./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:04:54,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:04:54,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:04:54,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:04:54,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:04:54,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:04:54,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:04:54,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:04:54,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:04:54,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:04:54,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:04:54,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:04:54,768 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:04:54,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:04:54,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:04:54,770 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:04:54,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:04:54,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:04:54,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:04:54,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:04:54,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:04:54,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:04:54,774 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:04:54,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:04:54,775 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:04:54,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:04:54,776 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:04:54,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:04:54,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:04:54,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:04:54,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:04:54,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:04:54,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:04:54,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:04:54,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:04:54,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:04:54,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:04:54,780 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:04:54,781 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:04:54,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:04:54,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:04:54,782 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_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2023-11-21 22:04:55,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:04:55,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:04:55,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:04:55,107 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:04:55,108 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:04:55,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-11-21 22:04:58,098 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:04:58,545 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:04:58,545 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-11-21 22:04:58,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/data/f5e109900/0ad84ada78b64490bc220f8ee5e044dd/FLAG56ca5e166 [2023-11-21 22:04:58,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/data/f5e109900/0ad84ada78b64490bc220f8ee5e044dd [2023-11-21 22:04:58,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:04:58,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:04:58,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:04:58,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:04:58,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:04:58,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:04:58" (1/1) ... [2023-11-21 22:04:58,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e2bc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:58, skipping insertion in model container [2023-11-21 22:04:58,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:04:58" (1/1) ... [2023-11-21 22:04:58,780 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:04:59,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:04:59,434 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:04:59,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:04:59,601 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:04:59,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59 WrapperNode [2023-11-21 22:04:59,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:04:59,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:04:59,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:04:59,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:04:59,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,704 INFO L138 Inliner]: procedures = 366, calls = 16, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 98 [2023-11-21 22:04:59,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:04:59,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:04:59,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:04:59,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:04:59,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:04:59,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:04:59,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:04:59,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:04:59,787 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (1/1) ... [2023-11-21 22:04:59,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:04:59,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:04:59,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:04:59,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8936cdd3-e8fc-4ddc-9815-2b939d5d8ba8/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:04:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:04:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:04:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:04:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:04:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:04:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:04:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:04:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-21 22:04:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-21 22:04:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:04:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:04:59,883 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:05:00,074 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:05:00,077 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:05:00,408 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:05:00,439 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:05:00,443 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:05:00,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:00 BoogieIcfgContainer [2023-11-21 22:05:00,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:05:00,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:05:00,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:05:00,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:05:00,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:04:58" (1/3) ... [2023-11-21 22:05:00,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12af119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:00, skipping insertion in model container [2023-11-21 22:05:00,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:04:59" (2/3) ... [2023-11-21 22:05:00,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12af119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:00, skipping insertion in model container [2023-11-21 22:05:00,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:00" (3/3) ... [2023-11-21 22:05:00,459 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2023-11-21 22:05:00,469 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:05:00,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:05:00,482 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-21 22:05:00,482 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:05:00,641 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:05:00,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 113 transitions, 230 flow [2023-11-21 22:05:00,739 INFO L124 PetriNetUnfolderBase]: 0/112 cut-off events. [2023-11-21 22:05:00,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:05:00,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 112 events. 0/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 84 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-21 22:05:00,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 113 transitions, 230 flow [2023-11-21 22:05:00,752 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 112 transitions, 227 flow [2023-11-21 22:05:00,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:05:00,783 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76921957, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:05:00,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-21 22:05:00,787 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:05:00,788 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-21 22:05:00,788 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:05:00,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:00,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:00,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:00,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:00,797 INFO L85 PathProgramCache]: Analyzing trace with hash -945458727, now seen corresponding path program 1 times [2023-11-21 22:05:00,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:00,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995778225] [2023-11-21 22:05:00,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:00,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:01,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:01,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995778225] [2023-11-21 22:05:01,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995778225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:01,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:01,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:05:01,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925038400] [2023-11-21 22:05:01,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:01,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:01,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:01,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:01,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:01,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 113 [2023-11-21 22:05:01,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 112 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:01,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 113 [2023-11-21 22:05:01,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:01,272 INFO L124 PetriNetUnfolderBase]: 12/259 cut-off events. [2023-11-21 22:05:01,274 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:05:01,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 259 events. 