./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya --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 f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:18:08,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:18:08,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 03:18:08,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:18:08,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:18:08,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:18:08,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:18:08,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:18:08,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:18:08,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:18:08,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:18:08,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:18:08,115 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:18:08,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:18:08,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:18:08,117 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:18:08,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:18:08,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:18:08,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:18:08,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:18:08,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:18:08,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:18:08,121 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 03:18:08,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:18:08,122 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:18:08,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:18:08,122 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:18:08,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:18:08,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:18:08,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:18:08,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:18:08,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:18:08,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:18:08,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:18:08,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:18:08,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:18:08,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:18:08,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:18:08,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:18:08,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:18:08,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:18:08,128 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_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a [2023-11-29 03:18:08,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:18:08,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:18:08,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:18:08,379 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:18:08,379 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:18:08,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread/queue_ok_longer.i [2023-11-29 03:18:11,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:18:11,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:18:11,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/sv-benchmarks/c/pthread/queue_ok_longer.i [2023-11-29 03:18:11,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/data/58c28c437/89f9506e32aa426696e9f055b9efe874/FLAG32f3bd079 [2023-11-29 03:18:11,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/data/58c28c437/89f9506e32aa426696e9f055b9efe874 [2023-11-29 03:18:11,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:18:11,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:18:11,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:18:11,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:18:11,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:18:11,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:18:11" (1/1) ... [2023-11-29 03:18:11,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ab2d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:11, skipping insertion in model container [2023-11-29 03:18:11,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:18:11" (1/1) ... [2023-11-29 03:18:11,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:18:11,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:18:11,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:18:11,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:18:12,040 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:18:12,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12 WrapperNode [2023-11-29 03:18:12,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:18:12,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:18:12,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:18:12,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:18:12,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,114 INFO L138 Inliner]: procedures = 275, calls = 61, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 399 [2023-11-29 03:18:12,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:18:12,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:18:12,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:18:12,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:18:12,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:18:12,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:18:12,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:18:12,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:18:12,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (1/1) ... [2023-11-29 03:18:12,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:18:12,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:12,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:18:12,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71b30be8-a4a9-4879-896f-0e3846d8d14d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:18:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-29 03:18:12,260 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-29 03:18:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-29 03:18:12,261 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-29 03:18:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:18:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:18:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 03:18:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 03:18:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 03:18:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 03:18:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:18:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 03:18:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:18:12,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:18:12,264 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 03:18:12,429 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:18:12,431 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:18:12,986 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:18:13,011 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:18:13,011 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 03:18:13,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:18:13 BoogieIcfgContainer [2023-11-29 03:18:13,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:18:13,015 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:18:13,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:18:13,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:18:13,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:18:11" (1/3) ... [2023-11-29 03:18:13,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538e7c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:18:13, skipping insertion in model container [2023-11-29 03:18:13,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:12" (2/3) ... [2023-11-29 03:18:13,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538e7c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:18:13, skipping insertion in model container [2023-11-29 03:18:13,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:18:13" (3/3) ... [2023-11-29 03:18:13,022 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2023-11-29 03:18:13,029 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 03:18:13,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:18:13,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2023-11-29 03:18:13,037 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 03:18:13,216 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 03:18:13,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 448 places, 456 transitions, 926 flow [2023-11-29 03:18:13,433 INFO L124 PetriNetUnfolderBase]: 15/454 cut-off events. [2023-11-29 03:18:13,433 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 03:18:13,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 454 events. 15/454 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 832 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 323. Up to 3 conditions per place. [2023-11-29 03:18:13,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 448 places, 456 transitions, 926 flow [2023-11-29 03:18:13,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 436 places, 444 transitions, 897 flow [2023-11-29 03:18:13,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:18:13,475 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;@4c2de40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:18:13,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-29 03:18:13,481 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 03:18:13,481 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-29 03:18:13,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:18:13,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:13,482 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] [2023-11-29 03:18:13,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:13,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:13,487 INFO L85 PathProgramCache]: Analyzing trace with hash -796067664, now seen corresponding path program 1 times [2023-11-29 03:18:13,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:13,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408129004] [2023-11-29 03:18:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:13,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:13,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:13,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408129004] [2023-11-29 03:18:13,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408129004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:13,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:13,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:18:13,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583169622] [2023-11-29 03:18:13,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:13,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:18:13,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:13,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:18:13,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:13,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 456 [2023-11-29 03:18:13,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 444 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-29 03:18:13,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:13,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 456 [2023-11-29 03:18:13,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:14,121 INFO L124 PetriNetUnfolderBase]: 40/985 cut-off events. [2023-11-29 03:18:14,121 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-29 03:18:14,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 985 events. 40/985 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4732 event pairs, 19 based on Foata normal form. 13/885 useless extension candidates. Maximal degree in co-relation 890. Up to 52 conditions per place. [2023-11-29 03:18:14,137 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2023-11-29 03:18:14,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 427 transitions, 893 flow [2023-11-29 03:18:14,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:18:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:18:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1308 transitions. [2023-11-29 03:18:14,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.956140350877193 [2023-11-29 03:18:14,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1308 transitions. [2023-11-29 03:18:14,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1308 transitions. [2023-11-29 03:18:14,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:14,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1308 transitions. [2023-11-29 03:18:14,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 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) [2023-11-29 03:18:14,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:14,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:14,186 INFO L175 Difference]: Start difference. First operand has 436 places, 444 transitions, 897 flow. Second operand 3 states and 1308 transitions. [2023-11-29 03:18:14,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 427 transitions, 893 flow [2023-11-29 03:18:14,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 427 transitions, 888 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 03:18:14,206 INFO L231 Difference]: Finished difference. Result has 424 places, 427 transitions, 862 flow [2023-11-29 03:18:14,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=424, PETRI_TRANSITIONS=427} [2023-11-29 03:18:14,213 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2023-11-29 03:18:14,213 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 427 transitions, 862 flow [2023-11-29 03:18:14,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-29 03:18:14,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:14,215 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] [2023-11-29 03:18:14,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:18:14,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:14,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1013186647, now seen corresponding path program 1 times [2023-11-29 03:18:14,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305689398] [2023-11-29 03:18:14,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:14,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:14,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:14,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305689398] [2023-11-29 03:18:14,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305689398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:14,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:14,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:18:14,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860855934] [2023-11-29 03:18:14,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:14,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:18:14,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:14,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:18:14,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:14,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 456 [2023-11-29 03:18:14,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 427 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-29 03:18:14,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:14,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 456 [2023-11-29 03:18:14,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:14,561 INFO L124 PetriNetUnfolderBase]: 43/1121 cut-off events. [2023-11-29 03:18:14,561 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 03:18:14,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 1121 events. 43/1121 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5915 event pairs, 19 based on Foata normal form. 0/997 useless extension candidates. Maximal degree in co-relation 1152. Up to 52 conditions per place. [2023-11-29 03:18:14,575 INFO L140 encePairwiseOnDemand]: 453/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2023-11-29 03:18:14,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 426 transitions, 890 flow [2023-11-29 03:18:14,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:18:14,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:18:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1303 transitions. [2023-11-29 03:18:14,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.952485380116959 [2023-11-29 03:18:14,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1303 transitions. [2023-11-29 03:18:14,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1303 transitions. [2023-11-29 03:18:14,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:14,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1303 transitions. [2023-11-29 03:18:14,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.3333333333333) internal successors, (1303), 3 states have internal predecessors, (1303), 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) [2023-11-29 03:18:14,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:14,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:14,591 INFO L175 Difference]: Start difference. First operand has 424 places, 427 transitions, 862 flow. Second operand 3 states and 1303 transitions. [2023-11-29 03:18:14,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 426 transitions, 890 flow [2023-11-29 03:18:14,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 426 transitions, 886 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:18:14,602 INFO L231 Difference]: Finished difference. Result has 423 places, 426 transitions, 860 flow [2023-11-29 03:18:14,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=423, PETRI_TRANSITIONS=426} [2023-11-29 03:18:14,604 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-29 03:18:14,605 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 426 transitions, 860 flow [2023-11-29 03:18:14,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-29 03:18:14,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:14,606 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] [2023-11-29 03:18:14,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:18:14,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:14,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:14,607 INFO L85 PathProgramCache]: Analyzing trace with hash -439365894, now seen corresponding path program 1 times [2023-11-29 03:18:14,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:14,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122496085] [2023-11-29 03:18:14,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:14,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:15,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:15,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122496085] [2023-11-29 03:18:15,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122496085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:15,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:15,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:18:15,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386951972] [2023-11-29 03:18:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:15,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:18:15,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:18:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:18:15,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-29 03:18:15,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 426 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 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) [2023-11-29 03:18:15,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:15,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-29 03:18:15,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:23,858 INFO L124 PetriNetUnfolderBase]: 18045/52322 cut-off events. [2023-11-29 03:18:23,858 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-29 03:18:23,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79475 conditions, 52322 events. 18045/52322 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573435 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79435. Up to 27065 conditions per place. [2023-11-29 03:18:24,231 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/425 dead transitions. [2023-11-29 03:18:24,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 425 transitions, 1084 flow [2023-11-29 03:18:24,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:18:24,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:18:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-29 03:18:24,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-29 03:18:24,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-29 03:18:24,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-29 03:18:24,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:24,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-29 03:18:24,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 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) [2023-11-29 03:18:24,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:24,253 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:24,253 INFO L175 Difference]: Start difference. First operand has 423 places, 426 transitions, 860 flow. Second operand 6 states and 2106 transitions. [2023-11-29 03:18:24,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 425 transitions, 1084 flow [2023-11-29 03:18:24,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 1080 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:18:24,260 INFO L231 Difference]: Finished difference. Result has 425 places, 425 transitions, 864 flow [2023-11-29 03:18:24,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=864, PETRI_PLACES=425, PETRI_TRANSITIONS=425} [2023-11-29 03:18:24,261 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -11 predicate places. [2023-11-29 03:18:24,261 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 425 transitions, 864 flow [2023-11-29 03:18:24,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 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) [2023-11-29 03:18:24,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:24,263 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] [2023-11-29 03:18:24,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:18:24,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:24,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1140905659, now seen corresponding path program 1 times [2023-11-29 03:18:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:24,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569557215] [2023-11-29 03:18:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:24,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:24,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569557215] [2023-11-29 03:18:24,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569557215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:24,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:24,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:18:24,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632811499] [2023-11-29 03:18:24,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:24,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:18:24,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:24,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:18:24,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:18:25,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-29 03:18:25,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 425 transitions, 864 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 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) [2023-11-29 03:18:25,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:25,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-29 03:18:25,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:32,920 INFO L124 PetriNetUnfolderBase]: 18045/52321 cut-off events. [2023-11-29 03:18:32,920 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-29 03:18:33,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79477 conditions, 52321 events. 