./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:00:54,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:00:54,637 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:00:54,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:00:54,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:00:54,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:00:54,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:00:54,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:00:54,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:00:54,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:00:54,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:00:54,690 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:00:54,690 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:00:54,691 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:00:54,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:00:54,692 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:00:54,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:00:54,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:00:54,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:00:54,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:00:54,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:00:54,697 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:00:54,697 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:00:54,698 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:00:54,698 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:00:54,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:00:54,700 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:00:54,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:00:54,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:00:54,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:00:54,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:54,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:00:54,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:00:54,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:00:54,704 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:00:54,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:00:54,705 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:00:54,706 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:00:54,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:00:54,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:00:54,708 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:00:54,712 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_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad [2023-11-06 23:00:55,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:00:55,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:00:55,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:00:55,202 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:00:55,202 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:00:55,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2023-11-06 23:00:59,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:00:59,380 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:00:59,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2023-11-06 23:00:59,397 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/data/8a6a534e0/b4e13f0fddcc4bf3a9c55b0a51a1c216/FLAGca750eaf4 [2023-11-06 23:00:59,419 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/data/8a6a534e0/b4e13f0fddcc4bf3a9c55b0a51a1c216 [2023-11-06 23:00:59,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:00:59,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:00:59,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:59,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:00:59,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:00:59,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22732bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59, skipping insertion in model container [2023-11-06 23:00:59,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,600 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:00:59,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:59,897 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:00:59,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:59,969 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:00:59,970 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:00:59,979 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:00:59,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59 WrapperNode [2023-11-06 23:00:59,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:59,982 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:59,982 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:00:59,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:00:59,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,091 INFO L138 Inliner]: procedures = 26, calls = 58, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 380 [2023-11-06 23:01:00,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:00,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:01:00,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:01:00,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:01:00,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:01:00,181 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:01:00,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:01:00,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:01:00,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:01:00,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:00,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:00,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:01:00,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:01:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:01:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:01:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:01:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:01:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 23:01:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 23:01:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 23:01:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 23:01:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 23:01:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 23:01:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:01:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 23:01:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 23:01:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:01:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:01:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:01:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:01:00,309 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:01:00,541 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:01:00,547 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:01:01,644 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:01:02,027 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:01:02,028 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 23:01:02,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:02 BoogieIcfgContainer [2023-11-06 23:01:02,034 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:01:02,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:01:02,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:01:02,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:01:02,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:00:59" (1/3) ... [2023-11-06 23:01:02,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7a8764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:02, skipping insertion in model container [2023-11-06 23:01:02,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (2/3) ... [2023-11-06 23:01:02,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7a8764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:02, skipping insertion in model container [2023-11-06 23:01:02,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:02" (3/3) ... [2023-11-06 23:01:02,048 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2023-11-06 23:01:02,060 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:01:02,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:01:02,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-06 23:01:02,074 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:01:02,225 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 23:01:02,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 520 places, 537 transitions, 1095 flow [2023-11-06 23:01:02,558 INFO L124 PetriNetUnfolderBase]: 27/534 cut-off events. [2023-11-06 23:01:02,559 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 23:01:02,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 534 events. 27/534 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 636 event pairs, 0 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2023-11-06 23:01:02,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 520 places, 537 transitions, 1095 flow [2023-11-06 23:01:02,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 470 places, 484 transitions, 986 flow [2023-11-06 23:01:02,588 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:01:02,600 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 484 transitions, 986 flow [2023-11-06 23:01:02,604 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 484 transitions, 986 flow [2023-11-06 23:01:02,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 484 transitions, 986 flow [2023-11-06 23:01:02,752 INFO L124 PetriNetUnfolderBase]: 24/484 cut-off events. [2023-11-06 23:01:02,752 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 23:01:02,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 484 events. 