12/259 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 713 event pairs, 12 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 254. Up to 37 conditions per place. [2023-11-21 22:05:01,285 INFO L140 encePairwiseOnDemand]: 110/113 looper letters, 12 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2023-11-21 22:05:01,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 111 transitions, 253 flow [2023-11-21 22:05:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:05:01,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:05:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2023-11-21 22:05:01,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.911504424778761 [2023-11-21 22:05:01,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2023-11-21 22:05:01,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2023-11-21 22:05:01,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:01,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2023-11-21 22:05:01,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,337 INFO L175 Difference]: Start difference. First operand has 116 places, 112 transitions, 227 flow. Second operand 3 states and 309 transitions. [2023-11-21 22:05:01,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 111 transitions, 253 flow [2023-11-21 22:05:01,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:05:01,352 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 228 flow [2023-11-21 22:05:01,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2023-11-21 22:05:01,358 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 0 predicate places. [2023-11-21 22:05:01,359 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 228 flow [2023-11-21 22:05:01,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:01,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:01,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:05:01,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:01,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:01,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1310225275, now seen corresponding path program 1 times [2023-11-21 22:05:01,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:01,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192861980] [2023-11-21 22:05:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:01,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:01,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:01,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:01,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192861980] [2023-11-21 22:05:01,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192861980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:01,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:01,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:05:01,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93579911] [2023-11-21 22:05:01,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:01,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:01,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:01,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:01,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 113 [2023-11-21 22:05:01,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:01,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 113 [2023-11-21 22:05:01,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:01,549 INFO L124 PetriNetUnfolderBase]: 16/301 cut-off events. [2023-11-21 22:05:01,550 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:05:01,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 301 events. 16/301 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1049 event pairs, 16 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 333. Up to 43 conditions per place. [2023-11-21 22:05:01,558 INFO L140 encePairwiseOnDemand]: 109/113 looper letters, 11 selfloop transitions, 1 changer transitions 0/108 dead transitions. [2023-11-21 22:05:01,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 108 transitions, 246 flow [2023-11-21 22:05:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:05:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:05:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2023-11-21 22:05:01,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.911504424778761 [2023-11-21 22:05:01,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2023-11-21 22:05:01,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2023-11-21 22:05:01,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:01,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2023-11-21 22:05:01,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,572 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 228 flow. Second operand 3 states and 309 transitions. [2023-11-21 22:05:01,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 108 transitions, 246 flow [2023-11-21 22:05:01,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 108 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:05:01,580 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 220 flow [2023-11-21 22:05:01,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2023-11-21 22:05:01,584 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, -3 predicate places. [2023-11-21 22:05:01,585 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 220 flow [2023-11-21 22:05:01,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:01,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:01,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:01,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:05:01,588 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:01,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:01,596 INFO L85 PathProgramCache]: Analyzing trace with hash 475359232, now seen corresponding path program 1 times [2023-11-21 22:05:01,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:01,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206663409] [2023-11-21 22:05:01,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:01,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:02,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:02,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:02,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206663409] [2023-11-21 22:05:02,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206663409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:02,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:02,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:05:02,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707522220] [2023-11-21 22:05:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:02,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:05:02,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:05:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:05:02,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2023-11-21 22:05:02,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:02,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:02,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2023-11-21 22:05:02,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:02,600 INFO L124 PetriNetUnfolderBase]: 100/566 cut-off events. [2023-11-21 22:05:02,600 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:05:02,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 566 events. 100/566 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3021 event pairs, 100 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 785. Up to 227 conditions per place. [2023-11-21 22:05:02,605 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 26 selfloop transitions, 5 changer transitions 0/107 dead transitions. [2023-11-21 22:05:02,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 107 transitions, 280 flow [2023-11-21 22:05:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:05:02,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:05:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 518 transitions. [2023-11-21 22:05:02,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7640117994100295 [2023-11-21 22:05:02,610 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 518 transitions. [2023-11-21 22:05:02,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 518 transitions. [2023-11-21 22:05:02,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:02,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 518 transitions. [2023-11-21 22:05:02,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.33333333333333) internal successors, (518), 6 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:02,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:02,616 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:02,617 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 220 flow. Second operand 6 states and 518 transitions. [2023-11-21 22:05:02,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 107 transitions, 280 flow [2023-11-21 22:05:02,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 107 transitions, 279 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:05:02,624 INFO L231 Difference]: Finished difference. Result has 116 places, 107 transitions, 227 flow [2023-11-21 22:05:02,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=227, PETRI_PLACES=116, PETRI_TRANSITIONS=107} [2023-11-21 22:05:02,626 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 0 predicate places. [2023-11-21 22:05:02,627 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 107 transitions, 227 flow [2023-11-21 22:05:02,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:02,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:02,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:02,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:05:02,630 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:02,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:02,630 INFO L85 PathProgramCache]: Analyzing trace with hash -360329507, now seen corresponding path program 1 times [2023-11-21 22:05:02,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:02,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119893512] [2023-11-21 22:05:02,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:02,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:03,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:03,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:03,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119893512] [2023-11-21 22:05:03,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119893512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:03,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:03,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:05:03,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385453299] [2023-11-21 22:05:03,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:03,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:05:03,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:03,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:05:03,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:05:03,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 113 [2023-11-21 22:05:03,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 107 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:03,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:03,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 113 [2023-11-21 22:05:03,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:03,701 INFO L124 PetriNetUnfolderBase]: 114/605 cut-off events. [2023-11-21 22:05:03,702 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:05:03,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 605 events. 