18045/52321 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573314 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79421. Up to 27065 conditions per place. [2023-11-29 03:18:33,379 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/424 dead transitions. [2023-11-29 03:18:33,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 424 transitions, 1088 flow [2023-11-29 03:18:33,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:18:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:18:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-29 03:18:33,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-29 03:18:33,386 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-29 03:18:33,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-29 03:18:33,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:33,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-29 03:18:33,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 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) [2023-11-29 03:18:33,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:33,407 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:33,407 INFO L175 Difference]: Start difference. First operand has 425 places, 425 transitions, 864 flow. Second operand 6 states and 2106 transitions. [2023-11-29 03:18:33,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 424 transitions, 1088 flow [2023-11-29 03:18:33,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 424 transitions, 1078 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:18:33,419 INFO L231 Difference]: Finished difference. Result has 424 places, 424 transitions, 862 flow [2023-11-29 03:18:33,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=424, PETRI_TRANSITIONS=424} [2023-11-29 03:18:33,421 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2023-11-29 03:18:33,421 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 424 transitions, 862 flow [2023-11-29 03:18:33,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 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) [2023-11-29 03:18:33,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:33,424 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] [2023-11-29 03:18:33,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:18:33,424 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:33,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash -209609778, now seen corresponding path program 1 times [2023-11-29 03:18:33,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:33,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820248295] [2023-11-29 03:18:33,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:33,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:33,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:33,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820248295] [2023-11-29 03:18:33,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820248295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:33,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:33,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:18:33,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217283176] [2023-11-29 03:18:33,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:33,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:18:33,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:18:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:18:34,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-29 03:18:34,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 424 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 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) [2023-11-29 03:18:34,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:34,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-29 03:18:34,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:42,053 INFO L124 PetriNetUnfolderBase]: 18045/52320 cut-off events. [2023-11-29 03:18:42,053 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-29 03:18:42,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79476 conditions, 52320 events. 18045/52320 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573328 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79412. Up to 27065 conditions per place. [2023-11-29 03:18:42,304 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/423 dead transitions. [2023-11-29 03:18:42,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 423 transitions, 1086 flow [2023-11-29 03:18:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:18:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:18:42,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-29 03:18:42,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-29 03:18:42,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-29 03:18:42,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-29 03:18:42,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:42,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-29 03:18:42,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 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) [2023-11-29 03:18:42,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:42,323 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:42,323 INFO L175 Difference]: Start difference. First operand has 424 places, 424 transitions, 862 flow. Second operand 6 states and 2106 transitions. [2023-11-29 03:18:42,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 423 transitions, 1086 flow [2023-11-29 03:18:42,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 423 transitions, 1076 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:18:42,331 INFO L231 Difference]: Finished difference. Result has 423 places, 423 transitions, 860 flow [2023-11-29 03:18:42,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=860, PETRI_PLACES=423, PETRI_TRANSITIONS=423} [2023-11-29 03:18:42,333 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-29 03:18:42,333 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 423 transitions, 860 flow [2023-11-29 03:18:42,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 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) [2023-11-29 03:18:42,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:42,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:42,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:18:42,334 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:42,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:42,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1452068456, now seen corresponding path program 1 times [2023-11-29 03:18:42,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:42,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778014431] [2023-11-29 03:18:42,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:42,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:42,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:42,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778014431] [2023-11-29 03:18:42,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778014431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:42,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:42,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:18:42,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679952644] [2023-11-29 03:18:42,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:42,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:18:42,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:42,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:18:42,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:18:43,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 456 [2023-11-29 03:18:43,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 423 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 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) [2023-11-29 03:18:43,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:43,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 456 [2023-11-29 03:18:43,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:44,683 INFO L124 PetriNetUnfolderBase]: 502/4952 cut-off events. [2023-11-29 03:18:44,683 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-29 03:18:44,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5822 conditions, 4952 events. 502/4952 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 40178 event pairs, 344 based on Foata normal form. 0/4365 useless extension candidates. Maximal degree in co-relation 5740. Up to 811 conditions per place. [2023-11-29 03:18:44,715 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 54 selfloop transitions, 5 changer transitions 0/422 dead transitions. [2023-11-29 03:18:44,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 422 transitions, 976 flow [2023-11-29 03:18:44,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:18:44,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:18:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2376 transitions. [2023-11-29 03:18:44,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2023-11-29 03:18:44,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2376 transitions. [2023-11-29 03:18:44,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2376 transitions. [2023-11-29 03:18:44,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:44,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2376 transitions. [2023-11-29 03:18:44,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 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) [2023-11-29 03:18:44,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:44,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:44,735 INFO L175 Difference]: Start difference. First operand has 423 places, 423 transitions, 860 flow. Second operand 6 states and 2376 transitions. [2023-11-29 03:18:44,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 422 transitions, 976 flow [2023-11-29 03:18:44,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 422 transitions, 966 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:18:44,746 INFO L231 Difference]: Finished difference. Result has 422 places, 422 transitions, 858 flow [2023-11-29 03:18:44,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=858, PETRI_PLACES=422, PETRI_TRANSITIONS=422} [2023-11-29 03:18:44,748 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -14 predicate places. [2023-11-29 03:18:44,749 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 422 transitions, 858 flow [2023-11-29 03:18:44,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 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) [2023-11-29 03:18:44,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:44,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:44,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:18:44,751 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:44,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:44,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1867753033, now seen corresponding path program 1 times [2023-11-29 03:18:44,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:44,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651788798] [2023-11-29 03:18:44,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:44,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:45,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:45,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651788798] [2023-11-29 03:18:45,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651788798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:45,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:45,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:18:45,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522175681] [2023-11-29 03:18:45,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:45,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:18:45,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:45,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:18:45,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:18:46,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 456 [2023-11-29 03:18:46,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 422 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 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) [2023-11-29 03:18:46,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:46,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 456 [2023-11-29 03:18:46,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:46,931 INFO L124 PetriNetUnfolderBase]: 502/4951 cut-off events. [2023-11-29 03:18:46,931 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-29 03:18:46,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5821 conditions, 4951 events. 502/4951 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 40187 event pairs, 344 based on Foata normal form. 0/4365 useless extension candidates. Maximal degree in co-relation 5702. Up to 811 conditions per place. [2023-11-29 03:18:46,962 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 54 selfloop transitions, 5 changer transitions 0/421 dead transitions. [2023-11-29 03:18:46,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 421 transitions, 974 flow [2023-11-29 03:18:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:18:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:18:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2376 transitions. [2023-11-29 03:18:46,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2023-11-29 03:18:46,970 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2376 transitions. [2023-11-29 03:18:46,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2376 transitions. [2023-11-29 03:18:46,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:46,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2376 transitions. [2023-11-29 03:18:46,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 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) [2023-11-29 03:18:46,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:46,981 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:18:46,981 INFO L175 Difference]: Start difference. First operand has 422 places, 422 transitions, 858 flow. Second operand 6 states and 2376 transitions. [2023-11-29 03:18:46,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 421 transitions, 974 flow [2023-11-29 03:18:46,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 421 transitions, 964 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:18:46,991 INFO L231 Difference]: Finished difference. Result has 421 places, 421 transitions, 856 flow [2023-11-29 03:18:46,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=856, PETRI_PLACES=421, PETRI_TRANSITIONS=421} [2023-11-29 03:18:46,993 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -15 predicate places. [2023-11-29 03:18:46,993 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 421 transitions, 856 flow [2023-11-29 03:18:46,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 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) [2023-11-29 03:18:46,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:46,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:46,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:18:46,994 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:46,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:46,995 INFO L85 PathProgramCache]: Analyzing trace with hash -447143693, now seen corresponding path program 1 times [2023-11-29 03:18:46,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:46,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007400345] [2023-11-29 03:18:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:47,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:47,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007400345] [2023-11-29 03:18:47,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007400345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:47,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:47,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:18:47,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709792372] [2023-11-29 03:18:47,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:47,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:18:47,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:47,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:18:47,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:47,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 456 [2023-11-29 03:18:47,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 421 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 434.6666666666667) internal successors, (1304), 3 states have internal predecessors, (1304), 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) [2023-11-29 03:18:47,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:47,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 456 [2023-11-29 03:18:47,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:47,244 INFO L124 PetriNetUnfolderBase]: 53/1061 cut-off events. [2023-11-29 03:18:47,244 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-29 03:18:47,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 1061 events. 53/1061 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5511 event pairs, 14 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 1071. Up to 56 conditions per place. [2023-11-29 03:18:47,252 INFO L140 encePairwiseOnDemand]: 451/456 looper letters, 17 selfloop transitions, 4 changer transitions 0/429 dead transitions. [2023-11-29 03:18:47,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 429 transitions, 917 flow [2023-11-29 03:18:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:18:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:18:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1321 transitions. [2023-11-29 03:18:47,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9656432748538012 [2023-11-29 03:18:47,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1321 transitions. [2023-11-29 03:18:47,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1321 transitions. [2023-11-29 03:18:47,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:47,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1321 transitions. [2023-11-29 03:18:47,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 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) [2023-11-29 03:18:47,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:47,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:47,260 INFO L175 Difference]: Start difference. First operand has 421 places, 421 transitions, 856 flow. Second operand 3 states and 1321 transitions. [2023-11-29 03:18:47,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 429 transitions, 917 flow [2023-11-29 03:18:47,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 429 transitions, 907 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:18:47,268 INFO L231 Difference]: Finished difference. Result has 420 places, 424 transitions, 876 flow [2023-11-29 03:18:47,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=420, PETRI_TRANSITIONS=424} [2023-11-29 03:18:47,270 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -16 predicate places. [2023-11-29 03:18:47,270 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 424 transitions, 876 flow [2023-11-29 03:18:47,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.6666666666667) internal successors, (1304), 3 states have internal predecessors, (1304), 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) [2023-11-29 03:18:47,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:47,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:47,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:18:47,271 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:47,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:47,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1957841084, now seen corresponding path program 1 times [2023-11-29 03:18:47,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:47,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149978027] [2023-11-29 03:18:47,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:47,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:47,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:47,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149978027] [2023-11-29 03:18:47,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149978027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:47,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:47,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:18:47,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74346162] [2023-11-29 03:18:47,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:47,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:18:47,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:18:47,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:47,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 456 [2023-11-29 03:18:47,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 424 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 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) [2023-11-29 03:18:47,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:47,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 456 [2023-11-29 03:18:47,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:47,643 INFO L124 PetriNetUnfolderBase]: 96/2176 cut-off events. [2023-11-29 03:18:47,644 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-11-29 03:18:47,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2354 conditions, 2176 events. 