24/484 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 630 event pairs, 0 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2023-11-06 23:01:02,773 INFO L119 LiptonReduction]: Number of co-enabled transitions 14004 [2023-11-06 23:01:39,597 INFO L134 LiptonReduction]: Checked pairs total: 105257 [2023-11-06 23:01:39,598 INFO L136 LiptonReduction]: Total number of compositions: 495 [2023-11-06 23:01:39,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:01:39,623 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=LoopsAndPotentialCycles, 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;@595e94e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:01:39,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-11-06 23:01:39,625 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:01:39,626 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 23:01:39,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:01:39,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:39,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 23:01:39,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:01:39,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:39,633 INFO L85 PathProgramCache]: Analyzing trace with hash 2034, now seen corresponding path program 1 times [2023-11-06 23:01:39,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:39,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095139711] [2023-11-06 23:01:39,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:39,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:39,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:39,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095139711] [2023-11-06 23:01:39,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095139711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:39,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:39,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 23:01:39,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238590624] [2023-11-06 23:01:39,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:39,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:01:39,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:39,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:01:39,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:01:39,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 1032 [2023-11-06 23:01:39,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 143 transitions, 304 flow. Second operand has 2 states, 2 states have (on average 495.5) internal successors, (991), 2 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:39,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:39,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 1032 [2023-11-06 23:01:39,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:40,837 INFO L124 PetriNetUnfolderBase]: 1794/4416 cut-off events. [2023-11-06 23:01:40,837 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-11-06 23:01:40,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6936 conditions, 4416 events. 1794/4416 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 36706 event pairs, 1035 based on Foata normal form. 628/3966 useless extension candidates. Maximal degree in co-relation 6386. Up to 2378 conditions per place. [2023-11-06 23:01:40,895 INFO L140 encePairwiseOnDemand]: 986/1032 looper letters, 37 selfloop transitions, 0 changer transitions 1/97 dead transitions. [2023-11-06 23:01:40,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 97 transitions, 288 flow [2023-11-06 23:01:40,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:01:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:01:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1074 transitions. [2023-11-06 23:01:40,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5203488372093024 [2023-11-06 23:01:40,927 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1074 transitions. [2023-11-06 23:01:40,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1074 transitions. [2023-11-06 23:01:40,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:40,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1074 transitions. [2023-11-06 23:01:40,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 537.0) internal successors, (1074), 2 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:40,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1032.0) internal successors, (3096), 3 states have internal predecessors, (3096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:40,968 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1032.0) internal successors, (3096), 3 states have internal predecessors, (3096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:40,971 INFO L175 Difference]: Start difference. First operand has 141 places, 143 transitions, 304 flow. Second operand 2 states and 1074 transitions. [2023-11-06 23:01:40,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 97 transitions, 288 flow [2023-11-06 23:01:40,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 97 transitions, 276 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 23:01:40,985 INFO L231 Difference]: Finished difference. Result has 93 places, 96 transitions, 197 flow [2023-11-06 23:01:40,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=197, PETRI_PLACES=93, PETRI_TRANSITIONS=96} [2023-11-06 23:01:40,996 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -48 predicate places. [2023-11-06 23:01:40,997 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 96 transitions, 197 flow [2023-11-06 23:01:40,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 495.5) internal successors, (991), 2 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:40,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:40,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:40,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:01:41,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:01:41,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1797622645, now seen corresponding path program 1 times [2023-11-06 23:01:41,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:41,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985915791] [2023-11-06 23:01:41,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:41,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:41,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:41,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985915791] [2023-11-06 23:01:41,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985915791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:41,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:41,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:01:41,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294787353] [2023-11-06 23:01:41,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:41,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:01:41,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:41,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:01:41,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:01:41,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 1032 [2023-11-06 23:01:41,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 96 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:41,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:41,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 1032 [2023-11-06 23:01:41,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:42,498 INFO L124 PetriNetUnfolderBase]: 2419/5655 cut-off events. [2023-11-06 23:01:42,498 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-06 23:01:42,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9073 conditions, 5655 events. 