114/605 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3360 event pairs, 61 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 858. Up to 211 conditions per place. [2023-11-21 22:05:03,707 INFO L140 encePairwiseOnDemand]: 102/113 looper letters, 34 selfloop transitions, 22 changer transitions 0/136 dead transitions. [2023-11-21 22:05:03,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 136 transitions, 397 flow [2023-11-21 22:05:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:05:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:05:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2023-11-21 22:05:03,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8451327433628318 [2023-11-21 22:05:03,711 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 573 transitions. [2023-11-21 22:05:03,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 573 transitions. [2023-11-21 22:05:03,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:03,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 573 transitions. [2023-11-21 22:05:03,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:03,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:03,718 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:03,718 INFO L175 Difference]: Start difference. First operand has 116 places, 107 transitions, 227 flow. Second operand 6 states and 573 transitions. [2023-11-21 22:05:03,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 136 transitions, 397 flow [2023-11-21 22:05:03,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 136 transitions, 387 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:05:03,723 INFO L231 Difference]: Finished difference. Result has 121 places, 128 transitions, 367 flow [2023-11-21 22:05:03,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=367, PETRI_PLACES=121, PETRI_TRANSITIONS=128} [2023-11-21 22:05:03,724 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 5 predicate places. [2023-11-21 22:05:03,725 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 128 transitions, 367 flow [2023-11-21 22:05:03,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:03,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:03,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:03,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:05:03,726 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:03,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:03,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1875498098, now seen corresponding path program 1 times [2023-11-21 22:05:03,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:03,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849015645] [2023-11-21 22:05:03,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:03,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:04,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:04,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849015645] [2023-11-21 22:05:04,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849015645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:04,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:04,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:05:04,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372634218] [2023-11-21 22:05:04,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:04,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:05:04,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:04,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:05:04,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:05:04,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 113 [2023-11-21 22:05:04,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 128 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:04,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:04,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 113 [2023-11-21 22:05:04,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:04,531 INFO L124 PetriNetUnfolderBase]: 152/704 cut-off events. [2023-11-21 22:05:04,531 INFO L125 PetriNetUnfolderBase]: For 133/153 co-relation queries the response was YES. [2023-11-21 22:05:04,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1227 conditions, 704 events. 152/704 cut-off events. For 133/153 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4153 event pairs, 61 based on Foata normal form. 5/679 useless extension candidates. Maximal degree in co-relation 1205. Up to 268 conditions per place. [2023-11-21 22:05:04,540 INFO L140 encePairwiseOnDemand]: 102/113 looper letters, 47 selfloop transitions, 26 changer transitions 0/157 dead transitions. [2023-11-21 22:05:04,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 157 transitions, 589 flow [2023-11-21 22:05:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:05:04,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:05:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2023-11-21 22:05:04,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8451327433628318 [2023-11-21 22:05:04,544 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 573 transitions. [2023-11-21 22:05:04,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 573 transitions. [2023-11-21 22:05:04,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:04,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 573 transitions. [2023-11-21 22:05:04,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:04,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:04,557 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:04,558 INFO L175 Difference]: Start difference. First operand has 121 places, 128 transitions, 367 flow. Second operand 6 states and 573 transitions. [2023-11-21 22:05:04,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 157 transitions, 589 flow [2023-11-21 22:05:04,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 157 transitions, 589 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:05:04,565 INFO L231 Difference]: Finished difference. Result has 131 places, 149 transitions, 551 flow [2023-11-21 22:05:04,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=551, PETRI_PLACES=131, PETRI_TRANSITIONS=149} [2023-11-21 22:05:04,569 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 15 predicate places. [2023-11-21 22:05:04,569 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 149 transitions, 551 flow [2023-11-21 22:05:04,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:04,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:04,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:04,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:05:04,571 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:04,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1262646302, now seen corresponding path program 1 times [2023-11-21 22:05:04,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:04,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206236580] [2023-11-21 22:05:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:04,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:04,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:04,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:04,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206236580] [2023-11-21 22:05:04,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206236580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:04,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:04,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:05:04,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324687820] [2023-11-21 22:05:04,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:04,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:05:04,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:04,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:05:04,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:05:05,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 113 [2023-11-21 22:05:05,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 149 transitions, 551 flow. Second operand has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:05,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:05,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 113 [2023-11-21 22:05:05,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:05,432 INFO L124 PetriNetUnfolderBase]: 292/1110 cut-off events. [2023-11-21 22:05:05,432 INFO L125 PetriNetUnfolderBase]: For 586/608 co-relation queries the response was YES. [2023-11-21 22:05:05,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 1110 events. 292/1110 cut-off events. For 586/608 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7185 event pairs, 101 based on Foata normal form. 9/1071 useless extension candidates. Maximal degree in co-relation 2450. Up to 532 conditions per place. [2023-11-21 22:05:05,443 INFO L140 encePairwiseOnDemand]: 98/113 looper letters, 72 selfloop transitions, 53 changer transitions 4/204 dead transitions. [2023-11-21 22:05:05,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 204 transitions, 1053 flow [2023-11-21 22:05:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:05:05,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:05:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2023-11-21 22:05:05,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8244837758112095 [2023-11-21 22:05:05,447 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2023-11-21 22:05:05,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2023-11-21 22:05:05,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:05,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2023-11-21 22:05:05,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:05,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:05,452 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:05,452 INFO L175 Difference]: Start difference. First operand has 131 places, 149 transitions, 551 flow. Second operand 6 states and 559 transitions. [2023-11-21 22:05:05,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 204 transitions, 1053 flow [2023-11-21 22:05:05,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 204 transitions, 1053 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:05:05,468 INFO L231 Difference]: Finished difference. Result has 141 places, 196 transitions, 1033 flow [2023-11-21 22:05:05,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1033, PETRI_PLACES=141, PETRI_TRANSITIONS=196} [2023-11-21 22:05:05,470 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 25 predicate places. [2023-11-21 22:05:05,470 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 196 transitions, 1033 flow [2023-11-21 22:05:05,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:05,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:05,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:05,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:05:05,471 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:05,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1644891345, now seen corresponding path program 1 times [2023-11-21 22:05:05,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:05,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905923996] [2023-11-21 22:05:05,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:05,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:05,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:05,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905923996] [2023-11-21 22:05:05,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905923996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:05,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:05,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:05:05,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614082651] [2023-11-21 22:05:05,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:05,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:05:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:05,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:05:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:05:05,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 113 [2023-11-21 22:05:05,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 196 transitions, 1033 flow. Second operand has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:05,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:05,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 113 [2023-11-21 22:05:05,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:06,343 INFO L124 PetriNetUnfolderBase]: 396/1427 cut-off events. [2023-11-21 22:05:06,343 INFO L125 PetriNetUnfolderBase]: For 1531/1572 co-relation queries the response was YES. [2023-11-21 22:05:06,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3804 conditions, 1427 events. 396/1427 cut-off events. For 1531/1572 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9753 event pairs, 107 based on Foata normal form. 4/1395 useless extension candidates. Maximal degree in co-relation 3772. Up to 677 conditions per place. [2023-11-21 22:05:06,358 INFO L140 encePairwiseOnDemand]: 98/113 looper letters, 109 selfloop transitions, 61 changer transitions 10/257 dead transitions. [2023-11-21 22:05:06,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 257 transitions, 1739 flow [2023-11-21 22:05:06,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:05:06,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:05:06,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2023-11-21 22:05:06,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8244837758112095 [2023-11-21 22:05:06,361 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2023-11-21 22:05:06,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2023-11-21 22:05:06,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:06,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2023-11-21 22:05:06,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:06,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:06,367 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:06,367 INFO L175 Difference]: Start difference. First operand has 141 places, 196 transitions, 1033 flow. Second operand 6 states and 559 transitions. [2023-11-21 22:05:06,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 257 transitions, 1739 flow [2023-11-21 22:05:06,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 257 transitions, 1675 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-11-21 22:05:06,453 INFO L231 Difference]: Finished difference. Result has 151 places, 243 transitions, 1555 flow [2023-11-21 22:05:06,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1555, PETRI_PLACES=151, PETRI_TRANSITIONS=243} [2023-11-21 22:05:06,455 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 35 predicate places. [2023-11-21 22:05:06,455 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 243 transitions, 1555 flow [2023-11-21 22:05:06,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:06,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:06,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:06,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:05:06,456 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:06,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:06,457 INFO L85 PathProgramCache]: Analyzing trace with hash -664147198, now seen corresponding path program 1 times [2023-11-21 22:05:06,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:06,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174906938] [2023-11-21 22:05:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:06,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:07,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:07,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174906938] [2023-11-21 22:05:07,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174906938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:07,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:07,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:07,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701653514] [2023-11-21 22:05:07,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:07,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:07,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:07,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:07,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:07,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:07,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 243 transitions, 1555 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:07,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:07,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:07,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:08,804 INFO L124 PetriNetUnfolderBase]: 622/2320 cut-off events. [2023-11-21 22:05:08,805 INFO L125 PetriNetUnfolderBase]: For 2846/2894 co-relation queries the response was YES. [2023-11-21 22:05:08,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6522 conditions, 2320 events. 622/2320 cut-off events. For 2846/2894 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 18652 event pairs, 38 based on Foata normal form. 6/2311 useless extension candidates. Maximal degree in co-relation 6480. Up to 368 conditions per place. [2023-11-21 22:05:08,828 INFO L140 encePairwiseOnDemand]: 97/113 looper letters, 39 selfloop transitions, 14 changer transitions 18/290 dead transitions. [2023-11-21 22:05:08,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 290 transitions, 1791 flow [2023-11-21 22:05:08,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:08,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1051 transitions. [2023-11-21 22:05:08,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8455349959774738 [2023-11-21 22:05:08,833 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1051 transitions. [2023-11-21 22:05:08,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1051 transitions. [2023-11-21 22:05:08,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:08,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1051 transitions. [2023-11-21 22:05:08,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.54545454545455) internal successors, (1051), 11 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:08,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:08,844 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:08,844 INFO L175 Difference]: Start difference. First operand has 151 places, 243 transitions, 1555 flow. Second operand 11 states and 1051 transitions. [2023-11-21 22:05:08,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 290 transitions, 1791 flow [2023-11-21 22:05:08,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 290 transitions, 1723 flow, removed 34 selfloop flow, removed 0 redundant places. [2023-11-21 22:05:08,894 INFO L231 Difference]: Finished difference. Result has 168 places, 252 transitions, 1578 flow [2023-11-21 22:05:08,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1487, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1578, PETRI_PLACES=168, PETRI_TRANSITIONS=252} [2023-11-21 22:05:08,896 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 52 predicate places. [2023-11-21 22:05:08,896 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 252 transitions, 1578 flow [2023-11-21 22:05:08,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:08,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:08,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:08,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:05:08,897 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:08,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:08,898 INFO L85 PathProgramCache]: Analyzing trace with hash 102317204, now seen corresponding path program 2 times [2023-11-21 22:05:08,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:08,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795491715] [2023-11-21 22:05:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:10,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:10,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795491715] [2023-11-21 22:05:10,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795491715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:10,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:10,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:10,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054539331] [2023-11-21 22:05:10,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:10,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:10,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:10,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:10,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:11,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:11,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 252 transitions, 1578 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:11,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:11,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:11,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:11,972 INFO L124 PetriNetUnfolderBase]: 622/2417 cut-off events. [2023-11-21 22:05:11,972 INFO L125 PetriNetUnfolderBase]: For 3229/3304 co-relation queries the response was YES. [2023-11-21 22:05:11,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7167 conditions, 2417 events. 622/2417 cut-off events. For 3229/3304 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 19645 event pairs, 41 based on Foata normal form. 13/2420 useless extension candidates. Maximal degree in co-relation 7114. Up to 366 conditions per place. [2023-11-21 22:05:11,998 INFO L140 encePairwiseOnDemand]: 98/113 looper letters, 33 selfloop transitions, 19 changer transitions 24/295 dead transitions. [2023-11-21 22:05:11,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 295 transitions, 1900 flow [2023-11-21 22:05:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:11,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:12,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1047 transitions. [2023-11-21 22:05:12,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8423169750603379 [2023-11-21 22:05:12,004 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1047 transitions. [2023-11-21 22:05:12,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1047 transitions. [2023-11-21 22:05:12,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:12,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1047 transitions. [2023-11-21 22:05:12,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.18181818181819) internal successors, (1047), 11 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:12,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:12,013 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:12,013 INFO L175 Difference]: Start difference. First operand has 168 places, 252 transitions, 1578 flow. Second operand 11 states and 1047 transitions. [2023-11-21 22:05:12,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 295 transitions, 1900 flow [2023-11-21 22:05:12,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 295 transitions, 1883 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-21 22:05:12,056 INFO L231 Difference]: Finished difference. Result has 177 places, 252 transitions, 1621 flow [2023-11-21 22:05:12,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1569, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1621, PETRI_PLACES=177, PETRI_TRANSITIONS=252} [2023-11-21 22:05:12,058 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 61 predicate places. [2023-11-21 22:05:12,058 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 252 transitions, 1621 flow [2023-11-21 22:05:12,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:12,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:12,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:12,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:05:12,059 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:12,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1324766898, now seen corresponding path program 3 times [2023-11-21 22:05:12,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:12,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535721568] [2023-11-21 22:05:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:12,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:12,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:12,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535721568] [2023-11-21 22:05:12,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535721568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:12,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:12,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:12,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226929770] [2023-11-21 22:05:12,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:12,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:12,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:12,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:12,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:13,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:13,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 252 transitions, 1621 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:13,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:13,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:13,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:14,436 INFO L124 PetriNetUnfolderBase]: 565/2179 cut-off events. [2023-11-21 22:05:14,436 INFO L125 PetriNetUnfolderBase]: For 3398/3483 co-relation queries the response was YES. [2023-11-21 22:05:14,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6778 conditions, 2179 events. 565/2179 cut-off events. For 3398/3483 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 17227 event pairs, 21 based on Foata normal form. 12/2185 useless extension candidates. Maximal degree in co-relation 6721. Up to 368 conditions per place. [2023-11-21 22:05:14,459 INFO L140 encePairwiseOnDemand]: 97/113 looper letters, 41 selfloop transitions, 15 changer transitions 16/291 dead transitions. [2023-11-21 22:05:14,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 291 transitions, 1995 flow [2023-11-21 22:05:14,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1045 transitions. [2023-11-21 22:05:14,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8407079646017699 [2023-11-21 22:05:14,464 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1045 transitions. [2023-11-21 22:05:14,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1045 transitions. [2023-11-21 22:05:14,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:14,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1045 transitions. [2023-11-21 22:05:14,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:14,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:14,475 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:14,475 INFO L175 Difference]: Start difference. First operand has 177 places, 252 transitions, 1621 flow. Second operand 11 states and 1045 transitions. [2023-11-21 22:05:14,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 291 transitions, 1995 flow [2023-11-21 22:05:14,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 291 transitions, 1903 flow, removed 9 selfloop flow, removed 9 redundant places. [2023-11-21 22:05:14,517 INFO L231 Difference]: Finished difference. Result has 182 places, 257 transitions, 1669 flow [2023-11-21 22:05:14,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1583, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1669, PETRI_PLACES=182, PETRI_TRANSITIONS=257} [2023-11-21 22:05:14,520 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 66 predicate places. [2023-11-21 22:05:14,520 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 257 transitions, 1669 flow [2023-11-21 22:05:14,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:14,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:14,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:14,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:05:14,522 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:14,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:14,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1903244266, now seen corresponding path program 4 times [2023-11-21 22:05:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:14,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694993586] [2023-11-21 22:05:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:14,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:15,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:15,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:15,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694993586] [2023-11-21 22:05:15,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694993586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:15,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:15,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:15,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843998044] [2023-11-21 22:05:15,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:15,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:15,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:15,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:15,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:16,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:16,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 257 transitions, 1669 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:16,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:16,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:16,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:17,044 INFO L124 PetriNetUnfolderBase]: 814/3015 cut-off events. [2023-11-21 22:05:17,045 INFO L125 PetriNetUnfolderBase]: For 5294/5395 co-relation queries the response was YES. [2023-11-21 22:05:17,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9543 conditions, 3015 events. 814/3015 cut-off events. For 5294/5395 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 26003 event pairs, 38 based on Foata normal form. 18/3022 useless extension candidates. Maximal degree in co-relation 9482. Up to 513 conditions per place. [2023-11-21 22:05:17,078 INFO L140 encePairwiseOnDemand]: 97/113 looper letters, 50 selfloop transitions, 19 changer transitions 4/292 dead transitions. [2023-11-21 22:05:17,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 292 transitions, 2053 flow [2023-11-21 22:05:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1034 transitions. [2023-11-21 22:05:17,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.831858407079646 [2023-11-21 22:05:17,083 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1034 transitions. [2023-11-21 22:05:17,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1034 transitions. [2023-11-21 22:05:17,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:17,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1034 transitions. [2023-11-21 22:05:17,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:17,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:17,091 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:17,091 INFO L175 Difference]: Start difference. First operand has 182 places, 257 transitions, 1669 flow. Second operand 11 states and 1034 transitions. [2023-11-21 22:05:17,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 292 transitions, 2053 flow [2023-11-21 22:05:17,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 292 transitions, 1973 flow, removed 35 selfloop flow, removed 7 redundant places. [2023-11-21 22:05:17,147 INFO L231 Difference]: Finished difference. Result has 188 places, 263 transitions, 1750 flow [2023-11-21 22:05:17,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1637, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1750, PETRI_PLACES=188, PETRI_TRANSITIONS=263} [2023-11-21 22:05:17,148 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 72 predicate places. [2023-11-21 22:05:17,149 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 263 transitions, 1750 flow [2023-11-21 22:05:17,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:17,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:17,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:17,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:05:17,150 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:17,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash 794684318, now seen corresponding path program 5 times [2023-11-21 22:05:17,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:17,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746480553] [2023-11-21 22:05:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:17,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:17,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:17,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:17,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746480553] [2023-11-21 22:05:17,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746480553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:17,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:17,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:17,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383441108] [2023-11-21 22:05:17,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:17,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:17,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:17,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:17,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:18,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:18,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 263 transitions, 1750 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:18,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:18,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:18,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:19,607 INFO L124 PetriNetUnfolderBase]: 1075/3824 cut-off events. [2023-11-21 22:05:19,607 INFO L125 PetriNetUnfolderBase]: For 6888/7028 co-relation queries the response was YES. [2023-11-21 22:05:19,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12258 conditions, 3824 events. 1075/3824 cut-off events. For 6888/7028 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 34839 event pairs, 46 based on Foata normal form. 22/3832 useless extension candidates. Maximal degree in co-relation 12196. Up to 696 conditions per place. [2023-11-21 22:05:19,658 INFO L140 encePairwiseOnDemand]: 96/113 looper letters, 49 selfloop transitions, 20 changer transitions 3/291 dead transitions. [2023-11-21 22:05:19,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 291 transitions, 2078 flow [2023-11-21 22:05:19,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:19,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1040 transitions. [2023-11-21 22:05:19,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8366854384553499 [2023-11-21 22:05:19,663 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1040 transitions. [2023-11-21 22:05:19,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1040 transitions. [2023-11-21 22:05:19,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:19,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1040 transitions. [2023-11-21 22:05:19,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 94.54545454545455) internal successors, (1040), 11 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:19,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:19,672 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:19,672 INFO L175 Difference]: Start difference. First operand has 188 places, 263 transitions, 1750 flow. Second operand 11 states and 1040 transitions. [2023-11-21 22:05:19,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 291 transitions, 2078 flow [2023-11-21 22:05:19,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 291 transitions, 2029 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-11-21 22:05:19,740 INFO L231 Difference]: Finished difference. Result has 193 places, 269 transitions, 1831 flow [2023-11-21 22:05:19,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1719, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1831, PETRI_PLACES=193, PETRI_TRANSITIONS=269} [2023-11-21 22:05:19,741 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 77 predicate places. [2023-11-21 22:05:19,742 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 269 transitions, 1831 flow [2023-11-21 22:05:19,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:19,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:19,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:19,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:05:19,743 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:19,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:19,744 INFO L85 PathProgramCache]: Analyzing trace with hash -743019848, now seen corresponding path program 6 times [2023-11-21 22:05:19,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:19,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614202266] [2023-11-21 22:05:19,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:19,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:20,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:20,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:20,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614202266] [2023-11-21 22:05:20,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614202266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:20,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:20,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:20,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272457716] [2023-11-21 22:05:20,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:20,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:20,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:20,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:20,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:21,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:21,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 269 transitions, 1831 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:21,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:21,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:21,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:22,569 INFO L124 PetriNetUnfolderBase]: 1343/4751 cut-off events. [2023-11-21 22:05:22,569 INFO L125 PetriNetUnfolderBase]: For 9536/9715 co-relation queries the response was YES. [2023-11-21 22:05:22,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15514 conditions, 4751 events. 1343/4751 cut-off events. For 9536/9715 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 45380 event pairs, 66 based on Foata normal form. 22/4754 useless extension candidates. Maximal degree in co-relation 15450. Up to 864 conditions per place. [2023-11-21 22:05:22,626 INFO L140 encePairwiseOnDemand]: 97/113 looper letters, 56 selfloop transitions, 23 changer transitions 4/302 dead transitions. [2023-11-21 22:05:22,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 302 transitions, 2246 flow [2023-11-21 22:05:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1040 transitions. [2023-11-21 22:05:22,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8366854384553499 [2023-11-21 22:05:22,631 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1040 transitions. [2023-11-21 22:05:22,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1040 transitions. [2023-11-21 22:05:22,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:22,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1040 transitions. [2023-11-21 22:05:22,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 94.54545454545455) internal successors, (1040), 11 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:22,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:22,641 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:22,641 INFO L175 Difference]: Start difference. First operand has 193 places, 269 transitions, 1831 flow. Second operand 11 states and 1040 transitions. [2023-11-21 22:05:22,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 302 transitions, 2246 flow [2023-11-21 22:05:22,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 302 transitions, 2189 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-11-21 22:05:22,734 INFO L231 Difference]: Finished difference. Result has 201 places, 276 transitions, 1953 flow [2023-11-21 22:05:22,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1795, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1953, PETRI_PLACES=201, PETRI_TRANSITIONS=276} [2023-11-21 22:05:22,735 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 85 predicate places. [2023-11-21 22:05:22,735 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 276 transitions, 1953 flow [2023-11-21 22:05:22,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:22,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:22,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:22,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:05:22,737 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:22,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:22,737 INFO L85 PathProgramCache]: Analyzing trace with hash -551935120, now seen corresponding path program 7 times [2023-11-21 22:05:22,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:22,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700112838] [2023-11-21 22:05:22,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:22,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:23,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:23,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700112838] [2023-11-21 22:05:23,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700112838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:23,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:23,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691186146] [2023-11-21 22:05:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:23,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:23,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:23,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:23,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:23,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:23,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 276 transitions, 1953 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:23,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:23,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:23,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:25,153 INFO L124 PetriNetUnfolderBase]: 1607/5620 cut-off events. [2023-11-21 22:05:25,153 INFO L125 PetriNetUnfolderBase]: For 12444/12655 co-relation queries the response was YES. [2023-11-21 22:05:25,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18610 conditions, 5620 events. 1607/5620 cut-off events. For 12444/12655 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 55799 event pairs, 73 based on Foata normal form. 30/5628 useless extension candidates. Maximal degree in co-relation 18541. Up to 1026 conditions per place. [2023-11-21 22:05:25,218 INFO L140 encePairwiseOnDemand]: 96/113 looper letters, 55 selfloop transitions, 27 changer transitions 5/306 dead transitions. [2023-11-21 22:05:25,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 306 transitions, 2390 flow [2023-11-21 22:05:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:25,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1039 transitions. [2023-11-21 22:05:25,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8358809332260659 [2023-11-21 22:05:25,223 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1039 transitions. [2023-11-21 22:05:25,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1039 transitions. [2023-11-21 22:05:25,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:25,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1039 transitions. [2023-11-21 22:05:25,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 94.45454545454545) internal successors, (1039), 11 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:25,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:25,231 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:25,231 INFO L175 Difference]: Start difference. First operand has 201 places, 276 transitions, 1953 flow. Second operand 11 states and 1039 transitions. [2023-11-21 22:05:25,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 306 transitions, 2390 flow [2023-11-21 22:05:25,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 306 transitions, 2321 flow, removed 22 selfloop flow, removed 6 redundant places. [2023-11-21 22:05:25,349 INFO L231 Difference]: Finished difference. Result has 208 places, 283 transitions, 2078 flow [2023-11-21 22:05:25,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1907, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2078, PETRI_PLACES=208, PETRI_TRANSITIONS=283} [2023-11-21 22:05:25,350 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 92 predicate places. [2023-11-21 22:05:25,351 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 283 transitions, 2078 flow [2023-11-21 22:05:25,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:25,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:25,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:25,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:05:25,352 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:25,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:25,353 INFO L85 PathProgramCache]: Analyzing trace with hash -2015277786, now seen corresponding path program 8 times [2023-11-21 22:05:25,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:25,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419647562] [2023-11-21 22:05:25,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:25,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:26,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:26,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419647562] [2023-11-21 22:05:26,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419647562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:26,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:26,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146098761] [2023-11-21 22:05:26,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:26,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:26,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:26,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:26,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:26,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:26,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 283 transitions, 2078 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:26,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:26,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:26,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:27,982 INFO L124 PetriNetUnfolderBase]: 1606/5636 cut-off events. [2023-11-21 22:05:27,983 INFO L125 PetriNetUnfolderBase]: For 13624/13845 co-relation queries the response was YES. [2023-11-21 22:05:28,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18868 conditions, 5636 events. 1606/5636 cut-off events. For 13624/13845 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 56043 event pairs, 73 based on Foata normal form. 37/5650 useless extension candidates. Maximal degree in co-relation 18796. Up to 1027 conditions per place. [2023-11-21 22:05:28,040 INFO L140 encePairwiseOnDemand]: 97/113 looper letters, 55 selfloop transitions, 29 changer transitions 5/308 dead transitions. [2023-11-21 22:05:28,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 308 transitions, 2458 flow [2023-11-21 22:05:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1043 transitions. [2023-11-21 22:05:28,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8390989541432019 [2023-11-21 22:05:28,044 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1043 transitions. [2023-11-21 22:05:28,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1043 transitions. [2023-11-21 22:05:28,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:28,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1043 transitions. [2023-11-21 22:05:28,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:28,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:28,051 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:28,052 INFO L175 Difference]: Start difference. First operand has 208 places, 283 transitions, 2078 flow. Second operand 11 states and 1043 transitions. [2023-11-21 22:05:28,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 308 transitions, 2458 flow [2023-11-21 22:05:28,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 308 transitions, 2393 flow, removed 16 selfloop flow, removed 6 redundant places. [2023-11-21 22:05:28,182 INFO L231 Difference]: Finished difference. Result has 216 places, 285 transitions, 2140 flow [2023-11-21 22:05:28,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2023, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2140, PETRI_PLACES=216, PETRI_TRANSITIONS=285} [2023-11-21 22:05:28,183 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 100 predicate places. [2023-11-21 22:05:28,184 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 285 transitions, 2140 flow [2023-11-21 22:05:28,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:28,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:28,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:28,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:05:28,202 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:28,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:28,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1551931074, now seen corresponding path program 9 times [2023-11-21 22:05:28,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:28,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859121842] [2023-11-21 22:05:28,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:28,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:28,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:28,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859121842] [2023-11-21 22:05:28,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859121842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:28,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:28,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:28,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340387140] [2023-11-21 22:05:28,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:28,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:28,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:28,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:28,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:29,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:29,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 285 transitions, 2140 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:29,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:29,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:29,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:30,426 INFO L124 PetriNetUnfolderBase]: 1605/5633 cut-off events. [2023-11-21 22:05:30,426 INFO L125 PetriNetUnfolderBase]: For 14367/14574 co-relation queries the response was YES. [2023-11-21 22:05:30,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18966 conditions, 5633 events. 1605/5633 cut-off events. For 14367/14574 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 55980 event pairs, 77 based on Foata normal form. 25/5635 useless extension candidates. Maximal degree in co-relation 18890. Up to 1039 conditions per place. [2023-11-21 22:05:30,477 INFO L140 encePairwiseOnDemand]: 96/113 looper letters, 58 selfloop transitions, 25 changer transitions 2/304 dead transitions. [2023-11-21 22:05:30,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 304 transitions, 2490 flow [2023-11-21 22:05:30,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1046 transitions. [2023-11-21 22:05:30,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8415124698310539 [2023-11-21 22:05:30,481 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1046 transitions. [2023-11-21 22:05:30,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1046 transitions. [2023-11-21 22:05:30,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:30,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1046 transitions. [2023-11-21 22:05:30,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.0909090909091) internal successors, (1046), 11 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:30,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:30,487 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:30,487 INFO L175 Difference]: Start difference. First operand has 216 places, 285 transitions, 2140 flow. Second operand 11 states and 1046 transitions. [2023-11-21 22:05:30,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 304 transitions, 2490 flow [2023-11-21 22:05:30,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 304 transitions, 2335 flow, removed 39 selfloop flow, removed 11 redundant places. [2023-11-21 22:05:30,626 INFO L231 Difference]: Finished difference. Result has 218 places, 289 transitions, 2152 flow [2023-11-21 22:05:30,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2029, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2152, PETRI_PLACES=218, PETRI_TRANSITIONS=289} [2023-11-21 22:05:30,627 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 102 predicate places. [2023-11-21 22:05:30,627 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 289 transitions, 2152 flow [2023-11-21 22:05:30,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:30,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:30,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:30,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:05:30,628 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:30,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:30,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1995808591, now seen corresponding path program 1 times [2023-11-21 22:05:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:30,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596359356] [2023-11-21 22:05:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:30,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:31,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:31,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:31,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596359356] [2023-11-21 22:05:31,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596359356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:31,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:31,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:31,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163391036] [2023-11-21 22:05:31,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:31,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:31,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:31,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:31,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:32,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:32,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 289 transitions, 2152 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:32,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:32,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:32,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:33,568 INFO L124 PetriNetUnfolderBase]: 1867/6478 cut-off events. [2023-11-21 22:05:33,569 INFO L125 PetriNetUnfolderBase]: For 16123/16353 co-relation queries the response was YES. [2023-11-21 22:05:33,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21720 conditions, 6478 events. 1867/6478 cut-off events. For 16123/16353 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 66416 event pairs, 85 based on Foata normal form. 24/6475 useless extension candidates. Maximal degree in co-relation 21645. Up to 1204 conditions per place. [2023-11-21 22:05:33,738 INFO L140 encePairwiseOnDemand]: 96/113 looper letters, 65 selfloop transitions, 27 changer transitions 3/314 dead transitions. [2023-11-21 22:05:33,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 314 transitions, 2589 flow [2023-11-21 22:05:33,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1047 transitions. [2023-11-21 22:05:33,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8423169750603379 [2023-11-21 22:05:33,742 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1047 transitions. [2023-11-21 22:05:33,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1047 transitions. [2023-11-21 22:05:33,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:33,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1047 transitions. [2023-11-21 22:05:33,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.18181818181819) internal successors, (1047), 11 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:33,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:33,749 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:33,749 INFO L175 Difference]: Start difference. First operand has 218 places, 289 transitions, 2152 flow. Second operand 11 states and 1047 transitions. [2023-11-21 22:05:33,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 314 transitions, 2589 flow [2023-11-21 22:05:33,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 314 transitions, 2509 flow, removed 24 selfloop flow, removed 6 redundant places. [2023-11-21 22:05:33,905 INFO L231 Difference]: Finished difference. Result has 225 places, 295 transitions, 2260 flow [2023-11-21 22:05:33,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2101, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2260, PETRI_PLACES=225, PETRI_TRANSITIONS=295} [2023-11-21 22:05:33,906 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 109 predicate places. [2023-11-21 22:05:33,907 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 295 transitions, 2260 flow [2023-11-21 22:05:33,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:33,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:33,907 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:33,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:05:33,908 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:33,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:33,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1786295735, now seen corresponding path program 2 times [2023-11-21 22:05:33,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:33,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944705241] [2023-11-21 22:05:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:33,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:35,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:35,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944705241] [2023-11-21 22:05:35,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944705241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:35,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:35,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:35,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113493793] [2023-11-21 22:05:35,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:35,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:35,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:35,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:35,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:35,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:35,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 295 transitions, 2260 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:35,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:35,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:35,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:37,046 INFO L124 PetriNetUnfolderBase]: 1866/6515 cut-off events. [2023-11-21 22:05:37,046 INFO L125 PetriNetUnfolderBase]: For 16494/16729 co-relation queries the response was YES. [2023-11-21 22:05:37,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21886 conditions, 6515 events. 1866/6515 cut-off events. For 16494/16729 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 66914 event pairs, 88 based on Foata normal form. 27/6515 useless extension candidates. Maximal degree in co-relation 21808. Up to 1210 conditions per place. [2023-11-21 22:05:37,102 INFO L140 encePairwiseOnDemand]: 98/113 looper letters, 62 selfloop transitions, 25 changer transitions 5/311 dead transitions. [2023-11-21 22:05:37,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 311 transitions, 2570 flow [2023-11-21 22:05:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:37,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:37,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1047 transitions. [2023-11-21 22:05:37,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8423169750603379 [2023-11-21 22:05:37,106 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1047 transitions. [2023-11-21 22:05:37,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1047 transitions. [2023-11-21 22:05:37,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:37,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1047 transitions. [2023-11-21 22:05:37,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.18181818181819) internal successors, (1047), 11 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:37,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:37,113 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:37,113 INFO L175 Difference]: Start difference. First operand has 225 places, 295 transitions, 2260 flow. Second operand 11 states and 1047 transitions. [2023-11-21 22:05:37,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 311 transitions, 2570 flow [2023-11-21 22:05:37,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 311 transitions, 2521 flow, removed 5 selfloop flow, removed 7 redundant places. [2023-11-21 22:05:37,276 INFO L231 Difference]: Finished difference. Result has 230 places, 295 transitions, 2282 flow [2023-11-21 22:05:37,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2217, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2282, PETRI_PLACES=230, PETRI_TRANSITIONS=295} [2023-11-21 22:05:37,277 INFO L281 CegarLoopForPetriNet]: 116 programPoint places, 114 predicate places. [2023-11-21 22:05:37,277 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 295 transitions, 2282 flow [2023-11-21 22:05:37,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:37,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:37,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:37,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:05:37,279 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-21 22:05:37,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:37,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1362592321, now seen corresponding path program 3 times [2023-11-21 22:05:37,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:37,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056811921] [2023-11-21 22:05:37,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:37,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:38,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:38,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056811921] [2023-11-21 22:05:38,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056811921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:38,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:38,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:05:38,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243829408] [2023-11-21 22:05:38,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:38,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:05:38,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:38,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:05:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:05:38,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2023-11-21 22:05:38,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 295 transitions, 2282 flow. Second operand has 11 states, 11 states have (on average 90.54545454545455) internal successors, (996), 11 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:38,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:38,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2023-11-21 22:05:38,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:40,257 INFO L124 PetriNetUnfolderBase]: 1603/5671 cut-off events. [2023-11-21 22:05:40,257 INFO L125 PetriNetUnfolderBase]: For 14388/14596 co-relation queries the response was YES. [2023-11-21 22:05:40,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19011 conditions, 5671 events. 1603/5671 cut-off events. For 14388/14596 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 56463 event pairs, 76 based on Foata normal form. 21/5669 useless extension candidates. Maximal degree in co-relation 18931. Up to 1045 conditions per place. [2023-11-21 22:05:40,299 INFO L140 encePairwiseOnDemand]: 99/113 looper letters, 60 selfloop transitions, 21 changer transitions 9/309 dead transitions. [2023-11-21 22:05:40,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 309 transitions, 2540 flow [2023-11-21 22:05:40,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:05:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-21 22:05:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1043 transitions. [2023-11-21 22:05:40,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8390989541432019 [2023-11-21 22:05:40,302 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1043 transitions. [2023-11-21 22:05:40,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1043 transitions. [2023-11-21 22:05:40,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:40,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1043 transitions. [2023-11-21 22:05:40,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 94.81818181818181) internal successors, (1043), 11 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:40,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:40,308 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:40,308 INFO L175 Difference]: Start difference. First operand has 230 places, 295 transitions, 2282 flow. Second operand 11 states and 1043 transitions. [2023-11-21 22:05:40,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 309 transitions, 2540 flow