96/2176 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14932 event pairs, 22 based on Foata normal form. 0/1942 useless extension candidates. Maximal degree in co-relation 2082. Up to 85 conditions per place. [2023-11-29 03:18:47,657 INFO L140 encePairwiseOnDemand]: 451/456 looper letters, 16 selfloop transitions, 4 changer transitions 0/431 dead transitions. [2023-11-29 03:18:47,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 431 transitions, 931 flow [2023-11-29 03:18:47,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:18:47,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:18:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1320 transitions. [2023-11-29 03:18:47,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9649122807017544 [2023-11-29 03:18:47,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1320 transitions. [2023-11-29 03:18:47,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1320 transitions. [2023-11-29 03:18:47,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:47,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1320 transitions. [2023-11-29 03:18:47,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.0) internal successors, (1320), 3 states have internal predecessors, (1320), 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) [2023-11-29 03:18:47,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:47,670 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:47,670 INFO L175 Difference]: Start difference. First operand has 420 places, 424 transitions, 876 flow. Second operand 3 states and 1320 transitions. [2023-11-29 03:18:47,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 431 transitions, 931 flow [2023-11-29 03:18:47,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 431 transitions, 923 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:18:47,683 INFO L231 Difference]: Finished difference. Result has 422 places, 427 transitions, 898 flow [2023-11-29 03:18:47,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=422, PETRI_TRANSITIONS=427} [2023-11-29 03:18:47,685 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -14 predicate places. [2023-11-29 03:18:47,685 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 427 transitions, 898 flow [2023-11-29 03:18:47,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 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) [2023-11-29 03:18:47,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:47,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:47,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:18:47,686 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:47,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:47,687 INFO L85 PathProgramCache]: Analyzing trace with hash -954384772, now seen corresponding path program 1 times [2023-11-29 03:18:47,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:47,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236828253] [2023-11-29 03:18:47,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:47,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:47,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:47,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236828253] [2023-11-29 03:18:47,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236828253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:47,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:47,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:18:47,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450040508] [2023-11-29 03:18:47,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:47,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:18:47,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:18:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:47,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 456 [2023-11-29 03:18:47,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 427 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 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) [2023-11-29 03:18:47,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:47,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 456 [2023-11-29 03:18:47,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:48,266 INFO L124 PetriNetUnfolderBase]: 81/2242 cut-off events. [2023-11-29 03:18:48,266 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-29 03:18:48,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2431 conditions, 2242 events. 81/2242 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 13395 event pairs, 33 based on Foata normal form. 7/2022 useless extension candidates. Maximal degree in co-relation 2041. Up to 103 conditions per place. [2023-11-29 03:18:48,282 INFO L140 encePairwiseOnDemand]: 453/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2023-11-29 03:18:48,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 431 transitions, 938 flow [2023-11-29 03:18:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:18:48,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:18:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1321 transitions. [2023-11-29 03:18:48,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9656432748538012 [2023-11-29 03:18:48,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1321 transitions. [2023-11-29 03:18:48,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1321 transitions. [2023-11-29 03:18:48,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:48,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1321 transitions. [2023-11-29 03:18:48,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 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) [2023-11-29 03:18:48,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:48,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:18:48,290 INFO L175 Difference]: Start difference. First operand has 422 places, 427 transitions, 898 flow. Second operand 3 states and 1321 transitions. [2023-11-29 03:18:48,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 431 transitions, 938 flow [2023-11-29 03:18:48,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 431 transitions, 930 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:18:48,297 INFO L231 Difference]: Finished difference. Result has 423 places, 428 transitions, 902 flow [2023-11-29 03:18:48,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=423, PETRI_TRANSITIONS=428} [2023-11-29 03:18:48,299 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-29 03:18:48,299 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 428 transitions, 902 flow [2023-11-29 03:18:48,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 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) [2023-11-29 03:18:48,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:48,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:48,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:18:48,300 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:48,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1243556329, now seen corresponding path program 1 times [2023-11-29 03:18:48,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:48,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070555293] [2023-11-29 03:18:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:48,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:48,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:48,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070555293] [2023-11-29 03:18:48,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070555293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:48,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:48,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 03:18:48,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216807427] [2023-11-29 03:18:48,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:48,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:18:48,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:48,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:18:48,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:18:49,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 456 [2023-11-29 03:18:49,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 428 transitions, 902 flow. Second operand has 12 states, 12 states have (on average 407.1666666666667) internal successors, (4886), 12 states have internal predecessors, (4886), 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) [2023-11-29 03:18:49,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:49,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 456 [2023-11-29 03:18:49,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:18:50,837 INFO L124 PetriNetUnfolderBase]: 221/4094 cut-off events. [2023-11-29 03:18:50,838 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-29 03:18:50,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4573 conditions, 4094 events. 221/4094 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 31029 event pairs, 134 based on Foata normal form. 0/3620 useless extension candidates. Maximal degree in co-relation 2734. Up to 318 conditions per place. [2023-11-29 03:18:50,867 INFO L140 encePairwiseOnDemand]: 439/456 looper letters, 22 selfloop transitions, 16 changer transitions 0/424 dead transitions. [2023-11-29 03:18:50,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 424 transitions, 970 flow [2023-11-29 03:18:50,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:18:50,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 03:18:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4899 transitions. [2023-11-29 03:18:50,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8952850877192983 [2023-11-29 03:18:50,876 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4899 transitions. [2023-11-29 03:18:50,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4899 transitions. [2023-11-29 03:18:50,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:18:50,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4899 transitions. [2023-11-29 03:18:50,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 408.25) internal successors, (4899), 12 states have internal predecessors, (4899), 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) [2023-11-29 03:18:50,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:18:50,902 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:18:50,903 INFO L175 Difference]: Start difference. First operand has 423 places, 428 transitions, 902 flow. Second operand 12 states and 4899 transitions. [2023-11-29 03:18:50,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 424 transitions, 970 flow [2023-11-29 03:18:50,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 424 transitions, 968 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:18:50,913 INFO L231 Difference]: Finished difference. Result has 430 places, 424 transitions, 924 flow [2023-11-29 03:18:50,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=924, PETRI_PLACES=430, PETRI_TRANSITIONS=424} [2023-11-29 03:18:50,915 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -6 predicate places. [2023-11-29 03:18:50,915 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 424 transitions, 924 flow [2023-11-29 03:18:50,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 407.1666666666667) internal successors, (4886), 12 states have internal predecessors, (4886), 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) [2023-11-29 03:18:50,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:18:50,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:50,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 03:18:50,918 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:18:50,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:50,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1638990207, now seen corresponding path program 1 times [2023-11-29 03:18:50,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:50,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492067093] [2023-11-29 03:18:50,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:50,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:51,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:18:51,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:51,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492067093] [2023-11-29 03:18:51,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492067093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:51,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:51,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:18:51,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444359785] [2023-11-29 03:18:51,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:51,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:18:51,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:51,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:18:51,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:18:52,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 456 [2023-11-29 03:18:52,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 424 transitions, 924 flow. Second operand has 6 states, 6 states have (on average 388.5) internal successors, (2331), 6 states have internal predecessors, (2331), 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) [2023-11-29 03:18:52,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:18:52,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 456 [2023-11-29 03:18:52,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:19:07,028 INFO L124 PetriNetUnfolderBase]: 18793/76338 cut-off events. [2023-11-29 03:19:07,028 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-29 03:19:07,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105105 conditions, 76338 events. 18793/76338 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 973047 event pairs, 5181 based on Foata normal form. 0/67686 useless extension candidates. Maximal degree in co-relation 104974. Up to 21135 conditions per place. [2023-11-29 03:19:07,437 INFO L140 encePairwiseOnDemand]: 418/456 looper letters, 75 selfloop transitions, 133 changer transitions 0/573 dead transitions. [2023-11-29 03:19:07,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 573 transitions, 1639 flow [2023-11-29 03:19:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:19:07,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:19:07,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2519 transitions. [2023-11-29 03:19:07,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9206871345029239 [2023-11-29 03:19:07,443 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2519 transitions. [2023-11-29 03:19:07,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2519 transitions. [2023-11-29 03:19:07,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:19:07,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2519 transitions. [2023-11-29 03:19:07,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.8333333333333) internal successors, (2519), 6 states have internal predecessors, (2519), 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) [2023-11-29 03:19:07,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:19:07,454 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:19:07,454 INFO L175 Difference]: Start difference. First operand has 430 places, 424 transitions, 924 flow. Second operand 6 states and 2519 transitions. [2023-11-29 03:19:07,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 573 transitions, 1639 flow [2023-11-29 03:19:07,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 573 transitions, 1607 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-11-29 03:19:07,470 INFO L231 Difference]: Finished difference. Result has 429 places, 556 transitions, 1762 flow [2023-11-29 03:19:07,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1762, PETRI_PLACES=429, PETRI_TRANSITIONS=556} [2023-11-29 03:19:07,472 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -7 predicate places. [2023-11-29 03:19:07,472 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 556 transitions, 1762 flow [2023-11-29 03:19:07,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 388.5) internal successors, (2331), 6 states have internal predecessors, (2331), 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) [2023-11-29 03:19:07,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:19:07,473 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:19:07,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 03:19:07,473 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:19:07,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:19:07,473 INFO L85 PathProgramCache]: Analyzing trace with hash -353022824, now seen corresponding path program 1 times [2023-11-29 03:19:07,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:19:07,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639100066] [2023-11-29 03:19:07,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:07,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:19:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:19:07,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:19:07,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639100066] [2023-11-29 03:19:07,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639100066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:19:07,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:19:07,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:19:07,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941744640] [2023-11-29 03:19:07,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:19:07,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:19:07,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:19:07,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:19:07,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:19:07,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 456 [2023-11-29 03:19:07,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 556 transitions, 1762 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 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) [2023-11-29 03:19:07,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:19:07,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 456 [2023-11-29 03:19:07,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:19:24,529 INFO L124 PetriNetUnfolderBase]: 21158/96727 cut-off events. [2023-11-29 03:19:24,529 INFO L125 PetriNetUnfolderBase]: For 11755/20973 co-relation queries the response was YES. [2023-11-29 03:19:24,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149542 conditions, 96727 events. 21158/96727 cut-off events. For 11755/20973 co-relation queries the response was YES. Maximal size of possible extension queue 1009. Compared 1350204 event pairs, 6220 based on Foata normal form. 26/87166 useless extension candidates. Maximal degree in co-relation 149129. Up to 24557 conditions per place. [2023-11-29 03:19:25,202 INFO L140 encePairwiseOnDemand]: 453/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/560 dead transitions. [2023-11-29 03:19:25,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 560 transitions, 1801 flow [2023-11-29 03:19:25,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:19:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:19:25,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1321 transitions. [2023-11-29 03:19:25,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9656432748538012 [2023-11-29 03:19:25,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1321 transitions. [2023-11-29 03:19:25,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1321 transitions. [2023-11-29 03:19:25,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:19:25,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1321 transitions. [2023-11-29 03:19:25,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 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) [2023-11-29 03:19:25,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:19:25,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:19:25,212 INFO L175 Difference]: Start difference. First operand has 429 places, 556 transitions, 1762 flow. Second operand 3 states and 1321 transitions. [2023-11-29 03:19:25,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 560 transitions, 1801 flow [2023-11-29 03:19:26,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 560 transitions, 1801 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:19:26,022 INFO L231 Difference]: Finished difference. Result has 432 places, 557 transitions, 1774 flow [2023-11-29 03:19:26,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1762, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1774, PETRI_PLACES=432, PETRI_TRANSITIONS=557} [2023-11-29 03:19:26,023 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -4 predicate places. [2023-11-29 03:19:26,024 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 557 transitions, 1774 flow [2023-11-29 03:19:26,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 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) [2023-11-29 03:19:26,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:19:26,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:19:26,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 03:19:26,024 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:19:26,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:19:26,025 INFO L85 PathProgramCache]: Analyzing trace with hash -698335854, now seen corresponding path program 1 times [2023-11-29 03:19:26,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:19:26,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720384678] [2023-11-29 03:19:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:26,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:19:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:19:26,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:19:26,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720384678] [2023-11-29 03:19:26,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720384678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:19:26,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:19:26,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:19:26,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559954933] [2023-11-29 03:19:26,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:19:26,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:19:26,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:19:26,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:19:26,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:19:27,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:19:27,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 557 transitions, 1774 flow. Second operand has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 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) [2023-11-29 03:19:27,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:19:27,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:19:27,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:01,779 INFO L124 PetriNetUnfolderBase]: 50860/190477 cut-off events. [2023-11-29 03:20:01,779 INFO L125 PetriNetUnfolderBase]: For 78481/144526 co-relation queries the response was YES. [2023-11-29 03:20:02,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355449 conditions, 190477 events. 50860/190477 cut-off events. For 78481/144526 co-relation queries the response was YES. Maximal size of possible extension queue 2114. Compared 2821080 event pairs, 9525 based on Foata normal form. 864/172244 useless extension candidates. Maximal degree in co-relation 354668. Up to 54491 conditions per place. [2023-11-29 03:20:03,468 INFO L140 encePairwiseOnDemand]: 423/456 looper letters, 195 selfloop transitions, 270 changer transitions 0/840 dead transitions. [2023-11-29 03:20:03,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 840 transitions, 4196 flow [2023-11-29 03:20:03,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:20:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:20:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2408 transitions. [2023-11-29 03:20:03,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8801169590643275 [2023-11-29 03:20:03,474 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2408 transitions. [2023-11-29 03:20:03,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2408 transitions. [2023-11-29 03:20:03,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:03,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2408 transitions. [2023-11-29 03:20:03,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 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) [2023-11-29 03:20:03,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:20:03,483 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:20:03,483 INFO L175 Difference]: Start difference. First operand has 432 places, 557 transitions, 1774 flow. Second operand 6 states and 2408 transitions. [2023-11-29 03:20:03,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 840 transitions, 4196 flow [2023-11-29 03:20:06,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 840 transitions, 4194 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:20:06,314 INFO L231 Difference]: Finished difference. Result has 441 places, 825 transitions, 4488 flow [2023-11-29 03:20:06,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1772, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4488, PETRI_PLACES=441, PETRI_TRANSITIONS=825} [2023-11-29 03:20:06,316 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 5 predicate places. [2023-11-29 03:20:06,316 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 825 transitions, 4488 flow [2023-11-29 03:20:06,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 379.5) internal successors, (2277), 6 states have internal predecessors, (2277), 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) [2023-11-29 03:20:06,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:20:06,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:06,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 03:20:06,317 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:20:06,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:06,317 INFO L85 PathProgramCache]: Analyzing trace with hash 322074334, now seen corresponding path program 1 times [2023-11-29 03:20:06,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:06,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168263694] [2023-11-29 03:20:06,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:06,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:20:06,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:06,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168263694] [2023-11-29 03:20:06,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168263694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:06,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:06,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:20:06,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935660421] [2023-11-29 03:20:06,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:06,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:20:06,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:06,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:20:06,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:20:06,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 456 [2023-11-29 03:20:06,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 825 transitions, 4488 flow. Second operand has 3 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 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) [2023-11-29 03:20:06,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:20:06,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 456 [2023-11-29 03:20:06,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:09,075 INFO L124 PetriNetUnfolderBase]: 1838/15364 cut-off events. [2023-11-29 03:20:09,075 INFO L125 PetriNetUnfolderBase]: For 3304/3614 co-relation queries the response was YES. [2023-11-29 03:20:09,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24404 conditions, 15364 events. 1838/15364 cut-off events. For 3304/3614 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 161505 event pairs, 61 based on Foata normal form. 4/14058 useless extension candidates. Maximal degree in co-relation 23926. Up to 2454 conditions per place. [2023-11-29 03:20:09,185 INFO L140 encePairwiseOnDemand]: 452/456 looper letters, 14 selfloop transitions, 3 changer transitions 0/555 dead transitions. [2023-11-29 03:20:09,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 555 transitions, 2023 flow [2023-11-29 03:20:09,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:20:09,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:20:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1320 transitions. [2023-11-29 03:20:09,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9649122807017544 [2023-11-29 03:20:09,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1320 transitions. [2023-11-29 03:20:09,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1320 transitions. [2023-11-29 03:20:09,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:09,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1320 transitions. [2023-11-29 03:20:09,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.0) internal successors, (1320), 3 states have internal predecessors, (1320), 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) [2023-11-29 03:20:09,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:20:09,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:20:09,196 INFO L175 Difference]: Start difference. First operand has 441 places, 825 transitions, 4488 flow. Second operand 3 states and 1320 transitions. [2023-11-29 03:20:09,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 555 transitions, 2023 flow [2023-11-29 03:20:09,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 555 transitions, 1789 flow, removed 69 selfloop flow, removed 12 redundant places. [2023-11-29 03:20:09,256 INFO L231 Difference]: Finished difference. Result has 428 places, 550 transitions, 1753 flow [2023-11-29 03:20:09,257 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1742, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1753, PETRI_PLACES=428, PETRI_TRANSITIONS=550} [2023-11-29 03:20:09,257 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -8 predicate places. [2023-11-29 03:20:09,257 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 550 transitions, 1753 flow [2023-11-29 03:20:09,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 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) [2023-11-29 03:20:09,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:20:09,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:09,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 03:20:09,258 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:20:09,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:09,258 INFO L85 PathProgramCache]: Analyzing trace with hash 826659390, now seen corresponding path program 1 times [2023-11-29 03:20:09,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:09,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942853761] [2023-11-29 03:20:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:09,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:20:09,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:09,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942853761] [2023-11-29 03:20:09,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942853761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:09,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:09,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:20:09,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126225112] [2023-11-29 03:20:09,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:09,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:20:09,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:09,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:20:09,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:20:10,290 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 456 [2023-11-29 03:20:10,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 550 transitions, 1753 flow. Second operand has 6 states, 6 states have (on average 327.8333333333333) internal successors, (1967), 6 states have internal predecessors, (1967), 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) [2023-11-29 03:20:10,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:20:10,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 456 [2023-11-29 03:20:10,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:16,658 INFO L124 PetriNetUnfolderBase]: 10929/33453 cut-off events. [2023-11-29 03:20:16,658 INFO L125 PetriNetUnfolderBase]: For 9495/9597 co-relation queries the response was YES. [2023-11-29 03:20:16,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65074 conditions, 33453 events. 10929/33453 cut-off events. For 9495/9597 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 343302 event pairs, 6818 based on Foata normal form. 0/30989 useless extension candidates. Maximal degree in co-relation 64207. Up to 18160 conditions per place. [2023-11-29 03:20:16,810 INFO L140 encePairwiseOnDemand]: 445/456 looper letters, 262 selfloop transitions, 32 changer transitions 0/589 dead transitions. [2023-11-29 03:20:16,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 589 transitions, 2497 flow [2023-11-29 03:20:16,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:20:16,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:20:16,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2090 transitions. [2023-11-29 03:20:16,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7638888888888888 [2023-11-29 03:20:16,816 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2090 transitions. [2023-11-29 03:20:16,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2090 transitions. [2023-11-29 03:20:16,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:16,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2090 transitions. [2023-11-29 03:20:16,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 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) [2023-11-29 03:20:16,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:20:16,825 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:20:16,825 INFO L175 Difference]: Start difference. First operand has 428 places, 550 transitions, 1753 flow. Second operand 6 states and 2090 transitions. [2023-11-29 03:20:16,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 589 transitions, 2497 flow [2023-11-29 03:20:16,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 589 transitions, 2491 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:20:16,932 INFO L231 Difference]: Finished difference. Result has 436 places, 577 transitions, 2031 flow [2023-11-29 03:20:16,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=1747, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2031, PETRI_PLACES=436, PETRI_TRANSITIONS=577} [2023-11-29 03:20:16,933 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 0 predicate places. [2023-11-29 03:20:16,933 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 577 transitions, 2031 flow [2023-11-29 03:20:16,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 327.8333333333333) internal successors, (1967), 6 states have internal predecessors, (1967), 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) [2023-11-29 03:20:16,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:20:16,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:16,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 03:20:16,934 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:20:16,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:16,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1637805963, now seen corresponding path program 1 times [2023-11-29 03:20:16,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:16,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404516434] [2023-11-29 03:20:16,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:16,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:20:17,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:17,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404516434] [2023-11-29 03:20:17,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404516434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:17,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:17,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:20:17,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172456870] [2023-11-29 03:20:17,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:17,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:20:17,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:20:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:20:17,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 456 [2023-11-29 03:20:17,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 577 transitions, 2031 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 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) [2023-11-29 03:20:17,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:20:17,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 456 [2023-11-29 03:20:17,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:18,970 INFO L124 PetriNetUnfolderBase]: 1741/11097 cut-off events. [2023-11-29 03:20:18,970 INFO L125 PetriNetUnfolderBase]: For 2699/3025 co-relation queries the response was YES. [2023-11-29 03:20:19,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19177 conditions, 11097 events. 1741/11097 cut-off events. For 2699/3025 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 102079 event pairs, 50 based on Foata normal form. 4/10301 useless extension candidates. Maximal degree in co-relation 18749. Up to 1976 conditions per place. [2023-11-29 03:20:19,028 INFO L140 encePairwiseOnDemand]: 452/456 looper letters, 13 selfloop transitions, 3 changer transitions 0/581 dead transitions. [2023-11-29 03:20:19,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 581 transitions, 2074 flow [2023-11-29 03:20:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:20:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:20:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1319 transitions. [2023-11-29 03:20:19,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9641812865497076 [2023-11-29 03:20:19,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1319 transitions. [2023-11-29 03:20:19,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1319 transitions. [2023-11-29 03:20:19,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:19,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1319 transitions. [2023-11-29 03:20:19,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 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) [2023-11-29 03:20:19,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:20:19,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 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) [2023-11-29 03:20:19,035 INFO L175 Difference]: Start difference. First operand has 436 places, 577 transitions, 2031 flow. Second operand 3 states and 1319 transitions. [2023-11-29 03:20:19,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 581 transitions, 2074 flow [2023-11-29 03:20:19,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 581 transitions, 2056 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-29 03:20:19,078 INFO L231 Difference]: Finished difference. Result has 438 places, 576 transitions, 2017 flow [2023-11-29 03:20:19,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2011, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2017, PETRI_PLACES=438, PETRI_TRANSITIONS=576} [2023-11-29 03:20:19,079 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 2 predicate places. [2023-11-29 03:20:19,079 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 576 transitions, 2017 flow [2023-11-29 03:20:19,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 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) [2023-11-29 03:20:19,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:20:19,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:19,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 03:20:19,080 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:20:19,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:19,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1076419005, now seen corresponding path program 1 times [2023-11-29 03:20:19,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:19,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60998191] [2023-11-29 03:20:19,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:19,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:20:19,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:19,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60998191] [2023-11-29 03:20:19,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60998191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:19,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:19,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:20:19,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393550524] [2023-11-29 03:20:19,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:19,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:20:19,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:19,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:20:19,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:20:20,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 456 [2023-11-29 03:20:20,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 576 transitions, 2017 flow. Second operand has 6 states, 6 states have (on average 397.1666666666667) internal successors, (2383), 6 states have internal predecessors, (2383), 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) [2023-11-29 03:20:20,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:20:20,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 456 [2023-11-29 03:20:20,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:23,096 INFO L124 PetriNetUnfolderBase]: 3117/15713 cut-off events. [2023-11-29 03:20:23,096 INFO L125 PetriNetUnfolderBase]: For 5685/6139 co-relation queries the response was YES. [2023-11-29 03:20:23,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28900 conditions, 15713 events. 3117/15713 cut-off events. For 5685/6139 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 152292 event pairs, 845 based on Foata normal form. 0/14558 useless extension candidates. Maximal degree in co-relation 28256. Up to 3147 conditions per place. [2023-11-29 03:20:23,195 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 157 selfloop transitions, 9 changer transitions 0/587 dead transitions. [2023-11-29 03:20:23,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 587 transitions, 2379 flow [2023-11-29 03:20:23,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:20:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:20:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2423 transitions. [2023-11-29 03:20:23,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8855994152046783 [2023-11-29 03:20:23,203 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2423 transitions. [2023-11-29 03:20:23,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2423 transitions. [2023-11-29 03:20:23,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:23,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2423 transitions. [2023-11-29 03:20:23,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 403.8333333333333) internal successors, (2423), 6 states have internal predecessors, (2423), 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) [2023-11-29 03:20:23,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:20:23,210 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:20:23,210 INFO L175 Difference]: Start difference. First operand has 438 places, 576 transitions, 2017 flow. Second operand 6 states and 2423 transitions. [2023-11-29 03:20:23,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 587 transitions, 2379 flow [2023-11-29 03:20:23,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 587 transitions, 2373 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:20:23,260 INFO L231 Difference]: Finished difference. Result has 440 places, 575 transitions, 2027 flow [2023-11-29 03:20:23,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2009, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2027, PETRI_PLACES=440, PETRI_TRANSITIONS=575} [2023-11-29 03:20:23,260 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 4 predicate places. [2023-11-29 03:20:23,261 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 575 transitions, 2027 flow [2023-11-29 03:20:23,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.1666666666667) internal successors, (2383), 6 states have internal predecessors, (2383), 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) [2023-11-29 03:20:23,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:20:23,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:23,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 03:20:23,261 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:20:23,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash -212873431, now seen corresponding path program 1 times [2023-11-29 03:20:23,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:23,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636279244] [2023-11-29 03:20:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:20:24,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:24,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636279244] [2023-11-29 03:20:24,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636279244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:24,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:24,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:20:24,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997931636] [2023-11-29 03:20:24,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:24,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:20:24,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:24,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:20:24,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:20:26,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:20:26,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 575 transitions, 2027 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:20:26,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:20:26,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:20:26,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:31,257 INFO L124 PetriNetUnfolderBase]: 5582/20726 cut-off events. [2023-11-29 03:20:31,257 INFO L125 PetriNetUnfolderBase]: For 7771/10057 co-relation queries the response was YES. [2023-11-29 03:20:31,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42528 conditions, 20726 events. 5582/20726 cut-off events. For 7771/10057 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 201232 event pairs, 1436 based on Foata normal form. 1052/20370 useless extension candidates. Maximal degree in co-relation 41832. Up to 5528 conditions per place. [2023-11-29 03:20:31,376 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 154 selfloop transitions, 151 changer transitions 0/657 dead transitions. [2023-11-29 03:20:31,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 657 transitions, 2946 flow [2023-11-29 03:20:31,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:20:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 03:20:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4400 transitions. [2023-11-29 03:20:31,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8771929824561403 [2023-11-29 03:20:31,385 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4400 transitions. [2023-11-29 03:20:31,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4400 transitions. [2023-11-29 03:20:31,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:31,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4400 transitions. [2023-11-29 03:20:31,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 400.0) internal successors, (4400), 11 states have internal predecessors, (4400), 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) [2023-11-29 03:20:31,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 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) [2023-11-29 03:20:31,395 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 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) [2023-11-29 03:20:31,395 INFO L175 Difference]: Start difference. First operand has 440 places, 575 transitions, 2027 flow. Second operand 11 states and 4400 transitions. [2023-11-29 03:20:31,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 657 transitions, 2946 flow [2023-11-29 03:20:31,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 657 transitions, 2924 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:20:31,462 INFO L231 Difference]: Finished difference. Result has 449 places, 597 transitions, 2677 flow [2023-11-29 03:20:31,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2009, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2677, PETRI_PLACES=449, PETRI_TRANSITIONS=597} [2023-11-29 03:20:31,463 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 13 predicate places. [2023-11-29 03:20:31,463 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 597 transitions, 2677 flow [2023-11-29 03:20:31,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:20:31,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:20:31,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:31,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 03:20:31,464 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:20:31,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:31,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1721868759, now seen corresponding path program 2 times [2023-11-29 03:20:31,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:31,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384927650] [2023-11-29 03:20:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:31,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:20:32,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:32,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384927650] [2023-11-29 03:20:32,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384927650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:32,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:32,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:20:32,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518578087] [2023-11-29 03:20:32,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:32,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:20:32,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:32,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:20:32,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:20:34,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:20:34,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 597 transitions, 2677 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:20:34,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:20:34,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:20:34,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:39,275 INFO L124 PetriNetUnfolderBase]: 6554/24031 cut-off events. [2023-11-29 03:20:39,275 INFO L125 PetriNetUnfolderBase]: For 20633/23040 co-relation queries the response was YES. [2023-11-29 03:20:39,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54629 conditions, 24031 events. 6554/24031 cut-off events. For 20633/23040 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 237819 event pairs, 1138 based on Foata normal form. 956/23468 useless extension candidates. Maximal degree in co-relation 53926. Up to 3833 conditions per place. [2023-11-29 03:20:39,437 INFO L140 encePairwiseOnDemand]: 427/456 looper letters, 343 selfloop transitions, 74 changer transitions 0/769 dead transitions. [2023-11-29 03:20:39,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 769 transitions, 4554 flow [2023-11-29 03:20:39,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:20:39,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:20:39,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5084 transitions. [2023-11-29 03:20:39,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8576248313090419 [2023-11-29 03:20:39,443 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5084 transitions. [2023-11-29 03:20:39,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5084 transitions. [2023-11-29 03:20:39,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:39,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5084 transitions. [2023-11-29 03:20:39,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 391.0769230769231) internal successors, (5084), 13 states have internal predecessors, (5084), 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) [2023-11-29 03:20:39,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:20:39,454 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:20:39,454 INFO L175 Difference]: Start difference. First operand has 449 places, 597 transitions, 2677 flow. Second operand 13 states and 5084 transitions. [2023-11-29 03:20:39,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 769 transitions, 4554 flow [2023-11-29 03:20:39,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 769 transitions, 4418 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-29 03:20:39,541 INFO L231 Difference]: Finished difference. Result has 464 places, 652 transitions, 3356 flow [2023-11-29 03:20:39,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=2561, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3356, PETRI_PLACES=464, PETRI_TRANSITIONS=652} [2023-11-29 03:20:39,542 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 28 predicate places. [2023-11-29 03:20:39,542 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 652 transitions, 3356 flow [2023-11-29 03:20:39,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:20:39,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:20:39,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:39,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 03:20:39,543 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:20:39,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:39,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1885951473, now seen corresponding path program 3 times [2023-11-29 03:20:39,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:39,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299720279] [2023-11-29 03:20:39,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:39,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:20:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299720279] [2023-11-29 03:20:40,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299720279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:40,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:40,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:20:40,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448679803] [2023-11-29 03:20:40,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:40,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:20:40,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:40,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:20:40,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:20:43,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:20:43,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 652 transitions, 3356 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:20:43,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:20:43,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:20:43,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:48,884 INFO L124 PetriNetUnfolderBase]: 6972/25362 cut-off events. [2023-11-29 03:20:48,884 INFO L125 PetriNetUnfolderBase]: For 45306/48288 co-relation queries the response was YES. [2023-11-29 03:20:48,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65078 conditions, 25362 events. 6972/25362 cut-off events. For 45306/48288 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 254310 event pairs, 1832 based on Foata normal form. 1548/25386 useless extension candidates. Maximal degree in co-relation 64347. Up to 6836 conditions per place. [2023-11-29 03:20:49,046 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 203 selfloop transitions, 191 changer transitions 0/746 dead transitions. [2023-11-29 03:20:49,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 746 transitions, 4757 flow [2023-11-29 03:20:49,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:20:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 03:20:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4783 transitions. [2023-11-29 03:20:49,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8740862573099415 [2023-11-29 03:20:49,050 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4783 transitions. [2023-11-29 03:20:49,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4783 transitions. [2023-11-29 03:20:49,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:49,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4783 transitions. [2023-11-29 03:20:49,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 398.5833333333333) internal successors, (4783), 12 states have internal predecessors, (4783), 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) [2023-11-29 03:20:49,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:20:49,058 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:20:49,058 INFO L175 Difference]: Start difference. First operand has 464 places, 652 transitions, 3356 flow. Second operand 12 states and 4783 transitions. [2023-11-29 03:20:49,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 746 transitions, 4757 flow [2023-11-29 03:20:49,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 746 transitions, 4740 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-11-29 03:20:49,351 INFO L231 Difference]: Finished difference. Result has 477 places, 683 transitions, 4414 flow [2023-11-29 03:20:49,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=3345, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4414, PETRI_PLACES=477, PETRI_TRANSITIONS=683} [2023-11-29 03:20:49,352 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 41 predicate places. [2023-11-29 03:20:49,352 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 683 transitions, 4414 flow [2023-11-29 03:20:49,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:20:49,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:20:49,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:49,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 03:20:49,353 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:20:49,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:49,353 INFO L85 PathProgramCache]: Analyzing trace with hash -431390723, now seen corresponding path program 4 times [2023-11-29 03:20:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:49,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546128722] [2023-11-29 03:20:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:49,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:20:49,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:49,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546128722] [2023-11-29 03:20:49,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546128722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:49,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:49,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:20:49,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234134692] [2023-11-29 03:20:49,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:49,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:20:49,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:49,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:20:49,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:20:52,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:20:52,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 683 transitions, 4414 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:20:52,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:20:52,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:20:52,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:20:59,137 INFO L124 PetriNetUnfolderBase]: 9190/32459 cut-off events. [2023-11-29 03:20:59,137 INFO L125 PetriNetUnfolderBase]: For 93882/97215 co-relation queries the response was YES. [2023-11-29 03:20:59,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91729 conditions, 32459 events. 9190/32459 cut-off events. For 93882/97215 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 341130 event pairs, 1221 based on Foata normal form. 1057/31713 useless extension candidates. Maximal degree in co-relation 90982. Up to 5269 conditions per place. [2023-11-29 03:20:59,438 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 347 selfloop transitions, 210 changer transitions 0/909 dead transitions. [2023-11-29 03:20:59,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 909 transitions, 7611 flow [2023-11-29 03:20:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:20:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:20:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5123 transitions. [2023-11-29 03:20:59,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8642037786774629 [2023-11-29 03:20:59,443 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5123 transitions. [2023-11-29 03:20:59,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5123 transitions. [2023-11-29 03:20:59,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:20:59,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5123 transitions. [2023-11-29 03:20:59,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 394.0769230769231) internal successors, (5123), 13 states have internal predecessors, (5123), 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) [2023-11-29 03:20:59,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:20:59,459 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:20:59,459 INFO L175 Difference]: Start difference. First operand has 477 places, 683 transitions, 4414 flow. Second operand 13 states and 5123 transitions. [2023-11-29 03:20:59,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 909 transitions, 7611 flow [2023-11-29 03:21:00,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 909 transitions, 7402 flow, removed 29 selfloop flow, removed 6 redundant places. [2023-11-29 03:21:00,050 INFO L231 Difference]: Finished difference. Result has 492 places, 772 transitions, 6360 flow [2023-11-29 03:21:00,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=4268, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6360, PETRI_PLACES=492, PETRI_TRANSITIONS=772} [2023-11-29 03:21:00,051 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 56 predicate places. [2023-11-29 03:21:00,051 INFO L495 AbstractCegarLoop]: Abstraction has has 492 places, 772 transitions, 6360 flow [2023-11-29 03:21:00,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:21:00,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:21:00,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:21:00,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 03:21:00,052 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:21:00,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:00,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1113923609, now seen corresponding path program 5 times [2023-11-29 03:21:00,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:00,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098079637] [2023-11-29 03:21:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:00,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:21:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:21:00,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:00,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098079637] [2023-11-29 03:21:00,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098079637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:21:00,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:21:00,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:21:00,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576681256] [2023-11-29 03:21:00,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:21:00,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:21:00,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:00,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:21:00,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:21:03,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:21:03,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 772 transitions, 6360 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:21:03,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:21:03,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:21:03,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:21:12,405 INFO L124 PetriNetUnfolderBase]: 9786/34454 cut-off events. [2023-11-29 03:21:12,405 INFO L125 PetriNetUnfolderBase]: For 142912/146516 co-relation queries the response was YES. [2023-11-29 03:21:12,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105725 conditions, 34454 events. 9786/34454 cut-off events. For 142912/146516 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 368200 event pairs, 1723 based on Foata normal form. 1793/34389 useless extension candidates. Maximal degree in co-relation 104960. Up to 9566 conditions per place. [2023-11-29 03:21:12,713 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 282 selfloop transitions, 263 changer transitions 0/897 dead transitions. [2023-11-29 03:21:12,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 897 transitions, 8519 flow [2023-11-29 03:21:12,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:21:12,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:21:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5178 transitions. [2023-11-29 03:21:12,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8734817813765182 [2023-11-29 03:21:12,717 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5178 transitions. [2023-11-29 03:21:12,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5178 transitions. [2023-11-29 03:21:12,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:21:12,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5178 transitions. [2023-11-29 03:21:12,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 398.3076923076923) internal successors, (5178), 13 states have internal predecessors, (5178), 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) [2023-11-29 03:21:12,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:21:12,730 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:21:12,730 INFO L175 Difference]: Start difference. First operand has 492 places, 772 transitions, 6360 flow. Second operand 13 states and 5178 transitions. [2023-11-29 03:21:12,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 897 transitions, 8519 flow [2023-11-29 03:21:13,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 897 transitions, 8458 flow, removed 28 selfloop flow, removed 3 redundant places. [2023-11-29 03:21:13,702 INFO L231 Difference]: Finished difference. Result has 507 places, 812 transitions, 7906 flow [2023-11-29 03:21:13,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=6299, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=772, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7906, PETRI_PLACES=507, PETRI_TRANSITIONS=812} [2023-11-29 03:21:13,703 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 71 predicate places. [2023-11-29 03:21:13,703 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 812 transitions, 7906 flow [2023-11-29 03:21:13,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:21:13,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:21:13,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:21:13,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 03:21:13,704 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:21:13,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:13,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1832087005, now seen corresponding path program 6 times [2023-11-29 03:21:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566303857] [2023-11-29 03:21:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:21:14,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:21:14,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:14,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566303857] [2023-11-29 03:21:14,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566303857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:21:14,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:21:14,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:21:14,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153423112] [2023-11-29 03:21:14,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:21:14,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:21:14,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:14,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:21:14,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:21:17,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:21:17,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 812 transitions, 7906 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:21:17,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:21:17,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:21:17,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:21:27,370 INFO L124 PetriNetUnfolderBase]: 11353/40136 cut-off events. [2023-11-29 03:21:27,370 INFO L125 PetriNetUnfolderBase]: For 235209/239524 co-relation queries the response was YES. [2023-11-29 03:21:27,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130524 conditions, 40136 events. 11353/40136 cut-off events. For 235209/239524 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 443737 event pairs, 1973 based on Foata normal form. 1510/39559 useless extension candidates. Maximal degree in co-relation 129744. Up to 8859 conditions per place. [2023-11-29 03:21:27,821 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 362 selfloop transitions, 298 changer transitions 0/1012 dead transitions. [2023-11-29 03:21:27,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 1012 transitions, 11325 flow [2023-11-29 03:21:27,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:21:27,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:21:27,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5146 transitions. [2023-11-29 03:21:27,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8680836707152496 [2023-11-29 03:21:27,826 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5146 transitions. [2023-11-29 03:21:27,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5146 transitions. [2023-11-29 03:21:27,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:21:27,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5146 transitions. [2023-11-29 03:21:27,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 395.84615384615387) internal successors, (5146), 13 states have internal predecessors, (5146), 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) [2023-11-29 03:21:27,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:21:27,839 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:21:27,839 INFO L175 Difference]: Start difference. First operand has 507 places, 812 transitions, 7906 flow. Second operand 13 states and 5146 transitions. [2023-11-29 03:21:27,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 1012 transitions, 11325 flow [2023-11-29 03:21:29,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 1012 transitions, 11181 flow, removed 22 selfloop flow, removed 5 redundant places. [2023-11-29 03:21:29,582 INFO L231 Difference]: Finished difference. Result has 522 places, 878 transitions, 10017 flow [2023-11-29 03:21:29,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=7772, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=812, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10017, PETRI_PLACES=522, PETRI_TRANSITIONS=878} [2023-11-29 03:21:29,583 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 86 predicate places. [2023-11-29 03:21:29,583 INFO L495 AbstractCegarLoop]: Abstraction has has 522 places, 878 transitions, 10017 flow [2023-11-29 03:21:29,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:21:29,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:21:29,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:21:29,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 03:21:29,584 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:21:29,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:29,584 INFO L85 PathProgramCache]: Analyzing trace with hash 857557413, now seen corresponding path program 7 times [2023-11-29 03:21:29,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:29,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758775973] [2023-11-29 03:21:29,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:29,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:21:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:21:30,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:30,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758775973] [2023-11-29 03:21:30,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758775973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:21:30,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:21:30,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:21:30,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46485574] [2023-11-29 03:21:30,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:21:30,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:21:30,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:30,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:21:30,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:21:33,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:21:33,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 878 transitions, 10017 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:21:33,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:21:33,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:21:33,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:21:44,786 INFO L124 PetriNetUnfolderBase]: 11887/41947 cut-off events. [2023-11-29 03:21:44,786 INFO L125 PetriNetUnfolderBase]: For 334596/339773 co-relation queries the response was YES. [2023-11-29 03:21:45,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147880 conditions, 41947 events. 11887/41947 cut-off events. For 334596/339773 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 469328 event pairs, 3928 based on Foata normal form. 2367/42199 useless extension candidates. Maximal degree in co-relation 147081. Up to 13561 conditions per place. [2023-11-29 03:21:45,319 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 288 selfloop transitions, 346 changer transitions 0/986 dead transitions. [2023-11-29 03:21:45,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 986 transitions, 12727 flow [2023-11-29 03:21:45,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:21:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 03:21:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4751 transitions. [2023-11-29 03:21:45,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8682383040935673 [2023-11-29 03:21:45,324 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4751 transitions. [2023-11-29 03:21:45,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4751 transitions. [2023-11-29 03:21:45,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:21:45,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4751 transitions. [2023-11-29 03:21:45,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 395.9166666666667) internal successors, (4751), 12 states have internal predecessors, (4751), 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) [2023-11-29 03:21:45,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:21:45,331 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:21:45,331 INFO L175 Difference]: Start difference. First operand has 522 places, 878 transitions, 10017 flow. Second operand 12 states and 4751 transitions. [2023-11-29 03:21:45,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 986 transitions, 12727 flow [2023-11-29 03:21:47,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 986 transitions, 12614 flow, removed 54 selfloop flow, removed 3 redundant places. [2023-11-29 03:21:47,962 INFO L231 Difference]: Finished difference. Result has 537 places, 925 transitions, 12372 flow [2023-11-29 03:21:47,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=9914, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12372, PETRI_PLACES=537, PETRI_TRANSITIONS=925} [2023-11-29 03:21:47,963 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 101 predicate places. [2023-11-29 03:21:47,963 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 925 transitions, 12372 flow [2023-11-29 03:21:47,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:21:47,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:21:47,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:21:47,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 03:21:47,964 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:21:47,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash -931384273, now seen corresponding path program 8 times [2023-11-29 03:21:47,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:47,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541181329] [2023-11-29 03:21:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:47,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:21:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:21:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:21:48,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:21:48,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541181329] [2023-11-29 03:21:48,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541181329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:21:48,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:21:48,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:21:48,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806908074] [2023-11-29 03:21:48,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:21:48,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:21:48,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:21:48,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:21:48,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:21:51,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:21:51,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 925 transitions, 12372 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:21:51,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:21:51,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:21:51,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:22:03,641 INFO L124 PetriNetUnfolderBase]: 12229/43384 cut-off events. [2023-11-29 03:22:03,641 INFO L125 PetriNetUnfolderBase]: For 448178/454024 co-relation queries the response was YES. [2023-11-29 03:22:04,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163077 conditions, 43384 events. 12229/43384 cut-off events. For 448178/454024 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 490117 event pairs, 2655 based on Foata normal form. 2064/43261 useless extension candidates. Maximal degree in co-relation 162272. Up to 13843 conditions per place. [2023-11-29 03:22:04,243 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 294 selfloop transitions, 368 changer transitions 0/1014 dead transitions. [2023-11-29 03:22:04,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 1014 transitions, 14924 flow [2023-11-29 03:22:04,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:22:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 03:22:04,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4717 transitions. [2023-11-29 03:22:04,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8620248538011696 [2023-11-29 03:22:04,247 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4717 transitions. [2023-11-29 03:22:04,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4717 transitions. [2023-11-29 03:22:04,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:22:04,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4717 transitions. [2023-11-29 03:22:04,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 393.0833333333333) internal successors, (4717), 12 states have internal predecessors, (4717), 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) [2023-11-29 03:22:04,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:22:04,254 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:22:04,254 INFO L175 Difference]: Start difference. First operand has 537 places, 925 transitions, 12372 flow. Second operand 12 states and 4717 transitions. [2023-11-29 03:22:04,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 1014 transitions, 14924 flow [2023-11-29 03:22:07,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 1014 transitions, 14786 flow, removed 43 selfloop flow, removed 4 redundant places. [2023-11-29 03:22:07,821 INFO L231 Difference]: Finished difference. Result has 551 places, 958 transitions, 14488 flow [2023-11-29 03:22:07,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=12245, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14488, PETRI_PLACES=551, PETRI_TRANSITIONS=958} [2023-11-29 03:22:07,822 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 115 predicate places. [2023-11-29 03:22:07,823 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 958 transitions, 14488 flow [2023-11-29 03:22:07,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:22:07,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:22:07,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:22:07,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 03:22:07,823 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:22:07,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:22:07,824 INFO L85 PathProgramCache]: Analyzing trace with hash 661323979, now seen corresponding path program 9 times [2023-11-29 03:22:07,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:22:07,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184224105] [2023-11-29 03:22:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:22:07,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:22:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:22:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:22:08,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:22:08,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184224105] [2023-11-29 03:22:08,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184224105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:22:08,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:22:08,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:22:08,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370504058] [2023-11-29 03:22:08,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:22:08,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:22:08,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:22:08,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:22:08,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:22:11,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:22:11,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 958 transitions, 14488 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:22:11,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:22:11,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:22:11,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:22:25,566 INFO L124 PetriNetUnfolderBase]: 12873/45585 cut-off events. [2023-11-29 03:22:25,566 INFO L125 PetriNetUnfolderBase]: For 620053/626154 co-relation queries the response was YES. [2023-11-29 03:22:26,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181714 conditions, 45585 events. 12873/45585 cut-off events. For 620053/626154 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 520977 event pairs, 2523 based on Foata normal form. 2562/45868 useless extension candidates. Maximal degree in co-relation 180901. Up to 14053 conditions per place. [2023-11-29 03:22:26,253 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 345 selfloop transitions, 387 changer transitions 0/1084 dead transitions. [2023-11-29 03:22:26,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 1084 transitions, 17706 flow [2023-11-29 03:22:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:22:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:22:26,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5149 transitions. [2023-11-29 03:22:26,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8685897435897436 [2023-11-29 03:22:26,258 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5149 transitions. [2023-11-29 03:22:26,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5149 transitions. [2023-11-29 03:22:26,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:22:26,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5149 transitions. [2023-11-29 03:22:26,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 396.0769230769231) internal successors, (5149), 13 states have internal predecessors, (5149), 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) [2023-11-29 03:22:26,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:22:26,267 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:22:26,267 INFO L175 Difference]: Start difference. First operand has 551 places, 958 transitions, 14488 flow. Second operand 13 states and 5149 transitions. [2023-11-29 03:22:26,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 1084 transitions, 17706 flow [2023-11-29 03:22:31,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 1084 transitions, 17633 flow, removed 34 selfloop flow, removed 3 redundant places. [2023-11-29 03:22:31,686 INFO L231 Difference]: Finished difference. Result has 566 places, 1001 transitions, 17030 flow [2023-11-29 03:22:31,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=14421, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=348, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=17030, PETRI_PLACES=566, PETRI_TRANSITIONS=1001} [2023-11-29 03:22:31,687 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 130 predicate places. [2023-11-29 03:22:31,687 INFO L495 AbstractCegarLoop]: Abstraction has has 566 places, 1001 transitions, 17030 flow [2023-11-29 03:22:31,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:22:31,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:22:31,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:22:31,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 03:22:31,688 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:22:31,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:22:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash -227358305, now seen corresponding path program 10 times [2023-11-29 03:22:31,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:22:31,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399952862] [2023-11-29 03:22:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:22:31,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:22:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:22:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:22:32,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:22:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399952862] [2023-11-29 03:22:32,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399952862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:22:32,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:22:32,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:22:32,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091211613] [2023-11-29 03:22:32,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:22:32,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:22:32,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:22:32,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:22:32,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:22:35,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:22:35,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 1001 transitions, 17030 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:22:35,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:22:35,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:22:35,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:22:50,676 INFO L124 PetriNetUnfolderBase]: 13761/48441 cut-off events. [2023-11-29 03:22:50,676 INFO L125 PetriNetUnfolderBase]: For 813375/820096 co-relation queries the response was YES. [2023-11-29 03:22:51,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204998 conditions, 48441 events. 13761/48441 cut-off events. For 813375/820096 co-relation queries the response was YES. Maximal size of possible extension queue 698. Compared 560826 event pairs, 2267 based on Foata normal form. 2900/48966 useless extension candidates. Maximal degree in co-relation 204178. Up to 12335 conditions per place. [2023-11-29 03:22:51,469 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 419 selfloop transitions, 380 changer transitions 0/1151 dead transitions. [2023-11-29 03:22:51,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 1151 transitions, 20671 flow [2023-11-29 03:22:51,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:22:51,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:22:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5164 transitions. [2023-11-29 03:22:51,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8711201079622132 [2023-11-29 03:22:51,473 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5164 transitions. [2023-11-29 03:22:51,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5164 transitions. [2023-11-29 03:22:51,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:22:51,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5164 transitions. [2023-11-29 03:22:51,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 397.2307692307692) internal successors, (5164), 13 states have internal predecessors, (5164), 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) [2023-11-29 03:22:51,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:22:51,481 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:22:51,481 INFO L175 Difference]: Start difference. First operand has 566 places, 1001 transitions, 17030 flow. Second operand 13 states and 5164 transitions. [2023-11-29 03:22:51,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 1151 transitions, 20671 flow [2023-11-29 03:22:58,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 1151 transitions, 20148 flow, removed 33 selfloop flow, removed 6 redundant places. [2023-11-29 03:22:58,656 INFO L231 Difference]: Finished difference. Result has 579 places, 1049 transitions, 19268 flow [2023-11-29 03:22:58,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=16531, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=337, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19268, PETRI_PLACES=579, PETRI_TRANSITIONS=1049} [2023-11-29 03:22:58,657 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 143 predicate places. [2023-11-29 03:22:58,657 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 1049 transitions, 19268 flow [2023-11-29 03:22:58,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:22:58,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:22:58,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:22:58,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 03:22:58,658 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:22:58,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:22:58,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1741924645, now seen corresponding path program 11 times [2023-11-29 03:22:58,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:22:58,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224923708] [2023-11-29 03:22:58,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:22:58,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:22:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:22:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:22:59,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:22:59,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224923708] [2023-11-29 03:22:59,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224923708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:22:59,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:22:59,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:22:59,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950922187] [2023-11-29 03:22:59,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:22:59,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:22:59,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:22:59,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:22:59,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:23:02,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:23:02,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 1049 transitions, 19268 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:23:02,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:23:02,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:23:02,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:23:19,253 INFO L124 PetriNetUnfolderBase]: 14405/50660 cut-off events. [2023-11-29 03:23:19,253 INFO L125 PetriNetUnfolderBase]: For 1026276/1033879 co-relation queries the response was YES. [2023-11-29 03:23:19,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224951 conditions, 50660 events. 14405/50660 cut-off events. For 1026276/1033879 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 592615 event pairs, 3013 based on Foata normal form. 2964/51161 useless extension candidates. Maximal degree in co-relation 224123. Up to 15997 conditions per place. [2023-11-29 03:23:20,167 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 383 selfloop transitions, 436 changer transitions 0/1171 dead transitions. [2023-11-29 03:23:20,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1171 transitions, 22931 flow [2023-11-29 03:23:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:23:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:23:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5115 transitions. [2023-11-29 03:23:20,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8628542510121457 [2023-11-29 03:23:20,172 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5115 transitions. [2023-11-29 03:23:20,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5115 transitions. [2023-11-29 03:23:20,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:23:20,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5115 transitions. [2023-11-29 03:23:20,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 393.46153846153845) internal successors, (5115), 13 states have internal predecessors, (5115), 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) [2023-11-29 03:23:20,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:23:20,181 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:23:20,181 INFO L175 Difference]: Start difference. First operand has 579 places, 1049 transitions, 19268 flow. Second operand 13 states and 5115 transitions. [2023-11-29 03:23:20,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 1171 transitions, 22931 flow [2023-11-29 03:23:29,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1171 transitions, 22767 flow, removed 56 selfloop flow, removed 4 redundant places. [2023-11-29 03:23:29,885 INFO L231 Difference]: Finished difference. Result has 593 places, 1092 transitions, 22159 flow [2023-11-29 03:23:29,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=19120, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=22159, PETRI_PLACES=593, PETRI_TRANSITIONS=1092} [2023-11-29 03:23:29,887 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 157 predicate places. [2023-11-29 03:23:29,887 INFO L495 AbstractCegarLoop]: Abstraction has has 593 places, 1092 transitions, 22159 flow [2023-11-29 03:23:29,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:23:29,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:23:29,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:23:29,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 03:23:29,888 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:23:29,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:23:29,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1989844271, now seen corresponding path program 12 times [2023-11-29 03:23:29,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:23:29,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716619307] [2023-11-29 03:23:29,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:23:29,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:23:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:23:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:23:30,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:23:30,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716619307] [2023-11-29 03:23:30,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716619307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:23:30,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:23:30,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:23:30,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896700122] [2023-11-29 03:23:30,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:23:30,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:23:30,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:23:30,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:23:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:23:33,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:23:33,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 1092 transitions, 22159 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:23:33,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:23:33,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:23:33,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:23:51,141 INFO L124 PetriNetUnfolderBase]: 14475/50808 cut-off events. [2023-11-29 03:23:51,141 INFO L125 PetriNetUnfolderBase]: For 1185032/1192968 co-relation queries the response was YES. [2023-11-29 03:23:52,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235955 conditions, 50808 events. 14475/50808 cut-off events. For 1185032/1192968 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 595394 event pairs, 4218 based on Foata normal form. 3618/51996 useless extension candidates. Maximal degree in co-relation 235120. Up to 14889 conditions per place. [2023-11-29 03:23:52,242 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 433 selfloop transitions, 459 changer transitions 0/1244 dead transitions. [2023-11-29 03:23:52,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 1244 transitions, 26429 flow [2023-11-29 03:23:52,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:23:52,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:23:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5134 transitions. [2023-11-29 03:23:52,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8660593792172739 [2023-11-29 03:23:52,247 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5134 transitions. [2023-11-29 03:23:52,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5134 transitions. [2023-11-29 03:23:52,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:23:52,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5134 transitions. [2023-11-29 03:23:52,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 394.9230769230769) internal successors, (5134), 13 states have internal predecessors, (5134), 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) [2023-11-29 03:23:52,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:23:52,254 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:23:52,254 INFO L175 Difference]: Start difference. First operand has 593 places, 1092 transitions, 22159 flow. Second operand 13 states and 5134 transitions. [2023-11-29 03:23:52,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 1244 transitions, 26429 flow [2023-11-29 03:24:03,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 1244 transitions, 26299 flow, removed 48 selfloop flow, removed 5 redundant places. [2023-11-29 03:24:03,504 INFO L231 Difference]: Finished difference. Result has 606 places, 1143 transitions, 25074 flow [2023-11-29 03:24:03,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=22031, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1092, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=25074, PETRI_PLACES=606, PETRI_TRANSITIONS=1143} [2023-11-29 03:24:03,506 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 170 predicate places. [2023-11-29 03:24:03,506 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 1143 transitions, 25074 flow [2023-11-29 03:24:03,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:24:03,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:24:03,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:03,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 03:24:03,507 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:24:03,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:03,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1940799425, now seen corresponding path program 13 times [2023-11-29 03:24:03,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:03,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140935616] [2023-11-29 03:24:03,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:03,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:04,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:24:04,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:04,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140935616] [2023-11-29 03:24:04,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140935616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:24:04,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:24:04,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:24:04,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751924671] [2023-11-29 03:24:04,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:24:04,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:24:04,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:04,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:24:04,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:24:06,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:24:06,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1143 transitions, 25074 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:24:06,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:24:06,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:24:06,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:24:24,526 INFO L124 PetriNetUnfolderBase]: 14819/51913 cut-off events. [2023-11-29 03:24:24,526 INFO L125 PetriNetUnfolderBase]: For 1368710/1377104 co-relation queries the response was YES. [2023-11-29 03:24:25,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252166 conditions, 51913 events. 14819/51913 cut-off events. For 1368710/1377104 co-relation queries the response was YES. Maximal size of possible extension queue 796. Compared 611552 event pairs, 1333 based on Foata normal form. 4240/53660 useless extension candidates. Maximal degree in co-relation 251324. Up to 14186 conditions per place. [2023-11-29 03:24:25,607 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 430 selfloop transitions, 455 changer transitions 0/1237 dead transitions. [2023-11-29 03:24:25,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 617 places, 1237 transitions, 28678 flow [2023-11-29 03:24:25,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:24:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 03:24:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4725 transitions. [2023-11-29 03:24:25,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8634868421052632 [2023-11-29 03:24:25,611 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4725 transitions. [2023-11-29 03:24:25,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4725 transitions. [2023-11-29 03:24:25,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:24:25,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4725 transitions. [2023-11-29 03:24:25,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 393.75) internal successors, (4725), 12 states have internal predecessors, (4725), 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) [2023-11-29 03:24:25,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:24:25,618 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 456.0) internal successors, (5928), 13 states have internal predecessors, (5928), 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) [2023-11-29 03:24:25,618 INFO L175 Difference]: Start difference. First operand has 606 places, 1143 transitions, 25074 flow. Second operand 12 states and 4725 transitions. [2023-11-29 03:24:25,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 617 places, 1237 transitions, 28678 flow [2023-11-29 03:24:39,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 1237 transitions, 28509 flow, removed 71 selfloop flow, removed 4 redundant places. [2023-11-29 03:24:39,635 INFO L231 Difference]: Finished difference. Result has 621 places, 1178 transitions, 27994 flow [2023-11-29 03:24:39,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=24905, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=420, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27994, PETRI_PLACES=621, PETRI_TRANSITIONS=1178} [2023-11-29 03:24:39,637 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 185 predicate places. [2023-11-29 03:24:39,637 INFO L495 AbstractCegarLoop]: Abstraction has has 621 places, 1178 transitions, 27994 flow [2023-11-29 03:24:39,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:24:39,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:24:39,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:24:39,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 03:24:39,638 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:24:39,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:24:39,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1138943416, now seen corresponding path program 1 times [2023-11-29 03:24:39,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:24:39,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352816853] [2023-11-29 03:24:39,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:24:39,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:24:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:24:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:24:40,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:24:40,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352816853] [2023-11-29 03:24:40,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352816853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:24:40,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:24:40,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:24:40,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542552432] [2023-11-29 03:24:40,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:24:40,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:24:40,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:24:40,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:24:40,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:24:41,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 456 [2023-11-29 03:24:41,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 1178 transitions, 27994 flow. Second operand has 12 states, 12 states have (on average 315.5) internal successors, (3786), 12 states have internal predecessors, (3786), 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) [2023-11-29 03:24:41,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:24:41,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 456 [2023-11-29 03:24:41,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:25:12,590 INFO L124 PetriNetUnfolderBase]: 25084/71832 cut-off events. [2023-11-29 03:25:12,590 INFO L125 PetriNetUnfolderBase]: For 1609124/1613824 co-relation queries the response was YES. [2023-11-29 03:25:13,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342547 conditions, 71832 events. 25084/71832 cut-off events. For 1609124/1613824 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 832831 event pairs, 6044 based on Foata normal form. 991/69250 useless extension candidates. Maximal degree in co-relation 341468. Up to 23171 conditions per place. [2023-11-29 03:25:14,192 INFO L140 encePairwiseOnDemand]: 443/456 looper letters, 653 selfloop transitions, 253 changer transitions 0/1258 dead transitions. [2023-11-29 03:25:14,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 630 places, 1258 transitions, 30818 flow [2023-11-29 03:25:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:25:14,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 03:25:14,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3604 transitions. [2023-11-29 03:25:14,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7185007974481659 [2023-11-29 03:25:14,197 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3604 transitions. [2023-11-29 03:25:14,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3604 transitions. [2023-11-29 03:25:14,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:25:14,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3604 transitions. [2023-11-29 03:25:14,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 327.6363636363636) internal successors, (3604), 11 states have internal predecessors, (3604), 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) [2023-11-29 03:25:14,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 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) [2023-11-29 03:25:14,208 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 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) [2023-11-29 03:25:14,208 INFO L175 Difference]: Start difference. First operand has 621 places, 1178 transitions, 27994 flow. Second operand 11 states and 3604 transitions. [2023-11-29 03:25:14,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 630 places, 1258 transitions, 30818 flow [2023-11-29 03:25:34,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 627 places, 1258 transitions, 30785 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-11-29 03:25:34,816 INFO L231 Difference]: Finished difference. Result has 627 places, 1177 transitions, 28475 flow [2023-11-29 03:25:34,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=27969, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28475, PETRI_PLACES=627, PETRI_TRANSITIONS=1177} [2023-11-29 03:25:34,817 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 191 predicate places. [2023-11-29 03:25:34,817 INFO L495 AbstractCegarLoop]: Abstraction has has 627 places, 1177 transitions, 28475 flow [2023-11-29 03:25:34,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 315.5) internal successors, (3786), 12 states have internal predecessors, (3786), 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) [2023-11-29 03:25:34,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:25:34,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:25:34,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 03:25:34,818 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:25:34,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:25:34,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1060647665, now seen corresponding path program 14 times [2023-11-29 03:25:34,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:25:34,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090095222] [2023-11-29 03:25:34,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:25:34,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:25:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:25:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:25:35,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:25:35,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090095222] [2023-11-29 03:25:35,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090095222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:25:35,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:25:35,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:25:35,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196641281] [2023-11-29 03:25:35,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:25:35,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:25:35,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:25:35,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:25:35,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:25:38,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:25:38,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 1177 transitions, 28475 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:25:38,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:25:38,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:25:38,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:25:59,399 INFO L124 PetriNetUnfolderBase]: 15411/53756 cut-off events. [2023-11-29 03:25:59,400 INFO L125 PetriNetUnfolderBase]: For 1679565/1688380 co-relation queries the response was YES. [2023-11-29 03:26:00,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278501 conditions, 53756 events. 15411/53756 cut-off events. For 1679565/1688380 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 638557 event pairs, 1315 based on Foata normal form. 4525/55716 useless extension candidates. Maximal degree in co-relation 277621. Up to 14186 conditions per place. [2023-11-29 03:26:00,569 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 473 selfloop transitions, 471 changer transitions 0/1295 dead transitions. [2023-11-29 03:26:00,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 1295 transitions, 32687 flow [2023-11-29 03:26:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:26:00,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:26:00,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5121 transitions. [2023-11-29 03:26:00,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8638663967611336 [2023-11-29 03:26:00,573 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5121 transitions. [2023-11-29 03:26:00,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5121 transitions. [2023-11-29 03:26:00,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:00,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5121 transitions. [2023-11-29 03:26:00,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 393.9230769230769) internal successors, (5121), 13 states have internal predecessors, (5121), 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) [2023-11-29 03:26:00,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:26:00,581 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:26:00,581 INFO L175 Difference]: Start difference. First operand has 627 places, 1177 transitions, 28475 flow. Second operand 13 states and 5121 transitions. [2023-11-29 03:26:00,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 1295 transitions, 32687 flow [2023-11-29 03:26:17,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 1295 transitions, 32163 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-11-29 03:26:17,592 INFO L231 Difference]: Finished difference. Result has 637 places, 1217 transitions, 31452 flow [2023-11-29 03:26:17,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=28023, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=31452, PETRI_PLACES=637, PETRI_TRANSITIONS=1217} [2023-11-29 03:26:17,594 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 201 predicate places. [2023-11-29 03:26:17,594 INFO L495 AbstractCegarLoop]: Abstraction has has 637 places, 1217 transitions, 31452 flow [2023-11-29 03:26:17,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:26:17,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:26:17,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:26:17,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 03:26:17,595 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:26:17,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:26:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash 567060673, now seen corresponding path program 15 times [2023-11-29 03:26:17,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:26:17,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146018251] [2023-11-29 03:26:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:26:17,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:26:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:26:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:26:18,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:26:18,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146018251] [2023-11-29 03:26:18,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146018251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:26:18,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:26:18,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:26:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952422565] [2023-11-29 03:26:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:26:18,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:26:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:26:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:26:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:26:20,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 456 [2023-11-29 03:26:20,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 1217 transitions, 31452 flow. Second operand has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:26:20,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:26:20,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 456 [2023-11-29 03:26:20,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:26:42,680 INFO L124 PetriNetUnfolderBase]: 15430/53958 cut-off events. [2023-11-29 03:26:42,680 INFO L125 PetriNetUnfolderBase]: For 1816282/1825936 co-relation queries the response was YES. [2023-11-29 03:26:43,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287644 conditions, 53958 events. 15430/53958 cut-off events. For 1816282/1825936 co-relation queries the response was YES. Maximal size of possible extension queue 843. Compared 642467 event pairs, 1235 based on Foata normal form. 4546/55948 useless extension candidates. Maximal degree in co-relation 286763. Up to 13042 conditions per place. [2023-11-29 03:26:44,138 INFO L140 encePairwiseOnDemand]: 411/456 looper letters, 528 selfloop transitions, 486 changer transitions 0/1365 dead transitions. [2023-11-29 03:26:44,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 1365 transitions, 36260 flow [2023-11-29 03:26:44,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:26:44,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 03:26:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 5123 transitions. [2023-11-29 03:26:44,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8642037786774629 [2023-11-29 03:26:44,144 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 5123 transitions. [2023-11-29 03:26:44,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 5123 transitions. [2023-11-29 03:26:44,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:26:44,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 5123 transitions. [2023-11-29 03:26:44,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 394.0769230769231) internal successors, (5123), 13 states have internal predecessors, (5123), 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) [2023-11-29 03:26:44,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:26:44,157 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 456.0) internal successors, (6384), 14 states have internal predecessors, (6384), 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) [2023-11-29 03:26:44,157 INFO L175 Difference]: Start difference. First operand has 637 places, 1217 transitions, 31452 flow. Second operand 13 states and 5123 transitions. [2023-11-29 03:26:44,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 1365 transitions, 36260 flow [2023-11-29 03:27:01,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 1365 transitions, 36103 flow, removed 62 selfloop flow, removed 4 redundant places. [2023-11-29 03:27:01,627 INFO L231 Difference]: Finished difference. Result has 652 places, 1265 transitions, 34767 flow [2023-11-29 03:27:01,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=31301, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=440, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=737, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=34767, PETRI_PLACES=652, PETRI_TRANSITIONS=1265} [2023-11-29 03:27:01,629 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 216 predicate places. [2023-11-29 03:27:01,629 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 1265 transitions, 34767 flow [2023-11-29 03:27:01,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 378.3333333333333) internal successors, (4540), 12 states have internal predecessors, (4540), 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) [2023-11-29 03:27:01,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:27:01,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:27:01,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 03:27:01,630 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:27:01,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:27:01,630 INFO L85 PathProgramCache]: Analyzing trace with hash 436992456, now seen corresponding path program 1 times [2023-11-29 03:27:01,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:27:01,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006761852] [2023-11-29 03:27:01,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:27:01,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:27:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:27:01,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:27:01,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:27:01,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006761852] [2023-11-29 03:27:01,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006761852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:27:01,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:27:01,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:27:01,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802685526] [2023-11-29 03:27:01,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:27:01,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:27:01,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:27:01,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:27:01,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:27:02,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 456 [2023-11-29 03:27:02,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 1265 transitions, 34767 flow. Second operand has 6 states, 6 states have (on average 349.5) internal successors, (2097), 6 states have internal predecessors, (2097), 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) [2023-11-29 03:27:02,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:27:02,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 456 [2023-11-29 03:27:02,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:27:33,441 INFO L124 PetriNetUnfolderBase]: 20109/67635 cut-off events. [2023-11-29 03:27:33,441 INFO L125 PetriNetUnfolderBase]: For 2195905/2201623 co-relation queries the response was YES. [2023-11-29 03:27:35,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359760 conditions, 67635 events. 20109/67635 cut-off events. For 2195905/2201623 co-relation queries the response was YES. Maximal size of possible extension queue 805. Compared 818649 event pairs, 9708 based on Foata normal form. 1432/65653 useless extension candidates. Maximal degree in co-relation 358881. Up to 28459 conditions per place. [2023-11-29 03:27:35,465 INFO L140 encePairwiseOnDemand]: 445/456 looper letters, 643 selfloop transitions, 165 changer transitions 0/1407 dead transitions. [2023-11-29 03:27:35,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 1407 transitions, 39516 flow [2023-11-29 03:27:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:27:35,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:27:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2195 transitions. [2023-11-29 03:27:35,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8022660818713451 [2023-11-29 03:27:35,467 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2195 transitions. [2023-11-29 03:27:35,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2195 transitions. [2023-11-29 03:27:35,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:27:35,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2195 transitions. [2023-11-29 03:27:35,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 365.8333333333333) internal successors, (2195), 6 states have internal predecessors, (2195), 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) [2023-11-29 03:27:35,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:27:35,470 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:27:35,470 INFO L175 Difference]: Start difference. First operand has 652 places, 1265 transitions, 34767 flow. Second operand 6 states and 2195 transitions. [2023-11-29 03:27:35,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 1407 transitions, 39516 flow [2023-11-29 03:28:02,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 653 places, 1407 transitions, 39204 flow, removed 137 selfloop flow, removed 4 redundant places. [2023-11-29 03:28:02,134 INFO L231 Difference]: Finished difference. Result has 658 places, 1395 transitions, 38340 flow [2023-11-29 03:28:02,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=34580, PETRI_DIFFERENCE_MINUEND_PLACES=648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=38340, PETRI_PLACES=658, PETRI_TRANSITIONS=1395} [2023-11-29 03:28:02,135 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 222 predicate places. [2023-11-29 03:28:02,135 INFO L495 AbstractCegarLoop]: Abstraction has has 658 places, 1395 transitions, 38340 flow [2023-11-29 03:28:02,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.5) internal successors, (2097), 6 states have internal predecessors, (2097), 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) [2023-11-29 03:28:02,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:28:02,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:28:02,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 03:28:02,136 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:28:02,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:28:02,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1793999826, now seen corresponding path program 1 times [2023-11-29 03:28:02,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:28:02,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242640008] [2023-11-29 03:28:02,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:28:02,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:28:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:28:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:28:02,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:28:02,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242640008] [2023-11-29 03:28:02,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242640008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:28:02,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:28:02,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:28:02,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286613864] [2023-11-29 03:28:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:28:02,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:28:02,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:28:02,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:28:02,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:28:04,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 456 [2023-11-29 03:28:04,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 658 places, 1395 transitions, 38340 flow. Second operand has 12 states, 12 states have (on average 336.8333333333333) internal successors, (4042), 12 states have internal predecessors, (4042), 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) [2023-11-29 03:28:04,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:28:04,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 456 [2023-11-29 03:28:04,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:28:36,775 INFO L124 PetriNetUnfolderBase]: 20172/67556 cut-off events. [2023-11-29 03:28:36,775 INFO L125 PetriNetUnfolderBase]: For 2210819/2216934 co-relation queries the response was YES. [2023-11-29 03:28:38,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367990 conditions, 67556 events. 20172/67556 cut-off events. For 2210819/2216934 co-relation queries the response was YES. Maximal size of possible extension queue 801. Compared 816796 event pairs, 5131 based on Foata normal form. 1645/66019 useless extension candidates. Maximal degree in co-relation 367063. Up to 13565 conditions per place. [2023-11-29 03:28:38,617 INFO L140 encePairwiseOnDemand]: 443/456 looper letters, 691 selfloop transitions, 253 changer transitions 0/1477 dead transitions. [2023-11-29 03:28:38,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 667 places, 1477 transitions, 41460 flow [2023-11-29 03:28:38,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:28:38,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 03:28:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3814 transitions. [2023-11-29 03:28:38,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7603668261562998 [2023-11-29 03:28:38,620 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3814 transitions. [2023-11-29 03:28:38,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3814 transitions. [2023-11-29 03:28:38,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:28:38,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3814 transitions. [2023-11-29 03:28:38,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 346.72727272727275) internal successors, (3814), 11 states have internal predecessors, (3814), 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) [2023-11-29 03:28:38,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 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) [2023-11-29 03:28:38,626 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 456.0) internal successors, (5472), 12 states have internal predecessors, (5472), 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) [2023-11-29 03:28:38,626 INFO L175 Difference]: Start difference. First operand has 658 places, 1395 transitions, 38340 flow. Second operand 11 states and 3814 transitions. [2023-11-29 03:28:38,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 667 places, 1477 transitions, 41460 flow [2023-11-29 03:29:05,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 1477 transitions, 41094 flow, removed 183 selfloop flow, removed 0 redundant places. [2023-11-29 03:29:05,963 INFO L231 Difference]: Finished difference. Result has 667 places, 1394 transitions, 38476 flow [2023-11-29 03:29:05,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=37970, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=38476, PETRI_PLACES=667, PETRI_TRANSITIONS=1394} [2023-11-29 03:29:05,964 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 231 predicate places. [2023-11-29 03:29:05,964 INFO L495 AbstractCegarLoop]: Abstraction has has 667 places, 1394 transitions, 38476 flow [2023-11-29 03:29:05,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 336.8333333333333) internal successors, (4042), 12 states have internal predecessors, (4042), 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) [2023-11-29 03:29:05,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:29:05,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:29:05,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 03:29:05,965 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:29:05,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:29:05,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1947881399, now seen corresponding path program 1 times [2023-11-29 03:29:05,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:29:05,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953315835] [2023-11-29 03:29:05,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:29:05,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:29:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:29:06,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:29:06,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:29:06,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953315835] [2023-11-29 03:29:06,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953315835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:29:06,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:29:06,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:29:06,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908148596] [2023-11-29 03:29:06,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:29:06,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:29:06,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:29:06,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:29:06,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:29:06,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 456 [2023-11-29 03:29:06,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 667 places, 1394 transitions, 38476 flow. Second operand has 6 states, 6 states have (on average 335.3333333333333) internal successors, (2012), 6 states have internal predecessors, (2012), 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) [2023-11-29 03:29:06,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:29:06,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 456 [2023-11-29 03:29:06,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:29:49,448 INFO L124 PetriNetUnfolderBase]: 27018/76681 cut-off events. [2023-11-29 03:29:49,448 INFO L125 PetriNetUnfolderBase]: For 2506865/2510636 co-relation queries the response was YES. [2023-11-29 03:29:51,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435393 conditions, 76681 events. 27018/76681 cut-off events. For 2506865/2510636 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 895830 event pairs, 14130 based on Foata normal form. 1057/74928 useless extension candidates. Maximal degree in co-relation 434320. Up to 40438 conditions per place. [2023-11-29 03:29:51,643 INFO L140 encePairwiseOnDemand]: 445/456 looper letters, 829 selfloop transitions, 165 changer transitions 0/1536 dead transitions. [2023-11-29 03:29:51,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 1536 transitions, 43662 flow [2023-11-29 03:29:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:29:51,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:29:51,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2120 transitions. [2023-11-29 03:29:51,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7748538011695907 [2023-11-29 03:29:51,646 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2120 transitions. [2023-11-29 03:29:51,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2120 transitions. [2023-11-29 03:29:51,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:29:51,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2120 transitions. [2023-11-29 03:29:51,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 353.3333333333333) internal successors, (2120), 6 states have internal predecessors, (2120), 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) [2023-11-29 03:29:51,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:29:51,649 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 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) [2023-11-29 03:29:51,649 INFO L175 Difference]: Start difference. First operand has 667 places, 1394 transitions, 38476 flow. Second operand 6 states and 2120 transitions. [2023-11-29 03:29:51,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 1536 transitions, 43662 flow [2023-11-29 03:30:33,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 664 places, 1536 transitions, 43269 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-29 03:30:33,260 INFO L231 Difference]: Finished difference. Result has 669 places, 1524 transitions, 42033 flow [2023-11-29 03:30:33,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=38083, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=42033, PETRI_PLACES=669, PETRI_TRANSITIONS=1524} [2023-11-29 03:30:33,261 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, 233 predicate places. [2023-11-29 03:30:33,261 INFO L495 AbstractCegarLoop]: Abstraction has has 669 places, 1524 transitions, 42033 flow [2023-11-29 03:30:33,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 335.3333333333333) internal successors, (2012), 6 states have internal predecessors, (2012), 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) [2023-11-29 03:30:33,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:30:33,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:30:33,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 03:30:33,262 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-29 03:30:33,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:30:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1045509099, now seen corresponding path program 1 times [2023-11-29 03:30:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:30:33,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779423905] [2023-11-29 03:30:33,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:30:33,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:30:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:30:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:30:33,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:30:33,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779423905] [2023-11-29 03:30:33,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779423905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:30:33,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:30:33,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:30:33,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604258635] [2023-11-29 03:30:33,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:30:33,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:30:33,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:30:33,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:30:33,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:30:34,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 456 [2023-11-29 03:30:34,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 1524 transitions, 42033 flow. Second operand has 6 states, 6 states have (on average 336.1666666666667) internal successors, (2017), 6 states have internal predecessors, (2017), 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) [2023-11-29 03:30:34,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:30:34,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 456 [2023-11-29 03:30:34,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand