pairs total: 228131 [2023-11-19 08:05:01,469 INFO L136 LiptonReduction]: Total number of compositions: 235 [2023-11-19 08:05:01,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:01,493 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;@567b6abd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:01,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-19 08:05:01,495 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:05:01,495 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:05:01,496 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:05:01,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:05:01,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:05:01,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-11-19 08:05:01,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:01,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1280, now seen corresponding path program 1 times [2023-11-19 08:05:01,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:01,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259584456] [2023-11-19 08:05:01,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:01,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:05:01,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:01,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259584456] [2023-11-19 08:05:01,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259584456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:01,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:01,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:05:01,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104237906] [2023-11-19 08:05:01,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:01,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:05:01,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:01,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:05:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:05:01,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 588 [2023-11-19 08:05:01,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 158 transitions, 336 flow. Second operand has 2 states, 2 states have (on average 329.5) internal successors, (659), 2 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:01,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:05:01,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 588 [2023-11-19 08:05:01,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:05:04,461 INFO L124 PetriNetUnfolderBase]: 6298/16184 cut-off events. [2023-11-19 08:05:04,461 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-11-19 08:05:04,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26019 conditions, 16184 events. 6298/16184 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 152569 event pairs, 5926 based on Foata normal form. 849/15246 useless extension candidates. Maximal degree in co-relation 24410. Up to 9718 conditions per place. [2023-11-19 08:05:04,602 INFO L140 encePairwiseOnDemand]: 572/588 looper letters, 57 selfloop transitions, 0 changer transitions 0/142 dead transitions. [2023-11-19 08:05:04,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 142 transitions, 418 flow [2023-11-19 08:05:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:05:04,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:05:04,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 731 transitions. [2023-11-19 08:05:04,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6215986394557823 [2023-11-19 08:05:04,622 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 731 transitions. [2023-11-19 08:05:04,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 731 transitions. [2023-11-19 08:05:04,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:05:04,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 731 transitions. [2023-11-19 08:05:04,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 365.5) internal successors, (731), 2 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:04,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:04,646 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:04,648 INFO L175 Difference]: Start difference. First operand has 145 places, 158 transitions, 336 flow. Second operand 2 states and 731 transitions. [2023-11-19 08:05:04,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 142 transitions, 418 flow [2023-11-19 08:05:04,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 142 transitions, 418 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:05:04,665 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 304 flow [2023-11-19 08:05:04,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=304, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2023-11-19 08:05:04,671 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, -3 predicate places. [2023-11-19 08:05:04,672 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 304 flow [2023-11-19 08:05:04,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 329.5) internal successors, (659), 2 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:04,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:05:04,673 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 08:05:04,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:05:04,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-11-19 08:05:04,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:04,675 INFO L85 PathProgramCache]: Analyzing trace with hash -760831808, now seen corresponding path program 1 times [2023-11-19 08:05:04,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:04,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758589373] [2023-11-19 08:05:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:04,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:05:04,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:05:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:05:04,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:05:04,881 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:05:04,883 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2023-11-19 08:05:04,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-19 08:05:04,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-19 08:05:04,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-19 08:05:04,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-19 08:05:04,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-19 08:05:04,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-19 08:05:04,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-19 08:05:04,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-19 08:05:04,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-11-19 08:05:04,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-19 08:05:04,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-19 08:05:04,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-19 08:05:04,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-19 08:05:04,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-19 08:05:04,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2023-11-19 08:05:04,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-19 08:05:04,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-19 08:05:04,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-19 08:05:04,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-19 08:05:04,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-11-19 08:05:04,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2023-11-19 08:05:04,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-19 08:05:04,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-19 08:05:04,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-19 08:05:04,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-19 08:05:04,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-19 08:05:04,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-19 08:05:04,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-19 08:05:04,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-11-19 08:05:04,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-19 08:05:04,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-19 08:05:04,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-19 08:05:04,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-19 08:05:04,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-19 08:05:04,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-11-19 08:05:04,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:05:04,917 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 08:05:04,920 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 08:05:04,920 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 08:05:05,050 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-19 08:05:05,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 569 transitions, 1182 flow [2023-11-19 08:05:05,949 INFO L124 PetriNetUnfolderBase]: 197/1888 cut-off events. [2023-11-19 08:05:05,949 INFO L125 PetriNetUnfolderBase]: For 72/90 co-relation queries the response was YES. [2023-11-19 08:05:06,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1977 conditions, 1888 events. 197/1888 cut-off events. For 72/90 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13295 event pairs, 2 based on Foata normal form. 0/1594 useless extension candidates. Maximal degree in co-relation 1167. Up to 32 conditions per place. [2023-11-19 08:05:06,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 569 transitions, 1182 flow [2023-11-19 08:05:06,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 534 places, 569 transitions, 1182 flow [2023-11-19 08:05:06,023 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:05:06,024 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 534 places, 569 transitions, 1182 flow [2023-11-19 08:05:06,024 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 534 places, 569 transitions, 1182 flow [2023-11-19 08:05:06,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 569 transitions, 1182 flow [2023-11-19 08:05:06,876 INFO L124 PetriNetUnfolderBase]: 197/1888 cut-off events. [2023-11-19 08:05:06,877 INFO L125 PetriNetUnfolderBase]: For 72/90 co-relation queries the response was YES. [2023-11-19 08:05:06,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1977 conditions, 1888 events. 197/1888 cut-off events. For 72/90 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13295 event pairs, 2 based on Foata normal form. 0/1594 useless extension candidates. Maximal degree in co-relation 1167. Up to 32 conditions per place. [2023-11-19 08:05:07,097 INFO L119 LiptonReduction]: Number of co-enabled transitions 181428