2419/5655 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 46371 event pairs, 1756 based on Foata normal form. 0/4584 useless extension candidates. Maximal degree in co-relation 9070. Up to 3342 conditions per place. [2023-11-06 23:01:42,558 INFO L140 encePairwiseOnDemand]: 1028/1032 looper letters, 39 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-11-06 23:01:42,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 93 transitions, 271 flow [2023-11-06 23:01:42,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:01:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:01:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1462 transitions. [2023-11-06 23:01:42,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2023-11-06 23:01:42,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1462 transitions. [2023-11-06 23:01:42,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1462 transitions. [2023-11-06 23:01:42,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:42,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1462 transitions. [2023-11-06 23:01:42,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 487.3333333333333) internal successors, (1462), 3 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:42,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:42,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:42,636 INFO L175 Difference]: Start difference. First operand has 93 places, 96 transitions, 197 flow. Second operand 3 states and 1462 transitions. [2023-11-06 23:01:42,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 93 transitions, 271 flow [2023-11-06 23:01:42,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 271 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:01:42,642 INFO L231 Difference]: Finished difference. Result has 91 places, 93 transitions, 193 flow [2023-11-06 23:01:42,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=91, PETRI_TRANSITIONS=93} [2023-11-06 23:01:42,650 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -50 predicate places. [2023-11-06 23:01:42,651 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 93 transitions, 193 flow [2023-11-06 23:01:42,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:42,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:42,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:42,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:01:42,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:01:42,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:42,656 INFO L85 PathProgramCache]: Analyzing trace with hash -938317093, now seen corresponding path program 1 times [2023-11-06 23:01:42,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:42,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047042492] [2023-11-06 23:01:42,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:42,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:42,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047042492] [2023-11-06 23:01:42,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047042492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:42,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:42,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:01:42,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57717977] [2023-11-06 23:01:42,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:42,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:01:42,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:42,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:01:42,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:01:42,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 1032 [2023-11-06 23:01:42,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:42,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:42,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 1032 [2023-11-06 23:01:42,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:43,802 INFO L124 PetriNetUnfolderBase]: 2113/4728 cut-off events. [2023-11-06 23:01:43,803 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-06 23:01:43,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7600 conditions, 4728 events. 2113/4728 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 36874 event pairs, 1252 based on Foata normal form. 0/3611 useless extension candidates. Maximal degree in co-relation 7596. Up to 2795 conditions per place. [2023-11-06 23:01:43,852 INFO L140 encePairwiseOnDemand]: 1029/1032 looper letters, 38 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-11-06 23:01:43,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 267 flow [2023-11-06 23:01:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:01:43,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:01:43,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1487 transitions. [2023-11-06 23:01:43,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.480297157622739 [2023-11-06 23:01:43,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1487 transitions. [2023-11-06 23:01:43,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1487 transitions. [2023-11-06 23:01:43,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:43,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1487 transitions. [2023-11-06 23:01:43,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.6666666666667) internal successors, (1487), 3 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:43,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:43,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:43,882 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 193 flow. Second operand 3 states and 1487 transitions. [2023-11-06 23:01:43,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 91 transitions, 267 flow [2023-11-06 23:01:43,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:01:43,888 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 190 flow [2023-11-06 23:01:43,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2023-11-06 23:01:43,890 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -51 predicate places. [2023-11-06 23:01:43,891 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 190 flow [2023-11-06 23:01:43,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:43,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:43,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:43,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:01:43,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:01:43,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:43,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1322268012, now seen corresponding path program 1 times [2023-11-06 23:01:43,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:43,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317009647] [2023-11-06 23:01:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:43,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:44,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:44,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317009647] [2023-11-06 23:01:44,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317009647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:44,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:44,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:01:44,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774242685] [2023-11-06 23:01:44,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:44,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:01:44,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:44,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:01:44,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:01:44,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 1032 [2023-11-06 23:01:44,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:44,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:44,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 1032 [2023-11-06 23:01:44,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:45,261 INFO L124 PetriNetUnfolderBase]: 1794/4199 cut-off events. [2023-11-06 23:01:45,261 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-06 23:01:45,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6638 conditions, 4199 events. 1794/4199 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 33426 event pairs, 1035 based on Foata normal form. 0/3177 useless extension candidates. Maximal degree in co-relation 6634. Up to 2377 conditions per place. [2023-11-06 23:01:45,295 INFO L140 encePairwiseOnDemand]: 1029/1032 looper letters, 36 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-11-06 23:01:45,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 268 flow [2023-11-06 23:01:45,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:01:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:01:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1470 transitions. [2023-11-06 23:01:45,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748062015503876 [2023-11-06 23:01:45,302 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1470 transitions. [2023-11-06 23:01:45,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1470 transitions. [2023-11-06 23:01:45,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:45,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1470 transitions. [2023-11-06 23:01:45,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:45,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:45,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:45,324 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 190 flow. Second operand 3 states and 1470 transitions. [2023-11-06 23:01:45,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 268 flow [2023-11-06 23:01:45,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 267 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:01:45,328 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 201 flow [2023-11-06 23:01:45,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2023-11-06 23:01:45,331 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -49 predicate places. [2023-11-06 23:01:45,331 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 201 flow [2023-11-06 23:01:45,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:45,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:45,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:45,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:01:45,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:01:45,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1419361708, now seen corresponding path program 1 times [2023-11-06 23:01:45,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:45,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035214674] [2023-11-06 23:01:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:45,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 23:01:45,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:45,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035214674] [2023-11-06 23:01:45,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035214674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:45,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:45,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:01:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404268610] [2023-11-06 23:01:45,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:45,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:01:45,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:45,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:01:45,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:01:45,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 1032 [2023-11-06 23:01:45,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 477.75) internal successors, (1911), 4 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:45,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:45,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 1032 [2023-11-06 23:01:45,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:46,801 INFO L124 PetriNetUnfolderBase]: 1794/4201 cut-off events. [2023-11-06 23:01:46,802 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-06 23:01:46,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6648 conditions, 4201 events. 1794/4201 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 33397 event pairs, 1035 based on Foata normal form. 0/3178 useless extension candidates. Maximal degree in co-relation 6643. Up to 2376 conditions per place. [2023-11-06 23:01:46,842 INFO L140 encePairwiseOnDemand]: 1025/1032 looper letters, 34 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2023-11-06 23:01:46,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 285 flow [2023-11-06 23:01:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:01:46,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 23:01:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1942 transitions. [2023-11-06 23:01:46,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47044573643410853 [2023-11-06 23:01:46,853 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1942 transitions. [2023-11-06 23:01:46,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1942 transitions. [2023-11-06 23:01:46,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:46,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1942 transitions. [2023-11-06 23:01:46,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 485.5) internal successors, (1942), 4 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:46,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1032.0) internal successors, (5160), 5 states have internal predecessors, (5160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:46,883 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1032.0) internal successors, (5160), 5 states have internal predecessors, (5160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:46,883 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 201 flow. Second operand 4 states and 1942 transitions. [2023-11-06 23:01:46,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 285 flow [2023-11-06 23:01:46,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 281 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 23:01:46,892 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 225 flow [2023-11-06 23:01:46,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2023-11-06 23:01:46,895 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -46 predicate places. [2023-11-06 23:01:46,896 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 225 flow [2023-11-06 23:01:46,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 477.75) internal successors, (1911), 4 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:46,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:46,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:46,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:01:46,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:01:46,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:46,899 INFO L85 PathProgramCache]: Analyzing trace with hash 956331523, now seen corresponding path program 1 times [2023-11-06 23:01:46,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:46,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050319229] [2023-11-06 23:01:46,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:46,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 23:01:47,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:47,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050319229] [2023-11-06 23:01:47,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050319229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:47,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:47,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:01:47,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674008980] [2023-11-06 23:01:47,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:47,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:01:47,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:47,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:01:47,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:01:48,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 1032 [2023-11-06 23:01:48,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 476.0) internal successors, (2856), 6 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:48,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:48,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 1032 [2023-11-06 23:01:48,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:52,286 INFO L124 PetriNetUnfolderBase]: 9666/16010 cut-off events. [2023-11-06 23:01:52,286 INFO L125 PetriNetUnfolderBase]: For 25/38 co-relation queries the response was YES. [2023-11-06 23:01:52,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28470 conditions, 16010 events. 9666/16010 cut-off events. For 25/38 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 119795 event pairs, 2799 based on Foata normal form. 3/11688 useless extension candidates. Maximal degree in co-relation 28464. Up to 6917 conditions per place. [2023-11-06 23:01:52,465 INFO L140 encePairwiseOnDemand]: 1025/1032 looper letters, 125 selfloop transitions, 9 changer transitions 0/182 dead transitions. [2023-11-06 23:01:52,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 182 transitions, 671 flow [2023-11-06 23:01:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:01:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:01:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2970 transitions. [2023-11-06 23:01:52,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4796511627906977 [2023-11-06 23:01:52,484 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2970 transitions. [2023-11-06 23:01:52,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2970 transitions. [2023-11-06 23:01:52,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:52,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2970 transitions. [2023-11-06 23:01:52,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 495.0) internal successors, (2970), 6 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:52,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1032.0) internal successors, (7224), 7 states have internal predecessors, (7224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:52,533 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1032.0) internal successors, (7224), 7 states have internal predecessors, (7224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:52,543 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 225 flow. Second operand 6 states and 2970 transitions. [2023-11-06 23:01:52,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 182 transitions, 671 flow [2023-11-06 23:01:52,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 182 transitions, 670 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:01:52,551 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 288 flow [2023-11-06 23:01:52,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2023-11-06 23:01:52,553 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -37 predicate places. [2023-11-06 23:01:52,557 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 288 flow [2023-11-06 23:01:52,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 476.0) internal successors, (2856), 6 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:52,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:52,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:52,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:01:52,560 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:01:52,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:52,562 INFO L85 PathProgramCache]: Analyzing trace with hash -464881304, now seen corresponding path program 1 times [2023-11-06 23:01:52,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:52,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46663692] [2023-11-06 23:01:52,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:52,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 23:01:52,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:52,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46663692] [2023-11-06 23:01:52,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46663692] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:01:52,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525483357] [2023-11-06 23:01:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:52,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:01:52,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:52,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:01:52,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:01:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:53,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 23:01:53,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:01:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 23:01:53,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:01:53,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 23:01:53,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525483357] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:01:53,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:01:53,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 23:01:53,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195721189] [2023-11-06 23:01:53,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:01:53,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:01:53,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:53,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:01:53,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:01:54,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 1032 [2023-11-06 23:01:54,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 288 flow. Second operand has 12 states, 12 states have (on average 465.75) internal successors, (5589), 12 states have internal predecessors, (5589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:54,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:54,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 1032 [2023-11-06 23:01:54,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:01:57,762 INFO L124 PetriNetUnfolderBase]: 5445/11930 cut-off events. [2023-11-06 23:01:57,763 INFO L125 PetriNetUnfolderBase]: For 1677/1707 co-relation queries the response was YES. [2023-11-06 23:01:57,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21705 conditions, 11930 events. 5445/11930 cut-off events. For 1677/1707 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 107838 event pairs, 2933 based on Foata normal form. 0/9197 useless extension candidates. Maximal degree in co-relation 21695. Up to 5667 conditions per place. [2023-11-06 23:01:57,886 INFO L140 encePairwiseOnDemand]: 1022/1032 looper letters, 80 selfloop transitions, 22 changer transitions 0/159 dead transitions. [2023-11-06 23:01:57,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 159 transitions, 692 flow [2023-11-06 23:01:57,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 23:01:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 23:01:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4267 transitions. [2023-11-06 23:01:57,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45940999138673555 [2023-11-06 23:01:57,907 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4267 transitions. [2023-11-06 23:01:57,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4267 transitions. [2023-11-06 23:01:57,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:01:57,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4267 transitions. [2023-11-06 23:01:57,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 474.1111111111111) internal successors, (4267), 9 states have internal predecessors, (4267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:57,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 1032.0) internal successors, (10320), 10 states have internal predecessors, (10320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:57,949 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 1032.0) internal successors, (10320), 10 states have internal predecessors, (10320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:57,949 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 288 flow. Second operand 9 states and 4267 transitions. [2023-11-06 23:01:57,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 159 transitions, 692 flow [2023-11-06 23:01:57,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 159 transitions, 692 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:01:57,984 INFO L231 Difference]: Finished difference. Result has 116 places, 118 transitions, 443 flow [2023-11-06 23:01:57,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=443, PETRI_PLACES=116, PETRI_TRANSITIONS=118} [2023-11-06 23:01:57,985 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -25 predicate places. [2023-11-06 23:01:57,986 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 118 transitions, 443 flow [2023-11-06 23:01:57,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 465.75) internal successors, (5589), 12 states have internal predecessors, (5589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:57,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:01:57,988 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] [2023-11-06 23:01:58,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:01:58,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:01:58,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:01:58,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1102758580, now seen corresponding path program 1 times [2023-11-06 23:01:58,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:58,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629066391] [2023-11-06 23:01:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:58,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 23:01:58,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:58,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629066391] [2023-11-06 23:01:58,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629066391] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:01:58,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481617208] [2023-11-06 23:01:58,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:58,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:01:58,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:58,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:01:58,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:01:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 23:01:58,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:01:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 23:01:58,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:01:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 23:01:58,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481617208] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:01:58,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 23:01:58,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 23:01:58,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827947935] [2023-11-06 23:01:58,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 23:01:58,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:01:58,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:58,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:01:58,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:01:59,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 1032 [2023-11-06 23:01:59,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 118 transitions, 443 flow. Second operand has 12 states, 12 states have (on average 466.1666666666667) internal successors, (5594), 12 states have internal predecessors, (5594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:59,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:01:59,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 1032 [2023-11-06 23:01:59,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:02,323 INFO L124 PetriNetUnfolderBase]: 4485/10188 cut-off events. [2023-11-06 23:02:02,323 INFO L125 PetriNetUnfolderBase]: For 1701/1779 co-relation queries the response was YES. [2023-11-06 23:02:02,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18739 conditions, 10188 events. 4485/10188 cut-off events. For 1701/1779 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 92948 event pairs, 2563 based on Foata normal form. 33/7948 useless extension candidates. Maximal degree in co-relation 18724. Up to 5647 conditions per place. [2023-11-06 23:02:02,437 INFO L140 encePairwiseOnDemand]: 1022/1032 looper letters, 68 selfloop transitions, 22 changer transitions 0/148 dead transitions. [2023-11-06 23:02:02,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 148 transitions, 706 flow [2023-11-06 23:02:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 23:02:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 23:02:02,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4263 transitions. [2023-11-06 23:02:02,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4589793281653747 [2023-11-06 23:02:02,457 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4263 transitions. [2023-11-06 23:02:02,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4263 transitions. [2023-11-06 23:02:02,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:02,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4263 transitions. [2023-11-06 23:02:02,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 473.6666666666667) internal successors, (4263), 9 states have internal predecessors, (4263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:02,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 1032.0) internal successors, (10320), 10 states have internal predecessors, (10320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:02,498 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 1032.0) internal successors, (10320), 10 states have internal predecessors, (10320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:02,499 INFO L175 Difference]: Start difference. First operand has 116 places, 118 transitions, 443 flow. Second operand 9 states and 4263 transitions. [2023-11-06 23:02:02,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 148 transitions, 706 flow [2023-11-06 23:02:02,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 148 transitions, 678 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-11-06 23:02:02,531 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 476 flow [2023-11-06 23:02:02,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=476, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2023-11-06 23:02:02,532 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -16 predicate places. [2023-11-06 23:02:02,533 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 476 flow [2023-11-06 23:02:02,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 466.1666666666667) internal successors, (5594), 12 states have internal predecessors, (5594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:02,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:02,535 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:02,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:02:02,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8610cac0-765d-4374-b9fa-ebd1d0252002/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:02:02,746 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:02:02,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1902233025, now seen corresponding path program 2 times [2023-11-06 23:02:02,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:02,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832292128] [2023-11-06 23:02:02,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:02,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 23:02:03,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:03,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832292128] [2023-11-06 23:02:03,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832292128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:03,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:03,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:02:03,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616448583] [2023-11-06 23:02:03,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:03,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:02:03,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:03,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:02:03,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:02:04,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1032 [2023-11-06 23:02:04,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 476 flow. Second operand has 6 states, 6 states have (on average 468.6666666666667) internal successors, (2812), 6 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:04,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:04,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1032 [2023-11-06 23:02:04,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:10,240 INFO L124 PetriNetUnfolderBase]: 13510/22533 cut-off events. [2023-11-06 23:02:10,240 INFO L125 PetriNetUnfolderBase]: For 6486/7383 co-relation queries the response was YES. [2023-11-06 23:02:10,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49413 conditions, 22533 events. 13510/22533 cut-off events. For 6486/7383 co-relation queries the response was YES. Maximal size of possible extension queue 839. Compared 176297 event pairs, 3108 based on Foata normal form. 43/16703 useless extension candidates. Maximal degree in co-relation 49395. Up to 10560 conditions per place. [2023-11-06 23:02:10,523 INFO L140 encePairwiseOnDemand]: 1016/1032 looper letters, 126 selfloop transitions, 33 changer transitions 0/207 dead transitions. [2023-11-06 23:02:10,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 207 transitions, 1064 flow [2023-11-06 23:02:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:02:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:02:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2917 transitions. [2023-11-06 23:02:10,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710917312661499 [2023-11-06 23:02:10,539 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2917 transitions. [2023-11-06 23:02:10,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2917 transitions. [2023-11-06 23:02:10,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:10,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2917 transitions. [2023-11-06 23:02:10,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 486.1666666666667) internal successors, (2917), 6 states have internal predecessors, (2917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:10,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1032.0) internal successors, (7224), 7 states have internal predecessors, (7224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:10,573 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1032.0) internal successors, (7224), 7 states have internal predecessors, (7224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:10,573 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 476 flow. Second operand 6 states and 2917 transitions. [2023-11-06 23:02:10,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 207 transitions, 1064 flow [2023-11-06 23:02:10,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 207 transitions, 1027 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 23:02:10,942 INFO L231 Difference]: Finished difference. Result has 129 places, 152 transitions, 745 flow [2023-11-06 23:02:10,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=745, PETRI_PLACES=129, PETRI_TRANSITIONS=152} [2023-11-06 23:02:10,944 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -12 predicate places. [2023-11-06 23:02:10,944 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 152 transitions, 745 flow [2023-11-06 23:02:10,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 468.6666666666667) internal successors, (2812), 6 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:10,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:10,946 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:10,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 23:02:10,947 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:02:10,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:10,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1160331369, now seen corresponding path program 1 times [2023-11-06 23:02:10,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:10,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074691377] [2023-11-06 23:02:10,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:10,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 23:02:11,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:11,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074691377] [2023-11-06 23:02:11,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074691377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:11,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:11,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:02:11,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746030683] [2023-11-06 23:02:11,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:11,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:02:11,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:11,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:02:11,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:02:11,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 1032 [2023-11-06 23:02:11,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 152 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:11,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:11,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 1032 [2023-11-06 23:02:11,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:16,158 INFO L124 PetriNetUnfolderBase]: 14237/27902 cut-off events. [2023-11-06 23:02:16,158 INFO L125 PetriNetUnfolderBase]: For 22613/25213 co-relation queries the response was YES. [2023-11-06 23:02:16,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69304 conditions, 27902 events. 14237/27902 cut-off events. For 22613/25213 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 256384 event pairs, 3005 based on Foata normal form. 54/21640 useless extension candidates. Maximal degree in co-relation 69282. Up to 10907 conditions per place. [2023-11-06 23:02:16,590 INFO L140 encePairwiseOnDemand]: 1028/1032 looper letters, 130 selfloop transitions, 6 changer transitions 0/202 dead transitions. [2023-11-06 23:02:16,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 202 transitions, 1327 flow [2023-11-06 23:02:16,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:02:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:02:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1523 transitions. [2023-11-06 23:02:16,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4919250645994832 [2023-11-06 23:02:16,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1523 transitions. [2023-11-06 23:02:16,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1523 transitions. [2023-11-06 23:02:16,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:16,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1523 transitions. [2023-11-06 23:02:16,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.6666666666667) internal successors, (1523), 3 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:16,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:16,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:16,615 INFO L175 Difference]: Start difference. First operand has 129 places, 152 transitions, 745 flow. Second operand 3 states and 1523 transitions. [2023-11-06 23:02:16,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 202 transitions, 1327 flow [2023-11-06 23:02:16,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 202 transitions, 1327 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:02:16,850 INFO L231 Difference]: Finished difference. Result has 131 places, 155 transitions, 789 flow [2023-11-06 23:02:16,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=789, PETRI_PLACES=131, PETRI_TRANSITIONS=155} [2023-11-06 23:02:16,852 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -10 predicate places. [2023-11-06 23:02:16,852 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 155 transitions, 789 flow [2023-11-06 23:02:16,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:16,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:16,854 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:16,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 23:02:16,854 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:02:16,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:16,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1610538985, now seen corresponding path program 1 times [2023-11-06 23:02:16,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:16,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2334121] [2023-11-06 23:02:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:16,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:16,974 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 23:02:16,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:16,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2334121] [2023-11-06 23:02:16,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2334121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:16,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:16,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:02:16,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319458811] [2023-11-06 23:02:16,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:16,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:02:16,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:16,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:02:16,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:02:16,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 1032 [2023-11-06 23:02:16,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 155 transitions, 789 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:16,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:16,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 1032 [2023-11-06 23:02:16,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:21,649 INFO L124 PetriNetUnfolderBase]: 15498/28752 cut-off events. [2023-11-06 23:02:21,649 INFO L125 PetriNetUnfolderBase]: For 29150/32155 co-relation queries the response was YES. [2023-11-06 23:02:21,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74720 conditions, 28752 events. 15498/28752 cut-off events. For 29150/32155 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 254131 event pairs, 7319 based on Foata normal form. 49/22858 useless extension candidates. Maximal degree in co-relation 74697. Up to 19853 conditions per place. [2023-11-06 23:02:22,005 INFO L140 encePairwiseOnDemand]: 1029/1032 looper letters, 87 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2023-11-06 23:02:22,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 967 flow [2023-11-06 23:02:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:02:22,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:02:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1487 transitions. [2023-11-06 23:02:22,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.480297157622739 [2023-11-06 23:02:22,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1487 transitions. [2023-11-06 23:02:22,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1487 transitions. [2023-11-06 23:02:22,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:22,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1487 transitions. [2023-11-06 23:02:22,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.6666666666667) internal successors, (1487), 3 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:22,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:22,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1032.0) internal successors, (4128), 4 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:22,029 INFO L175 Difference]: Start difference. First operand has 131 places, 155 transitions, 789 flow. Second operand 3 states and 1487 transitions. [2023-11-06 23:02:22,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 967 flow [2023-11-06 23:02:22,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 153 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:02:22,230 INFO L231 Difference]: Finished difference. Result has 130 places, 153 transitions, 787 flow [2023-11-06 23:02:22,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=787, PETRI_PLACES=130, PETRI_TRANSITIONS=153} [2023-11-06 23:02:22,231 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -11 predicate places. [2023-11-06 23:02:22,231 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 153 transitions, 787 flow [2023-11-06 23:02:22,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:22,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:22,232 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:22,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 23:02:22,233 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:02:22,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:22,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1781579389, now seen corresponding path program 2 times [2023-11-06 23:02:22,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:22,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342797632] [2023-11-06 23:02:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:22,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 23:02:23,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:23,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342797632] [2023-11-06 23:02:23,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342797632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:23,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:23,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 23:02:23,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077703493] [2023-11-06 23:02:23,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:23,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:02:23,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:23,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:02:23,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:02:26,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 1032 [2023-11-06 23:02:26,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 153 transitions, 787 flow. Second operand has 11 states, 11 states have (on average 459.8181818181818) internal successors, (5058), 11 states have internal predecessors, (5058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:26,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:26,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 1032 [2023-11-06 23:02:26,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:35,657 INFO L124 PetriNetUnfolderBase]: 26799/41059 cut-off events. [2023-11-06 23:02:35,657 INFO L125 PetriNetUnfolderBase]: For 38322/46218 co-relation queries the response was YES. [2023-11-06 23:02:35,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112972 conditions, 41059 events. 26799/41059 cut-off events. For 38322/46218 co-relation queries the response was YES. Maximal size of possible extension queue 1072. Compared 301865 event pairs, 3082 based on Foata normal form. 1995/33567 useless extension candidates. Maximal degree in co-relation 112948. Up to 11856 conditions per place. [2023-11-06 23:02:36,154 INFO L140 encePairwiseOnDemand]: 1025/1032 looper letters, 226 selfloop transitions, 12 changer transitions 0/292 dead transitions. [2023-11-06 23:02:36,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 292 transitions, 1963 flow [2023-11-06 23:02:36,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 23:02:36,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 23:02:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3787 transitions. [2023-11-06 23:02:36,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4586967054263566 [2023-11-06 23:02:36,171 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3787 transitions. [2023-11-06 23:02:36,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3787 transitions. [2023-11-06 23:02:36,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:36,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3787 transitions. [2023-11-06 23:02:36,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 473.375) internal successors, (3787), 8 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:36,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1032.0) internal successors, (9288), 9 states have internal predecessors, (9288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:36,209 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1032.0) internal successors, (9288), 9 states have internal predecessors, (9288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:36,209 INFO L175 Difference]: Start difference. First operand has 130 places, 153 transitions, 787 flow. Second operand 8 states and 3787 transitions. [2023-11-06 23:02:36,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 292 transitions, 1963 flow [2023-11-06 23:02:37,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 292 transitions, 1952 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:02:37,029 INFO L231 Difference]: Finished difference. Result has 134 places, 152 transitions, 796 flow [2023-11-06 23:02:37,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=796, PETRI_PLACES=134, PETRI_TRANSITIONS=152} [2023-11-06 23:02:37,030 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -7 predicate places. [2023-11-06 23:02:37,031 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 152 transitions, 796 flow [2023-11-06 23:02:37,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 459.8181818181818) internal successors, (5058), 11 states have internal predecessors, (5058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:37,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:37,032 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:37,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 23:02:37,033 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:02:37,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:37,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1565778219, now seen corresponding path program 1 times [2023-11-06 23:02:37,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:37,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235161654] [2023-11-06 23:02:37,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:37,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 23:02:38,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:38,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235161654] [2023-11-06 23:02:38,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235161654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:38,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:38,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 23:02:38,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917488568] [2023-11-06 23:02:38,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:38,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:02:38,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:38,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:02:38,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:02:40,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 1032 [2023-11-06 23:02:40,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 152 transitions, 796 flow. Second operand has 9 states, 9 states have (on average 456.8888888888889) internal successors, (4112), 9 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:40,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:40,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 1032 [2023-11-06 23:02:40,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:02:51,656 INFO L124 PetriNetUnfolderBase]: 27560/50143 cut-off events. [2023-11-06 23:02:51,656 INFO L125 PetriNetUnfolderBase]: For 55442/62353 co-relation queries the response was YES. [2023-11-06 23:02:52,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130793 conditions, 50143 events. 27560/50143 cut-off events. For 55442/62353 co-relation queries the response was YES. Maximal size of possible extension queue 991. Compared 449156 event pairs, 5422 based on Foata normal form. 271/40437 useless extension candidates. Maximal degree in co-relation 130770. Up to 20568 conditions per place. [2023-11-06 23:02:52,237 INFO L140 encePairwiseOnDemand]: 1017/1032 looper letters, 196 selfloop transitions, 66 changer transitions 0/319 dead transitions. [2023-11-06 23:02:52,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 319 transitions, 2350 flow [2023-11-06 23:02:52,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 23:02:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 23:02:52,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4673 transitions. [2023-11-06 23:02:52,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45281007751937985 [2023-11-06 23:02:52,255 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4673 transitions. [2023-11-06 23:02:52,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4673 transitions. [2023-11-06 23:02:52,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:02:52,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4673 transitions. [2023-11-06 23:02:52,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 467.3) internal successors, (4673), 10 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:52,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1032.0) internal successors, (11352), 11 states have internal predecessors, (11352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:52,288 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1032.0) internal successors, (11352), 11 states have internal predecessors, (11352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:52,288 INFO L175 Difference]: Start difference. First operand has 134 places, 152 transitions, 796 flow. Second operand 10 states and 4673 transitions. [2023-11-06 23:02:52,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 319 transitions, 2350 flow [2023-11-06 23:02:52,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 319 transitions, 2328 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 23:02:52,479 INFO L231 Difference]: Finished difference. Result has 141 places, 204 transitions, 1489 flow [2023-11-06 23:02:52,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1032, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1489, PETRI_PLACES=141, PETRI_TRANSITIONS=204} [2023-11-06 23:02:52,482 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 0 predicate places. [2023-11-06 23:02:52,482 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 204 transitions, 1489 flow [2023-11-06 23:02:52,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 456.8888888888889) internal successors, (4112), 9 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:52,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:02:52,484 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:52,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 23:02:52,484 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-06 23:02:52,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:52,485 INFO L85 PathProgramCache]: Analyzing trace with hash 162118033, now seen corresponding path program 2 times [2023-11-06 23:02:52,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:52,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868521165] [2023-11-06 23:02:52,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:52,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 23:02:53,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:53,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868521165] [2023-11-06 23:02:53,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868521165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:53,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:53,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 23:02:53,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24262361] [2023-11-06 23:02:53,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:53,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:02:53,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:53,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:02:53,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:02:55,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 1032 [2023-11-06 23:02:55,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 204 transitions, 1489 flow. Second operand has 9 states, 9 states have (on average 456.8888888888889) internal successors, (4112), 9 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:55,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:02:55,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 1032 [2023-11-06 23:02:55,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand