./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:40,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:40,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:16:40,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:40,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:40,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:40,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:40,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:40,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:16:40,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:16:40,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:40,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:40,642 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:40,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:40,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:16:40,648 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:40,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:40,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:40,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:40,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:16:40,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:16:40,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:16:40,650 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:16:40,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:40,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:16:40,651 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:40,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:40,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:40,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:40,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:40,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:16:40,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:40,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:40,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:16:40,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:16:40,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:40,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:16:40,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:16:40,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:16:40,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:16:40,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:16:40,661 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_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe [2024-10-31 22:16:40,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:41,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:41,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:41,026 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:41,026 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:41,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c Unable to find full path for "g++" [2024-10-31 22:16:43,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:43,360 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:43,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2024-10-31 22:16:43,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/data/de977a5d4/f3d36c9f7dc64cd89eaf410160d0e820/FLAGf6f227160 [2024-10-31 22:16:43,385 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/data/de977a5d4/f3d36c9f7dc64cd89eaf410160d0e820 [2024-10-31 22:16:43,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:43,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:43,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:43,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:43,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:43,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368afc72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43, skipping insertion in model container [2024-10-31 22:16:43,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:43,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:43,779 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:43,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:43,867 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:43,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43 WrapperNode [2024-10-31 22:16:43,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:43,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:43,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:43,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:43,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,947 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 325 [2024-10-31 22:16:43,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:43,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:43,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:43,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:43,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:43,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:44,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:44,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:44,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:44,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:44,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:44,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:44,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (1/1) ... [2024-10-31 22:16:44,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:44,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:44,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:44,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8fee7a1-67b6-49b7-82ad-8ed787264acc/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:44,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:16:44,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:16:44,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:16:44,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:16:44,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:16:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:16:44,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:16:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:16:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:16:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:16:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:44,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:16:44,121 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:16:44,258 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:44,262 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:45,524 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:16:45,524 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:45,551 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:45,551 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:16:45,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:45 BoogieIcfgContainer [2024-10-31 22:16:45,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:45,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:16:45,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:16:45,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:16:45,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:16:43" (1/3) ... [2024-10-31 22:16:45,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec01fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:45, skipping insertion in model container [2024-10-31 22:16:45,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:43" (2/3) ... [2024-10-31 22:16:45,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec01fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:45, skipping insertion in model container [2024-10-31 22:16:45,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:45" (3/3) ... [2024-10-31 22:16:45,562 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2024-10-31 22:16:45,582 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:16:45,583 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2024-10-31 22:16:45,583 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:16:45,772 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:16:45,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 602 places, 625 transitions, 1271 flow [2024-10-31 22:16:46,101 INFO L124 PetriNetUnfolderBase]: 33/622 cut-off events. [2024-10-31 22:16:46,101 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:16:46,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 622 events. 33/622 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1409 event pairs, 0 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 371. Up to 3 conditions per place. [2024-10-31 22:16:46,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 602 places, 625 transitions, 1271 flow [2024-10-31 22:16:46,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 577 places, 597 transitions, 1212 flow [2024-10-31 22:16:46,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:16:46,139 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f4b1273, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:16:46,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 117 error locations. [2024-10-31 22:16:46,145 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:16:46,145 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-31 22:16:46,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:16:46,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:46,146 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:46,147 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:46,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:46,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1762537566, now seen corresponding path program 1 times [2024-10-31 22:16:46,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:46,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287717830] [2024-10-31 22:16:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:46,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:46,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:46,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287717830] [2024-10-31 22:16:46,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287717830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:46,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:46,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:46,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181715809] [2024-10-31 22:16:46,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:46,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:46,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:46,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:46,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:46,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 625 [2024-10-31 22:16:46,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 597 transitions, 1212 flow. Second operand has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:46,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:46,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 625 [2024-10-31 22:16:46,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:46,850 INFO L124 PetriNetUnfolderBase]: 30/787 cut-off events. [2024-10-31 22:16:46,850 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-31 22:16:46,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 836 conditions, 787 events. 30/787 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2557 event pairs, 5 based on Foata normal form. 30/670 useless extension candidates. Maximal degree in co-relation 440. Up to 28 conditions per place. [2024-10-31 22:16:46,866 INFO L140 encePairwiseOnDemand]: 608/625 looper letters, 14 selfloop transitions, 2 changer transitions 8/582 dead transitions. [2024-10-31 22:16:46,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 582 transitions, 1214 flow [2024-10-31 22:16:46,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1804 transitions. [2024-10-31 22:16:46,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9621333333333333 [2024-10-31 22:16:46,889 INFO L175 Difference]: Start difference. First operand has 577 places, 597 transitions, 1212 flow. Second operand 3 states and 1804 transitions. [2024-10-31 22:16:46,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 582 transitions, 1214 flow [2024-10-31 22:16:46,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 582 transitions, 1202 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:16:46,909 INFO L231 Difference]: Finished difference. Result has 572 places, 574 transitions, 1158 flow [2024-10-31 22:16:46,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1158, PETRI_PLACES=572, PETRI_TRANSITIONS=574} [2024-10-31 22:16:46,917 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -5 predicate places. [2024-10-31 22:16:46,917 INFO L471 AbstractCegarLoop]: Abstraction has has 572 places, 574 transitions, 1158 flow [2024-10-31 22:16:46,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:46,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:46,920 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:46,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:16:46,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:46,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:46,923 INFO L85 PathProgramCache]: Analyzing trace with hash 687983715, now seen corresponding path program 1 times [2024-10-31 22:16:46,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:46,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217587271] [2024-10-31 22:16:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:46,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:47,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:47,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217587271] [2024-10-31 22:16:47,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217587271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:47,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:47,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:47,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100973416] [2024-10-31 22:16:47,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:47,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:47,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:47,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:47,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:47,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 625 [2024-10-31 22:16:47,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 574 transitions, 1158 flow. Second operand has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:47,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:47,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 625 [2024-10-31 22:16:47,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:47,365 INFO L124 PetriNetUnfolderBase]: 38/919 cut-off events. [2024-10-31 22:16:47,365 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:16:47,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 919 events. 38/919 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3645 event pairs, 7 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 929. Up to 31 conditions per place. [2024-10-31 22:16:47,381 INFO L140 encePairwiseOnDemand]: 622/625 looper letters, 14 selfloop transitions, 2 changer transitions 0/573 dead transitions. [2024-10-31 22:16:47,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 573 transitions, 1188 flow [2024-10-31 22:16:47,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1790 transitions. [2024-10-31 22:16:47,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9546666666666667 [2024-10-31 22:16:47,387 INFO L175 Difference]: Start difference. First operand has 572 places, 574 transitions, 1158 flow. Second operand 3 states and 1790 transitions. [2024-10-31 22:16:47,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 573 transitions, 1188 flow [2024-10-31 22:16:47,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 573 transitions, 1184 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:47,398 INFO L231 Difference]: Finished difference. Result has 563 places, 573 transitions, 1156 flow [2024-10-31 22:16:47,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1156, PETRI_PLACES=563, PETRI_TRANSITIONS=573} [2024-10-31 22:16:47,400 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -14 predicate places. [2024-10-31 22:16:47,400 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 573 transitions, 1156 flow [2024-10-31 22:16:47,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:47,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:47,402 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:47,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:16:47,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:47,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1999099141, now seen corresponding path program 1 times [2024-10-31 22:16:47,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:47,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826075262] [2024-10-31 22:16:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:47,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:47,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:47,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826075262] [2024-10-31 22:16:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826075262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:47,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:47,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:47,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56708232] [2024-10-31 22:16:47,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:47,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:47,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:47,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:47,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:47,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 625 [2024-10-31 22:16:47,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 573 transitions, 1156 flow. Second operand has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:47,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:47,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 625 [2024-10-31 22:16:47,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:47,687 INFO L124 PetriNetUnfolderBase]: 26/652 cut-off events. [2024-10-31 22:16:47,688 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:16:47,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 652 events. 26/652 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1737 event pairs, 7 based on Foata normal form. 0/546 useless extension candidates. Maximal degree in co-relation 648. Up to 28 conditions per place. [2024-10-31 22:16:47,697 INFO L140 encePairwiseOnDemand]: 622/625 looper letters, 14 selfloop transitions, 2 changer transitions 0/572 dead transitions. [2024-10-31 22:16:47,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 572 transitions, 1186 flow [2024-10-31 22:16:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1790 transitions. [2024-10-31 22:16:47,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9546666666666667 [2024-10-31 22:16:47,705 INFO L175 Difference]: Start difference. First operand has 563 places, 573 transitions, 1156 flow. Second operand 3 states and 1790 transitions. [2024-10-31 22:16:47,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 572 transitions, 1186 flow [2024-10-31 22:16:47,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 572 transitions, 1182 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:47,716 INFO L231 Difference]: Finished difference. Result has 562 places, 572 transitions, 1154 flow [2024-10-31 22:16:47,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1154, PETRI_PLACES=562, PETRI_TRANSITIONS=572} [2024-10-31 22:16:47,718 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -15 predicate places. [2024-10-31 22:16:47,719 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 572 transitions, 1154 flow [2024-10-31 22:16:47,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:47,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:47,722 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:47,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:16:47,722 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:47,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:47,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1198139045, now seen corresponding path program 1 times [2024-10-31 22:16:47,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:47,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567647308] [2024-10-31 22:16:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:47,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:47,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:47,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567647308] [2024-10-31 22:16:47,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567647308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:47,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:47,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:47,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230350758] [2024-10-31 22:16:47,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:47,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:47,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:47,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:47,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:47,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 587 out of 625 [2024-10-31 22:16:47,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 572 transitions, 1154 flow. Second operand has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:47,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:47,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 587 of 625 [2024-10-31 22:16:47,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:48,107 INFO L124 PetriNetUnfolderBase]: 48/971 cut-off events. [2024-10-31 22:16:48,107 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:16:48,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 971 events. 48/971 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4104 event pairs, 12 based on Foata normal form. 0/796 useless extension candidates. Maximal degree in co-relation 982. Up to 48 conditions per place. [2024-10-31 22:16:48,125 INFO L140 encePairwiseOnDemand]: 619/625 looper letters, 16 selfloop transitions, 1 changer transitions 0/567 dead transitions. [2024-10-31 22:16:48,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 567 transitions, 1178 flow [2024-10-31 22:16:48,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:48,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1783 transitions. [2024-10-31 22:16:48,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9509333333333333 [2024-10-31 22:16:48,130 INFO L175 Difference]: Start difference. First operand has 562 places, 572 transitions, 1154 flow. Second operand 3 states and 1783 transitions. [2024-10-31 22:16:48,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 567 transitions, 1178 flow [2024-10-31 22:16:48,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 567 transitions, 1174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:48,142 INFO L231 Difference]: Finished difference. Result has 557 places, 567 transitions, 1142 flow [2024-10-31 22:16:48,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=555, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=557, PETRI_TRANSITIONS=567} [2024-10-31 22:16:48,143 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -20 predicate places. [2024-10-31 22:16:48,144 INFO L471 AbstractCegarLoop]: Abstraction has has 557 places, 567 transitions, 1142 flow [2024-10-31 22:16:48,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:48,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:48,145 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:48,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:16:48,146 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:48,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash 341110075, now seen corresponding path program 1 times [2024-10-31 22:16:48,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:48,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610011145] [2024-10-31 22:16:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:48,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:49,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:49,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610011145] [2024-10-31 22:16:49,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610011145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:49,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:49,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:49,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223106388] [2024-10-31 22:16:49,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:49,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:16:49,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:49,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:49,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:49,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 625 [2024-10-31 22:16:49,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 567 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 514.5) internal successors, (3087), 6 states have internal predecessors, (3087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:49,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:49,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 625 [2024-10-31 22:16:49,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:52,911 INFO L124 PetriNetUnfolderBase]: 2269/12731 cut-off events. [2024-10-31 22:16:52,911 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2024-10-31 22:16:53,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15684 conditions, 12731 events. 2269/12731 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 149095 event pairs, 1520 based on Foata normal form. 0/10038 useless extension candidates. Maximal degree in co-relation 15635. Up to 2844 conditions per place. [2024-10-31 22:16:53,093 INFO L140 encePairwiseOnDemand]: 607/625 looper letters, 78 selfloop transitions, 15 changer transitions 0/564 dead transitions. [2024-10-31 22:16:53,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 564 transitions, 1322 flow [2024-10-31 22:16:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:53,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:53,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3174 transitions. [2024-10-31 22:16:53,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8464 [2024-10-31 22:16:53,102 INFO L175 Difference]: Start difference. First operand has 557 places, 567 transitions, 1142 flow. Second operand 6 states and 3174 transitions. [2024-10-31 22:16:53,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 564 transitions, 1322 flow [2024-10-31 22:16:53,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 564 transitions, 1321 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:16:53,116 INFO L231 Difference]: Finished difference. Result has 558 places, 564 transitions, 1165 flow [2024-10-31 22:16:53,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1135, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1165, PETRI_PLACES=558, PETRI_TRANSITIONS=564} [2024-10-31 22:16:53,118 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -19 predicate places. [2024-10-31 22:16:53,118 INFO L471 AbstractCegarLoop]: Abstraction has has 558 places, 564 transitions, 1165 flow [2024-10-31 22:16:53,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 514.5) internal successors, (3087), 6 states have internal predecessors, (3087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:53,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:53,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:53,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:16:53,123 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:53,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:53,125 INFO L85 PathProgramCache]: Analyzing trace with hash -717972352, now seen corresponding path program 1 times [2024-10-31 22:16:53,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:53,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900378130] [2024-10-31 22:16:53,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:53,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:53,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:53,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:53,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900378130] [2024-10-31 22:16:53,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900378130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:53,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:53,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:53,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165262520] [2024-10-31 22:16:53,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:53,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:53,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:53,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:53,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 625 [2024-10-31 22:16:53,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 564 transitions, 1165 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:53,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:53,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 625 [2024-10-31 22:16:53,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:53,447 INFO L124 PetriNetUnfolderBase]: 27/710 cut-off events. [2024-10-31 22:16:53,447 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:16:53,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 710 events. 27/710 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2156 event pairs, 5 based on Foata normal form. 0/599 useless extension candidates. Maximal degree in co-relation 711. Up to 24 conditions per place. [2024-10-31 22:16:53,456 INFO L140 encePairwiseOnDemand]: 622/625 looper letters, 13 selfloop transitions, 2 changer transitions 0/563 dead transitions. [2024-10-31 22:16:53,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 563 transitions, 1193 flow [2024-10-31 22:16:53,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1792 transitions. [2024-10-31 22:16:53,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9557333333333333 [2024-10-31 22:16:53,461 INFO L175 Difference]: Start difference. First operand has 558 places, 564 transitions, 1165 flow. Second operand 3 states and 1792 transitions. [2024-10-31 22:16:53,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 563 transitions, 1193 flow [2024-10-31 22:16:53,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 563 transitions, 1163 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:16:53,472 INFO L231 Difference]: Finished difference. Result has 554 places, 563 transitions, 1137 flow [2024-10-31 22:16:53,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1133, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1137, PETRI_PLACES=554, PETRI_TRANSITIONS=563} [2024-10-31 22:16:53,474 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -23 predicate places. [2024-10-31 22:16:53,474 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 563 transitions, 1137 flow [2024-10-31 22:16:53,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:53,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:53,476 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:53,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:16:53,476 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:53,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:53,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1166514757, now seen corresponding path program 1 times [2024-10-31 22:16:53,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:53,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762234404] [2024-10-31 22:16:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:53,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:53,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:53,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762234404] [2024-10-31 22:16:53,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762234404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:53,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:53,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:53,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565493496] [2024-10-31 22:16:53,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:53,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:53,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:53,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:53,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:53,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 587 out of 625 [2024-10-31 22:16:53,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 563 transitions, 1137 flow. Second operand has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:53,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:53,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 587 of 625 [2024-10-31 22:16:53,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:53,819 INFO L124 PetriNetUnfolderBase]: 73/1294 cut-off events. [2024-10-31 22:16:53,820 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:16:53,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 1294 events. 73/1294 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7105 event pairs, 20 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 1329. Up to 65 conditions per place. [2024-10-31 22:16:53,841 INFO L140 encePairwiseOnDemand]: 619/625 looper letters, 16 selfloop transitions, 1 changer transitions 0/558 dead transitions. [2024-10-31 22:16:53,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 558 transitions, 1161 flow [2024-10-31 22:16:53,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1783 transitions. [2024-10-31 22:16:53,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9509333333333333 [2024-10-31 22:16:53,846 INFO L175 Difference]: Start difference. First operand has 554 places, 563 transitions, 1137 flow. Second operand 3 states and 1783 transitions. [2024-10-31 22:16:53,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 558 transitions, 1161 flow [2024-10-31 22:16:53,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 558 transitions, 1157 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:53,856 INFO L231 Difference]: Finished difference. Result has 549 places, 558 transitions, 1125 flow [2024-10-31 22:16:53,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1125, PETRI_PLACES=549, PETRI_TRANSITIONS=558} [2024-10-31 22:16:53,857 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -28 predicate places. [2024-10-31 22:16:53,857 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 558 transitions, 1125 flow [2024-10-31 22:16:53,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:53,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:53,859 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:53,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:16:53,860 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:53,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:53,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1867829806, now seen corresponding path program 1 times [2024-10-31 22:16:53,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:53,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602550543] [2024-10-31 22:16:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:53,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:53,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:53,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602550543] [2024-10-31 22:16:53,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602550543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:53,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:53,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528895881] [2024-10-31 22:16:53,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:53,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:53,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:53,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:53,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:53,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 625 [2024-10-31 22:16:53,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 558 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:53,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:53,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 625 [2024-10-31 22:16:53,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:54,144 INFO L124 PetriNetUnfolderBase]: 35/840 cut-off events. [2024-10-31 22:16:54,145 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:16:54,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 880 conditions, 840 events. 35/840 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3063 event pairs, 7 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 830. Up to 27 conditions per place. [2024-10-31 22:16:54,156 INFO L140 encePairwiseOnDemand]: 622/625 looper letters, 13 selfloop transitions, 2 changer transitions 0/557 dead transitions. [2024-10-31 22:16:54,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 557 transitions, 1153 flow [2024-10-31 22:16:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1792 transitions. [2024-10-31 22:16:54,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9557333333333333 [2024-10-31 22:16:54,162 INFO L175 Difference]: Start difference. First operand has 549 places, 558 transitions, 1125 flow. Second operand 3 states and 1792 transitions. [2024-10-31 22:16:54,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 557 transitions, 1153 flow [2024-10-31 22:16:54,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 557 transitions, 1152 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:16:54,172 INFO L231 Difference]: Finished difference. Result has 549 places, 557 transitions, 1126 flow [2024-10-31 22:16:54,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=549, PETRI_TRANSITIONS=557} [2024-10-31 22:16:54,175 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -28 predicate places. [2024-10-31 22:16:54,175 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 557 transitions, 1126 flow [2024-10-31 22:16:54,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:54,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:54,178 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:54,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:16:54,178 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:54,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash -887836552, now seen corresponding path program 1 times [2024-10-31 22:16:54,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:54,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612392794] [2024-10-31 22:16:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:54,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:54,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:54,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612392794] [2024-10-31 22:16:54,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612392794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:54,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:54,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:54,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928391170] [2024-10-31 22:16:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:54,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:54,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:54,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:54,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:54,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 587 out of 625 [2024-10-31 22:16:54,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 557 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:54,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:54,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 587 of 625 [2024-10-31 22:16:54,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:54,532 INFO L124 PetriNetUnfolderBase]: 70/1155 cut-off events. [2024-10-31 22:16:54,533 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-31 22:16:54,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1235 conditions, 1155 events. 70/1155 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5650 event pairs, 20 based on Foata normal form. 0/961 useless extension candidates. Maximal degree in co-relation 1185. Up to 67 conditions per place. [2024-10-31 22:16:54,555 INFO L140 encePairwiseOnDemand]: 619/625 looper letters, 16 selfloop transitions, 1 changer transitions 0/552 dead transitions. [2024-10-31 22:16:54,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 552 transitions, 1150 flow [2024-10-31 22:16:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:54,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1783 transitions. [2024-10-31 22:16:54,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9509333333333333 [2024-10-31 22:16:54,561 INFO L175 Difference]: Start difference. First operand has 549 places, 557 transitions, 1126 flow. Second operand 3 states and 1783 transitions. [2024-10-31 22:16:54,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 552 transitions, 1150 flow [2024-10-31 22:16:54,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 552 transitions, 1146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:54,571 INFO L231 Difference]: Finished difference. Result has 544 places, 552 transitions, 1114 flow [2024-10-31 22:16:54,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=544, PETRI_TRANSITIONS=552} [2024-10-31 22:16:54,573 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -33 predicate places. [2024-10-31 22:16:54,573 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 552 transitions, 1114 flow [2024-10-31 22:16:54,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:54,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:54,575 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:54,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:16:54,576 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:54,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:54,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1769071424, now seen corresponding path program 1 times [2024-10-31 22:16:54,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:54,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80055892] [2024-10-31 22:16:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:54,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:54,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:54,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80055892] [2024-10-31 22:16:54,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80055892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:54,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:54,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:54,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047393969] [2024-10-31 22:16:54,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:54,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:54,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:54,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:54,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:54,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 625 [2024-10-31 22:16:54,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 552 transitions, 1114 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:54,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:54,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 625 [2024-10-31 22:16:54,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:54,863 INFO L124 PetriNetUnfolderBase]: 26/629 cut-off events. [2024-10-31 22:16:54,863 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:16:54,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 629 events. 26/629 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1691 event pairs, 7 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 617. Up to 27 conditions per place. [2024-10-31 22:16:54,872 INFO L140 encePairwiseOnDemand]: 622/625 looper letters, 13 selfloop transitions, 2 changer transitions 0/551 dead transitions. [2024-10-31 22:16:54,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 551 transitions, 1142 flow [2024-10-31 22:16:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:54,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1792 transitions. [2024-10-31 22:16:54,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9557333333333333 [2024-10-31 22:16:54,878 INFO L175 Difference]: Start difference. First operand has 544 places, 552 transitions, 1114 flow. Second operand 3 states and 1792 transitions. [2024-10-31 22:16:54,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 551 transitions, 1142 flow [2024-10-31 22:16:54,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 551 transitions, 1141 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:16:54,891 INFO L231 Difference]: Finished difference. Result has 544 places, 551 transitions, 1115 flow [2024-10-31 22:16:54,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1115, PETRI_PLACES=544, PETRI_TRANSITIONS=551} [2024-10-31 22:16:54,894 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -33 predicate places. [2024-10-31 22:16:54,895 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 551 transitions, 1115 flow [2024-10-31 22:16:54,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:54,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:54,897 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:54,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:16:54,898 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:54,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:54,899 INFO L85 PathProgramCache]: Analyzing trace with hash 553067102, now seen corresponding path program 1 times [2024-10-31 22:16:54,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:54,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617595661] [2024-10-31 22:16:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:54,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:54,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:54,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617595661] [2024-10-31 22:16:54,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617595661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:54,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:54,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:54,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149550854] [2024-10-31 22:16:54,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:54,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:54,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:54,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:54,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:55,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 625 [2024-10-31 22:16:55,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 551 transitions, 1115 flow. Second operand has 3 states, 3 states have (on average 576.0) internal successors, (1728), 3 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:55,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:55,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 625 [2024-10-31 22:16:55,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:55,217 INFO L124 PetriNetUnfolderBase]: 44/682 cut-off events. [2024-10-31 22:16:55,217 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:16:55,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 682 events. 44/682 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2075 event pairs, 2 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 737. Up to 63 conditions per place. [2024-10-31 22:16:55,225 INFO L140 encePairwiseOnDemand]: 614/625 looper letters, 25 selfloop transitions, 2 changer transitions 0/544 dead transitions. [2024-10-31 22:16:55,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 544 transitions, 1157 flow [2024-10-31 22:16:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1761 transitions. [2024-10-31 22:16:55,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9392 [2024-10-31 22:16:55,231 INFO L175 Difference]: Start difference. First operand has 544 places, 551 transitions, 1115 flow. Second operand 3 states and 1761 transitions. [2024-10-31 22:16:55,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 544 transitions, 1157 flow [2024-10-31 22:16:55,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 544 transitions, 1153 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:55,244 INFO L231 Difference]: Finished difference. Result has 535 places, 542 transitions, 1097 flow [2024-10-31 22:16:55,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1097, PETRI_PLACES=535, PETRI_TRANSITIONS=542} [2024-10-31 22:16:55,246 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -42 predicate places. [2024-10-31 22:16:55,246 INFO L471 AbstractCegarLoop]: Abstraction has has 535 places, 542 transitions, 1097 flow [2024-10-31 22:16:55,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 576.0) internal successors, (1728), 3 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:55,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:55,250 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:55,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:16:55,250 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:55,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash -468622058, now seen corresponding path program 1 times [2024-10-31 22:16:55,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:55,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736904123] [2024-10-31 22:16:55,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:55,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:55,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:55,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:55,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736904123] [2024-10-31 22:16:55,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736904123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:55,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:55,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:55,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517432209] [2024-10-31 22:16:55,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:55,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:55,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:55,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:55,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:55,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 625 [2024-10-31 22:16:55,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 542 transitions, 1097 flow. Second operand has 3 states, 3 states have (on average 576.3333333333334) internal successors, (1729), 3 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:55,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:55,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 625 [2024-10-31 22:16:55,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:55,599 INFO L124 PetriNetUnfolderBase]: 47/735 cut-off events. [2024-10-31 22:16:55,599 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-31 22:16:55,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 735 events. 47/735 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2545 event pairs, 18 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 779. Up to 62 conditions per place. [2024-10-31 22:16:55,610 INFO L140 encePairwiseOnDemand]: 614/625 looper letters, 25 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2024-10-31 22:16:55,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 535 transitions, 1139 flow [2024-10-31 22:16:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:55,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1761 transitions. [2024-10-31 22:16:55,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9392 [2024-10-31 22:16:55,616 INFO L175 Difference]: Start difference. First operand has 535 places, 542 transitions, 1097 flow. Second operand 3 states and 1761 transitions. [2024-10-31 22:16:55,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 535 transitions, 1139 flow [2024-10-31 22:16:55,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 535 transitions, 1135 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:55,629 INFO L231 Difference]: Finished difference. Result has 526 places, 533 transitions, 1079 flow [2024-10-31 22:16:55,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1079, PETRI_PLACES=526, PETRI_TRANSITIONS=533} [2024-10-31 22:16:55,630 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -51 predicate places. [2024-10-31 22:16:55,630 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 533 transitions, 1079 flow [2024-10-31 22:16:55,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 576.3333333333334) internal successors, (1729), 3 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:55,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:55,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:55,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:16:55,633 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:55,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1272747947, now seen corresponding path program 1 times [2024-10-31 22:16:55,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:55,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556225396] [2024-10-31 22:16:55,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:55,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:55,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:55,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:55,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556225396] [2024-10-31 22:16:55,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556225396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:55,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:55,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:16:55,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672191475] [2024-10-31 22:16:55,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:55,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:55,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:55,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:55,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:55,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 595 out of 625 [2024-10-31 22:16:55,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 533 transitions, 1079 flow. Second operand has 3 states, 3 states have (on average 596.6666666666666) internal successors, (1790), 3 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:55,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:55,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 595 of 625 [2024-10-31 22:16:55,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:55,902 INFO L124 PetriNetUnfolderBase]: 38/670 cut-off events. [2024-10-31 22:16:55,902 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:16:55,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 670 events. 38/670 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1885 event pairs, 12 based on Foata normal form. 0/603 useless extension candidates. Maximal degree in co-relation 699. Up to 39 conditions per place. [2024-10-31 22:16:55,910 INFO L140 encePairwiseOnDemand]: 621/625 looper letters, 14 selfloop transitions, 3 changer transitions 0/536 dead transitions. [2024-10-31 22:16:55,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 536 transitions, 1121 flow [2024-10-31 22:16:55,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1803 transitions. [2024-10-31 22:16:55,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9616 [2024-10-31 22:16:55,916 INFO L175 Difference]: Start difference. First operand has 526 places, 533 transitions, 1079 flow. Second operand 3 states and 1803 transitions. [2024-10-31 22:16:55,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 536 transitions, 1121 flow [2024-10-31 22:16:55,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 536 transitions, 1117 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:55,929 INFO L231 Difference]: Finished difference. Result has 528 places, 534 transitions, 1093 flow [2024-10-31 22:16:55,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1093, PETRI_PLACES=528, PETRI_TRANSITIONS=534} [2024-10-31 22:16:55,931 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -49 predicate places. [2024-10-31 22:16:55,931 INFO L471 AbstractCegarLoop]: Abstraction has has 528 places, 534 transitions, 1093 flow [2024-10-31 22:16:55,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 596.6666666666666) internal successors, (1790), 3 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:55,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:55,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:55,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:16:55,933 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:55,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:55,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1913422954, now seen corresponding path program 1 times [2024-10-31 22:16:55,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:55,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526932728] [2024-10-31 22:16:55,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:55,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:56,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:56,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526932728] [2024-10-31 22:16:56,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526932728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:56,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:56,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:56,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433732419] [2024-10-31 22:16:56,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:56,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:56,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:56,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:56,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:56,053 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 575 out of 625 [2024-10-31 22:16:56,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 534 transitions, 1093 flow. Second operand has 3 states, 3 states have (on average 576.6666666666666) internal successors, (1730), 3 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:56,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:56,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 575 of 625 [2024-10-31 22:16:56,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:56,225 INFO L124 PetriNetUnfolderBase]: 44/665 cut-off events. [2024-10-31 22:16:56,225 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-31 22:16:56,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 665 events. 44/665 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2165 event pairs, 2 based on Foata normal form. 0/609 useless extension candidates. Maximal degree in co-relation 704. Up to 61 conditions per place. [2024-10-31 22:16:56,232 INFO L140 encePairwiseOnDemand]: 614/625 looper letters, 25 selfloop transitions, 2 changer transitions 0/527 dead transitions. [2024-10-31 22:16:56,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 527 transitions, 1135 flow [2024-10-31 22:16:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:56,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1761 transitions. [2024-10-31 22:16:56,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9392 [2024-10-31 22:16:56,238 INFO L175 Difference]: Start difference. First operand has 528 places, 534 transitions, 1093 flow. Second operand 3 states and 1761 transitions. [2024-10-31 22:16:56,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 527 transitions, 1135 flow [2024-10-31 22:16:56,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 527 transitions, 1129 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:56,251 INFO L231 Difference]: Finished difference. Result has 519 places, 525 transitions, 1073 flow [2024-10-31 22:16:56,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1069, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1073, PETRI_PLACES=519, PETRI_TRANSITIONS=525} [2024-10-31 22:16:56,254 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -58 predicate places. [2024-10-31 22:16:56,254 INFO L471 AbstractCegarLoop]: Abstraction has has 519 places, 525 transitions, 1073 flow [2024-10-31 22:16:56,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 576.6666666666666) internal successors, (1730), 3 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:56,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:56,256 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:56,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:16:56,256 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:56,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:56,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1167087741, now seen corresponding path program 1 times [2024-10-31 22:16:56,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:56,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623229344] [2024-10-31 22:16:56,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:56,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:56,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:56,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623229344] [2024-10-31 22:16:56,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623229344] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:56,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:56,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:56,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456068879] [2024-10-31 22:16:56,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:56,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:56,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:56,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:56,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:56,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 590 out of 625 [2024-10-31 22:16:56,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 525 transitions, 1073 flow. Second operand has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:56,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:56,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 590 of 625 [2024-10-31 22:16:56,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:56,578 INFO L124 PetriNetUnfolderBase]: 62/1077 cut-off events. [2024-10-31 22:16:56,578 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:16:56,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1077 events. 62/1077 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4740 event pairs, 2 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1136. Up to 52 conditions per place. [2024-10-31 22:16:56,591 INFO L140 encePairwiseOnDemand]: 617/625 looper letters, 20 selfloop transitions, 4 changer transitions 0/530 dead transitions. [2024-10-31 22:16:56,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 530 transitions, 1136 flow [2024-10-31 22:16:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1798 transitions. [2024-10-31 22:16:56,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9589333333333333 [2024-10-31 22:16:56,596 INFO L175 Difference]: Start difference. First operand has 519 places, 525 transitions, 1073 flow. Second operand 3 states and 1798 transitions. [2024-10-31 22:16:56,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 530 transitions, 1136 flow [2024-10-31 22:16:56,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 530 transitions, 1132 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:56,605 INFO L231 Difference]: Finished difference. Result has 516 places, 525 transitions, 1089 flow [2024-10-31 22:16:56,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1089, PETRI_PLACES=516, PETRI_TRANSITIONS=525} [2024-10-31 22:16:56,607 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -61 predicate places. [2024-10-31 22:16:56,607 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 525 transitions, 1089 flow [2024-10-31 22:16:56,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:56,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:56,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:56,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:16:56,609 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:56,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:56,610 INFO L85 PathProgramCache]: Analyzing trace with hash 152646627, now seen corresponding path program 1 times [2024-10-31 22:16:56,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:56,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011473889] [2024-10-31 22:16:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:56,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:56,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:56,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011473889] [2024-10-31 22:16:56,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011473889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:56,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:56,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:16:56,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13504219] [2024-10-31 22:16:56,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:56,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:56,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:56,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:56,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:56,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 595 out of 625 [2024-10-31 22:16:56,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 525 transitions, 1089 flow. Second operand has 3 states, 3 states have (on average 597.0) internal successors, (1791), 3 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:56,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:56,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 595 of 625 [2024-10-31 22:16:56,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:56,905 INFO L124 PetriNetUnfolderBase]: 63/919 cut-off events. [2024-10-31 22:16:56,906 INFO L125 PetriNetUnfolderBase]: For 21/49 co-relation queries the response was YES. [2024-10-31 22:16:56,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 919 events. 63/919 cut-off events. For 21/49 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3803 event pairs, 18 based on Foata normal form. 1/832 useless extension candidates. Maximal degree in co-relation 987. Up to 57 conditions per place. [2024-10-31 22:16:56,917 INFO L140 encePairwiseOnDemand]: 621/625 looper letters, 14 selfloop transitions, 3 changer transitions 0/528 dead transitions. [2024-10-31 22:16:56,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 528 transitions, 1131 flow [2024-10-31 22:16:56,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:56,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1803 transitions. [2024-10-31 22:16:56,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9616 [2024-10-31 22:16:56,921 INFO L175 Difference]: Start difference. First operand has 516 places, 525 transitions, 1089 flow. Second operand 3 states and 1803 transitions. [2024-10-31 22:16:56,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 528 transitions, 1131 flow [2024-10-31 22:16:56,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 528 transitions, 1131 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:16:56,930 INFO L231 Difference]: Finished difference. Result has 520 places, 526 transitions, 1107 flow [2024-10-31 22:16:56,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1107, PETRI_PLACES=520, PETRI_TRANSITIONS=526} [2024-10-31 22:16:56,931 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -57 predicate places. [2024-10-31 22:16:56,931 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 526 transitions, 1107 flow [2024-10-31 22:16:56,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.0) internal successors, (1791), 3 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:56,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:56,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:56,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:16:56,934 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:56,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:56,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2048101838, now seen corresponding path program 1 times [2024-10-31 22:16:56,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:56,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537881282] [2024-10-31 22:16:56,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:56,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:57,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:57,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537881282] [2024-10-31 22:16:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537881282] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:57,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:57,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:57,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906994251] [2024-10-31 22:16:57,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:57,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:57,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:57,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:57,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:57,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 590 out of 625 [2024-10-31 22:16:57,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 526 transitions, 1107 flow. Second operand has 3 states, 3 states have (on average 591.6666666666666) internal successors, (1775), 3 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:57,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:57,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 590 of 625 [2024-10-31 22:16:57,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:57,424 INFO L124 PetriNetUnfolderBase]: 107/1690 cut-off events. [2024-10-31 22:16:57,424 INFO L125 PetriNetUnfolderBase]: For 21/29 co-relation queries the response was YES. [2024-10-31 22:16:57,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1920 conditions, 1690 events. 107/1690 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 9637 event pairs, 8 based on Foata normal form. 1/1548 useless extension candidates. Maximal degree in co-relation 1868. Up to 76 conditions per place. [2024-10-31 22:16:57,455 INFO L140 encePairwiseOnDemand]: 617/625 looper letters, 20 selfloop transitions, 4 changer transitions 0/531 dead transitions. [2024-10-31 22:16:57,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 531 transitions, 1170 flow [2024-10-31 22:16:57,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:57,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:57,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1798 transitions. [2024-10-31 22:16:57,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9589333333333333 [2024-10-31 22:16:57,464 INFO L175 Difference]: Start difference. First operand has 520 places, 526 transitions, 1107 flow. Second operand 3 states and 1798 transitions. [2024-10-31 22:16:57,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 531 transitions, 1170 flow [2024-10-31 22:16:57,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 531 transitions, 1164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:57,474 INFO L231 Difference]: Finished difference. Result has 517 places, 526 transitions, 1121 flow [2024-10-31 22:16:57,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1121, PETRI_PLACES=517, PETRI_TRANSITIONS=526} [2024-10-31 22:16:57,475 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -60 predicate places. [2024-10-31 22:16:57,479 INFO L471 AbstractCegarLoop]: Abstraction has has 517 places, 526 transitions, 1121 flow [2024-10-31 22:16:57,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 591.6666666666666) internal successors, (1775), 3 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:57,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:57,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:57,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:16:57,481 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:16:57,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:57,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1282534743, now seen corresponding path program 1 times [2024-10-31 22:16:57,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:57,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604503672] [2024-10-31 22:16:57,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:57,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:57,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:57,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:57,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604503672] [2024-10-31 22:16:57,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604503672] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:57,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:57,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:16:57,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332276559] [2024-10-31 22:16:57,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:57,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:16:57,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:57,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:16:57,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:16:59,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 625 [2024-10-31 22:16:59,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 526 transitions, 1121 flow. Second operand has 8 states, 8 states have (on average 568.125) internal successors, (4545), 8 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:59,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:59,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 625 [2024-10-31 22:16:59,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:59,939 INFO L124 PetriNetUnfolderBase]: 161/2336 cut-off events. [2024-10-31 22:16:59,939 INFO L125 PetriNetUnfolderBase]: For 14/58 co-relation queries the response was YES. [2024-10-31 22:16:59,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2851 conditions, 2336 events. 161/2336 cut-off events. For 14/58 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 14606 event pairs, 14 based on Foata normal form. 7/2180 useless extension candidates. Maximal degree in co-relation 2796. Up to 115 conditions per place. [2024-10-31 22:16:59,977 INFO L140 encePairwiseOnDemand]: 608/625 looper letters, 79 selfloop transitions, 19 changer transitions 0/578 dead transitions. [2024-10-31 22:16:59,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 578 transitions, 1452 flow [2024-10-31 22:16:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:16:59,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:16:59,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 6866 transitions. [2024-10-31 22:16:59,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9154666666666667 [2024-10-31 22:16:59,993 INFO L175 Difference]: Start difference. First operand has 517 places, 526 transitions, 1121 flow. Second operand 12 states and 6866 transitions. [2024-10-31 22:16:59,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 578 transitions, 1452 flow [2024-10-31 22:16:59,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 578 transitions, 1452 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:00,004 INFO L231 Difference]: Finished difference. Result has 533 places, 537 transitions, 1228 flow [2024-10-31 22:17:00,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1228, PETRI_PLACES=533, PETRI_TRANSITIONS=537} [2024-10-31 22:17:00,006 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -44 predicate places. [2024-10-31 22:17:00,006 INFO L471 AbstractCegarLoop]: Abstraction has has 533 places, 537 transitions, 1228 flow [2024-10-31 22:17:00,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 568.125) internal successors, (4545), 8 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:00,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:00,009 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:00,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:17:00,009 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:17:00,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:00,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1974661260, now seen corresponding path program 1 times [2024-10-31 22:17:00,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:00,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186083306] [2024-10-31 22:17:00,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:00,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:00,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:00,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186083306] [2024-10-31 22:17:00,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186083306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:00,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:00,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:17:00,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843082128] [2024-10-31 22:17:00,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:00,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:17:00,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:00,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:17:00,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:17:01,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 625 [2024-10-31 22:17:01,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 537 transitions, 1228 flow. Second operand has 8 states, 8 states have (on average 568.25) internal successors, (4546), 8 states have internal predecessors, (4546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:01,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:01,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 625 [2024-10-31 22:17:01,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:02,845 INFO L124 PetriNetUnfolderBase]: 396/5290 cut-off events. [2024-10-31 22:17:02,845 INFO L125 PetriNetUnfolderBase]: For 214/302 co-relation queries the response was YES. [2024-10-31 22:17:02,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6466 conditions, 5290 events. 396/5290 cut-off events. For 214/302 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 47127 event pairs, 62 based on Foata normal form. 14/4853 useless extension candidates. Maximal degree in co-relation 6400. Up to 201 conditions per place. [2024-10-31 22:17:02,928 INFO L140 encePairwiseOnDemand]: 608/625 looper letters, 74 selfloop transitions, 19 changer transitions 0/579 dead transitions. [2024-10-31 22:17:02,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 579 transitions, 1528 flow [2024-10-31 22:17:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:17:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:17:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 6856 transitions. [2024-10-31 22:17:02,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9141333333333334 [2024-10-31 22:17:02,944 INFO L175 Difference]: Start difference. First operand has 533 places, 537 transitions, 1228 flow. Second operand 12 states and 6856 transitions. [2024-10-31 22:17:02,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 579 transitions, 1528 flow [2024-10-31 22:17:02,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 579 transitions, 1528 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:02,958 INFO L231 Difference]: Finished difference. Result has 549 places, 548 transitions, 1335 flow [2024-10-31 22:17:02,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1335, PETRI_PLACES=549, PETRI_TRANSITIONS=548} [2024-10-31 22:17:02,959 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -28 predicate places. [2024-10-31 22:17:02,960 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 548 transitions, 1335 flow [2024-10-31 22:17:02,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 568.25) internal successors, (4546), 8 states have internal predecessors, (4546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:02,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:02,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:02,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:17:02,962 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:17:02,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:02,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1349613047, now seen corresponding path program 1 times [2024-10-31 22:17:02,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:02,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193614086] [2024-10-31 22:17:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:02,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:03,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:03,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:03,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193614086] [2024-10-31 22:17:03,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193614086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:03,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:03,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:17:03,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131714414] [2024-10-31 22:17:03,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:03,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:17:03,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:03,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:17:03,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:17:03,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 595 out of 625 [2024-10-31 22:17:03,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 548 transitions, 1335 flow. Second operand has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:03,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:03,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 595 of 625 [2024-10-31 22:17:03,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:04,047 INFO L124 PetriNetUnfolderBase]: 618/5400 cut-off events. [2024-10-31 22:17:04,047 INFO L125 PetriNetUnfolderBase]: For 453/585 co-relation queries the response was YES. [2024-10-31 22:17:04,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6776 conditions, 5400 events. 618/5400 cut-off events. For 453/585 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 48379 event pairs, 209 based on Foata normal form. 0/4816 useless extension candidates. Maximal degree in co-relation 6702. Up to 631 conditions per place. [2024-10-31 22:17:04,099 INFO L140 encePairwiseOnDemand]: 621/625 looper letters, 14 selfloop transitions, 3 changer transitions 0/551 dead transitions. [2024-10-31 22:17:04,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 551 transitions, 1377 flow [2024-10-31 22:17:04,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:17:04,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:17:04,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1803 transitions. [2024-10-31 22:17:04,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9616 [2024-10-31 22:17:04,103 INFO L175 Difference]: Start difference. First operand has 549 places, 548 transitions, 1335 flow. Second operand 3 states and 1803 transitions. [2024-10-31 22:17:04,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 551 transitions, 1377 flow [2024-10-31 22:17:04,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 551 transitions, 1377 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:17:04,114 INFO L231 Difference]: Finished difference. Result has 553 places, 549 transitions, 1353 flow [2024-10-31 22:17:04,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1335, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1353, PETRI_PLACES=553, PETRI_TRANSITIONS=549} [2024-10-31 22:17:04,115 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -24 predicate places. [2024-10-31 22:17:04,115 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 549 transitions, 1353 flow [2024-10-31 22:17:04,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:04,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:04,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:04,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-31 22:17:04,117 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:17:04,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:04,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1645222537, now seen corresponding path program 1 times [2024-10-31 22:17:04,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:04,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465564012] [2024-10-31 22:17:04,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:04,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:17:04,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:04,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465564012] [2024-10-31 22:17:04,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465564012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:04,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:04,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:17:04,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860374914] [2024-10-31 22:17:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:04,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:17:04,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:04,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:17:04,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:17:05,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 625 [2024-10-31 22:17:05,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 549 transitions, 1353 flow. Second operand has 8 states, 8 states have (on average 568.375) internal successors, (4547), 8 states have internal predecessors, (4547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:05,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:05,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 625 [2024-10-31 22:17:05,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:06,690 INFO L124 PetriNetUnfolderBase]: 663/7300 cut-off events. [2024-10-31 22:17:06,691 INFO L125 PetriNetUnfolderBase]: For 637/745 co-relation queries the response was YES. [2024-10-31 22:17:06,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9268 conditions, 7300 events. 663/7300 cut-off events. For 637/745 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 72732 event pairs, 135 based on Foata normal form. 9/6617 useless extension candidates. Maximal degree in co-relation 9189. Up to 372 conditions per place. [2024-10-31 22:17:06,916 INFO L140 encePairwiseOnDemand]: 608/625 looper letters, 86 selfloop transitions, 22 changer transitions 0/601 dead transitions. [2024-10-31 22:17:06,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 601 transitions, 1748 flow [2024-10-31 22:17:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:17:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-31 22:17:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 7431 transitions. [2024-10-31 22:17:06,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9145846153846153 [2024-10-31 22:17:06,929 INFO L175 Difference]: Start difference. First operand has 553 places, 549 transitions, 1353 flow. Second operand 13 states and 7431 transitions. [2024-10-31 22:17:06,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 601 transitions, 1748 flow [2024-10-31 22:17:06,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 601 transitions, 1732 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:17:06,945 INFO L231 Difference]: Finished difference. Result has 566 places, 556 transitions, 1439 flow [2024-10-31 22:17:06,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1347, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1439, PETRI_PLACES=566, PETRI_TRANSITIONS=556} [2024-10-31 22:17:06,946 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -11 predicate places. [2024-10-31 22:17:06,947 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 556 transitions, 1439 flow [2024-10-31 22:17:06,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 568.375) internal successors, (4547), 8 states have internal predecessors, (4547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:06,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:06,949 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:06,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-31 22:17:06,949 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:17:06,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:06,950 INFO L85 PathProgramCache]: Analyzing trace with hash -959702866, now seen corresponding path program 1 times [2024-10-31 22:17:06,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:06,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737447448] [2024-10-31 22:17:06,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:06,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:17:07,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:07,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737447448] [2024-10-31 22:17:07,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737447448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:07,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:07,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:17:07,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894217093] [2024-10-31 22:17:07,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:07,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:17:07,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:07,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:17:07,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:17:07,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 564 out of 625 [2024-10-31 22:17:08,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 556 transitions, 1439 flow. Second operand has 8 states, 8 states have (on average 568.25) internal successors, (4546), 8 states have internal predecessors, (4546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:08,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:17:08,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 564 of 625 [2024-10-31 22:17:08,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:17:09,687 INFO L124 PetriNetUnfolderBase]: 284/5297 cut-off events. [2024-10-31 22:17:09,687 INFO L125 PetriNetUnfolderBase]: For 242/371 co-relation queries the response was YES. [2024-10-31 22:17:09,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6597 conditions, 5297 events. 284/5297 cut-off events. For 242/371 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 42447 event pairs, 37 based on Foata normal form. 13/4948 useless extension candidates. Maximal degree in co-relation 6510. Up to 193 conditions per place. [2024-10-31 22:17:09,735 INFO L140 encePairwiseOnDemand]: 608/625 looper letters, 79 selfloop transitions, 24 changer transitions 0/597 dead transitions. [2024-10-31 22:17:09,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 597 transitions, 1789 flow [2024-10-31 22:17:09,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:17:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:17:09,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 6859 transitions. [2024-10-31 22:17:09,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9145333333333333 [2024-10-31 22:17:09,752 INFO L175 Difference]: Start difference. First operand has 566 places, 556 transitions, 1439 flow. Second operand 12 states and 6859 transitions. [2024-10-31 22:17:09,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 597 transitions, 1789 flow [2024-10-31 22:17:09,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 597 transitions, 1772 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:17:09,769 INFO L231 Difference]: Finished difference. Result has 574 places, 563 transitions, 1545 flow [2024-10-31 22:17:09,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1422, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1545, PETRI_PLACES=574, PETRI_TRANSITIONS=563} [2024-10-31 22:17:09,771 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -3 predicate places. [2024-10-31 22:17:09,771 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 563 transitions, 1545 flow [2024-10-31 22:17:09,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 568.25) internal successors, (4546), 8 states have internal predecessors, (4546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:17:09,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:17:09,774 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:09,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-31 22:17:09,774 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2024-10-31 22:17:09,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:09,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1473674557, now seen corresponding path program 1 times [2024-10-31 22:17:09,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:09,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758210688] [2024-10-31 22:17:09,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:09,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:17:10,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:10,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758210688] [2024-10-31 22:17:10,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758210688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:10,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:10,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:17:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458719688] [2024-10-31 22:17:10,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:10,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:17:10,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:10,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:17:10,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56